Btrfs: fix wrong free space information

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Btrfs subtracted the size of the allocated space twice when it allocated
the space from the bitmap in the cluster, it broke the free space information
and led to oops finally.

And this patch also fixes the bug that ctl->free_space was subtracted
without lock.

Reported-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

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Miao Xie 2011-08-05 09:32:35 +00:00 • committed by Chris Mason

parent f4ac904c41

commit bb3ac5a4df

1 changed files with 11 additions and 5 deletions

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16

fs/btrfs/free-space-cache.c

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