X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=fs%2Fnamei.c;h=94565bd7e73f6f41c176513ff15a68961fa351d8;hb=fd83ff901d69f6ecc2381c3dda412cca14b984bb;hp=567ee547492bc24096cad45c9c64aef84491fe42;hpb=474197a4f7921a97aa1aabc6f759823a024ff25f;p=platform%2Fkernel%2Flinux-starfive.git

diff --git a/fs/namei.c b/fs/namei.c
index 567ee547..94565bd 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -188,7 +188,7 @@ getname_flags(const char __user *filename, int flags, int *empty)
 		}
 	}
 
-	result->refcnt = 1;
+	atomic_set(&result->refcnt, 1);
 	/* The empty path is special. */
 	if (unlikely(!len)) {
 		if (empty)
@@ -249,7 +249,7 @@ getname_kernel(const char * filename)
 	memcpy((char *)result->name, filename, len);
 	result->uptr = NULL;
 	result->aname = NULL;
-	result->refcnt = 1;
+	atomic_set(&result->refcnt, 1);
 	audit_getname(result);
 
 	return result;
@@ -261,9 +261,10 @@ void putname(struct filename *name)
 	if (IS_ERR(name))
 		return;
 
-	BUG_ON(name->refcnt <= 0);
+	if (WARN_ON_ONCE(!atomic_read(&name->refcnt)))
+		return;
 
-	if (--name->refcnt > 0)
+	if (!atomic_dec_and_test(&name->refcnt))
 		return;
 
 	if (name->name != name->iname) {