vfs: add vfs_select_inode() helper

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Cc: <stable@vger.kernel.org> # v4.2+

1 files changed, 12 insertions, 0 deletions

diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 4bb4de8d95ea..7e9422cb5989 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -565,4 +565,16 @@ static inline struct dentry *d_real(struct dentry *dentry)
                 return dentry;
 }
 
+static inline struct inode *vfs_select_inode(struct dentry *dentry,
+                                             unsigned open_flags)
+{
+        struct inode *inode = d_inode(dentry);
+
+        if (inode && unlikely(dentry->d_flags & DCACHE_OP_SELECT_INODE))
+                inode = dentry->d_op->d_select_inode(dentry, open_flags);
+
+        return inode;
+}
+
+
 #endif  /* __LINUX_DCACHE_H */