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Groups > linux.kernel > #1464054 > unrolled thread

[PATCH 00/80] staging: lustre: majority of missing fixes for 2.6 release

Started byJames Simmons <jsimmons@infradead.org>
First post2016-08-16 22:20 +0200
Last post2016-08-16 22:40 +0200
Articles 18 on this page of 78 — 1 participant

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  [PATCH 00/80] staging: lustre: majority of missing fixes for 2.6 release James Simmons <jsimmons@infradead.org> - 2016-08-16 22:20 +0200
    [PATCH 01/80] staging: lustre: llite: add md_op_data parameter to ll_get_dir_page James Simmons <jsimmons@infradead.org> - 2016-08-16 22:20 +0200
    [PATCH 72/80] staging: lustre: obd: validate open handle cookies James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 14/80] staging: lustre: delete striped directory James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 42/80] staging: lustre: llite: validate names James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 64/80] staging: lustre: ptlrpc: add OBD_CONNECT_UNLINK_CLOSE flag James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 75/80] staging: lustre: llite: set op_max_pages James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 54/80] staging: lustre: llite: set dir LOV xattr length variable James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 45/80] staging: lustre: llite: Fix the deadlock in balance_dirty_pages() James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 60/80] staging: lustre: ldlm: improve ldlm_lock_create() return value James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 80/80] staging: lustre: lnet: Stop Infinite CON RACE Condition James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 73/80] staging: lustre: lmv: build error with gcc 4.7.0 20110509 James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 49/80] staging: lustre: lmv: validate lock with correct stripe FID James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 53/80] staging: lustre: obd: rename lsr_padding to lsr_valid James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 56/80] staging: lustre: clio: Reduce memory overhead of per-page allocation James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 74/80] staging: lustre: obd: implement md_read_page James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 26/80] staging: lustre: use bool for several function in lustre_idl.h/lustre_fid.h James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 13/80] staging: lustre: llite: fix "getdirstripe" to show stripe info James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 58/80] staging: lustre: mdc: always use D_INFO for debug info when mdc_put_rpc_lock fails James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 68/80] staging: lustre: lmv: build master LMV EA dynamically build via readdir James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 19/80] staging: lustre: libcfs: Only dump log once per sec. to avoid EEXIST James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 57/80] staging: lustre: osc: revise unstable pages accounting James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 66/80] staging: lustre: lmv: try all stripes for unknown hash functions James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 52/80] staging: lustre: llite: use the correct mode for striped directory James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 59/80] staging: lustre: fld: add fld description documentation James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 34/80] staging: lustre: lmv: rename request to preq in lmv_getattr_name() James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 15/80] staging: lustre: obdclass: fix lmd_parse() to handle comma-separated NIDs James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 51/80] staging: lustre: lmv: Match MDT where the FID locates first James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 61/80] staging: lustre: obdclass: compile issues with variable not being initialized James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 76/80] staging: lustre: lnet: Do not drop message when shutting down LNet James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 46/80] staging: lustre: llite: Change readdir BRW metrics James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 41/80] staging: lustre: lmv: separate master object with master stripe James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 71/80] staging: lustre: llite: remove assert for acl refcount James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 70/80] staging: lustre: include: fix one off errors in lustre_id.h James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 47/80] staging: lustre: uapi: reduce scope of lustre_idl.h James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 77/80] staging: lustre: lnet: Correct position of lnet_ni_decref() James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 62/80] staging: lustre: obd: limit lu_object cache James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 63/80] staging: lustre: fid: do open-by-fid by default James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 07/80] staging: lustre: lmv: remove unused lmv_get_mea function James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 67/80] staging: lustre: ptlrpc: request gets stuck in UNREGISTERING phase James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 50/80] staging: lustre: lov: new pattern flag for partially repaired file James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 79/80] staging: lustre: lnet: lock improvement for ko2iblnd James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 04/80] staging: lustre: llite: pass inode to ll_release_page James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 28/80] staging: lustre: lmv: access lum_stripe_offset as little endian James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 32/80] staging: lustre: lov: handle the case of stripe size is not power 2 James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 65/80] staging: lustre: llog: keep llog ctxt indices constant James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 17/80] staging: lustre: add ability to migrate inodes. James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 48/80] staging: lustre: llite: a few fixes about readdir of striped dir. James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 69/80] staging: lustre: osc: Automatically increase the max_dirty_mb James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 78/80] staging: lustre: lnet: make connection more stable with packet loss James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 43/80] staging: lustre: llite: fix inconsistencies of root squash feature James Simmons <jsimmons@infradead.org> - 2016-08-16 22:30 +0200
    [PATCH 30/80] staging: lustre: lmv: Ensure lmv_intent_lookup cleans up reqp James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 40/80] staging: lustre: ptlrpc: Early replies need to honor at_max James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 37/80] staging: lustre: ldlm: flock completion fixes. James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 11/80] staging: lustre: lmv: replace obd_free_memmd with lmv_free_memmd James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 39/80] staging: lustre: llite: add error handler in inode prepare phase James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 21/80] staging: lustre: osc: allow to call brw_commit() multiple times James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 27/80] staging: lustre: simplify inline functions in lustre_fid.h James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 02/80] staging: lustre: llite: remove comment from ll_dir_read James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 29/80] staging: lustre: lmv: lookup remote migrating object in LMV James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 20/80] staging: lustre: llite: enable clients to inject error for lfsck James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 18/80] staging: lustre: lmv: fix issue found by Klocwork Insight tool James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 25/80] staging: lustre: const correct FID/OSTID/... helpers James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 10/80] staging: lustre: lmv: remove lmv_get_easize James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 08/80] staging: lustre: lmv: remove duplicate MAX_HASH_* James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 22/80] staging: lustre: llite: a few fixes for migration. James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 33/80] staging: lustre: lmv: cleanup req in lmv_getattr_name() James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 06/80] staging: lustre: mdc: don't take rpc lock for readdir case James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 03/80] staging: lustre: llite: style cleanup for llite_internal.h James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 16/80] staging: lustre: obdclass: bug fixes for lu_device_type handling James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 24/80] staging: lustre: don't need to const __u64 parameters for lustre_idl.h James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 36/80] staging: lustre: reorder LOV_MAGIC_* definition James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 38/80] staging: lustre: move ioctls to lustre_ioctl.h James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 35/80] staging: lustre: obdclass: unified flow control interfaces James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 09/80] staging: lustre: lmv: change handling of lmv striping information James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 23/80] staging: lustre: mdc: fixup MDS_SWAP_LAYOUTS ELC handling James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 31/80] staging: lustre: llite: avoid a deadlock in page write James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200
    [PATCH 44/80] staging: lustre: Remove static declaration in anonymous union James Simmons <jsimmons@infradead.org> - 2016-08-16 22:40 +0200

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#1464124 — [PATCH 20/80] staging: lustre: llite: enable clients to inject error for lfsck

FromJames Simmons <jsimmons@infradead.org>
Date2016-08-16 22:40 +0200
Subject[PATCH 20/80] staging: lustre: llite: enable clients to inject error for lfsck
Message-ID<s6Tjr-7Qi-19@gated-at.bofh.it>
In reply to#1464054
From: Fan Yong <fan.yong@intel.com>

This enables the client to inject an error by altering
the parent FID in order to test if the server side file
system checker behaves properly.

Signed-off-by: Fan Yong <fan.yong@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3951
Reviewed-on: http://review.whamcloud.com/7667
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
 .../staging/lustre/lustre/include/obd_support.h    |    1 +
 drivers/staging/lustre/lustre/llite/vvp_req.c      |    2 ++
 2 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/drivers/staging/lustre/lustre/include/obd_support.h b/drivers/staging/lustre/lustre/include/obd_support.h
index 845e64a..71bf844 100644
--- a/drivers/staging/lustre/lustre/include/obd_support.h
+++ b/drivers/staging/lustre/lustre/include/obd_support.h
@@ -474,6 +474,7 @@ extern char obd_jobid_var[];
 #define OBD_FAIL_LFSCK_CRASH		0x160a
 #define OBD_FAIL_LFSCK_NO_AUTO		0x160b
 #define OBD_FAIL_LFSCK_NO_DOUBLESCAN	0x160c
+#define OBD_FAIL_LFSCK_INVALID_PFID	0x1619
 
 /* UPDATE */
 #define OBD_FAIL_UPDATE_OBJ_NET			0x1700
diff --git a/drivers/staging/lustre/lustre/llite/vvp_req.c b/drivers/staging/lustre/lustre/llite/vvp_req.c
index 9fe9d6c..0567a15 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_req.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_req.c
@@ -83,6 +83,8 @@ static void vvp_req_attr_set(const struct lu_env *env,
 	}
 	obdo_from_inode(oa, inode, valid_flags & flags);
 	obdo_set_parent_fid(oa, &ll_i2info(inode)->lli_fid);
+	if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_INVALID_PFID))
+		oa->o_parent_oid++;
 	memcpy(attr->cra_jobid, ll_i2info(inode)->lli_jobid,
 	       JOBSTATS_JOBID_SIZE);
 }
-- 
1.7.1

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#1464125 — [PATCH 18/80] staging: lustre: lmv: fix issue found by Klocwork Insight tool

FromJames Simmons <jsimmons@infradead.org>
Date2016-08-16 22:40 +0200
Subject[PATCH 18/80] staging: lustre: lmv: fix issue found by Klocwork Insight tool
Message-ID<s6Tjr-7Qi-23@gated-at.bofh.it>
In reply to#1464054
From: Dmitry Eremin <dmitry.eremin@intel.com>

'plock.cookie' might be used uninitialized in this function.

sscanf format specification '%d' expects type 'int *' for 'd',
but parameter 3 has a different type '__u32*'

Signed-off-by: Dmitry Eremin <dmitry.eremin@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4629
Reviewed-on: http://review.whamcloud.com/9390
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: James Simmons <uja.ornl@gmail.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
 drivers/staging/lustre/lustre/lmv/lmv_intent.c |    6 ++++--
 drivers/staging/lustre/lustre/lmv/lmv_obd.c    |    2 +-
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/lustre/lustre/lmv/lmv_intent.c b/drivers/staging/lustre/lustre/lmv/lmv_intent.c
index 2bc1098..51b7048 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_intent.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_intent.c
@@ -137,8 +137,10 @@ static int lmv_intent_remote(struct obd_export *exp, void *lmm,
 		it->it_remote_lock_mode = it->it_lock_mode;
 	}
 
-	it->it_lock_handle = plock.cookie;
-	it->it_lock_mode = pmode;
+	if (pmode) {
+		it->it_lock_handle = plock.cookie;
+		it->it_lock_mode = pmode;
+	}
 
 out_free_op_data:
 	kfree(op_data);
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
index 09b2efe..c005a66 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
@@ -1419,7 +1419,7 @@ static int lmv_process_config(struct obd_device *obd, u32 len, void *buf)
 
 		obd_str2uuid(&obd_uuid,  lustre_cfg_buf(lcfg, 1));
 
-		if (sscanf(lustre_cfg_buf(lcfg, 2), "%d", &index) != 1) {
+		if (sscanf(lustre_cfg_buf(lcfg, 2), "%u", &index) != 1) {
 			rc = -EINVAL;
 			goto out;
 		}
-- 
1.7.1

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#1464126 — [PATCH 25/80] staging: lustre: const correct FID/OSTID/... helpers

FromJames Simmons <jsimmons@infradead.org>
Date2016-08-16 22:40 +0200
Subject[PATCH 25/80] staging: lustre: const correct FID/OSTID/... helpers
Message-ID<s6Tjs-7Qi-27@gated-at.bofh.it>
In reply to#1464054
From: John L. Hammond <john.hammond@intel.com>

Add a const qualifier wherever possible to the pointer parameters of
the inline helper functions in lustre_idl.h and lustre_fid.h.

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2675
Reviewed-on: http://review.whamcloud.com/8641
Reviewed-by: wangdi <di.wang@intel.com>
Reviewed-by: Fan Yong <fan.yong@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
 .../lustre/lustre/include/lustre/lustre_idl.h      |   28 ++++++++++----------
 drivers/staging/lustre/lustre/include/lustre_fid.h |    9 +++---
 2 files changed, 19 insertions(+), 18 deletions(-)

diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
index 87e79b9..c932e20 100644
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
@@ -1033,7 +1033,7 @@ static inline int lu_dirent_calc_size(int namelen, __u16 attr)
 	return (size + 7) & ~7;
 }
 
-static inline int lu_dirent_size(struct lu_dirent *ent)
+static inline int lu_dirent_size(const struct lu_dirent *ent)
 {
 	if (le16_to_cpu(ent->lde_reclen) == 0) {
 		return lu_dirent_calc_size(le16_to_cpu(ent->lde_namelen),
@@ -1067,7 +1067,7 @@ struct lustre_handle {
 
 #define DEAD_HANDLE_MAGIC 0xdeadbeefcafebabeULL
 
-static inline int lustre_handle_is_used(struct lustre_handle *lh)
+static inline int lustre_handle_is_used(const struct lustre_handle *lh)
 {
 	return lh->cookie != 0ull;
 }
@@ -1079,7 +1079,7 @@ static inline int lustre_handle_equal(const struct lustre_handle *lh1,
 }
 
 static inline void lustre_handle_copy(struct lustre_handle *tgt,
-				      struct lustre_handle *src)
+				      const struct lustre_handle *src)
 {
 	tgt->cookie = src->cookie;
 }
@@ -1570,25 +1570,25 @@ static inline void lmm_oi_set_id(struct ost_id *oi, __u64 oid)
 	oi->oi.oi_id = oid;
 }
 
-static inline __u64 lmm_oi_id(struct ost_id *oi)
+static inline __u64 lmm_oi_id(const struct ost_id *oi)
 {
 	return oi->oi.oi_id;
 }
 
-static inline __u64 lmm_oi_seq(struct ost_id *oi)
+static inline __u64 lmm_oi_seq(const struct ost_id *oi)
 {
 	return oi->oi.oi_seq;
 }
 
 static inline void lmm_oi_le_to_cpu(struct ost_id *dst_oi,
-				    struct ost_id *src_oi)
+				    const struct ost_id *src_oi)
 {
 	dst_oi->oi.oi_id = le64_to_cpu(src_oi->oi.oi_id);
 	dst_oi->oi.oi_seq = le64_to_cpu(src_oi->oi.oi_seq);
 }
 
 static inline void lmm_oi_cpu_to_le(struct ost_id *dst_oi,
-				    struct ost_id *src_oi)
+				    const struct ost_id *src_oi)
 {
 	dst_oi->oi.oi_id = cpu_to_le64(src_oi->oi.oi_id);
 	dst_oi->oi.oi_seq = cpu_to_le64(src_oi->oi.oi_seq);
@@ -2724,15 +2724,15 @@ struct ldlm_extent {
 
 #define LDLM_GID_ANY ((__u64)-1)
 
-static inline int ldlm_extent_overlap(struct ldlm_extent *ex1,
-				      struct ldlm_extent *ex2)
+static inline int ldlm_extent_overlap(const struct ldlm_extent *ex1,
+				      const struct ldlm_extent *ex2)
 {
 	return (ex1->start <= ex2->end) && (ex2->start <= ex1->end);
 }
 
 /* check if @ex1 contains @ex2 */
-static inline int ldlm_extent_contain(struct ldlm_extent *ex1,
-				      struct ldlm_extent *ex2)
+static inline int ldlm_extent_contain(const struct ldlm_extent *ex1,
+				      const struct ldlm_extent *ex2)
 {
 	return (ex1->start <= ex2->start) && (ex1->end >= ex2->end);
 }
@@ -3092,7 +3092,7 @@ enum agent_req_status {
 	ARS_SUCCEED,
 };
 
-static inline char *agent_req_status2name(enum agent_req_status ars)
+static inline const char *agent_req_status2name(const enum agent_req_status ars)
 {
 	switch (ars) {
 	case ARS_WAITING:
@@ -3268,7 +3268,7 @@ struct obdo {
 #define o_cksum   o_nlink
 #define o_grant_used o_data_version
 
-static inline void lustre_set_wire_obdo(struct obd_connect_data *ocd,
+static inline void lustre_set_wire_obdo(const struct obd_connect_data *ocd,
 					struct obdo *wobdo,
 					const struct obdo *lobdo)
 {
@@ -3287,7 +3287,7 @@ static inline void lustre_set_wire_obdo(struct obd_connect_data *ocd,
 	}
 }
 
-static inline void lustre_get_wire_obdo(struct obd_connect_data *ocd,
+static inline void lustre_get_wire_obdo(const struct obd_connect_data *ocd,
 					struct obdo *lobdo,
 					const struct obdo *wobdo)
 {
diff --git a/drivers/staging/lustre/lustre/include/lustre_fid.h b/drivers/staging/lustre/lustre/include/lustre_fid.h
index 61f3930..a85183b 100644
--- a/drivers/staging/lustre/lustre/include/lustre_fid.h
+++ b/drivers/staging/lustre/lustre/include/lustre_fid.h
@@ -483,7 +483,7 @@ fid_build_pdo_res_name(const struct lu_fid *fid, unsigned int hash,
  *    res will be built from normal FID directly, i.e. res[0] = f_seq,
  *    res[1] = f_oid + f_ver.
  */
-static inline void ostid_build_res_name(struct ost_id *oi,
+static inline void ostid_build_res_name(const struct ost_id *oi,
 					struct ldlm_res_id *name)
 {
 	memset(name, 0, sizeof(*name));
@@ -498,8 +498,8 @@ static inline void ostid_build_res_name(struct ost_id *oi,
 /**
  * Return true if the resource is for the object identified by this id & group.
  */
-static inline int ostid_res_name_eq(struct ost_id *oi,
-				    struct ldlm_res_id *name)
+static inline int ostid_res_name_eq(const struct ost_id *oi,
+				    const struct ldlm_res_id *name)
 {
 	/* Note: it is just a trick here to save some effort, probably the
 	 * correct way would be turn them into the FID and compare
@@ -610,7 +610,8 @@ static inline __u32 fid_flatten32(const struct lu_fid *fid)
 	return ino ? ino : fid_oid(fid);
 }
 
-static inline int lu_fid_diff(struct lu_fid *fid1, struct lu_fid *fid2)
+static inline int lu_fid_diff(const struct lu_fid *fid1,
+			      const struct lu_fid *fid2)
 {
 	LASSERTF(fid_seq(fid1) == fid_seq(fid2), "fid1:"DFID", fid2:"DFID"\n",
 		 PFID(fid1), PFID(fid2));
-- 
1.7.1

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#1464128 — [PATCH 10/80] staging: lustre: lmv: remove lmv_get_easize

FromJames Simmons <jsimmons@infradead.org>
Date2016-08-16 22:40 +0200
Subject[PATCH 10/80] staging: lustre: lmv: remove lmv_get_easize
Message-ID<s6Tjs-7Qi-33@gated-at.bofh.it>
In reply to#1464054
From: wang di <di.wang@intel.com>

Completely replace lmv_get_easize with lmv_mds_md_size.
With this change we can delete lmv_get_easize.

