vfs: avoid non-forwarding large load after small store in path lookup

[firefly-linux-kernel-4.4.55.git] / include / linux / dcache.h

diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index e4ae2ad48d072efcd78e3905c3f1e212130c88cc..75a227cc7ce20a70f9a7e066059a5b8317696c82 100644 (file)
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -55,6 +55,7 @@ struct qstr {
 #define QSTR_INIT(n,l) { { { .len = l } }, .name = n }
 #define hashlen_hash(hashlen) ((u32) (hashlen))
 #define hashlen_len(hashlen)  ((u32)((hashlen) >> 32))
+#define hashlen_create(hash,len) (((u64)(len)<<32)|(u32)(hash))
 
 struct dentry_stat_t {
        long nr_dentry;