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Btrfs: don't wait for ordered data outside desired range

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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: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
This commit is contained in:
Filipe David Borba Manana 2013-11-06 15:12:40 +00:00 committed by Chris Mason
parent b1a06a4b57
commit b52abf1e3b
1 changed files with 1 additions and 1 deletions
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2
fs/btrfs/ordered-data.c
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@ -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;
}