Signed-off-by: wang di <di.wang@intel.com>
Reviewed-on: http://review.whamcloud.com/7043
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3531
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
 drivers/staging/lustre/lustre/lmv/lmv_internal.h |    7 -------
 drivers/staging/lustre/lustre/lmv/lmv_obd.c      |    2 +-
 2 files changed, 1 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/lustre/lustre/lmv/lmv_internal.h b/drivers/staging/lustre/lustre/lmv/lmv_internal.h
index 90a9786..f4c917b 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_internal.h
+++ b/drivers/staging/lustre/lustre/lmv/lmv_internal.h
@@ -55,13 +55,6 @@ int __lmv_fid_alloc(struct lmv_obd *lmv, struct lu_fid *fid, u32 mds);
 int lmv_fid_alloc(struct obd_export *exp, struct lu_fid *fid,
 		  struct md_op_data *op_data);
 
-static inline int lmv_get_easize(struct lmv_obd *lmv)
-{
-	return sizeof(struct lmv_stripe_md) +
-		lmv->desc.ld_tgt_count *
-		sizeof(struct lu_fid);
-}
-
 static inline struct lmv_tgt_desc *
 lmv_get_target(struct lmv_obd *lmv, u32 mds)
 {
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
index 1ba5900..0b1260d 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
@@ -558,7 +558,7 @@ int lmv_check_connect(struct obd_device *obd)
 	lmv_set_timeouts(obd);
 	class_export_put(lmv->exp);
 	lmv->connected = 1;
-	easize = lmv_get_easize(lmv);
+	easize = lmv_mds_md_size(lmv->desc.ld_tgt_count, LMV_MAGIC);
 	lmv_init_ea_size(obd->obd_self_export, easize, 0, 0, 0);
 	mutex_unlock(&lmv->lmv_init_mutex);
 	return 0;
-- 
1.7.1

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#1464129 — [PATCH 08/80] staging: lustre: lmv: remove duplicate MAX_HASH_*

FromJames Simmons <jsimmons@infradead.org>
Date2016-08-16 22:40 +0200
Subject[PATCH 08/80] staging: lustre: lmv: remove duplicate MAX_HASH_*
Message-ID<s6Tjs-7Qi-43@gated-at.bofh.it>
In reply to#1464054
From: wang di <di.wang@intel.com>

The MAX_HASH_* macros already exist in obd.h. Remove
the duplicated defines in lustre_idl.h.

Signed-off-by: wang di <di.wang@intel.com>
Reviewed-on: http://review.whamcloud.com/7043
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3531
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
 .../lustre/lustre/include/lustre/lustre_idl.h      |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
index 32471a6..5f31724 100644
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
@@ -2486,10 +2486,6 @@ struct lmv_desc {
 #define MEA_MAGIC_ALL_CHARS      0xb222a11c
 #define MEA_MAGIC_HASH_SEGMENT   0xb222a11b
 
-#define MAX_HASH_SIZE_32	 0x7fffffffUL
-#define MAX_HASH_SIZE	    0x7fffffffffffffffULL
-#define MAX_HASH_HIGHEST_BIT     0x1000000000000000ULL
-
 /* lmv structures */
 #define LMV_MAGIC_V1	0x0CD10CD0	/* normal stripe lmv magic */
 #define LMV_USER_MAGIC	0x0CD20CD0	/* default lmv magic*/
-- 
1.7.1

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#1464130 — [PATCH 22/80] staging: lustre: llite: a few fixes for migration.

FromJames Simmons <jsimmons@infradead.org>
Date2016-08-16 22:40 +0200
Subject[PATCH 22/80] staging: lustre: llite: a few fixes for migration.
Message-ID<s6Tjs-7Qi-35@gated-at.bofh.it>
In reply to#1464054
From: wang di <di.wang@intel.com>

1. Clear the client dentry cache before migrating file/directory
   to the remote MDT.

2. Do not return stripe information to client, if it did not get
   the layout lock.

Signed-off-by: wang di <di.wang@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4682
Reviewed-on: http://review.whamcloud.com/9522
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
 drivers/staging/lustre/lustre/llite/dir.c          |   22 +++---------
 drivers/staging/lustre/lustre/llite/file.c         |   34 +++++++++++---------
 .../staging/lustre/lustre/llite/llite_internal.h   |    2 +
 drivers/staging/lustre/lustre/lov/lov_object.c     |    1 +
 4 files changed, 28 insertions(+), 31 deletions(-)

diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c
index ef7322e..84bec03 100644
--- a/drivers/staging/lustre/lustre/llite/dir.c
+++ b/drivers/staging/lustre/lustre/llite/dir.c
@@ -1318,11 +1318,9 @@ static long ll_dir_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		return 0;
 	}
 	case IOC_MDC_LOOKUP: {
-		struct ptlrpc_request *request = NULL;
 		int namelen, len = 0;
 		char *buf = NULL;
 		char *filename;
-		struct md_op_data *op_data;
 
 		rc = obd_ioctl_getdata(&buf, &len, (void __user *)arg);
 		if (rc)
@@ -1338,21 +1336,13 @@ static long ll_dir_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 			goto out_free;
 		}
 
-		op_data = ll_prep_md_op_data(NULL, inode, NULL, filename, namelen,
-					     0, LUSTRE_OPC_ANY, NULL);
-		if (IS_ERR(op_data)) {
-			rc = PTR_ERR(op_data);
-			goto out_free;
-		}
-
-		op_data->op_valid = OBD_MD_FLID;
-		rc = md_getattr_name(sbi->ll_md_exp, op_data, &request);
-		ll_finish_md_op_data(op_data);
+		rc = ll_get_fid_by_name(inode, filename, namelen, NULL);
 		if (rc < 0) {
-			CDEBUG(D_INFO, "md_getattr_name: %d\n", rc);
+			CERROR("%s: lookup %.*s failed: rc = %d\n",
+			       ll_get_fsname(inode->i_sb, NULL, 0), namelen,
+			       filename, rc);
 			goto out_free;
 		}
-		ptlrpc_req_finished(request);
 out_free:
 		obd_ioctl_freedata(buf, len);
 		return rc;
@@ -1981,7 +1971,7 @@ out_quotactl:
 
 		filename = data->ioc_inlbuf1;
 		namelen = data->ioc_inllen1;
-		if (namelen < 1) {
+		if (namelen < 1 || namelen != strlen(filename) + 1) {
 			rc = -EINVAL;
 			goto migrate_free;
 		}
@@ -1992,7 +1982,7 @@ out_quotactl:
 		}
 		mdtidx = *(int *)data->ioc_inlbuf2;
 
-		rc = ll_migrate(inode, file, mdtidx, filename, namelen);
+		rc = ll_migrate(inode, file, mdtidx, filename, namelen - 1);
 migrate_free:
 		obd_ioctl_freedata(buf, len);
 
diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c
index 8d98db6..769b028 100644
--- a/drivers/staging/lustre/lustre/llite/file.c
+++ b/drivers/staging/lustre/lustre/llite/file.c
@@ -2828,8 +2828,8 @@ ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock)
 	return rc;
 }
 
-static int ll_get_fid_by_name(struct inode *parent, const char *name,
-			      int namelen, struct lu_fid *fid)
+int ll_get_fid_by_name(struct inode *parent, const char *name,
+		       int namelen, struct lu_fid *fid)
 {
 	struct md_op_data *op_data = NULL;
 	struct ptlrpc_request *req;
@@ -2843,20 +2843,19 @@ static int ll_get_fid_by_name(struct inode *parent, const char *name,
 
 	op_data->op_valid = OBD_MD_FLID;
 	rc = md_getattr_name(ll_i2sbi(parent)->ll_md_exp, op_data, &req);
+	ll_finish_md_op_data(op_data);
 	if (rc < 0)
-		goto out_free;
+		return rc;
 
 	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
 	if (!body) {
 		rc = -EFAULT;
 		goto out_req;
 	}
-	*fid = body->fid1;
+	if (fid)
+		*fid = body->fid1;
 out_req:
 	ptlrpc_req_finished(req);
-out_free:
-	if (op_data)
-		ll_finish_md_op_data(op_data);
 	return rc;
 }
 
@@ -2864,12 +2863,13 @@ int ll_migrate(struct inode *parent, struct file *file, int mdtidx,
 	       const char *name, int namelen)
 {
 	struct ptlrpc_request *request = NULL;
+	struct inode *child_inode = NULL;
 	struct dentry *dchild = NULL;
 	struct md_op_data *op_data;
 	struct qstr qstr;
 	int rc;
 
-	CDEBUG(D_VFSTRACE, "migrate %s under"DFID" to MDT%d\n",
+	CDEBUG(D_VFSTRACE, "migrate %s under "DFID" to MDT%d\n",
 	       name, PFID(ll_inode2fid(parent)), mdtidx);
 
 	op_data = ll_prep_md_op_data(NULL, parent, NULL, name, namelen,
@@ -2884,8 +2884,13 @@ int ll_migrate(struct inode *parent, struct file *file, int mdtidx,
 	dchild = d_lookup(file_dentry(file), &qstr);
 	if (dchild && dchild->d_inode) {
 		op_data->op_fid3 = *ll_inode2fid(dchild->d_inode);
+		if (dchild->d_inode) {
+			child_inode = igrab(dchild->d_inode);
+			ll_invalidate_aliases(child_inode);
+		}
+		dput(dchild);
 	} else {
-		rc = ll_get_fid_by_name(parent, name, strnlen(name, namelen),
+		rc = ll_get_fid_by_name(parent, name, namelen,
 					&op_data->op_fid3);
 		if (rc)
 			goto out_free;
@@ -2895,6 +2900,7 @@ int ll_migrate(struct inode *parent, struct file *file, int mdtidx,
 		CERROR("%s: migrate %s, but fid "DFID" is insane\n",
 		       ll_get_fsname(parent->i_sb, NULL, 0), name,
 		       PFID(&op_data->op_fid3));
+		rc = -EINVAL;
 		goto out_free;
 	}
 
@@ -2912,18 +2918,16 @@ int ll_migrate(struct inode *parent, struct file *file, int mdtidx,
 	op_data->op_mds = mdtidx;
 	op_data->op_cli_flags = CLI_MIGRATE;
 	rc = md_rename(ll_i2sbi(parent)->ll_md_exp, op_data, name,
-		       strnlen(name, namelen), name, strnlen(name, namelen),
-		       &request);
+		       namelen, name, namelen, &request);
 	if (!rc)
 		ll_update_times(request, parent);
 
 	ptlrpc_req_finished(request);
 
 out_free:
-	if (dchild) {
-		if (dchild->d_inode)
-			ll_delete_inode(dchild->d_inode);
-		dput(dchild);
+	if (child_inode) {
+		clear_nlink(child_inode);
+		iput(child_inode);
 	}
 
 	ll_finish_md_op_data(op_data);
diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h
index 69492f0..120aca3 100644
--- a/drivers/staging/lustre/lustre/llite/llite_internal.h
+++ b/drivers/staging/lustre/lustre/llite/llite_internal.h
@@ -721,6 +721,8 @@ int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat);
 struct posix_acl *ll_get_acl(struct inode *inode, int type);
 int ll_migrate(struct inode *parent, struct file *file, int mdtidx,
 	       const char *name, int namelen);
+int ll_get_fid_by_name(struct inode *parent, const char *name,
+		       int namelen, struct lu_fid *fid);
 int ll_inode_permission(struct inode *inode, int mask);
 
 int ll_lov_setstripe_ea_info(struct inode *inode, struct dentry *dentry,
diff --git a/drivers/staging/lustre/lustre/lov/lov_object.c b/drivers/staging/lustre/lustre/lov/lov_object.c
index f9621b0..2a52d0c 100644
--- a/drivers/staging/lustre/lustre/lov/lov_object.c
+++ b/drivers/staging/lustre/lustre/lov/lov_object.c
@@ -224,6 +224,7 @@ static int lov_init_raid0(const struct lu_env *env,
 
 	LASSERT(!lov->lo_lsm);
 	lov->lo_lsm = lsm_addref(lsm);
+	lov->lo_layout_invalid = true;
 	r0->lo_nr  = lsm->lsm_stripe_count;
 	LASSERT(r0->lo_nr <= lov_targets_nr(dev));
 
-- 
1.7.1

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#1464131 — [PATCH 33/80] staging: lustre: lmv: cleanup req in lmv_getattr_name()

FromJames Simmons <jsimmons@infradead.org>
Date2016-08-16 22:40 +0200
Subject[PATCH 33/80] staging: lustre: lmv: cleanup req in lmv_getattr_name()
Message-ID<s6Tjs-7Qi-39@gated-at.bofh.it>
In reply to#1464054
From: John L. Hammond <john.hammond@intel.com>

In lmv_getattr_name() don't return a freed request in the error path.

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4826
Reviewed-on: http://review.whamcloud.com/9863
Reviewed-by: Nathaniel Clark <nathaniel.l.clark@intel.com>
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
 drivers/staging/lustre/lustre/lmv/lmv_obd.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
index 5929994..f1b8ae9 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
@@ -1920,6 +1920,7 @@ lmv_getattr_name(struct obd_export *exp, struct md_op_data *op_data,
 		tgt = lmv_find_target(lmv, &rid);
 		if (IS_ERR(tgt)) {
 			ptlrpc_req_finished(*request);
+			*request = NULL;
 			return PTR_ERR(tgt);
 		}
 
-- 
1.7.1

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#1464132 — [PATCH 06/80] staging: lustre: mdc: don't take rpc lock for readdir case

FromJames Simmons <jsimmons@infradead.org>
Date2016-08-16 22:40 +0200
Subject[PATCH 06/80] staging: lustre: mdc: don't take rpc lock for readdir case
Message-ID<s6Tjs-7Qi-37@gated-at.bofh.it>
In reply to#1464054
From: wang di <di.wang@intel.com>

If the operation is IT_READDIR don't need to handle the
mdc RPC lock.

Signed-off-by: wang di <di.wang@intel.com>
Reviewed-on: http://review.whamcloud.com/10761
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4906
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
 drivers/staging/lustre/lustre/include/lustre_mdc.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/lustre/lustre/include/lustre_mdc.h b/drivers/staging/lustre/lustre/include/lustre_mdc.h
index fa62b95..0a8c639 100644
--- a/drivers/staging/lustre/lustre/include/lustre_mdc.h
+++ b/drivers/staging/lustre/lustre/include/lustre_mdc.h
@@ -96,7 +96,7 @@ static inline void mdc_get_rpc_lock(struct mdc_rpc_lock *lck,
 				    struct lookup_intent *it)
 {
 	if (it && (it->it_op == IT_GETATTR || it->it_op == IT_LOOKUP ||
-		   it->it_op == IT_LAYOUT))
+		   it->it_op == IT_LAYOUT || it->it_op == IT_READDIR))
 		return;
 
 	/* This would normally block until the existing request finishes.
@@ -136,7 +136,7 @@ static inline void mdc_put_rpc_lock(struct mdc_rpc_lock *lck,
 				    struct lookup_intent *it)
 {
 	if (it && (it->it_op == IT_GETATTR || it->it_op == IT_LOOKUP ||
-		   it->it_op == IT_LAYOUT))
+		   it->it_op == IT_LAYOUT || it->it_op == IT_READDIR))
 		return;
 
 	if (lck->rpcl_it == MDC_FAKE_RPCL_IT) { /* OBD_FAIL_MDC_RPCS_SEM */
-- 
1.7.1

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#1464135 — [PATCH 03/80] staging: lustre: llite: style cleanup for llite_internal.h

FromJames Simmons <jsimmons@infradead.org>
Date2016-08-16 22:40 +0200
Subject[PATCH 03/80] staging: lustre: llite: style cleanup for llite_internal.h
Message-ID<s6Tjs-7Qi-49@gated-at.bofh.it>
In reply to#1464054
From: wang di <di.wang@intel.com>

Group function prototypes together related to dir.c. Move
ll_release_page to be with function declarations.

Signed-off-by: wang di <di.wang@intel.com>
Reviewed-on: http://review.whamcloud.com/7043
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3531
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
 .../staging/lustre/lustre/llite/llite_internal.h   |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h
index fc0c72c..1ced397 100644
--- a/drivers/staging/lustre/lustre/llite/llite_internal.h
+++ b/drivers/staging/lustre/lustre/llite/llite_internal.h
@@ -648,15 +648,15 @@ void ll_rw_stats_tally(struct ll_sb_info *sbi, pid_t pid,
 		       size_t count, int rw);
 
 /* llite/dir.c */
-void ll_release_page(struct page *page, int remove);
 extern const struct file_operations ll_dir_operations;
 extern const struct inode_operations ll_dir_inode_operations;
-struct page *ll_get_dir_page(struct inode *dir, struct md_op_data *op_data,
-			     __u64 hash, struct ll_dir_chain *chain);
 int ll_dir_read(struct inode *inode, __u64 *ppos, struct md_op_data *op_data,
 		struct dir_context *ctx);
-
 int ll_get_mdt_idx(struct inode *inode);
+struct page *ll_get_dir_page(struct inode *dir, struct md_op_data *op_data,
+			     __u64 hash, struct ll_dir_chain *chain);
+void ll_release_page(struct page *page, int remove);
+
 /* llite/namei.c */
 extern const struct inode_operations ll_special_inode_operations;
 
-- 
1.7.1

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#1464136 — [PATCH 16/80] staging: lustre: obdclass: bug fixes for lu_device_type handling

FromJames Simmons <jsimmons@infradead.org>
Date2016-08-16 22:40 +0200
Subject[PATCH 16/80] staging: lustre: obdclass: bug fixes for lu_device_type handling
Message-ID<s6Tjs-7Qi-51@gated-at.bofh.it>
In reply to#1464054
From: Fan Yong <fan.yong@intel.com>

There was no protection when inc/dec lu_device_type::ldt_device_nr,
which may caused the ldt_device_nr to be wrong and trigger assert.
This patch redefine lu_device_type::ldt_device_nr as atomic type.

