X-Git-Url: http://git.monstr.eu/?a=blobdiff_plain;f=mm%2Fmmap_lock.c;h=1854850b4b897f387c0681a45b940b8ee793e5a2;hb=e904c2ccf9b5cb356eec754ffea05c08984f6535;hp=f5852a058ce0bc835943309bdc39edf0ea27893f;hpb=9d69294be2a363a0128f4dc0316a7a4bb29ea91f;p=linux-2.6-microblaze.git

diff --git a/mm/mmap_lock.c b/mm/mmap_lock.c
index f5852a058ce0..1854850b4b89 100644
--- a/mm/mmap_lock.c
+++ b/mm/mmap_lock.c
@@ -156,14 +156,14 @@ static inline void put_memcg_path_buf(void)
 #define TRACE_MMAP_LOCK_EVENT(type, mm, ...)                                   \
 	do {                                                                   \
 		const char *memcg_path;                                        \
-		preempt_disable();                                             \
+		local_lock(&memcg_paths.lock);                                 \
 		memcg_path = get_mm_memcg_path(mm);                            \
 		trace_mmap_lock_##type(mm,                                     \
 				       memcg_path != NULL ? memcg_path : "",   \
 				       ##__VA_ARGS__);                         \
 		if (likely(memcg_path != NULL))                                \
 			put_memcg_path_buf();                                  \
-		preempt_enable();                                              \
+		local_unlock(&memcg_paths.lock);                               \
 	} while (0)
 
 #else /* !CONFIG_MEMCG */