Btrfs: skip states when they does not contain bits to clear

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Clearing a range's bits is different with setting them, since we don't
need to touch them when states do not contain bits we want.

Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>

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Liu Bo 2012-02-16 18:34:37 +08:00 • committed by David Sterba

parent 285190d99f

commit 0449314a9c

1 changed files with 10 additions and 5 deletions

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fs/btrfs/extent_io.c

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