There was no protection when add/del lu_device_type::ldt_linkage
into/from the global lu_device_types list, which may caused bad
address accessing. This patch uses the existing obd_types_lock
to protect related operations.

We do NOT need lu_types_stop() any longer. Such function scans
the global lu_device_types list, and for each type item on it
which has zerod lu_device_type::ldt_device_nr, call its stop()
method. In fact, the lu_device_type::ldt_device_nr only will be
zero when the last lu_device_fini() is called, and at that time,
inside the lu_device_fini(), its stop() method will be called.
So it is unnecessary to call the stop() again via lu_types_stop().

Signed-off-by: Fan Yong <fan.yong@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4604
Reviewed-on: http://review.whamcloud.com/8694
Reviewed-by: Jian Yu <jian.yu@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
 drivers/staging/lustre/lustre/include/lu_object.h  |    3 +-
 drivers/staging/lustre/lustre/llite/vvp_dev.c      |    6 ---
 drivers/staging/lustre/lustre/obdclass/lu_object.c |   34 ++++++++++----------
 drivers/staging/lustre/lustre/obdclass/obd_mount.c |    1 -
 4 files changed, 18 insertions(+), 26 deletions(-)

diff --git a/drivers/staging/lustre/lustre/include/lu_object.h b/drivers/staging/lustre/lustre/include/lu_object.h
index 6e25c1b..25c12d8 100644
--- a/drivers/staging/lustre/lustre/include/lu_object.h
+++ b/drivers/staging/lustre/lustre/include/lu_object.h
@@ -327,7 +327,7 @@ struct lu_device_type {
 	/**
 	 * Number of existing device type instances.
 	 */
-	unsigned				ldt_device_nr;
+	atomic_t				ldt_device_nr;
 	/**
 	 * Linkage into a global list of all device types.
 	 *
@@ -673,7 +673,6 @@ void lu_object_add(struct lu_object *before, struct lu_object *o);
 
 int  lu_device_type_init(struct lu_device_type *ldt);
 void lu_device_type_fini(struct lu_device_type *ldt);
-void lu_types_stop(void);
 
 /** @} ctors */
 
diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c
index e623216..771c0bd 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_dev.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c
@@ -368,12 +368,6 @@ int cl_sb_fini(struct super_block *sb)
 		CERROR("Cannot cleanup cl-stack due to memory shortage.\n");
 		result = PTR_ERR(env);
 	}
-	/*
-	 * If mount failed (sbi->ll_cl == NULL), and this there are no other
-	 * mounts, stop device types manually (this usually happens
-	 * automatically when last device is destroyed).
-	 */
-	lu_types_stop();
 	return result;
 }
 
diff --git a/drivers/staging/lustre/lustre/obdclass/lu_object.c b/drivers/staging/lustre/lustre/obdclass/lu_object.c
index 9b03059..0c00bf8 100644
--- a/drivers/staging/lustre/lustre/obdclass/lu_object.c
+++ b/drivers/staging/lustre/lustre/obdclass/lu_object.c
@@ -726,34 +726,31 @@ int lu_device_type_init(struct lu_device_type *ldt)
 {
 	int result = 0;
 
+	atomic_set(&ldt->ldt_device_nr, 0);
 	INIT_LIST_HEAD(&ldt->ldt_linkage);
 	if (ldt->ldt_ops->ldto_init)
 		result = ldt->ldt_ops->ldto_init(ldt);
-	if (result == 0)
+
+	if (!result) {
+		spin_lock(&obd_types_lock);
 		list_add(&ldt->ldt_linkage, &lu_device_types);
+		spin_unlock(&obd_types_lock);
+	}
+
 	return result;
 }
 EXPORT_SYMBOL(lu_device_type_init);
 
 void lu_device_type_fini(struct lu_device_type *ldt)
 {
+	spin_lock(&obd_types_lock);
 	list_del_init(&ldt->ldt_linkage);
+	spin_unlock(&obd_types_lock);
 	if (ldt->ldt_ops->ldto_fini)
 		ldt->ldt_ops->ldto_fini(ldt);
 }
 EXPORT_SYMBOL(lu_device_type_fini);
 
-void lu_types_stop(void)
-{
-	struct lu_device_type *ldt;
-
-	list_for_each_entry(ldt, &lu_device_types, ldt_linkage) {
-		if (ldt->ldt_device_nr == 0 && ldt->ldt_ops->ldto_stop)
-			ldt->ldt_ops->ldto_stop(ldt);
-	}
-}
-EXPORT_SYMBOL(lu_types_stop);
-
 /**
  * Global list of all sites on this node
  */
@@ -1082,8 +1079,10 @@ EXPORT_SYMBOL(lu_device_put);
  */
 int lu_device_init(struct lu_device *d, struct lu_device_type *t)
 {
-	if (t->ldt_device_nr++ == 0 && t->ldt_ops->ldto_start)
+	if (atomic_inc_return(&t->ldt_device_nr) == 1 &&
+	    t->ldt_ops->ldto_start)
 		t->ldt_ops->ldto_start(t);
+
 	memset(d, 0, sizeof(*d));
 	atomic_set(&d->ld_ref, 0);
 	d->ld_type = t;
@@ -1098,9 +1097,8 @@ EXPORT_SYMBOL(lu_device_init);
  */
 void lu_device_fini(struct lu_device *d)
 {
-	struct lu_device_type *t;
+	struct lu_device_type *t = d->ld_type;
 
-	t = d->ld_type;
 	if (d->ld_obd) {
 		d->ld_obd->obd_lu_dev = NULL;
 		d->ld_obd = NULL;
@@ -1109,8 +1107,10 @@ void lu_device_fini(struct lu_device *d)
 	lu_ref_fini(&d->ld_reference);
 	LASSERTF(atomic_read(&d->ld_ref) == 0,
 		 "Refcount is %u\n", atomic_read(&d->ld_ref));
-	LASSERT(t->ldt_device_nr > 0);
-	if (--t->ldt_device_nr == 0 && t->ldt_ops->ldto_stop)
+	LASSERT(atomic_read(&t->ldt_device_nr) > 0);
+
+	if (atomic_dec_and_test(&t->ldt_device_nr) &&
+	    t->ldt_ops->ldto_stop)
 		t->ldt_ops->ldto_stop(t);
 }
 EXPORT_SYMBOL(lu_device_fini);
diff --git a/drivers/staging/lustre/lustre/obdclass/obd_mount.c b/drivers/staging/lustre/lustre/obdclass/obd_mount.c
index 4931e37..33d6c42 100644
--- a/drivers/staging/lustre/lustre/obdclass/obd_mount.c
+++ b/drivers/staging/lustre/lustre/obdclass/obd_mount.c
@@ -670,7 +670,6 @@ int lustre_common_put_super(struct super_block *sb)
 	}
 	/* Drop a ref to the mounted disk */
 	lustre_put_lsi(sb);
-	lu_types_stop();
 	return rc;
 }
 EXPORT_SYMBOL(lustre_common_put_super);
-- 
1.7.1

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#1464137 — [PATCH 24/80] staging: lustre: don't need to const __u64 parameters for lustre_idl.h

FromJames Simmons <jsimmons@infradead.org>
Date2016-08-16 22:40 +0200
Subject[PATCH 24/80] staging: lustre: don't need to const __u64 parameters for lustre_idl.h
Message-ID<s6Tjt-7Qi-65@gated-at.bofh.it>
In reply to#1464054
From: John L. Hammond <john.hammond@intel.com>

Remove the const for the __u64 parameters for inline functions
in lustre_idl.h.

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2675
Reviewed-on: http://review.whamcloud.com/8641
Reviewed-by: wangdi <di.wang@intel.com>
Reviewed-by: Fan Yong <fan.yong@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
 .../lustre/lustre/include/lustre/lustre_idl.h      |   20 ++++++++++----------
 1 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
index 6853f62..87e79b9 100644
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
@@ -442,7 +442,7 @@ static inline int fid_seq_is_mdt0(__u64 seq)
 	return (seq == FID_SEQ_OST_MDT0);
 }
 
-static inline int fid_seq_is_mdt(const __u64 seq)
+static inline int fid_seq_is_mdt(__u64 seq)
 {
 	return seq == FID_SEQ_OST_MDT0 || seq >= FID_SEQ_NORMAL;
 };
@@ -468,33 +468,33 @@ static inline int fid_is_llog(const struct lu_fid *fid)
 	return fid_seq_is_llog(fid_seq(fid)) && fid_oid(fid) > 0;
 }
 
-static inline int fid_seq_is_rsvd(const __u64 seq)
+static inline int fid_seq_is_rsvd(__u64 seq)
 {
 	return (seq > FID_SEQ_OST_MDT0 && seq <= FID_SEQ_RSVD);
 };
 
-static inline int fid_seq_is_special(const __u64 seq)
+static inline int fid_seq_is_special(__u64 seq)
 {
 	return seq == FID_SEQ_SPECIAL;
 };
 
-static inline int fid_seq_is_local_file(const __u64 seq)
+static inline int fid_seq_is_local_file(__u64 seq)
 {
 	return seq == FID_SEQ_LOCAL_FILE ||
 	       seq == FID_SEQ_LOCAL_NAME;
 };
 
-static inline int fid_seq_is_root(const __u64 seq)
+static inline int fid_seq_is_root(__u64 seq)
 {
 	return seq == FID_SEQ_ROOT;
 }
 
-static inline int fid_seq_is_dot(const __u64 seq)
+static inline int fid_seq_is_dot(__u64 seq)
 {
 	return seq == FID_SEQ_DOT_LUSTRE;
 }
 
-static inline int fid_seq_is_default(const __u64 seq)
+static inline int fid_seq_is_default(__u64 seq)
 {
 	return seq == FID_SEQ_LOV_DEFAULT;
 }
@@ -516,7 +516,7 @@ static inline void lu_root_fid(struct lu_fid *fid)
  * \param fid the fid to be tested.
  * \return true if the fid is a igif; otherwise false.
  */
-static inline int fid_seq_is_igif(const __u64 seq)
+static inline int fid_seq_is_igif(__u64 seq)
 {
 	return seq >= FID_SEQ_IGIF && seq <= FID_SEQ_IGIF_MAX;
 }
@@ -531,7 +531,7 @@ static inline int fid_is_igif(const struct lu_fid *fid)
  * \param fid the fid to be tested.
  * \return true if the fid is a idif; otherwise false.
  */
-static inline int fid_seq_is_idif(const __u64 seq)
+static inline int fid_seq_is_idif(__u64 seq)
 {
 	return seq >= FID_SEQ_IDIF && seq <= FID_SEQ_IDIF_MAX;
 }
@@ -546,7 +546,7 @@ static inline int fid_is_local_file(const struct lu_fid *fid)
 	return fid_seq_is_local_file(fid_seq(fid));
 }
 
-static inline int fid_seq_is_norm(const __u64 seq)
+static inline int fid_seq_is_norm(__u64 seq)
 {
 	return (seq >= FID_SEQ_NORMAL);
 }
-- 
1.7.1

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#1464138 — [PATCH 36/80] staging: lustre: reorder LOV_MAGIC_* definition

FromJames Simmons <jsimmons@infradead.org>
Date2016-08-16 22:40 +0200
Subject[PATCH 36/80] staging: lustre: reorder LOV_MAGIC_* definition
Message-ID<s6Tjt-7Qi-67@gated-at.bofh.it>
In reply to#1464054
From: Fan Yong <fan.yong@intel.com>

Since all the LOV_MAGIC_* definitions have the same
postfix values break that value out into its own
definition. With this we can check whether the magic's
postfix match the LOV_MAGIC_MAGIC or not: if yes,
then it is quite possible that the clients has
encountered an newer LOV magic. This extra information
can let us handle those cases more gracefully.

Signed-off-by: Fan Yong <fan.yong@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4941
Reviewed-on: http://review.whamcloud.com/10045
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
 .../lustre/lustre/include/lustre/lustre_idl.h      |   20 +++++++++++++++-----
 1 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
index d3a9db9..3444add 100644
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
@@ -1478,11 +1478,21 @@ enum obdo_flags {
 	OBD_FL_LOCAL_MASK   = 0xF0000000,
 };
 
-#define LOV_MAGIC_V1      0x0BD10BD0
-#define LOV_MAGIC	 LOV_MAGIC_V1
-#define LOV_MAGIC_JOIN_V1 0x0BD20BD0
-#define LOV_MAGIC_V3      0x0BD30BD0
-#define LOV_MAGIC_MIGRATE 0x0BD40BD0
+/*
+ * All LOV EA magics should have the same postfix, if some new version
+ * Lustre instroduces new LOV EA magic, then when down-grade to an old
+ * Lustre, even though the old version system does not recognizes such
+ * new magic, it still can distinguish the corrupted cases by checking
+ * the magic's postfix.
+ */
+#define LOV_MAGIC_MAGIC 0x0BD0
+#define LOV_MAGIC_MASK  0xFFFF
+
+#define LOV_MAGIC_V1		(0x0BD10000 | LOV_MAGIC_MAGIC)
+#define LOV_MAGIC_JOIN_V1	(0x0BD20000 | LOV_MAGIC_MAGIC)
+#define LOV_MAGIC_V3		(0x0BD30000 | LOV_MAGIC_MAGIC)
+#define LOV_MAGIC_MIGRATE	(0x0BD40000 | LOV_MAGIC_MAGIC)
+#define LOV_MAGIC		LOV_MAGIC_V1
 
 /*
  * magic for fully defined striping
-- 
1.7.1

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#1464139 — [PATCH 38/80] staging: lustre: move ioctls to lustre_ioctl.h

FromJames Simmons <jsimmons@infradead.org>
Date2016-08-16 22:40 +0200
Subject[PATCH 38/80] staging: lustre: move ioctls to lustre_ioctl.h
Message-ID<s6Tjs-7Qi-55@gated-at.bofh.it>
In reply to#1464054
From: John L. Hammond <john.hammond@intel.com>

Move ioctl definitions and related functions from lustre_dlm.h,
lustre_lib.h, obd.h, to lustre_ioctl.h. Replace the definitions of
retired ioctls with comment.

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4961
Reviewed-on: http://review.whamcloud.com/10139
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Robert Read <robert.read@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
 .../lustre/lustre/include/lustre/lustre_ioctl.h    |  412 ++++++++++++++++++++
 .../lustre/lustre/include/lustre/lustre_user.h     |   21 +-
 drivers/staging/lustre/lustre/include/lustre_dlm.h |   10 -
 drivers/staging/lustre/lustre/include/lustre_lib.h |  284 --------------
 drivers/staging/lustre/lustre/include/obd.h        |   10 -
 drivers/staging/lustre/lustre/llite/dir.c          |    9 +-
 drivers/staging/lustre/lustre/llite/file.c         |    1 +
 drivers/staging/lustre/lustre/llite/llite_lib.c    |    1 +
 drivers/staging/lustre/lustre/lmv/lmv_obd.c        |    1 +
 drivers/staging/lustre/lustre/lov/lov_obd.c        |    1 +
 drivers/staging/lustre/lustre/mdc/mdc_request.c    |    1 +
 drivers/staging/lustre/lustre/obdclass/class_obd.c |    8 +-
 .../lustre/lustre/obdclass/linux/linux-module.c    |    1 +
 .../staging/lustre/lustre/obdclass/obd_config.c    |    1 +
 .../staging/lustre/lustre/obdecho/echo_client.c    |    1 +
 drivers/staging/lustre/lustre/osc/osc_request.c    |    1 +
 16 files changed, 430 insertions(+), 333 deletions(-)
 create mode 100644 drivers/staging/lustre/lustre/include/lustre/lustre_ioctl.h

diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_ioctl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_ioctl.h
new file mode 100644
index 0000000..f3d7c94
--- /dev/null
+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_ioctl.h
@@ -0,0 +1,412 @@
+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.gnu.org/licenses/gpl-2.0.html
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2015, Intel Corporation.
+ */
+#ifndef LUSTRE_IOCTL_H_
+#define LUSTRE_IOCTL_H_
+
+#include <linux/types.h>
+#include "../../../include/linux/libcfs/libcfs.h"
+#include "lustre_idl.h"
+
+#ifdef __KERNEL__
+# include <linux/ioctl.h>
+# include <linux/string.h>
+# include "../obd_support.h"
+#else /* __KERNEL__ */
+# include <malloc.h>
+# include <string.h>
+#include <libcfs/util/ioctl.h>
+#endif /* !__KERNEL__ */
+
+#if !defined(__KERNEL__) && !defined(LUSTRE_UTILS)
+# error This file is for Lustre internal use only.
+#endif
+
+enum md_echo_cmd {
+	ECHO_MD_CREATE		= 1, /* Open/Create file on MDT */
+	ECHO_MD_MKDIR		= 2, /* Mkdir on MDT */
+	ECHO_MD_DESTROY		= 3, /* Unlink file on MDT */
+	ECHO_MD_RMDIR		= 4, /* Rmdir on MDT */
+	ECHO_MD_LOOKUP		= 5, /* Lookup on MDT */
+	ECHO_MD_GETATTR		= 6, /* Getattr on MDT */
+	ECHO_MD_SETATTR		= 7, /* Setattr on MDT */
+	ECHO_MD_ALLOC_FID	= 8, /* Get FIDs from MDT */
+};
+
+#define OBD_DEV_ID 1
+#define OBD_DEV_NAME "obd"
+#define OBD_DEV_PATH "/dev/" OBD_DEV_NAME
+#define OBD_DEV_MAJOR 10
+#define OBD_DEV_MINOR 241
+
+#define OBD_IOCTL_VERSION	0x00010004
+#define OBD_DEV_BY_DEVNAME	0xffffd0de
+#define OBD_MAX_IOCTL_BUFFER	CONFIG_LUSTRE_OBD_MAX_IOCTL_BUFFER
+
+struct obd_ioctl_data {
+	__u32		ioc_len;
+	__u32		ioc_version;
+
+	union {
+		__u64	ioc_cookie;
+		__u64	ioc_u64_1;
+	};
+	union {
+		__u32	ioc_conn1;
+		__u32	ioc_u32_1;
+	};
+	union {
+		__u32	ioc_conn2;
+		__u32	ioc_u32_2;
+	};
+
+	struct obdo	ioc_obdo1;
+	struct obdo	ioc_obdo2;
+
+	__u64		ioc_count;
+	__u64		ioc_offset;
+	__u32		ioc_dev;
+	__u32		ioc_command;
+
+	__u64		ioc_nid;
+	__u32		ioc_nal;
+	__u32		ioc_type;
+
+	/* buffers the kernel will treat as user pointers */
+	__u32		ioc_plen1;
+	char __user    *ioc_pbuf1;
+	__u32		ioc_plen2;
+	char __user    *ioc_pbuf2;
+
+	/* inline buffers for various arguments */
+	__u32		ioc_inllen1;
+	char	       *ioc_inlbuf1;
+	__u32		ioc_inllen2;
+	char	       *ioc_inlbuf2;
+	__u32		ioc_inllen3;
+	char	       *ioc_inlbuf3;
+	__u32		ioc_inllen4;
+	char	       *ioc_inlbuf4;
+
+	char		ioc_bulk[0];
+};
+
+struct obd_ioctl_hdr {
+	__u32		ioc_len;
+	__u32		ioc_version;
+};
+
+static inline __u32 obd_ioctl_packlen(struct obd_ioctl_data *data)
+{
+	__u32 len = cfs_size_round(sizeof(*data));
+
+	len += cfs_size_round(data->ioc_inllen1);
+	len += cfs_size_round(data->ioc_inllen2);
+	len += cfs_size_round(data->ioc_inllen3);
+	len += cfs_size_round(data->ioc_inllen4);
+
+	return len;
+}
+
+static inline int obd_ioctl_is_invalid(struct obd_ioctl_data *data)
+{
+	if (data->ioc_len > (1 << 30)) {
+		CERROR("OBD ioctl: ioc_len larger than 1<<30\n");
+		return 1;
+	}
+
+	if (data->ioc_inllen1 > (1 << 30)) {
+		CERROR("OBD ioctl: ioc_inllen1 larger than 1<<30\n");
+		return 1;
+	}
+
+	if (data->ioc_inllen2 > (1 << 30)) {
+		CERROR("OBD ioctl: ioc_inllen2 larger than 1<<30\n");
+		return 1;
+	}
+
+	if (data->ioc_inllen3 > (1 << 30)) {
+		CERROR("OBD ioctl: ioc_inllen3 larger than 1<<30\n");
+		return 1;
+	}
+
+	if (data->ioc_inllen4 > (1 << 30)) {
+		CERROR("OBD ioctl: ioc_inllen4 larger than 1<<30\n");
+		return 1;
+	}
+
+	if (data->ioc_inlbuf1 && !data->ioc_inllen1) {
+		CERROR("OBD ioctl: inlbuf1 pointer but 0 length\n");
+		return 1;
+	}
+
+	if (data->ioc_inlbuf2 && !data->ioc_inllen2) {
+		CERROR("OBD ioctl: inlbuf2 pointer but 0 length\n");
+		return 1;
+	}
+
+	if (data->ioc_inlbuf3 && !data->ioc_inllen3) {
+		CERROR("OBD ioctl: inlbuf3 pointer but 0 length\n");
+		return 1;
+	}
+
+	if (data->ioc_inlbuf4 && !data->ioc_inllen4) {
+		CERROR("OBD ioctl: inlbuf4 pointer but 0 length\n");
+		return 1;
+	}
+
+	if (data->ioc_pbuf1 && !data->ioc_plen1) {
+		CERROR("OBD ioctl: pbuf1 pointer but 0 length\n");
+		return 1;
+	}
+
+	if (data->ioc_pbuf2 && !data->ioc_plen2) {
+		CERROR("OBD ioctl: pbuf2 pointer but 0 length\n");
+		return 1;
+	}
+
+	if (!data->ioc_pbuf1 && data->ioc_plen1) {
+		CERROR("OBD ioctl: plen1 set but NULL pointer\n");
+		return 1;
+	}
+
+	if (!data->ioc_pbuf2 && data->ioc_plen2) {
+		CERROR("OBD ioctl: plen2 set but NULL pointer\n");
+		return 1;
+	}
+
+	if (obd_ioctl_packlen(data) > data->ioc_len) {
+		CERROR("OBD ioctl: packlen exceeds ioc_len (%d > %d)\n",
+		       obd_ioctl_packlen(data), data->ioc_len);
+		return 1;
+	}
+
+	return 0;
+}
+
+#ifdef __KERNEL__
+
+int obd_ioctl_getdata(char **buf, int *len, void __user *arg);
+int obd_ioctl_popdata(void __user *arg, void *data, int len);
+
+static inline void obd_ioctl_freedata(char *buf, size_t len)
+{
+	kvfree(buf);
+}
+
+#else /* __KERNEL__ */
+
+static inline int obd_ioctl_pack(struct obd_ioctl_data *data, char **pbuf,
+				 int max_len)
+{
+	char *ptr;
+	struct obd_ioctl_data *overlay;
+
+	data->ioc_len = obd_ioctl_packlen(data);
+	data->ioc_version = OBD_IOCTL_VERSION;
+
+	if (*pbuf && data->ioc_len > max_len) {
+		fprintf(stderr, "pbuf = %p, ioc_len = %u, max_len = %d\n",
+			*pbuf, data->ioc_len, max_len);
+		return -EINVAL;
+	}
+
+	if (!*pbuf)
+		*pbuf = malloc(data->ioc_len);
+
+	if (!*pbuf)
+		return -ENOMEM;
+
+	overlay = (struct obd_ioctl_data *)*pbuf;
+	memcpy(*pbuf, data, sizeof(*data));
+
+	ptr = overlay->ioc_bulk;
+	if (data->ioc_inlbuf1)
+		LOGL(data->ioc_inlbuf1, data->ioc_inllen1, ptr);
+
+	if (data->ioc_inlbuf2)
+		LOGL(data->ioc_inlbuf2, data->ioc_inllen2, ptr);
+
+	if (data->ioc_inlbuf3)
+		LOGL(data->ioc_inlbuf3, data->ioc_inllen3, ptr);
+
+	if (data->ioc_inlbuf4)
+		LOGL(data->ioc_inlbuf4, data->ioc_inllen4, ptr);
+
+	if (obd_ioctl_is_invalid(overlay)) {
+		fprintf(stderr, "invalid ioctl data: ioc_len = %u, max_len = %d\n",
+			data->ioc_len, max_len);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static inline int
+obd_ioctl_unpack(struct obd_ioctl_data *data, char *pbuf, int max_len)
+{
+	char *ptr;
+	struct obd_ioctl_data *overlay;
+
+	if (!pbuf)
+		return 1;
+
+	overlay = (struct obd_ioctl_data *)pbuf;
+
+	/* Preserve the caller's buffer pointers */
+	overlay->ioc_inlbuf1 = data->ioc_inlbuf1;
+	overlay->ioc_inlbuf2 = data->ioc_inlbuf2;
+	overlay->ioc_inlbuf3 = data->ioc_inlbuf3;
+	overlay->ioc_inlbuf4 = data->ioc_inlbuf4;
+
+	memcpy(data, pbuf, sizeof(*data));
+
+	ptr = overlay->ioc_bulk;
+	if (data->ioc_inlbuf1)
+		LOGU(data->ioc_inlbuf1, data->ioc_inllen1, ptr);
+
+	if (data->ioc_inlbuf2)
+		LOGU(data->ioc_inlbuf2, data->ioc_inllen2, ptr);
+
+	if (data->ioc_inlbuf3)
+		LOGU(data->ioc_inlbuf3, data->ioc_inllen3, ptr);
+
+	if (data->ioc_inlbuf4)
+		LOGU(data->ioc_inlbuf4, data->ioc_inllen4, ptr);
+
+	return 0;
+}
+
+#endif /* !__KERNEL__ */
+
+/*
+ * OBD_IOC_DATA_TYPE is only for compatibility reasons with older
+ * Linux Lustre user tools. New ioctls should NOT use this macro as
+ * the ioctl "size". Instead the ioctl should get a "size" argument
+ * which is the actual data type used by the ioctl, to ensure the
+ * ioctl interface is versioned correctly.
+ */
+#define OBD_IOC_DATA_TYPE	long
+
+/*	IOC_LDLM_TEST		_IOWR('f', 40, long) */
+/*	IOC_LDLM_DUMP		_IOWR('f', 41, long) */
+/*	IOC_LDLM_REGRESS_START	_IOWR('f', 42, long) */
+/*	IOC_LDLM_REGRESS_STOP	_IOWR('f', 43, long) */
+
+#define OBD_IOC_CREATE		_IOWR('f', 101, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_DESTROY		_IOW('f', 104, OBD_IOC_DATA_TYPE)
+/*	OBD_IOC_PREALLOCATE	_IOWR('f', 105, OBD_IOC_DATA_TYPE) */
+
+#define OBD_IOC_SETATTR		_IOW('f', 107, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_GETATTR		_IOWR('f', 108, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_READ		_IOWR('f', 109, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_WRITE		_IOWR('f', 110, OBD_IOC_DATA_TYPE)
+
+#define OBD_IOC_STATFS		_IOWR('f', 113, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_SYNC		_IOW('f', 114, OBD_IOC_DATA_TYPE)
+/*	OBD_IOC_READ2		_IOWR('f', 115, OBD_IOC_DATA_TYPE) */
+/*	OBD_IOC_FORMAT		_IOWR('f', 116, OBD_IOC_DATA_TYPE) */
+/*	OBD_IOC_PARTITION	_IOWR('f', 117, OBD_IOC_DATA_TYPE) */
+/*	OBD_IOC_COPY		_IOWR('f', 120, OBD_IOC_DATA_TYPE) */
+/*	OBD_IOC_MIGR		_IOWR('f', 121, OBD_IOC_DATA_TYPE) */
+/*	OBD_IOC_PUNCH		_IOWR('f', 122, OBD_IOC_DATA_TYPE) */
+
+/*	OBD_IOC_MODULE_DEBUG	_IOWR('f', 124, OBD_IOC_DATA_TYPE) */
+#define OBD_IOC_BRW_READ	_IOWR('f', 125, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_BRW_WRITE	_IOWR('f', 126, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_NAME2DEV	_IOWR('f', 127, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_UUID2DEV	_IOWR('f', 130, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_GETNAME		_IOWR('f', 131, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_GETMDNAME	_IOR('f', 131, char[MAX_OBD_NAME])
+#define OBD_IOC_GETDTNAME	OBD_IOC_GETNAME
+#define OBD_IOC_LOV_GET_CONFIG	_IOWR('f', 132, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_CLIENT_RECOVER	_IOW('f', 133, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_PING_TARGET	_IOW('f', 136, OBD_IOC_DATA_TYPE)
+
+/*	OBD_IOC_DEC_FS_USE_COUNT _IO('f', 139) */
+#define OBD_IOC_NO_TRANSNO	_IOW('f', 140, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_SET_READONLY	_IOW('f', 141, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_ABORT_RECOVERY	_IOR('f', 142, OBD_IOC_DATA_TYPE)
+/*	OBD_IOC_ROOT_SQUASH	_IOWR('f', 143, OBD_IOC_DATA_TYPE) */
+#define OBD_GET_VERSION		_IOWR('f', 144, OBD_IOC_DATA_TYPE)
+/*	OBD_IOC_GSS_SUPPORT	_IOWR('f', 145, OBD_IOC_DATA_TYPE) */
+/*	OBD_IOC_CLOSE_UUID	_IOWR('f', 147, OBD_IOC_DATA_TYPE) */
+#define OBD_IOC_CHANGELOG_SEND	_IOW('f', 148, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_GETDEVICE	_IOWR('f', 149, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_FID2PATH	_IOWR('f', 150, OBD_IOC_DATA_TYPE)
+/*	lustre/lustre_user.h	151-153 */
+/*	OBD_IOC_LOV_SETSTRIPE	154 LL_IOC_LOV_SETSTRIPE */
+/*	OBD_IOC_LOV_GETSTRIPE	155 LL_IOC_LOV_GETSTRIPE */
+/*	OBD_IOC_LOV_SETEA	156 LL_IOC_LOV_SETEA */
+/*	lustre/lustre_user.h	157-159 */
+#define	OBD_IOC_QUOTACHECK	_IOW('f', 160, int)
+#define	OBD_IOC_POLL_QUOTACHECK	_IOR('f', 161, struct if_quotacheck *)
+#define OBD_IOC_QUOTACTL	_IOWR('f', 162, struct if_quotactl)
+/*	lustre/lustre_user.h	163-176 */
+#define OBD_IOC_CHANGELOG_REG	_IOW('f', 177, struct obd_ioctl_data)
+#define OBD_IOC_CHANGELOG_DEREG	_IOW('f', 178, struct obd_ioctl_data)
+#define OBD_IOC_CHANGELOG_CLEAR	_IOW('f', 179, struct obd_ioctl_data)
+/*	OBD_IOC_RECORD		_IOWR('f', 180, OBD_IOC_DATA_TYPE) */
+/*	OBD_IOC_ENDRECORD	_IOWR('f', 181, OBD_IOC_DATA_TYPE) */
+/*	OBD_IOC_PARSE		_IOWR('f', 182, OBD_IOC_DATA_TYPE) */
+/*	OBD_IOC_DORECORD	_IOWR('f', 183, OBD_IOC_DATA_TYPE) */
+#define OBD_IOC_PROCESS_CFG	_IOWR('f', 184, OBD_IOC_DATA_TYPE)
+/*	OBD_IOC_DUMP_LOG	_IOWR('f', 185, OBD_IOC_DATA_TYPE) */
+/*	OBD_IOC_CLEAR_LOG	_IOWR('f', 186, OBD_IOC_DATA_TYPE) */
+#define OBD_IOC_PARAM		_IOW('f', 187, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_POOL		_IOWR('f', 188, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_REPLACE_NIDS	_IOWR('f', 189, OBD_IOC_DATA_TYPE)
+
+#define OBD_IOC_CATLOGLIST	_IOWR('f', 190, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_LLOG_INFO	_IOWR('f', 191, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_LLOG_PRINT	_IOWR('f', 192, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_LLOG_CANCEL	_IOWR('f', 193, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_LLOG_REMOVE	_IOWR('f', 194, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_LLOG_CHECK	_IOWR('f', 195, OBD_IOC_DATA_TYPE)
+/*	OBD_IOC_LLOG_CATINFO	_IOWR('f', 196, OBD_IOC_DATA_TYPE) */
+#define OBD_IOC_NODEMAP		_IOWR('f', 197, OBD_IOC_DATA_TYPE)
+
+/*	ECHO_IOC_GET_STRIPE	_IOWR('f', 200, OBD_IOC_DATA_TYPE) */
+/*	ECHO_IOC_SET_STRIPE	_IOWR('f', 201, OBD_IOC_DATA_TYPE) */
+/*	ECHO_IOC_ENQUEUE	_IOWR('f', 202, OBD_IOC_DATA_TYPE) */
+/*	ECHO_IOC_CANCEL		_IOWR('f', 203, OBD_IOC_DATA_TYPE) */
+
+#define OBD_IOC_GET_OBJ_VERSION	_IOR('f', 210, OBD_IOC_DATA_TYPE)
+
+/*	lustre/lustre_user.h	212-217 */
+#define OBD_IOC_GET_MNTOPT	_IOW('f', 220, mntopt_t)
+#define OBD_IOC_ECHO_MD		_IOR('f', 221, struct obd_ioctl_data)
+#define OBD_IOC_ECHO_ALLOC_SEQ	_IOWR('f', 222, struct obd_ioctl_data)
+#define OBD_IOC_START_LFSCK	_IOWR('f', 230, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_STOP_LFSCK	_IOW('f', 231, OBD_IOC_DATA_TYPE)
+#define OBD_IOC_QUERY_LFSCK	_IOR('f', 232, struct obd_ioctl_data)
+/*	lustre/lustre_user.h	240-249 */
+/*	LIBCFS_IOC_DEBUG_MASK	250 */
+
+#define IOC_OSC_SET_ACTIVE	_IOWR('h', 21, void *)
+
+#endif /* LUSTRE_IOCTL_H_ */
diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
index 4746320..75a78a3 100644
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
@@ -188,26 +188,20 @@ struct ost_id {
  * *STRIPE* - set/get lov_user_md
  * *INFO    - set/get lov_user_mds_data
  */
-/* see <lustre_lib.h> for ioctl numberss 101-150 */
+/*	lustre_ioctl.h			101-150 */
 #define LL_IOC_GETFLAGS		 _IOR('f', 151, long)
 #define LL_IOC_SETFLAGS		 _IOW('f', 152, long)
 #define LL_IOC_CLRFLAGS		 _IOW('f', 153, long)
-/* LL_IOC_LOV_SETSTRIPE: See also OBD_IOC_LOV_SETSTRIPE */
 #define LL_IOC_LOV_SETSTRIPE	    _IOW('f', 154, long)
-/* LL_IOC_LOV_GETSTRIPE: See also OBD_IOC_LOV_GETSTRIPE */
 #define LL_IOC_LOV_GETSTRIPE	    _IOW('f', 155, long)
-/* LL_IOC_LOV_SETEA: See also OBD_IOC_LOV_SETEA */
 #define LL_IOC_LOV_SETEA		_IOW('f', 156, long)
 #define LL_IOC_RECREATE_OBJ	     _IOW('f', 157, long)
 #define LL_IOC_RECREATE_FID	     _IOW('f', 157, struct lu_fid)
 #define LL_IOC_GROUP_LOCK	       _IOW('f', 158, long)
 #define LL_IOC_GROUP_UNLOCK	     _IOW('f', 159, long)
-/* LL_IOC_QUOTACHECK: See also OBD_IOC_QUOTACHECK */
-#define LL_IOC_QUOTACHECK	       _IOW('f', 160, int)
-/* LL_IOC_POLL_QUOTACHECK: See also OBD_IOC_POLL_QUOTACHECK */
-#define LL_IOC_POLL_QUOTACHECK	  _IOR('f', 161, struct if_quotacheck *)
-/* LL_IOC_QUOTACTL: See also OBD_IOC_QUOTACTL */
-#define LL_IOC_QUOTACTL		 _IOWR('f', 162, struct if_quotactl)
+/* #define LL_IOC_QUOTACHECK		160 OBD_IOC_QUOTACHECK */
+/* #define LL_IOC_POLL_QUOTACHECK	161 OBD_IOC_POLL_QUOTACHECK */
+/* #define LL_IOC_QUOTACTL		162 OBD_IOC_QUOTACTL */
 #define IOC_OBD_STATFS		  _IOWR('f', 164, struct obd_statfs *)
 #define IOC_LOV_GETINFO		 _IOWR('f', 165, struct lov_user_mds_data *)
 #define LL_IOC_FLUSHCTX		 _IOW('f', 166, long)
@@ -221,8 +215,7 @@ struct ost_id {
 #define LL_IOC_GET_CONNECT_FLAGS	_IOWR('f', 174, __u64 *)
 #define LL_IOC_GET_MDTIDX	       _IOR('f', 175, int)
 
