ext4: switch to ->iterate_shared()

Note that we need relax_dir() equivalent for directories
locked shared.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 3dc0258a2b64..e87245ac6941 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -3134,6 +3134,13 @@ static inline bool dir_relax(struct inode *inode)
 	return !IS_DEADDIR(inode);
 }
 
+static inline bool dir_relax_shared(struct inode *inode)
+{
+	inode_unlock_shared(inode);
+	inode_lock_shared(inode);
+	return !IS_DEADDIR(inode);
+}
+
 extern bool path_noexec(const struct path *path);
 extern void inode_nohighmem(struct inode *inode);