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| author |   Shaohua Li <shli@fb.com> | 2016-09-08 10:49:06 -0700 |
|---|---|---|
| committer | Shaohua Li <shli@fb.com> | 2016-09-21 09:09:44 -0700 |
| commit | 1dffddddd8315863f1a6d79c512b737864ef6a1a (patch) | |
| tree | 1272477cb253701ca63745f4e93af4cc1a1be07e /drivers/md | |
| parent | lib/raid6: Add AVX512 optimized xor_syndrome functions (diff) | |
| download | linux-dev-1dffddddd8315863f1a6d79c512b737864ef6a1a.tar.xz linux-dev-1dffddddd8315863f1a6d79c512b737864ef6a1a.zip | |
raid5: allow arbitrary max_hw_sectors
raid5 will split bio to proper size internally, there is no point to use
underlayer disk's max_hw_sectors. In my qemu system, without the change,
the raid5 only receives 128k size bio, which reduces the chance of bio
merge sending to underlayer disks.
Signed-off-by: Shaohua Li <shli@fb.com>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/raid5.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index ee7fc3701700..5883ef0d95bf 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -7066,6 +7066,8 @@ static int raid5_run(struct mddev *mddev) else queue_flag_clear_unlocked(QUEUE_FLAG_DISCARD, mddev->queue); + + blk_queue_max_hw_sectors(mddev->queue, UINT_MAX); } if (journal_dev) { |