-/* see <lustre_lib.h> for ioctl numbers 177-210 */
-
+/*	lustre_ioctl.h			177-210 */
 #define LL_IOC_HSM_STATE_GET		_IOR('f', 211, struct hsm_user_state)
 #define LL_IOC_HSM_STATE_SET		_IOW('f', 212, struct hsm_state_set)
 #define LL_IOC_HSM_CT_START		_IOW('f', 213, struct lustre_kernelcomm)
@@ -255,10 +248,6 @@ struct ost_id {
 #define IOC_MDC_GETFILEINFO     _IOWR(IOC_MDC_TYPE, 22, struct lov_user_mds_data *)
 #define LL_IOC_MDC_GETINFO      _IOWR(IOC_MDC_TYPE, 23, struct lov_user_mds_data *)
 
-/* Keep these for backward compartability. */
-#define LL_IOC_OBD_STATFS       IOC_OBD_STATFS
-#define IOC_MDC_GETSTRIPE       IOC_MDC_GETFILESTRIPE
-
 #define MAX_OBD_NAME 128 /* If this changes, a NEW ioctl must be added */
 
 /* Define O_LOV_DELAY_CREATE to be a mask that is not useful for regular
diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm.h b/drivers/staging/lustre/lustre/include/lustre_dlm.h
index f7805cc..1ec4231 100644
--- a/drivers/staging/lustre/lustre/include/lustre_dlm.h
+++ b/drivers/staging/lustre/lustre/include/lustre_dlm.h
@@ -1282,16 +1282,6 @@ int ldlm_cli_cancel_list(struct list_head *head, int count,
 int intent_disposition(struct ldlm_reply *rep, int flag);
 void intent_set_disposition(struct ldlm_reply *rep, int flag);
 
-/* ioctls for trying requests */
-#define IOC_LDLM_TYPE		   'f'
-#define IOC_LDLM_MIN_NR		 40
-
-#define IOC_LDLM_TEST		   _IOWR('f', 40, long)
-#define IOC_LDLM_DUMP		   _IOWR('f', 41, long)
-#define IOC_LDLM_REGRESS_START	  _IOWR('f', 42, long)
-#define IOC_LDLM_REGRESS_STOP	   _IOWR('f', 43, long)
-#define IOC_LDLM_MAX_NR		 43
-
 /**
  * "Modes" of acquiring lock_res, necessary to tell lockdep that taking more
  * than one lock_res is dead-lock safe.
diff --git a/drivers/staging/lustre/lustre/include/lustre_lib.h b/drivers/staging/lustre/lustre/include/lustre_lib.h
index def0193..adb8c47 100644
--- a/drivers/staging/lustre/lustre/include/lustre_lib.h
+++ b/drivers/staging/lustre/lustre/include/lustre_lib.h
@@ -75,7 +75,6 @@ int do_set_info_async(struct obd_import *imp,
 		      struct ptlrpc_request_set *set);
 
 #define OBD_RECOVERY_MAX_TIME (obd_timeout * 18) /* b13079 */
-#define OBD_MAX_IOCTL_BUFFER CONFIG_LUSTRE_OBD_MAX_IOCTL_BUFFER
 
 void target_send_reply(struct ptlrpc_request *req, int rc, int fail_id);
 
@@ -99,289 +98,6 @@ struct obd_client_handle {
 /* statfs_pack.c */
 void statfs_unpack(struct kstatfs *sfs, struct obd_statfs *osfs);
 
-/*
- * For md echo client
- */
-enum md_echo_cmd {
-	ECHO_MD_CREATE       = 1, /* Open/Create file on MDT */
-	ECHO_MD_MKDIR	= 2, /* Mkdir on MDT */
-	ECHO_MD_DESTROY      = 3, /* Unlink file on MDT */
-	ECHO_MD_RMDIR	= 4, /* Rmdir on MDT */
-	ECHO_MD_LOOKUP       = 5, /* Lookup on MDT */
-	ECHO_MD_GETATTR      = 6, /* Getattr on MDT */
-	ECHO_MD_SETATTR      = 7, /* Setattr on MDT */
-	ECHO_MD_ALLOC_FID    = 8, /* Get FIDs from MDT */
-};
-
-/*
- *   OBD IOCTLS
- */
-#define OBD_IOCTL_VERSION 0x00010004
-
-struct obd_ioctl_data {
-	__u32 ioc_len;
-	__u32 ioc_version;
-
-	union {
-		__u64 ioc_cookie;
-		__u64 ioc_u64_1;
-	};
-	union {
-		__u32 ioc_conn1;
-		__u32 ioc_u32_1;
-	};
-	union {
-		__u32 ioc_conn2;
-		__u32 ioc_u32_2;
-	};
-
-	struct obdo ioc_obdo1;
-	struct obdo ioc_obdo2;
-
-	u64	 ioc_count;
-	u64	 ioc_offset;
-	__u32    ioc_dev;
-	__u32    ioc_command;
-
-	__u64 ioc_nid;
-	__u32 ioc_nal;
-	__u32 ioc_type;
-
-	/* buffers the kernel will treat as user pointers */
-	__u32  ioc_plen1;
-	void __user *ioc_pbuf1;
-	__u32  ioc_plen2;
-	void __user *ioc_pbuf2;
-
-	/* inline buffers for various arguments */
-	__u32  ioc_inllen1;
-	char  *ioc_inlbuf1;
-	__u32  ioc_inllen2;
-	char  *ioc_inlbuf2;
-	__u32  ioc_inllen3;
-	char  *ioc_inlbuf3;
-	__u32  ioc_inllen4;
-	char  *ioc_inlbuf4;
-
-	char    ioc_bulk[0];
-};
-
-struct obd_ioctl_hdr {
-	__u32 ioc_len;
-	__u32 ioc_version;
-};
-
-static inline int obd_ioctl_packlen(struct obd_ioctl_data *data)
-{
-	int len = cfs_size_round(sizeof(struct obd_ioctl_data));
-
-	len += cfs_size_round(data->ioc_inllen1);
-	len += cfs_size_round(data->ioc_inllen2);
-	len += cfs_size_round(data->ioc_inllen3);
-	len += cfs_size_round(data->ioc_inllen4);
-	return len;
-}
-
-static inline int obd_ioctl_is_invalid(struct obd_ioctl_data *data)
-{
-	if (data->ioc_len > OBD_MAX_IOCTL_BUFFER) {
-		CERROR("OBD ioctl: ioc_len larger than %d\n",
-		       OBD_MAX_IOCTL_BUFFER);
-		return 1;
-	}
-	if (data->ioc_inllen1 > OBD_MAX_IOCTL_BUFFER) {
-		CERROR("OBD ioctl: ioc_inllen1 larger than ioc_len\n");
-		return 1;
-	}
-	if (data->ioc_inllen2 > OBD_MAX_IOCTL_BUFFER) {
-		CERROR("OBD ioctl: ioc_inllen2 larger than ioc_len\n");
-		return 1;
-	}
-	if (data->ioc_inllen3 > OBD_MAX_IOCTL_BUFFER) {
-		CERROR("OBD ioctl: ioc_inllen3 larger than ioc_len\n");
-		return 1;
-	}
-	if (data->ioc_inllen4 > OBD_MAX_IOCTL_BUFFER) {
-		CERROR("OBD ioctl: ioc_inllen4 larger than ioc_len\n");
-		return 1;
-	}
-	if (data->ioc_inlbuf1 && !data->ioc_inllen1) {
-		CERROR("OBD ioctl: inlbuf1 pointer but 0 length\n");
-		return 1;
-	}
-	if (data->ioc_inlbuf2 && !data->ioc_inllen2) {
-		CERROR("OBD ioctl: inlbuf2 pointer but 0 length\n");
-		return 1;
-	}
-	if (data->ioc_inlbuf3 && !data->ioc_inllen3) {
-		CERROR("OBD ioctl: inlbuf3 pointer but 0 length\n");
-		return 1;
-	}
-	if (data->ioc_inlbuf4 && !data->ioc_inllen4) {
-		CERROR("OBD ioctl: inlbuf4 pointer but 0 length\n");
-		return 1;
-	}
-	if (data->ioc_pbuf1 && !data->ioc_plen1) {
-		CERROR("OBD ioctl: pbuf1 pointer but 0 length\n");
-		return 1;
-	}
-	if (data->ioc_pbuf2 && !data->ioc_plen2) {
-		CERROR("OBD ioctl: pbuf2 pointer but 0 length\n");
-		return 1;
-	}
-	if (data->ioc_plen1 && !data->ioc_pbuf1) {
-		CERROR("OBD ioctl: plen1 set but NULL pointer\n");
-		return 1;
-	}
-	if (data->ioc_plen2 && !data->ioc_pbuf2) {
-		CERROR("OBD ioctl: plen2 set but NULL pointer\n");
-		return 1;
-	}
-	if (obd_ioctl_packlen(data) > data->ioc_len) {
-		CERROR("OBD ioctl: packlen exceeds ioc_len (%d > %d)\n",
-		       obd_ioctl_packlen(data), data->ioc_len);
-		return 1;
-	}
-	return 0;
-}
-
-#include "obd_support.h"
-
-/* function defined in lustre/obdclass/<platform>/<platform>-module.c */
-int obd_ioctl_getdata(char **buf, int *len, void __user *arg);
-int obd_ioctl_popdata(void __user *arg, void *data, int len);
-
-static inline void obd_ioctl_freedata(char *buf, int len)
-{
-	kvfree(buf);
-	return;
-}
-
-/*
- * BSD ioctl description:
- * #define IOC_V1       _IOR(g, n1, long)
- * #define IOC_V2       _IOW(g, n2, long)
- *
- * ioctl(f, IOC_V1, arg);
- * arg will be treated as a long value,
- *
- * ioctl(f, IOC_V2, arg)
- * arg will be treated as a pointer, bsd will call
- * copyin(buf, arg, sizeof(long))
- *
- * To make BSD ioctl handles argument correctly and simplely,
- * we change _IOR to _IOWR so BSD will copyin obd_ioctl_data
- * for us. Does this change affect Linux?  (XXX Liang)
- */
-#define OBD_IOC_DATA_TYPE long
-
-#define OBD_IOC_CREATE		 _IOWR('f', 101, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_DESTROY		_IOW('f', 104, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_PREALLOCATE	    _IOWR('f', 105, OBD_IOC_DATA_TYPE)
-
-#define OBD_IOC_SETATTR		_IOW('f', 107, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_GETATTR		_IOWR ('f', 108, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_READ		   _IOWR('f', 109, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_WRITE		  _IOWR('f', 110, OBD_IOC_DATA_TYPE)
-
-#define OBD_IOC_STATFS		 _IOWR('f', 113, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_SYNC		   _IOW('f', 114, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_READ2		  _IOWR('f', 115, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_FORMAT		 _IOWR('f', 116, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_PARTITION	      _IOWR('f', 117, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_COPY		   _IOWR('f', 120, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_MIGR		   _IOWR('f', 121, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_PUNCH		  _IOWR('f', 122, OBD_IOC_DATA_TYPE)
-
-#define OBD_IOC_MODULE_DEBUG	   _IOWR('f', 124, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_BRW_READ	       _IOWR('f', 125, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_BRW_WRITE	      _IOWR('f', 126, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_NAME2DEV	       _IOWR('f', 127, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_UUID2DEV	       _IOWR('f', 130, OBD_IOC_DATA_TYPE)
-
-#define OBD_IOC_GETNAME		_IOWR('f', 131, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_GETMDNAME	      _IOR('f', 131, char[MAX_OBD_NAME])
-#define OBD_IOC_GETDTNAME	       OBD_IOC_GETNAME
-
-#define OBD_IOC_LOV_GET_CONFIG	 _IOWR('f', 132, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_CLIENT_RECOVER	 _IOW('f', 133, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_PING_TARGET	    _IOW('f', 136, OBD_IOC_DATA_TYPE)
-
-#define OBD_IOC_DEC_FS_USE_COUNT       _IO  ('f', 139)
-#define OBD_IOC_NO_TRANSNO	     _IOW('f', 140, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_SET_READONLY	   _IOW('f', 141, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_ABORT_RECOVERY	 _IOR('f', 142, OBD_IOC_DATA_TYPE)
-
-#define OBD_IOC_ROOT_SQUASH	    _IOWR('f', 143, OBD_IOC_DATA_TYPE)
-
-#define OBD_GET_VERSION		_IOWR ('f', 144, OBD_IOC_DATA_TYPE)
-
-#define OBD_IOC_GSS_SUPPORT	    _IOWR('f', 145, OBD_IOC_DATA_TYPE)
-
-#define OBD_IOC_CLOSE_UUID	     _IOWR ('f', 147, OBD_IOC_DATA_TYPE)
-
-#define OBD_IOC_CHANGELOG_SEND	 _IOW('f', 148, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_GETDEVICE	      _IOWR ('f', 149, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_FID2PATH	       _IOWR ('f', 150, OBD_IOC_DATA_TYPE)
-/* see also <lustre/lustre_user.h> for ioctls 151-153 */
-/* OBD_IOC_LOV_SETSTRIPE: See also LL_IOC_LOV_SETSTRIPE */
-#define OBD_IOC_LOV_SETSTRIPE	  _IOW('f', 154, OBD_IOC_DATA_TYPE)
-/* OBD_IOC_LOV_GETSTRIPE: See also LL_IOC_LOV_GETSTRIPE */
-#define OBD_IOC_LOV_GETSTRIPE	  _IOW('f', 155, OBD_IOC_DATA_TYPE)
-/* OBD_IOC_LOV_SETEA: See also LL_IOC_LOV_SETEA */
-#define OBD_IOC_LOV_SETEA	      _IOW('f', 156, OBD_IOC_DATA_TYPE)
-/* see <lustre/lustre_user.h> for ioctls 157-159 */
-/* OBD_IOC_QUOTACHECK: See also LL_IOC_QUOTACHECK */
-#define OBD_IOC_QUOTACHECK	     _IOW('f', 160, int)
-/* OBD_IOC_POLL_QUOTACHECK: See also LL_IOC_POLL_QUOTACHECK */
-#define OBD_IOC_POLL_QUOTACHECK	_IOR('f', 161, struct if_quotacheck *)
-/* OBD_IOC_QUOTACTL: See also LL_IOC_QUOTACTL */
-#define OBD_IOC_QUOTACTL	       _IOWR('f', 162, struct if_quotactl)
-/* see  also <lustre/lustre_user.h> for ioctls 163-176 */
-#define OBD_IOC_CHANGELOG_REG	  _IOW('f', 177, struct obd_ioctl_data)
-#define OBD_IOC_CHANGELOG_DEREG	_IOW('f', 178, struct obd_ioctl_data)
-#define OBD_IOC_CHANGELOG_CLEAR	_IOW('f', 179, struct obd_ioctl_data)
-#define OBD_IOC_RECORD		 _IOWR('f', 180, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_ENDRECORD	      _IOWR('f', 181, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_PARSE		  _IOWR('f', 182, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_DORECORD	       _IOWR('f', 183, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_PROCESS_CFG	    _IOWR('f', 184, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_DUMP_LOG	       _IOWR('f', 185, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_CLEAR_LOG	      _IOWR('f', 186, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_PARAM		  _IOW('f', 187, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_POOL		   _IOWR('f', 188, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_REPLACE_NIDS	   _IOWR('f', 189, OBD_IOC_DATA_TYPE)
-
-#define OBD_IOC_CATLOGLIST	     _IOWR('f', 190, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_LLOG_INFO	      _IOWR('f', 191, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_LLOG_PRINT	     _IOWR('f', 192, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_LLOG_CANCEL	    _IOWR('f', 193, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_LLOG_REMOVE	    _IOWR('f', 194, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_LLOG_CHECK	     _IOWR('f', 195, OBD_IOC_DATA_TYPE)
-/* OBD_IOC_LLOG_CATINFO is deprecated */
-#define OBD_IOC_LLOG_CATINFO	   _IOWR('f', 196, OBD_IOC_DATA_TYPE)
-
-/*	#define ECHO_IOC_GET_STRIPE    _IOWR('f', 200, OBD_IOC_DATA_TYPE) */
-/*	#define ECHO_IOC_SET_STRIPE    _IOWR('f', 201, OBD_IOC_DATA_TYPE) */
-/*	#define ECHO_IOC_ENQUEUE       _IOWR('f', 202, OBD_IOC_DATA_TYPE) */
-/*	#define ECHO_IOC_CANCEL        _IOWR('f', 203, OBD_IOC_DATA_TYPE) */
-
-#define OBD_IOC_GET_OBJ_VERSION	_IOR('f', 210, OBD_IOC_DATA_TYPE)
-
-/* <lustre/lustre_user.h> defines ioctl number 218-219 */
-#define OBD_IOC_GET_MNTOPT	     _IOW('f', 220, mntopt_t)
-
-#define OBD_IOC_ECHO_MD		_IOR('f', 221, struct obd_ioctl_data)
-#define OBD_IOC_ECHO_ALLOC_SEQ	 _IOWR('f', 222, struct obd_ioctl_data)
-
-#define OBD_IOC_START_LFSCK	       _IOWR('f', 230, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_STOP_LFSCK	       _IOW('f', 231, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_PAUSE_LFSCK	       _IOW('f', 232, OBD_IOC_DATA_TYPE)
-
-/* XXX _IOWR('f', 250, long) has been defined in
- * libcfs/include/libcfs/libcfs_private.h for debug, don't use it
- */
-
 /* Until such time as we get_info the per-stripe maximum from the OST,
  * we define this to be 2T - 4k, which is the ext3 maxbytes.
  */
diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h
index cacd472..0dae273 100644
--- a/drivers/staging/lustre/lustre/include/obd.h
+++ b/drivers/staging/lustre/lustre/include/obd.h
@@ -35,15 +35,6 @@
 
