xfs: move inode copy-on-write predicates to xfs_inode.[ch]

Move these inode predicate functions to xfs_inode.[ch] since they're not
reflink functions.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

1 files changed, 8 insertions, 0 deletions

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index fd1a59af6cbb..dd2b80d5d344 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -4297,3 +4297,11 @@ xfs_inode_alloc_unitsize(
 
 	return XFS_FSB_TO_B(ip->i_mount, blocks);
 }
+
+/* Should we always be using copy on write for file writes? */
+bool
+xfs_is_always_cow_inode(
+	struct xfs_inode	*ip)
+{
+	return ip->i_mount->m_always_cow && xfs_has_reflink(ip->i_mount);
+}