Btrfs: allow compressed extents to be merged during defragment

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The rule originally comes from nocow writing, but snapshot-aware
defrag is a different case, the extent has been writen and we're
not going to change the extent but add a reference on the data.

So we're able to allow such compressed extents to be merged into
one bigger extent if they're pointing to the same data.

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

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Liu Bo 2013-08-02 16:30:40 +08:00 • committed by Chris Mason

parent 8b87dc17fb

commit 116e0024c4

1 changed files with 8 additions and 6 deletions

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fs/btrfs/inode.c

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