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authorLiu Bo <bo.li.liu@oracle.com>2017-05-26 17:44:23 -0600
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-11-10 07:42:48 -0800
commitf33ed8438676d4731e0ea66f592ea4cd0e8fa96b (patch)
tree8a5ced822479ff8951f01c446ea634bf6bc10817
parent30037edd16f4b43eafdaf8bbfd5c00fb9666004f (diff)
Btrfs: clear EXTENT_DEFRAG bits in finish_ordered_io
[ Upstream commit 452e62b71fbbefe2646fad3a968371a026936c6d ] 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> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--fs/btrfs/inode.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index bd036557c6bc..5ebdb58079e1 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -2966,7 +2966,7 @@ static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent)
ret = test_range_bit(io_tree, ordered_extent->file_offset,
ordered_extent->file_offset + ordered_extent->len - 1,
- EXTENT_DEFRAG, 1, cached_state);
+ EXTENT_DEFRAG, 0, cached_state);
if (ret) {
u64 last_snapshot = btrfs_root_last_snapshot(&root->root_item);
if (0 && last_snapshot >= BTRFS_I(inode)->generation)