 #include <linux/spinlock.h>
 
-#define IOC_OSC_TYPE	 'h'
-#define IOC_OSC_MIN_NR       20
-#define IOC_OSC_SET_ACTIVE   _IOWR(IOC_OSC_TYPE, 21, struct obd_device *)
-#define IOC_OSC_MAX_NR       50
-
-#define IOC_MDC_TYPE	 'i'
-#define IOC_MDC_MIN_NR       20
-#define IOC_MDC_MAX_NR       50
-
 #include "lustre/lustre_idl.h"
 #include "lustre_lib.h"
 #include "lu_ref.h"
@@ -623,7 +614,6 @@ struct obd_llog_group {
 
 /* corresponds to one of the obd's */
 #define OBD_DEVICE_MAGIC	0XAB5CD6EF
-#define OBD_DEV_BY_DEVNAME      0xffffd0de
 
 struct lvfs_run_ctxt {
 	struct dt_device *dt;
diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c
index 84bec03..257c9a4 100644
--- a/drivers/staging/lustre/lustre/llite/dir.c
+++ b/drivers/staging/lustre/lustre/llite/dir.c
@@ -46,8 +46,8 @@
 
 #include "../include/obd_support.h"
 #include "../include/obd_class.h"
+#include "../include/lustre/lustre_ioctl.h"
 #include "../include/lustre_lib.h"
-#include "../include/lustre/lustre_idl.h"
 #include "../include/lustre_lite.h"
 #include "../include/lustre_dlm.h"
 #include "../include/lustre_fid.h"
@@ -1543,7 +1543,7 @@ finish_req:
 
 	case LL_IOC_LOV_SWAP_LAYOUTS:
 		return -EPERM;
-	case LL_IOC_OBD_STATFS:
+	case IOC_OBD_STATFS:
 		return ll_obd_statfs(inode, (void __user *)arg);
 	case LL_IOC_LOV_GETSTRIPE:
 	case LL_IOC_MDC_GETINFO:
@@ -1708,9 +1708,6 @@ free_lmm:
 		kvfree(lmm);
 		return rc;
 	}
-	case OBD_IOC_LLOG_CATINFO: {
-		return -EOPNOTSUPP;
-	}
 	case OBD_IOC_QUOTACHECK: {
 		struct obd_quotactl *oqctl;
 		int error = 0;
@@ -1768,7 +1765,7 @@ out_poll:
 		kfree(check);
 		return rc;
 	}
-	case LL_IOC_QUOTACTL: {
+	case OBD_IOC_QUOTACTL: {
 		struct if_quotactl *qctl;
 
 		qctl = kzalloc(sizeof(*qctl), GFP_NOFS);
diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c
index 89e93dc..519db53 100644
--- a/drivers/staging/lustre/lustre/llite/file.c
+++ b/drivers/staging/lustre/lustre/llite/file.c
@@ -44,6 +44,7 @@
 #include <linux/mount.h>
 #include "llite_internal.h"
 #include "../include/lustre/ll_fiemap.h"
+#include "../include/lustre/lustre_ioctl.h"
 
 #include "../include/cl_object.h"
 
diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c
index e320400..111264e 100644
--- a/drivers/staging/lustre/lustre/llite/llite_lib.c
+++ b/drivers/staging/lustre/lustre/llite/llite_lib.c
@@ -41,6 +41,7 @@
 #include <linux/types.h>
 #include <linux/mm.h>
 
+#include "../include/lustre/lustre_ioctl.h"
 #include "../include/lustre_lite.h"
 #include "../include/lustre_ha.h"
 #include "../include/lustre_dlm.h"
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
index d07fd17..e516a84 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
@@ -51,6 +51,7 @@
 #include "../include/cl_object.h"
 #include "../include/lustre_lite.h"
 #include "../include/lustre_fid.h"
+#include "../include/lustre/lustre_ioctl.h"
 #include "../include/lustre_kernelcomm.h"
 #include "lmv_internal.h"
 
diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c
index 9b92d55..d904f44 100644
--- a/drivers/staging/lustre/lustre/lov/lov_obd.c
+++ b/drivers/staging/lustre/lustre/lov/lov_obd.c
@@ -41,6 +41,7 @@
 #include "../../include/linux/libcfs/libcfs.h"
 
 #include "../include/obd_support.h"
+#include "../include/lustre/lustre_ioctl.h"
 #include "../include/lustre_lib.h"
 #include "../include/lustre_net.h"
 #include "../include/lustre/lustre_idl.h"
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_request.c b/drivers/staging/lustre/lustre/mdc/mdc_request.c
index 558f33b..394ef3c 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_request.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_request.c
@@ -39,6 +39,7 @@
 # include <linux/utsname.h>
 
 #include "../include/lustre_acl.h"
+#include "../include/lustre/lustre_ioctl.h"
 #include "../include/obd_class.h"
 #include "../include/lustre_lmv.h"
 #include "../include/lustre_fid.h"
diff --git a/drivers/staging/lustre/lustre/obdclass/class_obd.c b/drivers/staging/lustre/lustre/obdclass/class_obd.c
index d9d2a19..6edf53e 100644
--- a/drivers/staging/lustre/lustre/obdclass/class_obd.c
+++ b/drivers/staging/lustre/lustre/obdclass/class_obd.c
@@ -40,6 +40,7 @@
 #include "../include/lprocfs_status.h"
 #include <linux/list.h>
 #include "../include/cl_object.h"
+#include "../include/lustre/lustre_ioctl.h"
 #include "llog_internal.h"
 
 struct obd_device *obd_devs[MAX_OBD_DEVICES];
@@ -287,13 +288,6 @@ int class_handle_ioctl(unsigned int cmd, unsigned long arg)
 		goto out;
 	}
 
-	case OBD_IOC_CLOSE_UUID: {
-		CDEBUG(D_IOCTL, "closing all connections to uuid %s (NOOP)\n",
-		       data->ioc_inlbuf1);
-		err = 0;
-		goto out;
-	}
-
 	case OBD_IOC_GETDEVICE: {
 		int     index = data->ioc_count;
 		char    *status, *str;
diff --git a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
index 33342bf..27a72d8 100644
--- a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
+++ b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
@@ -65,6 +65,7 @@
 #include "../../include/obd_support.h"
 #include "../../include/obd_class.h"
 #include "../../include/lprocfs_status.h"
+#include "../../include/lustre/lustre_ioctl.h"
 #include "../../include/lustre_ver.h"
 
 /* buffer MUST be at least the size of obd_ioctl_hdr */
diff --git a/drivers/staging/lustre/lustre/obdclass/obd_config.c b/drivers/staging/lustre/lustre/obdclass/obd_config.c
index 0eab123..6d0890f 100644
--- a/drivers/staging/lustre/lustre/obdclass/obd_config.c
+++ b/drivers/staging/lustre/lustre/obdclass/obd_config.c
@@ -37,6 +37,7 @@
 #define DEBUG_SUBSYSTEM S_CLASS
 #include "../include/obd_class.h"
 #include <linux/string.h>
+#include "../include/lustre/lustre_ioctl.h"
 #include "../include/lustre_log.h"
 #include "../include/lprocfs_status.h"
 #include "../include/lustre_param.h"
diff --git a/drivers/staging/lustre/lustre/obdecho/echo_client.c b/drivers/staging/lustre/lustre/obdecho/echo_client.c
index 5b29c4a..2cb487b 100644
--- a/drivers/staging/lustre/lustre/obdecho/echo_client.c
+++ b/drivers/staging/lustre/lustre/obdecho/echo_client.c
@@ -41,6 +41,7 @@
 #include "../include/cl_object.h"
 #include "../include/lustre_fid.h"
 #include "../include/lustre_acl.h"
+#include "../include/lustre/lustre_ioctl.h"
 #include "../include/lustre_net.h"
 
 #include "echo_internal.h"
diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c
index a2d948f..d231827 100644
--- a/drivers/staging/lustre/lustre/osc/osc_request.c
+++ b/drivers/staging/lustre/lustre/osc/osc_request.c
@@ -41,6 +41,7 @@
 
 #include "../include/lustre_ha.h"
 #include "../include/lprocfs_status.h"
+#include "../include/lustre/lustre_ioctl.h"
 #include "../include/lustre_debug.h"
 #include "../include/lustre_param.h"
 #include "../include/lustre_fid.h"
-- 
1.7.1

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#1464140 — [PATCH 35/80] staging: lustre: obdclass: unified flow control interfaces

FromJames Simmons <jsimmons@infradead.org>
Date2016-08-16 22:40 +0200
Subject[PATCH 35/80] staging: lustre: obdclass: unified flow control interfaces
Message-ID<s6Tjs-7Qi-53@gated-at.bofh.it>
In reply to#1464054
From: Fan Yong <fan.yong@intel.com>

Unify the flow control interfaces for MDC RPC and FLD RPC.
We allow to adjust the maximum inflight RPCs count via /sys
interface.

Signed-off-by: Fan Yong <fan.yong@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4687
Reviewed-on: http://review.whamcloud.com/9562
Reviewed-by: Niu Yawei <yawei.niu@intel.com>
Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
 drivers/staging/lustre/lustre/fld/fld_request.c    |   55 +--------
 drivers/staging/lustre/lustre/include/lustre_mdc.h |    5 -
 drivers/staging/lustre/lustre/include/obd.h        |   14 +--
 drivers/staging/lustre/lustre/include/obd_class.h  |    5 +
 drivers/staging/lustre/lustre/ldlm/ldlm_lib.c      |    4 +-
 drivers/staging/lustre/lustre/mdc/lproc_mdc.c      |   17 +--
 drivers/staging/lustre/lustre/mdc/mdc_internal.h   |    2 -
 drivers/staging/lustre/lustre/mdc/mdc_lib.c        |   64 ----------
 drivers/staging/lustre/lustre/mdc/mdc_locks.c      |   10 +-
 drivers/staging/lustre/lustre/mdc/mdc_request.c    |    6 +-
 drivers/staging/lustre/lustre/obdclass/genops.c    |  132 ++++++++++++++++++++
 11 files changed, 161 insertions(+), 153 deletions(-)

diff --git a/drivers/staging/lustre/lustre/fld/fld_request.c b/drivers/staging/lustre/lustre/fld/fld_request.c
index e59d626..ed7962e 100644
--- a/drivers/staging/lustre/lustre/fld/fld_request.c
+++ b/drivers/staging/lustre/lustre/fld/fld_request.c
@@ -53,57 +53,6 @@
 #include "../include/lustre_mdc.h"
 #include "fld_internal.h"
 
-/* TODO: these 3 functions are copies of flow-control code from mdc_lib.c
- * It should be common thing. The same about mdc RPC lock
- */
-static int fld_req_avail(struct client_obd *cli, struct mdc_cache_waiter *mcw)
-{
-	int rc;
-
-	spin_lock(&cli->cl_loi_list_lock);
-	rc = list_empty(&mcw->mcw_entry);
-	spin_unlock(&cli->cl_loi_list_lock);
-	return rc;
-};
-
-static void fld_enter_request(struct client_obd *cli)
-{
-	struct mdc_cache_waiter mcw;
-	struct l_wait_info lwi = { 0 };
-
-	spin_lock(&cli->cl_loi_list_lock);
-	if (cli->cl_r_in_flight >= cli->cl_max_rpcs_in_flight) {
-		list_add_tail(&mcw.mcw_entry, &cli->cl_cache_waiters);
-		init_waitqueue_head(&mcw.mcw_waitq);
-		spin_unlock(&cli->cl_loi_list_lock);
-		l_wait_event(mcw.mcw_waitq, fld_req_avail(cli, &mcw), &lwi);
-	} else {
-		cli->cl_r_in_flight++;
-		spin_unlock(&cli->cl_loi_list_lock);
-	}
-}
-
-static void fld_exit_request(struct client_obd *cli)
-{
-	struct list_head *l, *tmp;
-	struct mdc_cache_waiter *mcw;
-
-	spin_lock(&cli->cl_loi_list_lock);
-	cli->cl_r_in_flight--;
-	list_for_each_safe(l, tmp, &cli->cl_cache_waiters) {
-		if (cli->cl_r_in_flight >= cli->cl_max_rpcs_in_flight) {
-			/* No free request slots anymore */
-			break;
-		}
-
-		mcw = list_entry(l, struct mdc_cache_waiter, mcw_entry);
-		list_del_init(&mcw->mcw_entry);
-		cli->cl_r_in_flight++;
-		wake_up(&mcw->mcw_waitq);
-	}
-	spin_unlock(&cli->cl_loi_list_lock);
-}
-
 static int fld_rrb_hash(struct lu_client_fld *fld, u64 seq)
 {
 	LASSERT(fld->lcf_count > 0);
@@ -439,9 +388,9 @@ int fld_client_rpc(struct obd_export *exp,
 	req->rq_reply_portal = MDC_REPLY_PORTAL;
 	ptlrpc_at_set_req_timeout(req);
 
-	fld_enter_request(&exp->exp_obd->u.cli);
+	obd_get_request_slot(&exp->exp_obd->u.cli);
 	rc = ptlrpc_queue_wait(req);
-	fld_exit_request(&exp->exp_obd->u.cli);
+	obd_put_request_slot(&exp->exp_obd->u.cli);
 	if (rc)
 		goto out_req;
 
diff --git a/drivers/staging/lustre/lustre/include/lustre_mdc.h b/drivers/staging/lustre/lustre/include/lustre_mdc.h
index 0a8c639..bf6f87a 100644
--- a/drivers/staging/lustre/lustre/include/lustre_mdc.h
+++ b/drivers/staging/lustre/lustre/include/lustre_mdc.h
@@ -179,11 +179,6 @@ static inline void mdc_update_max_ea_from_body(struct obd_export *exp,
 	}
 }
 
-struct mdc_cache_waiter {
-	struct list_head	      mcw_entry;
-	wait_queue_head_t	     mcw_waitq;
-};
-
 /* mdc/mdc_locks.c */
 int it_open_error(int phase, struct lookup_intent *it);
 
diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h
index f5eeb05..cacd472 100644
--- a/drivers/staging/lustre/lustre/include/obd.h
+++ b/drivers/staging/lustre/lustre/include/obd.h
@@ -211,11 +211,12 @@ struct timeout_item {
 	struct list_head	 ti_chain;
 };
 
-#define OSC_MAX_RIF_DEFAULT       8
-#define OSC_MAX_RIF_MAX	 256
-#define OSC_MAX_DIRTY_DEFAULT  (OSC_MAX_RIF_DEFAULT * 4)
-#define OSC_MAX_DIRTY_MB_MAX   2048     /* arbitrary, but < MAX_LONG bytes */
-#define OSC_DEFAULT_RESENDS      10
+#define OBD_MAX_RIF_DEFAULT	8
+#define OBD_MAX_RIF_MAX		512
+#define OSC_MAX_RIF_MAX		256
+#define OSC_MAX_DIRTY_DEFAULT	(OBD_MAX_RIF_DEFAULT * 4)
+#define OSC_MAX_DIRTY_MB_MAX	2048	/* arbitrary, but < MAX_LONG bytes */
+#define OSC_DEFAULT_RESENDS	10
 
 /* possible values for fo_sync_lock_cancel */
 enum {
@@ -225,9 +226,6 @@ enum {
 	NUM_SYNC_ON_CANCEL_STATES
 };
 
-#define MDC_MAX_RIF_DEFAULT       8
-#define MDC_MAX_RIF_MAX	 512
-
 enum obd_cl_sem_lock_class {
 	OBD_CLI_SEM_NORMAL,
 	OBD_CLI_SEM_MGC,
diff --git a/drivers/staging/lustre/lustre/include/obd_class.h b/drivers/staging/lustre/lustre/include/obd_class.h
index 2f111a8..de808ee 100644
--- a/drivers/staging/lustre/lustre/include/obd_class.h
+++ b/drivers/staging/lustre/lustre/include/obd_class.h
@@ -97,6 +97,11 @@ int obd_zombie_impexp_init(void);
 void obd_zombie_impexp_stop(void);
 void obd_zombie_barrier(void);
 
