# mount -t btrfs /dev/sda7 /mnt
# dd if=/dev/zero of=/mnt/src bs=10K count=1
# sync
# clone 4K from /mnt/src to /mnt/dst
kernel BUG at fs/btrfs/delayed-inode.c:1693!
We should reverse space for both file extent item insertion and
inode update.
Signed-off-by: Li Zefan <lizf@xxxxxxxxxxxxxx>
---
fs/btrfs/ioctl.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 0b980af..05af14c 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -2314,7 +2314,7 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
else
new_key.offset = destoff;
- trans = btrfs_start_transaction(root, 1);
+ trans = btrfs_start_transaction(root, 2);
if (IS_ERR(trans)) {
ret = PTR_ERR(trans);
goto out;
--
1.7.3.1
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