Btrfs: fix unnecessary while loop when search the free space, cache

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When we find a bitmap free space entry, we may check the previous extent
entry covers the offset or not. But if we find this entry is also a bitmap
entry, we will continue to check the previous entry of the current one by
a while loop. It is unnecessary because it is impossible that the extent
entry which is in front of a bitmap entry can cover the offset of the entry
after that bitmap entry.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>

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Miao Xie 2012-10-18 08:18:01 +00:00 • committed by Josef Bacik

parent de1ee92ac3

commit de6c4115a2

1 changed files with 10 additions and 20 deletions

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fs/btrfs/free-space-cache.c

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