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Groups > linux.kernel > #1223250

[PATCH 3.14 07/18] dm thin metadata: delete btrees when releasing metadata snapshot

From Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups linux.kernel
Subject [PATCH 3.14 07/18] dm thin metadata: delete btrees when releasing metadata snapshot
Date 2015-09-12 01:20 +0200
Message-ID <q7FLR-7Un-59@gated-at.bofh.it> (permalink)
References <q7FiN-75P-23@gated-at.bofh.it>
Organization linux.* mail to news gateway

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3.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Joe Thornber <ejt@redhat.com>

commit 7f518ad0a212e2a6fd68630e176af1de395070a7 upstream.

The device details and mapping trees were just being decremented
before.  Now btree_del() is called to do a deep delete.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/md/dm-thin-metadata.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/md/dm-thin-metadata.c
+++ b/drivers/md/dm-thin-metadata.c
@@ -1295,8 +1295,8 @@ static int __release_metadata_snap(struc
 		return r;
 
 	disk_super = dm_block_data(copy);
-	dm_sm_dec_block(pmd->metadata_sm, le64_to_cpu(disk_super->data_mapping_root));
-	dm_sm_dec_block(pmd->metadata_sm, le64_to_cpu(disk_super->device_details_root));
+	dm_btree_del(&pmd->info, le64_to_cpu(disk_super->data_mapping_root));
+	dm_btree_del(&pmd->details_info, le64_to_cpu(disk_super->device_details_root));
 	dm_sm_dec_block(pmd->metadata_sm, held_root);
 
 	return dm_tm_unlock(pmd->tm, copy);


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Thread

[PATCH 3.14 00/18] 3.14.52-stable review Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-09-12 01:20 +0200
  [PATCH 3.14 18/18] arm64: KVM: Fix host crash when injecting a fault into a 32bit guest Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-09-12 01:20 +0200
  [PATCH 3.14 14/18] regmap: regcache-rbtree: Clean new present bits on present bitmap resize Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-09-12 01:20 +0200
  [PATCH 3.14 06/18] perf: Fix PERF_EVENT_IOC_PERIOD migration race Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-09-12 01:20 +0200
  [PATCH 3.14 16/18] arm64/mm: Remove hack in mmap randomize layout Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-09-12 01:20 +0200
  [PATCH 3.14 05/18] perf: Fix fasync handling on inherited events Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-09-12 01:20 +0200
  [PATCH 3.14 03/18] mm/hwpoison: fix page refcount of unknown non LRU page Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-09-12 01:20 +0200
  [PATCH 3.14 07/18] dm thin metadata: delete btrees when releasing metadata snapshot Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-09-12 01:20 +0200
  Re: [PATCH 3.14 00/18] 3.14.52-stable review Shuah Khan <shuahkh@osg.samsung.com> - 2015-09-12 03:10 +0200
  Re: [PATCH 3.14 00/18] 3.14.52-stable review Guenter Roeck <linux@roeck-us.net> - 2015-09-12 06:30 +0200
  Re: [PATCH 3.14 00/18] 3.14.52-stable review Sudip Mukherjee <sudipm.mukherjee@gmail.com> - 2015-09-12 13:10 +0200
    Re: [PATCH 3.14 00/18] 3.14.52-stable review Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-09-12 18:00 +0200
      [PATCH] tty/vt: don't set font mappings on vc not supporting this Sudip Mukherjee <sudipm.mukherjee@gmail.com> - 2015-09-13 08:10 +0200
        Re: [PATCH] tty/vt: don't set font mappings on vc not supporting this Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-09-21 06:50 +0200
          Re: [PATCH] tty/vt: don't set font mappings on vc not supporting this Sudip Mukherjee <sudipm.mukherjee@gmail.com> - 2015-09-21 07:00 +0200

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