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Commit b52abf1e authored by Filipe David Borba Manana's avatar Filipe David Borba Manana Committed by Chris Mason
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Btrfs: don't wait for ordered data outside desired range 



In btrfs_wait_ordered_range(), if we found an extent to the left
of the start of our desired wait range and the last byte of that
extent is 1 less than the desired range's start, we would would
wait for the IO completion of that extent unnecessarily.

Signed-off-by: default avatarFilipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: default avatarJosef Bacik <jbacik@fusionio.com>
Signed-off-by: default avatarChris Mason <chris.mason@fusionio.com>
parent b1a06a4b

fs/btrfs/ordered-data.c

+1 −1
Original line number Diff line number Diff line
@@ -803,7 +803,7 @@ int btrfs_wait_ordered_range(struct inode *inode, u64 start, u64 len) 
			btrfs_put_ordered_extent(ordered);

			break;

		}

		if (ordered->file_offset + ordered->len < start) {

		if (ordered->file_offset + ordered->len <= start) {

			btrfs_put_ordered_extent(ordered);

			break;

		}