| From 3d8ef16ce0e1fb9aaec31aef403950302a854532 Mon Sep 17 00:00:00 2001 |
| From: Liu Bo <bo.li.liu@oracle.com> |
| Date: Fri, 26 May 2017 17:44:23 -0600 |
| Subject: 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> |
| --- |
| fs/btrfs/inode.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| 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) |
| -- |
| 2.17.1 |
| |
