x86/xen: Reset VCPU0 info pointer after shared_info remap

[mirror_ubuntu-artful-kernel.git] / fs / dcache.c

diff --git a/fs/dcache.c b/fs/dcache.c
index 3203470c59c2087847578ed0cc2ddb2a65b6d840..ccc2bcdcfdfbc134a09610192d62d072654e14a0 100644 (file)
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -231,7 +231,7 @@ static inline int dentry_cmp(const struct dentry *dentry, const unsigned char *c
 {
        /*
         * Be careful about RCU walk racing with rename:
-        * use 'lockless_dereference' to fetch the name pointer.
+        * use 'READ_ONCE' to fetch the name pointer.
         *
         * NOTE! Even if a rename will mean that the length
         * was not loaded atomically, we don't care. The
@@ -245,7 +245,7 @@ static inline int dentry_cmp(const struct dentry *dentry, const unsigned char *c
         * early because the data cannot match (there can
         * be no NUL in the ct/tcount data)
         */
-       const unsigned char *cs = lockless_dereference(dentry->d_name.name);
+       const unsigned char *cs = READ_ONCE(dentry->d_name.name);
 
        return dentry_string_cmp(cs, ct, tcount);
 }