From 9a019196ecaa57780141ef5d1f0bb31050d6ed5b Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Fri, 29 Oct 2010 15:37:33 -0400 Subject: [PATCH] Btrfs: fix delalloc checks in clone ioctl 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 Signed-off-by: Chris Mason --- fs/btrfs/ioctl.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 60f662c..d94bef5 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -1520,13 +1520,15 @@ 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 */ -- 2.7.4