[PATCH v2 20/21] fuse: use passthrough getattr in setattr suid/sgid handling

[Joanne Koong <joannelkoong@gmail.com>]

When refreshing i_mode for suid/sgid kill during setattr, use
passthrough getattr if the inode has that enabled.

Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
---
 fs/fuse/dir.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index b67b3b334e69..fd1b3fd86968 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -2524,7 +2524,11 @@ static int fuse_setattr(struct mnt_idmap *idmap, struct dentry *entry,
 			 * ia_mode calculation may have used stale i_mode.
 			 * Refresh and recalculate.
 			 */
-			ret = fuse_do_getattr(idmap, inode, NULL, file);
+			if (fuse_passthrough_op(inode, FUSE_GETATTR))
+				ret = fuse_passthrough_getattr(inode, NULL,
+							       STATX_MODE, 0);
+			else
+				ret = fuse_do_getattr(idmap, inode, NULL, file);
 			if (ret)
 				return ret;
 
-- 
2.52.0