+int obd_get_request_slot(struct client_obd *cli);
+void obd_put_request_slot(struct client_obd *cli);
+__u32 obd_get_max_rpcs_in_flight(struct client_obd *cli);
+int obd_set_max_rpcs_in_flight(struct client_obd *cli, __u32 max);
+
 struct llog_handle;
 struct llog_rec_hdr;
 typedef int (*llog_cb_t)(const struct lu_env *, struct llog_handle *,
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c
index 7c832aa..ee40006 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c
@@ -360,7 +360,7 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
 	cli->cl_chunkbits = PAGE_SHIFT;
 
 	if (!strcmp(name, LUSTRE_MDC_NAME)) {
-		cli->cl_max_rpcs_in_flight = MDC_MAX_RIF_DEFAULT;
+		cli->cl_max_rpcs_in_flight = OBD_MAX_RIF_DEFAULT;
 	} else if (totalram_pages >> (20 - PAGE_SHIFT) <= 128 /* MB */) {
 		cli->cl_max_rpcs_in_flight = 2;
 	} else if (totalram_pages >> (20 - PAGE_SHIFT) <= 256 /* MB */) {
@@ -368,7 +368,7 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
 	} else if (totalram_pages >> (20 - PAGE_SHIFT) <= 512 /* MB */) {
 		cli->cl_max_rpcs_in_flight = 4;
 	} else {
-		cli->cl_max_rpcs_in_flight = OSC_MAX_RIF_DEFAULT;
+		cli->cl_max_rpcs_in_flight = OBD_MAX_RIF_DEFAULT;
 	}
 	rc = ldlm_get_ref();
 	if (rc) {
diff --git a/drivers/staging/lustre/lustre/mdc/lproc_mdc.c b/drivers/staging/lustre/lustre/mdc/lproc_mdc.c
index 98d15fb..fca9450 100644
--- a/drivers/staging/lustre/lustre/mdc/lproc_mdc.c
+++ b/drivers/staging/lustre/lustre/mdc/lproc_mdc.c
@@ -43,11 +43,10 @@ static ssize_t max_rpcs_in_flight_show(struct kobject *kobj,
 	int len;
 	struct obd_device *dev = container_of(kobj, struct obd_device,
 					      obd_kobj);
-	struct client_obd *cli = &dev->u.cli;
+	__u32 max;
 
-	spin_lock(&cli->cl_loi_list_lock);
-	len = sprintf(buf, "%u\n", cli->cl_max_rpcs_in_flight);
-	spin_unlock(&cli->cl_loi_list_lock);
+	max = obd_get_max_rpcs_in_flight(&dev->u.cli);
+	len = sprintf(buf, "%u\n", max);
 
 	return len;
 }
@@ -59,7 +58,6 @@ static ssize_t max_rpcs_in_flight_store(struct kobject *kobj,
 {
 	struct obd_device *dev = container_of(kobj, struct obd_device,
 					      obd_kobj);
-	struct client_obd *cli = &dev->u.cli;
 	int rc;
 	unsigned long val;
 
@@ -67,12 +65,9 @@ static ssize_t max_rpcs_in_flight_store(struct kobject *kobj,
 	if (rc)
 		return rc;
 
-	if (val < 1 || val > MDC_MAX_RIF_MAX)
-		return -ERANGE;
-
-	spin_lock(&cli->cl_loi_list_lock);
-	cli->cl_max_rpcs_in_flight = val;
-	spin_unlock(&cli->cl_loi_list_lock);
+	rc = obd_set_max_rpcs_in_flight(&dev->u.cli, val);
+	if (rc)
+		count = rc;
 
 	return count;
 }
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_internal.h b/drivers/staging/lustre/lustre/mdc/mdc_internal.h
index 58f2841..53b4063 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_internal.h
+++ b/drivers/staging/lustre/lustre/mdc/mdc_internal.h
@@ -61,8 +61,6 @@ void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
 void mdc_rename_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
 		     const char *old, int oldlen, const char *new, int newlen);
 void mdc_close_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
-int mdc_enter_request(struct client_obd *cli);
-void mdc_exit_request(struct client_obd *cli);
 
 /* mdc/mdc_locks.c */
 int mdc_set_lock_data(struct obd_export *exp,
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_lib.c b/drivers/staging/lustre/lustre/mdc/mdc_lib.c
index 95c4550..b532623 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_lib.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_lib.c
@@ -484,67 +484,3 @@ void mdc_close_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
 	mdc_ioepoch_pack(epoch, op_data);
 	mdc_hsm_release_pack(req, op_data);
 }
-
-static int mdc_req_avail(struct client_obd *cli, struct mdc_cache_waiter *mcw)
-{
-	int rc;
-
-	spin_lock(&cli->cl_loi_list_lock);
-	rc = list_empty(&mcw->mcw_entry);
-	spin_unlock(&cli->cl_loi_list_lock);
-	return rc;
-};
-
-/* We record requests in flight in cli->cl_r_in_flight here.
- * There is only one write rpc possible in mdc anyway. If this to change
- * in the future - the code may need to be revisited.
- */
-int mdc_enter_request(struct client_obd *cli)
-{
-	int rc = 0;
-	struct mdc_cache_waiter mcw;
-	struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL);
-
-	spin_lock(&cli->cl_loi_list_lock);
-	if (cli->cl_r_in_flight >= cli->cl_max_rpcs_in_flight) {
-		list_add_tail(&mcw.mcw_entry, &cli->cl_cache_waiters);
-		init_waitqueue_head(&mcw.mcw_waitq);
-		spin_unlock(&cli->cl_loi_list_lock);
-		rc = l_wait_event(mcw.mcw_waitq, mdc_req_avail(cli, &mcw),
-				  &lwi);
-		if (rc) {
-			spin_lock(&cli->cl_loi_list_lock);
-			if (list_empty(&mcw.mcw_entry))
-				cli->cl_r_in_flight--;
-			list_del_init(&mcw.mcw_entry);
-			spin_unlock(&cli->cl_loi_list_lock);
-		}
-	} else {
-		cli->cl_r_in_flight++;
-		spin_unlock(&cli->cl_loi_list_lock);
-	}
-	return rc;
-}
-
-void mdc_exit_request(struct client_obd *cli)
-{
-	struct list_head *l, *tmp;
-	struct mdc_cache_waiter *mcw;
-
-	spin_lock(&cli->cl_loi_list_lock);
-	cli->cl_r_in_flight--;
-	list_for_each_safe(l, tmp, &cli->cl_cache_waiters) {
-		if (cli->cl_r_in_flight >= cli->cl_max_rpcs_in_flight) {
-			/* No free request slots anymore */
-			break;
-		}
-
-		mcw = list_entry(l, struct mdc_cache_waiter, mcw_entry);
-		list_del_init(&mcw->mcw_entry);
-		cli->cl_r_in_flight++;
-		wake_up(&mcw->mcw_waitq);
-	}
-	/* Empty waiting list? Decrease reqs in-flight number */
-
-	spin_unlock(&cli->cl_loi_list_lock);
-}
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_locks.c b/drivers/staging/lustre/lustre/mdc/mdc_locks.c
index 626fce5..d8406d5 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_locks.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_locks.c
@@ -809,7 +809,7 @@ resend:
 	 */
 	if (it) {
 		mdc_get_rpc_lock(obddev->u.cli.cl_rpc_lock, it);
-		rc = mdc_enter_request(&obddev->u.cli);
+		rc = obd_get_request_slot(&obddev->u.cli);
 		if (rc != 0) {
 			mdc_put_rpc_lock(obddev->u.cli.cl_rpc_lock, it);
 			mdc_clear_replay_flag(req, 0);
@@ -837,7 +837,7 @@ resend:
 		return rc;
 	}
 
-	mdc_exit_request(&obddev->u.cli);
+	obd_put_request_slot(&obddev->u.cli);
 	mdc_put_rpc_lock(obddev->u.cli.cl_rpc_lock, it);
 
 	if (rc < 0) {
@@ -1179,7 +1179,7 @@ static int mdc_intent_getattr_async_interpret(const struct lu_env *env,
 
 	obddev = class_exp2obd(exp);
 
-	mdc_exit_request(&obddev->u.cli);
+	obd_put_request_slot(&obddev->u.cli);
 	if (OBD_FAIL_CHECK(OBD_FAIL_MDC_GETATTR_ENQUEUE))
 		rc = -ETIMEDOUT;
 
@@ -1239,7 +1239,7 @@ int mdc_intent_getattr_async(struct obd_export *exp,
 	if (IS_ERR(req))
 		return PTR_ERR(req);
 
-	rc = mdc_enter_request(&obddev->u.cli);
+	rc = obd_get_request_slot(&obddev->u.cli);
 	if (rc != 0) {
 		ptlrpc_req_finished(req);
 		return rc;
@@ -1248,7 +1248,7 @@ int mdc_intent_getattr_async(struct obd_export *exp,
 	rc = ldlm_cli_enqueue(exp, &req, einfo, &res_id, &policy, &flags, NULL,
 			      0, LVB_T_NONE, &minfo->mi_lockh, 1);
 	if (rc < 0) {
-		mdc_exit_request(&obddev->u.cli);
+		obd_put_request_slot(&obddev->u.cli);
 		ptlrpc_req_finished(req);
 		return rc;
 	}
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_request.c b/drivers/staging/lustre/lustre/mdc/mdc_request.c
index 030295f..558f33b 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_request.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_request.c
@@ -58,16 +58,16 @@ static inline int mdc_queue_wait(struct ptlrpc_request *req)
 	struct client_obd *cli = &req->rq_import->imp_obd->u.cli;
 	int rc;
 
-	/* mdc_enter_request() ensures that this client has no more
+	/* obd_get_request_slot() ensures that this client has no more
 	 * than cl_max_rpcs_in_flight RPCs simultaneously inf light
 	 * against an MDT.
 	 */
-	rc = mdc_enter_request(cli);
+	rc = obd_get_request_slot(cli);
 	if (rc != 0)
 		return rc;
 
 	rc = ptlrpc_queue_wait(req);
-	mdc_exit_request(cli);
+	obd_put_request_slot(cli);
 
 	return rc;
 }
diff --git a/drivers/staging/lustre/lustre/obdclass/genops.c b/drivers/staging/lustre/lustre/obdclass/genops.c
index 99c2da6..be25434 100644
--- a/drivers/staging/lustre/lustre/obdclass/genops.c
+++ b/drivers/staging/lustre/lustre/obdclass/genops.c
@@ -1312,3 +1312,135 @@ void obd_zombie_impexp_stop(void)
 	obd_zombie_impexp_notify();
 	wait_for_completion(&obd_zombie_stop);
 }
+
+struct obd_request_slot_waiter {
+	struct list_head	orsw_entry;
+	wait_queue_head_t	orsw_waitq;
+	bool			orsw_signaled;
+};
+
+static bool obd_request_slot_avail(struct client_obd *cli,
+				   struct obd_request_slot_waiter *orsw)
+{
+	bool avail;
+
+	spin_lock(&cli->cl_loi_list_lock);
+	avail = !!list_empty(&orsw->orsw_entry);
+	spin_unlock(&cli->cl_loi_list_lock);
+
+	return avail;
+};
+
+/*
+ * For network flow control, the RPC sponsor needs to acquire a credit
+ * before sending the RPC. The credits count for a connection is defined
+ * by the "cl_max_rpcs_in_flight". If all the credits are occpuied, then
+ * the subsequent RPC sponsors need to wait until others released their
+ * credits, or the administrator increased the "cl_max_rpcs_in_flight".
+ */
+int obd_get_request_slot(struct client_obd *cli)
+{
+	struct obd_request_slot_waiter orsw;
+	struct l_wait_info lwi;
+	int rc;
+
+	spin_lock(&cli->cl_loi_list_lock);
+	if (cli->cl_r_in_flight < cli->cl_max_rpcs_in_flight) {
+		cli->cl_r_in_flight++;
+		spin_unlock(&cli->cl_loi_list_lock);
+		return 0;
+	}
+
+	init_waitqueue_head(&orsw.orsw_waitq);
+	list_add_tail(&orsw.orsw_entry, &cli->cl_loi_read_list);
+	orsw.orsw_signaled = false;
+	spin_unlock(&cli->cl_loi_list_lock);
+
+	lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL);
+	rc = l_wait_event(orsw.orsw_waitq,
+			  obd_request_slot_avail(cli, &orsw) ||
+			  orsw.orsw_signaled,
+			  &lwi);
+
+	/*
+	 * Here, we must take the lock to avoid the on-stack 'orsw' to be
+	 * freed but other (such as obd_put_request_slot) is using it.
+	 */
+	spin_lock(&cli->cl_loi_list_lock);
+	if (rc) {
+		if (!orsw.orsw_signaled) {
+			if (list_empty(&orsw.orsw_entry))
+				cli->cl_r_in_flight--;
+			else
+				list_del(&orsw.orsw_entry);
+		}
+	}
+
+	if (orsw.orsw_signaled) {
+		LASSERT(list_empty(&orsw.orsw_entry));
+
+		rc = -EINTR;
+	}
+	spin_unlock(&cli->cl_loi_list_lock);
+
+	return rc;
+}
+EXPORT_SYMBOL(obd_get_request_slot);
+
+void obd_put_request_slot(struct client_obd *cli)
+{
+	struct obd_request_slot_waiter *orsw;
+
+	spin_lock(&cli->cl_loi_list_lock);
+	cli->cl_r_in_flight--;
+
+	/* If there is free slot, wakeup the first waiter. */
+	if (!list_empty(&cli->cl_loi_read_list) &&
+	    likely(cli->cl_r_in_flight < cli->cl_max_rpcs_in_flight)) {
+		orsw = list_entry(cli->cl_loi_read_list.next,
+				  struct obd_request_slot_waiter, orsw_entry);
+		list_del_init(&orsw->orsw_entry);
+		cli->cl_r_in_flight++;
+		wake_up(&orsw->orsw_waitq);
+	}
+	spin_unlock(&cli->cl_loi_list_lock);
+}
+EXPORT_SYMBOL(obd_put_request_slot);
+
+__u32 obd_get_max_rpcs_in_flight(struct client_obd *cli)
+{
+	return cli->cl_max_rpcs_in_flight;
+}
+EXPORT_SYMBOL(obd_get_max_rpcs_in_flight);
+
+int obd_set_max_rpcs_in_flight(struct client_obd *cli, __u32 max)
+{
+	struct obd_request_slot_waiter *orsw;
+	__u32 old;
+	int diff;
+	int i;
+
+	if (max > OBD_MAX_RIF_MAX || max < 1)
+		return -ERANGE;
+
+	spin_lock(&cli->cl_loi_list_lock);
+	old = cli->cl_max_rpcs_in_flight;
+	cli->cl_max_rpcs_in_flight = max;
+	diff = max - old;
+
+	/* We increase the max_rpcs_in_flight, then wakeup some waiters. */
+	for (i = 0; i < diff; i++) {
+		if (list_empty(&cli->cl_loi_read_list))
+			break;
+
+		orsw = list_entry(cli->cl_loi_read_list.next,
+				  struct obd_request_slot_waiter, orsw_entry);
+		list_del_init(&orsw->orsw_entry);
+		cli->cl_r_in_flight++;
+		wake_up(&orsw->orsw_waitq);
+	}
+	spin_unlock(&cli->cl_loi_list_lock);
+
+	return 0;
+}
+EXPORT_SYMBOL(obd_set_max_rpcs_in_flight);
-- 
1.7.1

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#1464141 — [PATCH 09/80] staging: lustre: lmv: change handling of lmv striping information

FromJames Simmons <jsimmons@infradead.org>
Date2016-08-16 22:40 +0200
Subject[PATCH 09/80] staging: lustre: lmv: change handling of lmv striping information
Message-ID<s6Tjs-7Qi-57@gated-at.bofh.it>
In reply to#1464054
From: wang di <di.wang@intel.com>

The lmv_[un]pack_md function are used to calculate the
size of the data used to represent the LMV striping data.
The original code was straight forward in its calculate
with lmv_get_easize since only one type of data format
could exist. We want to be able to support different
version of this data in the future so this patch moves
to generating the size of the data using the stripe count
and which LMV_MAGIC_* version.

