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| author |   NeilBrown <neilb@suse.de> | 2012-07-31 10:04:55 +1000 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2012-07-31 10:04:55 +1000 |
| commit | 90cf195d9bcb4bf70e8b6df5073b05164b279ba0 (patch) | |
| tree | 815e0ad7c0b7f4af7eb04d07eb2093e60540bb55 /drivers/md/raid1.c | |
| parent | raid5: Add R5_ReadNoMerge flag which prevent bio from merging at block layer (diff) | |
| download | linux-dev-90cf195d9bcb4bf70e8b6df5073b05164b279ba0.tar.xz linux-dev-90cf195d9bcb4bf70e8b6df5073b05164b279ba0.zip | |
md: remove duplicated test on ->openers when calling do_md_stop()
do_md_stop tests mddev->openers while holding ->open_mutex,
and fails if this count is too high.
So callers do not need to check mddev->openers and doing so isn't
very meaningful as they don't hold ->open_mutex so the number could
change.
So remove the unnecessary tests on mddev->openers.
These are not called often enough for there to be any gain in
an early test on ->open_mutex to avoid the need for a slightly more
costly mutex_lock call.
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/raid1.c')
0 files changed, 0 insertions, 0 deletions