[PATCH v8 1/7] fuse: add fuse_should_enable_dax() helper

[Jeffle Xu <jefflexu@xxxxxxxxxxxxxxxxx>]

This is in prep for following per inode DAX checking.

Signed-off-by: Jeffle Xu <jefflexu@xxxxxxxxxxxxxxxxx>
---
 fs/fuse/dax.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/fs/fuse/dax.c b/fs/fuse/dax.c
index 5778ebfbce5e..4c48a57632bd 100644
--- a/fs/fuse/dax.c
+++ b/fs/fuse/dax.c
@@ -1329,11 +1329,19 @@ static const struct address_space_operations fuse_dax_file_aops  = {
 	.invalidatepage	= noop_invalidatepage,
 };
 
-void fuse_dax_inode_init(struct inode *inode)
+static bool fuse_should_enable_dax(struct inode *inode)
 {
 	struct fuse_conn *fc = get_fuse_conn(inode);
 
 	if (!fc->dax)
+		return false;
+
+	return true;
+}
+
+void fuse_dax_inode_init(struct inode *inode)
+{
+	if (!fuse_should_enable_dax(inode))
 		return;
 
 	inode->i_flags |= S_DAX;
-- 
2.27.0