Signed-off-by: wang di <di.wang@intel.com>
Reviewed-on: http://review.whamcloud.com/7043
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3531
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
 .../lustre/lustre/include/lustre/lustre_idl.h      |    4 -
 drivers/staging/lustre/lustre/include/lustre_lmv.h |   15 +-
 drivers/staging/lustre/lustre/lmv/lmv_internal.h   |    7 +
 drivers/staging/lustre/lustre/lmv/lmv_obd.c        |  245 +++++++++++++++-----
 4 files changed, 198 insertions(+), 73 deletions(-)

diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
index 5f31724..0ad6605 100644
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
@@ -2482,10 +2482,6 @@ struct lmv_desc {
 	struct obd_uuid ld_uuid;
 };
 
-#define MEA_MAGIC_LAST_CHAR      0xb2221ca1
-#define MEA_MAGIC_ALL_CHARS      0xb222a11c
-#define MEA_MAGIC_HASH_SEGMENT   0xb222a11b
-
 /* lmv structures */
 #define LMV_MAGIC_V1	0x0CD10CD0	/* normal stripe lmv magic */
 #define LMV_USER_MAGIC	0x0CD20CD0	/* default lmv magic*/
diff --git a/drivers/staging/lustre/lustre/include/lustre_lmv.h b/drivers/staging/lustre/lustre/include/lustre_lmv.h
index 0620c8c..784d67b 100644
--- a/drivers/staging/lustre/lustre/include/lustre_lmv.h
+++ b/drivers/staging/lustre/lustre/include/lustre_lmv.h
@@ -41,12 +41,15 @@ struct lmv_oinfo {
 };
 
 struct lmv_stripe_md {
-	__u32	mea_magic;
-	__u32	mea_count;
-	__u32	mea_master;
-	__u32	mea_padding;
-	char	mea_pool_name[LOV_MAXPOOLNAME];
-	struct lu_fid mea_ids[0];
+	__u32	lsm_md_magic;
+	__u32	lsm_md_stripe_count;
+	__u32	lsm_md_master_mdt_index;
+	__u32	lsm_md_hash_type;
+	__u32	lsm_md_layout_version;
+	__u32	lsm_md_default_count;
+	__u32	lsm_md_default_index;
+	char	lsm_md_pool_name[LOV_MAXPOOLNAME];
+	struct lmv_oinfo lsm_md_oinfo[0];
 };
 
 union lmv_mds_md;
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_internal.h b/drivers/staging/lustre/lustre/lmv/lmv_internal.h
index ab01560..90a9786 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_internal.h
+++ b/drivers/staging/lustre/lustre/lmv/lmv_internal.h
@@ -94,6 +94,13 @@ lmv_find_target(struct lmv_obd *lmv, const struct lu_fid *fid)
 	return lmv_get_target(lmv, mds);
 }
 
+static inline int lmv_stripe_md_size(int stripe_count)
+{
+	struct lmv_stripe_md *lsm;
+
+	return sizeof(*lsm) + stripe_count * sizeof(lsm->lsm_md_oinfo[0]);
+}
+
 struct lmv_tgt_desc
 *lmv_locate_mds(struct lmv_obd *lmv, struct md_op_data *op_data,
 		struct lu_fid *fid);
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
index 8e83263..1ba5900 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
@@ -2376,105 +2376,224 @@ static int lmv_set_info_async(const struct lu_env *env, struct obd_export *exp,
 	return -EINVAL;
 }
 
-static int lmv_packmd(struct obd_export *exp, struct lov_mds_md **lmmp,
-		      struct lov_stripe_md *lsm)
+static int lmv_pack_md_v1(const struct lmv_stripe_md *lsm,
+			  struct lmv_mds_md_v1 *lmm1)
 {
-	struct obd_device	 *obd = class_exp2obd(exp);
-	struct lmv_obd	    *lmv = &obd->u.lmv;
-	struct lmv_stripe_md      *meap;
-	struct lmv_stripe_md      *lsmp;
-	int			mea_size;
-	int			i;
+	int cplen;
+	int i;
+
+	lmm1->lmv_magic = cpu_to_le32(lsm->lsm_md_magic);
+	lmm1->lmv_stripe_count = cpu_to_le32(lsm->lsm_md_stripe_count);
+	lmm1->lmv_master_mdt_index = cpu_to_le32(lsm->lsm_md_master_mdt_index);
+	lmm1->lmv_hash_type = cpu_to_le32(lsm->lsm_md_hash_type);
+	cplen = strlcpy(lmm1->lmv_pool_name, lsm->lsm_md_pool_name,
+			sizeof(lmm1->lmv_pool_name));
+	if (cplen >= sizeof(lmm1->lmv_pool_name))
+		return -E2BIG;
+
+	for (i = 0; i < lsm->lsm_md_stripe_count; i++)
+		fid_cpu_to_le(&lmm1->lmv_stripe_fids[i],
+			      &lsm->lsm_md_oinfo[i].lmo_fid);
+	return 0;
+}
+
+int lmv_pack_md(union lmv_mds_md **lmmp, const struct lmv_stripe_md *lsm,
+		int stripe_count)
+{
+	int lmm_size = 0, rc = 0;
+	bool allocated = false;
 
-	mea_size = lmv_get_easize(lmv);
-	if (!lmmp)
-		return mea_size;
+	LASSERT(lmmp);
 
+	/* Free lmm */
 	if (*lmmp && !lsm) {
+		int stripe_cnt;
+
+		stripe_cnt = lmv_mds_md_stripe_count_get(*lmmp);
+		lmm_size = lmv_mds_md_size(stripe_cnt,
+					   le32_to_cpu((*lmmp)->lmv_magic));
+		if (!lmm_size)
+			return -EINVAL;
 		kvfree(*lmmp);
 		*lmmp = NULL;
 		return 0;
 	}
 
+	/* Alloc lmm */
+	if (!*lmmp && !lsm) {
+		lmm_size = lmv_mds_md_size(stripe_count, LMV_MAGIC);
+		LASSERT(lmm_size > 0);
+		*lmmp = libcfs_kvzalloc(lmm_size, GFP_NOFS);
+		if (!*lmmp)
+			return -ENOMEM;
+		lmv_mds_md_stripe_count_set(*lmmp, stripe_count);
+		(*lmmp)->lmv_magic = cpu_to_le32(LMV_MAGIC);
+		return lmm_size;
+	}
+
+	/* pack lmm */
+	LASSERT(lsm);
+	lmm_size = lmv_mds_md_size(lsm->lsm_md_stripe_count,
+				   lsm->lsm_md_magic);
 	if (!*lmmp) {
-		*lmmp = libcfs_kvzalloc(mea_size, GFP_NOFS);
+		*lmmp = libcfs_kvzalloc(lmm_size, GFP_NOFS);
 		if (!*lmmp)
 			return -ENOMEM;
+		allocated = true;
 	}
 
-	if (!lsm)
-		return mea_size;
+	switch (lsm->lsm_md_magic) {
+	case LMV_MAGIC_V1:
+		rc = lmv_pack_md_v1(lsm, &(*lmmp)->lmv_md_v1);
+		break;
+	default:
+		rc = -EINVAL;
+		break;
+	}
 
-	lsmp = (struct lmv_stripe_md *)lsm;
-	meap = (struct lmv_stripe_md *)*lmmp;
+	if (rc && allocated) {
+		kvfree(*lmmp);
+		*lmmp = NULL;
+	}
 
-	if (lsmp->mea_magic != MEA_MAGIC_LAST_CHAR &&
-	    lsmp->mea_magic != MEA_MAGIC_ALL_CHARS)
-		return -EINVAL;
+	return lmm_size;
+}
+EXPORT_SYMBOL(lmv_pack_md);
 
-	meap->mea_magic = cpu_to_le32(lsmp->mea_magic);
-	meap->mea_count = cpu_to_le32(lsmp->mea_count);
-	meap->mea_master = cpu_to_le32(lsmp->mea_master);
+static int lmv_unpack_md_v1(struct obd_export *exp, struct lmv_stripe_md *lsm,
+			    const struct lmv_mds_md_v1 *lmm1)
+{
+	struct lmv_obd *lmv = &exp->exp_obd->u.lmv;
+	int stripe_count;
+	int rc = 0;
+	int cplen;
+	int i;
 
-	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		meap->mea_ids[i] = lsmp->mea_ids[i];
-		fid_cpu_to_le(&meap->mea_ids[i], &lsmp->mea_ids[i]);
+	lsm->lsm_md_magic = le32_to_cpu(lmm1->lmv_magic);
+	lsm->lsm_md_stripe_count = le32_to_cpu(lmm1->lmv_stripe_count);
+	lsm->lsm_md_master_mdt_index = le32_to_cpu(lmm1->lmv_master_mdt_index);
+	lsm->lsm_md_hash_type = le32_to_cpu(lmm1->lmv_hash_type);
+	lsm->lsm_md_layout_version = le32_to_cpu(lmm1->lmv_layout_version);
+	cplen = strlcpy(lsm->lsm_md_pool_name, lmm1->lmv_pool_name,
+			sizeof(lsm->lsm_md_pool_name));
+
+	if (cplen >= sizeof(lsm->lsm_md_pool_name))
+		return -E2BIG;
+
+	CDEBUG(D_INFO, "unpack lsm count %d, master %d hash_type %d layout_version %d\n",
+	       lsm->lsm_md_stripe_count, lsm->lsm_md_master_mdt_index,
+	       lsm->lsm_md_hash_type, lsm->lsm_md_layout_version);
+
+	stripe_count = le32_to_cpu(lmm1->lmv_stripe_count);
+	for (i = 0; i < le32_to_cpu(stripe_count); i++) {
+		fid_le_to_cpu(&lsm->lsm_md_oinfo[i].lmo_fid,
+			      &lmm1->lmv_stripe_fids[i]);
+		rc = lmv_fld_lookup(lmv, &lsm->lsm_md_oinfo[i].lmo_fid,
+				    &lsm->lsm_md_oinfo[i].lmo_mds);
+		if (rc)
+			return rc;
+		CDEBUG(D_INFO, "unpack fid #%d "DFID"\n", i,
+		       PFID(&lsm->lsm_md_oinfo[i].lmo_fid));
 	}
 
-	return mea_size;
+	return rc;
 }
 
-static int lmv_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp,
-			struct lov_mds_md *lmm, int lmm_size)
+int lmv_unpack_md(struct obd_export *exp, struct lmv_stripe_md **lsmp,
+		  const union lmv_mds_md *lmm, int stripe_count)
 {
-	struct obd_device	  *obd = class_exp2obd(exp);
-	struct lmv_stripe_md      **tmea = (struct lmv_stripe_md **)lsmp;
-	struct lmv_stripe_md       *mea = (struct lmv_stripe_md *)lmm;
-	struct lmv_obd	     *lmv = &obd->u.lmv;
-	int			 mea_size;
-	int			 i;
-	__u32		       magic;
+	struct lmv_stripe_md *lsm;
+	bool allocated = false;
+	int lsm_size, rc;
+
+	LASSERT(lsmp);
+
+	lsm = *lsmp;
+	/* Free memmd */
+	if (lsm && !lmm) {
+		int i;
 
-	mea_size = lmv_get_easize(lmv);
-	if (!lsmp)
-		return mea_size;
+		for (i = 1; i < lsm->lsm_md_stripe_count; i++) {
+			if (lsm->lsm_md_oinfo[i].lmo_root)
+				iput(lsm->lsm_md_oinfo[i].lmo_root);
+		}
 
-	if (*lsmp && !lmm) {
-		kvfree(*tmea);
+		kvfree(lsm);
 		*lsmp = NULL;
 		return 0;
 	}
 
-	LASSERT(mea_size == lmm_size);
+	/* Alloc memmd */
+	if (!lsm && !lmm) {
+		lsm_size = lmv_stripe_md_size(stripe_count);
+		lsm = libcfs_kvzalloc(lsm_size, GFP_NOFS);
+		if (!lsm)
+			return -ENOMEM;
+		lsm->lsm_md_stripe_count = stripe_count;
+		*lsmp = lsm;
+		return 0;
+	}
 
-	*tmea = libcfs_kvzalloc(mea_size, GFP_NOFS);
-	if (!*tmea)
-		return -ENOMEM;
+	/* Unpack memmd */
+	if (le32_to_cpu(lmm->lmv_magic) != LMV_MAGIC_V1) {
+		CERROR("%s: invalid magic %x.\n", exp->exp_obd->obd_name,
+		       le32_to_cpu(lmm->lmv_magic));
+		return -EINVAL;
+	}
 
-	if (!lmm)
-		return mea_size;
+	lsm_size = lmv_stripe_md_size(lmv_mds_md_stripe_count_get(lmm));
+	if (!lsm) {
+		lsm = libcfs_kvzalloc(lsm_size, GFP_NOFS);
+		if (!lsm)
+			return -ENOMEM;
+		allocated = true;
+		*lsmp = lsm;
+	}
 
-	if (mea->mea_magic == MEA_MAGIC_LAST_CHAR ||
-	    mea->mea_magic == MEA_MAGIC_ALL_CHARS ||
-	    mea->mea_magic == MEA_MAGIC_HASH_SEGMENT) {
-		magic = le32_to_cpu(mea->mea_magic);
-	} else {
-		/*
-		 * Old mea is not handled here.
-		 */
-		CERROR("Old not supportable EA is found\n");
-		LBUG();
+	switch (le32_to_cpu(lmm->lmv_magic)) {
+	case LMV_MAGIC_V1:
+		rc = lmv_unpack_md_v1(exp, lsm, &lmm->lmv_md_v1);
+		break;
+	default:
+		CERROR("%s: unrecognized magic %x\n", exp->exp_obd->obd_name,
+		       le32_to_cpu(lmm->lmv_magic));
+		rc = -EINVAL;
+		break;
 	}
 
-	(*tmea)->mea_magic = magic;
-	(*tmea)->mea_count = le32_to_cpu(mea->mea_count);
-	(*tmea)->mea_master = le32_to_cpu(mea->mea_master);
+	if (rc && allocated) {
+		kvfree(lsm);
+		*lsmp = NULL;
+		lsm_size = rc;
+	}
+	return lsm_size;
+}
 
-	for (i = 0; i < (*tmea)->mea_count; i++) {
-		(*tmea)->mea_ids[i] = mea->mea_ids[i];
-		fid_le_to_cpu(&(*tmea)->mea_ids[i], &(*tmea)->mea_ids[i]);
+int lmv_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp,
+		 struct lov_mds_md *lmm, int disk_len)
+{
+	return lmv_unpack_md(exp, (struct lmv_stripe_md **)lsmp,
+			     (union lmv_mds_md *)lmm, disk_len);
+}
+
+int lmv_packmd(struct obd_export *exp, struct lov_mds_md **lmmp,
+	       struct lov_stripe_md *lsm)
+{
+	const struct lmv_stripe_md *lmv = (struct lmv_stripe_md *)lsm;
+	struct obd_device *obd = exp->exp_obd;
+	struct lmv_obd *lmv_obd = &obd->u.lmv;
+	int stripe_count;
+
+	if (!lmmp) {
+		if (lsm)
+			stripe_count = lmv->lsm_md_stripe_count;
+		else
+			stripe_count = lmv_obd->desc.ld_tgt_count;
+
+		return lmv_mds_md_size(stripe_count, LMV_MAGIC_V1);
 	}
-	return mea_size;
+
+	return lmv_pack_md((union lmv_mds_md **)lmmp, lmv, 0);
 }
 
 static int lmv_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
-- 
1.7.1

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#1464142 — [PATCH 23/80] staging: lustre: mdc: fixup MDS_SWAP_LAYOUTS ELC handling

FromJames Simmons <jsimmons@infradead.org>
Date2016-08-16 22:40 +0200
Subject[PATCH 23/80] staging: lustre: mdc: fixup MDS_SWAP_LAYOUTS ELC handling
Message-ID<s6Tjs-7Qi-59@gated-at.bofh.it>
In reply to#1464054
From: John L. Hammond <john.hammond@intel.com>

In mdc_ioc_swap_layouts() cancel *any* unused locks with LAYOUT or
XATTR IBITS set on the two files. (This matches the locks acquired in
mdt_swap_layouts(). Previously only locks that conflicted with a CR
LAYOUT lock were cancelled.)

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4320
Reviewed-on: http://review.whamcloud.com/9329
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Faccini Bruno <bruno.faccini@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
 drivers/staging/lustre/lustre/mdc/mdc_request.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/lustre/lustre/mdc/mdc_request.c b/drivers/staging/lustre/lustre/mdc/mdc_request.c
index 702ced9..030295f 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_request.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_request.c
@@ -1670,9 +1670,11 @@ static int mdc_ioc_swap_layouts(struct obd_export *exp,
 	 * with the request RPC to avoid extra RPC round trips
 	 */
 	count = mdc_resource_get_unused(exp, &op_data->op_fid1, &cancels,
-					LCK_CR, MDS_INODELOCK_LAYOUT);
+					LCK_CR, MDS_INODELOCK_LAYOUT |
+					MDS_INODELOCK_XATTR);
 	count += mdc_resource_get_unused(exp, &op_data->op_fid2, &cancels,
-					 LCK_CR, MDS_INODELOCK_LAYOUT);
+					 LCK_CR, MDS_INODELOCK_LAYOUT |
+					 MDS_INODELOCK_XATTR);
 
 	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
 				   &RQF_MDS_SWAP_LAYOUTS);
-- 
1.7.1

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#1464143 — [PATCH 31/80] staging: lustre: llite: avoid a deadlock in page write

FromJames Simmons <jsimmons@infradead.org>
Date2016-08-16 22:40 +0200
Subject[PATCH 31/80] staging: lustre: llite: avoid a deadlock in page write
Message-ID<s6Tjs-7Qi-61@gated-at.bofh.it>
In reply to#1464054
From: Jinshan Xiong <jinshan.xiong@intel.com>

For a partial page write, it will have to issue a READ RPC firstly
to get a full uptodate page. If another page is already locked by
this thread it can easily cause deadlock.

Signed-off-by: Jinshan Xiong <jinshan.xiong@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4873
Reviewed-on: http://review.whamcloud.com/9928
Reviewed-by: Bobi Jam <bobijam@gmail.com>
Reviewed-by: Niu Yawei <yawei.niu@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
 drivers/staging/lustre/lustre/llite/rw26.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c
index d98c7ac..c14a1b6 100644
--- a/drivers/staging/lustre/lustre/llite/rw26.c
+++ b/drivers/staging/lustre/lustre/llite/rw26.c
@@ -506,8 +506,9 @@ static int ll_write_begin(struct file *file, struct address_space *mapping,
 	env = lcc->lcc_env;
 	io  = lcc->lcc_io;
 
-	/* To avoid deadlock, try to lock page first. */
-	vmpage = grab_cache_page_nowait(mapping, index);
+	if (likely(to == PAGE_SIZE)) /* LU-4873 */
+		/* To avoid deadlock, try to lock page first. */
+		vmpage = grab_cache_page_nowait(mapping, index);
 	if (unlikely(!vmpage || PageDirty(vmpage) || PageWriteback(vmpage))) {
 		struct vvp_io *vio = vvp_env_io(env);
 		struct cl_page_list *plist = &vio->u.write.vui_queue;
-- 
1.7.1

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#1464144 — [PATCH 44/80] staging: lustre: Remove static declaration in anonymous union

FromJames Simmons <jsimmons@infradead.org>
Date2016-08-16 22:40 +0200
Subject[PATCH 44/80] staging: lustre: Remove static declaration in anonymous union
Message-ID<s6Tjs-7Qi-63@gated-at.bofh.it>
In reply to#1464054
From: Christopher J. Morrone <morrone2@llnl.gov>

It is not permitted in C++ to have a static declaration inside
of an anonymous union. The g++ compiler will complaine with an
error like this:

 error: struct ost_id::<anonymous union>::ostid invalid; an
 anonymous union can only have non-static data members [-fpermissive]

This patch changes the code to use an unnamed struct in place of
"struct ostid" inside of the anonymous union. That name declaration
was completely unnecessary anyway, since it was not used anywhere else.

Signed-off-by: Christopher J. Morrone <morrone2@llnl.gov>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4987
Reviewed-on: http://review.whamcloud.com/10176
Reviewed-by: Robert Read <robert.read@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
 .../lustre/lustre/include/lustre/lustre_user.h     |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
index 4b2553c..59d45de 100644
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
@@ -167,7 +167,7 @@ struct lustre_mdt_attrs {
  */
 struct ost_id {
 	union {
-		struct ostid {
+		struct {
 			__u64	oi_id;
 			__u64	oi_seq;
 		} oi;
-- 
1.7.1

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