Btrfs: clear EXTENT_DEFRAG bits in finish_ordered_io
authorLiu Bo <bo.li.liu@oracle.com>
Fri, 26 May 2017 23:44:23 +0000 (17:44 -0600)
committerChris Mason <clm@fb.com>
Fri, 9 Jun 2017 19:48:29 +0000 (12:48 -0700)
commit452e62b71fbbefe2646fad3a968371a026936c6d
tree74f25261a8064b9f36735dcdbb47cf1dbea1f8ac
parent286b92f43c0d0ae2c29a61769b66219fe5ae6701
Btrfs: clear EXTENT_DEFRAG bits in finish_ordered_io

Before this, we use 'filled' mode here, ie. if all range has been
filled with EXTENT_DEFRAG bits, get to clear it, but if the defrag
range joins the adjacent delalloc range, then we'll have EXTENT_DEFRAG
bits in extent_state until releasing this inode's pages, and that
prevents extent_data from being freed.

This clears the bit if any was found within the ordered extent.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
fs/btrfs/inode.c