[RFC PATCH V6 4/7] ovl: set 'DONTCACHE' flag for overlayfs inode

[Chengguang Xu]

From: Chengguang Xu <charliecgxu@xxxxxxxxxxx>

Set 'DONTCACHE' flag to overlayfs inode so that
upper inode to be always synced before eviction.

Signed-off-by: Chengguang Xu <charliecgxu@xxxxxxxxxxx>
---
 fs/overlayfs/inode.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index 027ffc0a2539..c4472299d5df 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -791,6 +791,7 @@ void ovl_inode_init(struct inode *inode, struct ovl_inode_params *oip,
 	ovl_copyattr(realinode, inode);
 	ovl_copyflags(realinode, inode);
 	ovl_map_ino(inode, ino, fsid);
+	d_mark_dontcache(inode);
 }
 
 static void ovl_fill_inode(struct inode *inode, umode_t mode, dev_t rdev)
-- 
2.27.0