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| author | Marco Elver <elver@google.com> | 2021-07-15 06:26:34 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-07-15 19:13:49 +0200 |
| commit | 0d4a062af2cea33c2000b28420e8e2eb58b4fd0b (patch) | |
| tree | 83f1609e8cf968c7316fb588ba6ed14e4f3ea60b /mm/slab.h | |
| parent | Merge tag 'vboxsf-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/h... (diff) | |
| download | linux-0d4a062af2cea33c2000b28420e8e2eb58b4fd0b.tar.xz linux-0d4a062af2cea33c2000b28420e8e2eb58b4fd0b.zip | |
mm: move helper to check slub_debug_enabled
Move the helper to check slub_debug_enabled, so that we can confine the
use of #ifdef outside slub.c as well.
Link: https://lkml.kernel.org/r/20210705103229.8505-2-yee.lee@mediatek.com
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Yee Lee <yee.lee@mediatek.com>
Suggested-by: Matthew Wilcox <willy@infradead.org>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Chinwen Chang <chinwen.chang@mediatek.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Cc: Nicholas Tang <nicholas.tang@mediatek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/slab.h')
| -rw-r--r-- | mm/slab.h | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/mm/slab.h b/mm/slab.h index 67e06637ff2e..f997fd5e42c8 100644 --- a/mm/slab.h +++ b/mm/slab.h @@ -216,10 +216,18 @@ DECLARE_STATIC_KEY_FALSE(slub_debug_enabled); #endif extern void print_tracking(struct kmem_cache *s, void *object); long validate_slab_cache(struct kmem_cache *s); +static inline bool __slub_debug_enabled(void) +{ + return static_branch_unlikely(&slub_debug_enabled); +} #else static inline void print_tracking(struct kmem_cache *s, void *object) { } +static inline bool __slub_debug_enabled(void) +{ + return false; +} #endif /* @@ -229,11 +237,10 @@ static inline void print_tracking(struct kmem_cache *s, void *object) */ static inline bool kmem_cache_debug_flags(struct kmem_cache *s, slab_flags_t flags) { -#ifdef CONFIG_SLUB_DEBUG - VM_WARN_ON_ONCE(!(flags & SLAB_DEBUG_FLAGS)); - if (static_branch_unlikely(&slub_debug_enabled)) + if (IS_ENABLED(CONFIG_SLUB_DEBUG)) + VM_WARN_ON_ONCE(!(flags & SLAB_DEBUG_FLAGS)); + if (__slub_debug_enabled()) return s->flags & flags; -#endif return false; } |