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make simple_lookup() usable for filesystems that set ->s_d_op
[firefly-linux-kernel-4.4.55.git]
/
fs
/
libfs.c
diff --git
a/fs/libfs.c
b/fs/libfs.c
index c3a0837fb861d8d403e6b3b7fadd4056aa42df79..3a3a9b53bf5a974d3c206f31ae402aaf752dd39c 100644
(file)
--- a/
fs/libfs.c
+++ b/
fs/libfs.c
@@
-61,7
+61,8
@@
struct dentry *simple_lookup(struct inode *dir, struct dentry *dentry, unsigned
if (dentry->d_name.len > NAME_MAX)
return ERR_PTR(-ENAMETOOLONG);
- d_set_d_op(dentry, &simple_dentry_operations);
+ if (!dentry->d_sb->s_d_op)
+ d_set_d_op(dentry, &simple_dentry_operations);
d_add(dentry, NULL);
return NULL;
}