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Groups > linux.kernel > #1733583
| From | "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH for 4.9 32/39] md/raid10: submit bio directly to replacement disk |
| Date | 2017-09-18 02:50 +0200 |
| Message-ID | <uqSq7-72l-29@gated-at.bofh.it> (permalink) |
| References | <uqSq5-72l-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Shaohua Li <shli@fb.com>
[ Upstream commit 6d399783e9d4e9bd44931501948059d24ad96ff8 ]
Commit 57c67df(md/raid10: submit IO from originating thread instead of
md thread) submits bio directly for normal disks but not for replacement
disks. There is no point we shouldn't do this for replacement disks.
Cc: NeilBrown <neilb@suse.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
---
drivers/md/raid10.c | 19 ++++++++++++++++---
1 file changed, 16 insertions(+), 3 deletions(-)
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 4c4aab02e311..b19b551bb34b 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1407,11 +1407,24 @@ static void __make_request(struct mddev *mddev, struct bio *bio)
mbio->bi_private = r10_bio;
atomic_inc(&r10_bio->remaining);
+
+ cb = blk_check_plugged(raid10_unplug, mddev,
+ sizeof(*plug));
+ if (cb)
+ plug = container_of(cb, struct raid10_plug_cb,
+ cb);
+ else
+ plug = NULL;
spin_lock_irqsave(&conf->device_lock, flags);
- bio_list_add(&conf->pending_bio_list, mbio);
- conf->pending_count++;
+ if (plug) {
+ bio_list_add(&plug->pending, mbio);
+ plug->pending_cnt++;
+ } else {
+ bio_list_add(&conf->pending_bio_list, mbio);
+ conf->pending_count++;
+ }
spin_unlock_irqrestore(&conf->device_lock, flags);
- if (!mddev_check_plugged(mddev))
+ if (!plug)
md_wakeup_thread(mddev->thread);
}
}
--
2.11.0
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[PATCH for 4.9 18/39] iommu/exynos: Block SYSMMU while invalidating FLPD cache "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-09-18 02:50 +0200 [PATCH for 4.9 27/39] x86/acpi: Restore the order of CPU IDs "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-09-18 02:50 +0200 [PATCH for 4.9 22/39] netfilter: nfnl_cthelper: fix incorrect helper->expect_class_max "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-09-18 02:50 +0200 [PATCH for 4.9 35/39] xfs: remove kmem_zalloc_greedy "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-09-18 02:50 +0200 [PATCH for 4.9 31/39] rds: ib: add error handle "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-09-18 02:50 +0200 [PATCH for 4.9 24/39] nfs: make nfs4_cb_sv_ops static "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-09-18 02:50 +0200 [PATCH for 4.9 32/39] md/raid10: submit bio directly to replacement disk "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-09-18 02:50 +0200 [PATCH for 4.9 38/39] ARM: dts: BCM5301X: Fix memory start address "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-09-18 02:50 +0200 [PATCH for 4.9 29/39] arm64: kasan: avoid bad virt_to_pfn() "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-09-18 02:50 +0200 [PATCH for 4.9 39/39] tools/power turbostat: bugfix: GFXMHz column not changing "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-09-18 02:50 +0200 [PATCH for 4.9 20/39] MIPS: smp-cps: Fix retrieval of VPE mask on big endian CPUs "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-09-18 02:50 +0200 [PATCH for 4.9 28/39] iommu/io-pgtable-arm: Check for leaf entry before dereferencing it "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-09-18 02:50 +0200 [PATCH for 4.9 23/39] parisc: perf: Fix potential NULL pointer dereference "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-09-18 02:50 +0200 [PATCH for 4.9 34/39] i2c: meson: fix wrong variable usage in meson_i2c_put_data "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-09-18 02:50 +0200 [PATCH for 4.9 36/39] ASoC: wm_adsp: Return an error on write to a disabled volatile control "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-09-18 02:50 +0200 [PATCH for 4.9 25/39] ibmvnic: Free tx/rx scrq pointer array when releasing sub-crqs "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-09-18 02:50 +0200 [PATCH for 4.9 33/39] netfilter: nf_tables: set pktinfo->thoff at AH header if found "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-09-18 02:50 +0200 [PATCH for 4.9 37/39] libata: transport: Remove circular dependency at free time "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-09-18 02:50 +0200
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