This patch overrides a previous one posted, as it had the logic reverted and
wrong.
The lookup_first_ordered_extent() was done on the wrong inode, and the
->delalloc_bytes test was wrong, as the following btrfs_wait_ordered_range()
would only invoke a range write and wouldn't write the entire file data range.
Also, a bad parameter was passed to btrfs_wait_ordered_range().
Signed-off-by: Yehuda Sadeh <yehuda@xxxxxxxxxxxxxxx>
---
fs/btrfs/ioctl.c | 8 +++++---
1 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 9254b3d..3471b22 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1530,13 +1530,15 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
while (1) {
struct btrfs_ordered_extent *ordered;
lock_extent(&BTRFS_I(src)->io_tree, off, off+len, GFP_NOFS);
- ordered = btrfs_lookup_first_ordered_extent(inode, off+len);
- if (BTRFS_I(src)->delalloc_bytes == 0 && !ordered)
+ ordered = btrfs_lookup_first_ordered_extent(src, off+len);
+ if (!ordered &&
+ !test_range_bit(&BTRFS_I(src)->io_tree, off, off+len,
+ EXTENT_DELALLOC, 0, NULL))
break;
unlock_extent(&BTRFS_I(src)->io_tree, off, off+len, GFP_NOFS);
if (ordered)
btrfs_put_ordered_extent(ordered);
- btrfs_wait_ordered_range(src, off, off+len);
+ btrfs_wait_ordered_range(src, off, len);
}
/* clone data */
--
1.5.6.5
--
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