Btrfs: avoid unnecessary scrub workers allocation

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We only allocate scrub workers if we pass all the necessary
checks, for example, there are no operation in progress.

Besides, move mutex lock protection outside of scrub_workers_get()
/scrub_workers_put().

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>

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Wang Shilong 2013-10-12 02:11:12 +08:00 • committed by Chris Mason

parent 007d31f755

commit 3b7a016f44

1 changed files with 10 additions and 13 deletions

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23

fs/btrfs/scrub.c

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