From: "Darrick J. Wong" djwong@kernel.org
commit d4f74e162d238ce00a640af5f0611c3f51dad70e upstream.
The final parameter of filemap_write_and_wait_range is the end of the range to flush, not the length of the range to flush.
Fixes: 46afb0628b86 ("xfs: only flush the unshared range in xfs_reflink_unshare") Signed-off-by: Darrick J. Wong djwong@kernel.org Reviewed-by: Chandan Babu R chandanrlinux@gmail.com Reviewed-by: Brian Foster bfoster@redhat.com Signed-off-by: Amir Goldstein amir73il@gmail.com Acked-by: Darrick J. Wong djwong@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/xfs/xfs_reflink.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/fs/xfs/xfs_reflink.c +++ b/fs/xfs/xfs_reflink.c @@ -1503,7 +1503,8 @@ xfs_reflink_unshare( if (error) goto out;
- error = filemap_write_and_wait_range(inode->i_mapping, offset, len); + error = filemap_write_and_wait_range(inode->i_mapping, offset, + offset + len - 1); if (error) goto out;