diff options
Diffstat (limited to 'mm/slub.c')
| -rw-r--r-- | mm/slub.c | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/mm/slub.c b/mm/slub.c index 6832c4eab104..54c0876b43d5 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -374,7 +374,7 @@ static inline bool __cmpxchg_double_slab(struct kmem_cache *s, struct page *page if (cmpxchg_double(&page->freelist, &page->counters, freelist_old, counters_old, freelist_new, counters_new)) - return 1; + return true; } else #endif { @@ -384,7 +384,7 @@ static inline bool __cmpxchg_double_slab(struct kmem_cache *s, struct page *page page->freelist = freelist_new; set_page_slub_counters(page, counters_new); slab_unlock(page); - return 1; + return true; } slab_unlock(page); } @@ -396,7 +396,7 @@ static inline bool __cmpxchg_double_slab(struct kmem_cache *s, struct page *page pr_info("%s %s: cmpxchg double redo ", n, s->name); #endif - return 0; + return false; } static inline bool cmpxchg_double_slab(struct kmem_cache *s, struct page *page, @@ -410,7 +410,7 @@ static inline bool cmpxchg_double_slab(struct kmem_cache *s, struct page *page, if (cmpxchg_double(&page->freelist, &page->counters, freelist_old, counters_old, freelist_new, counters_new)) - return 1; + return true; } else #endif { @@ -424,7 +424,7 @@ static inline bool cmpxchg_double_slab(struct kmem_cache *s, struct page *page, set_page_slub_counters(page, counters_new); slab_unlock(page); local_irq_restore(flags); - return 1; + return true; } slab_unlock(page); local_irq_restore(flags); @@ -437,7 +437,7 @@ static inline bool cmpxchg_double_slab(struct kmem_cache *s, struct page *page, pr_info("%s %s: cmpxchg double redo ", n, s->name); #endif - return 0; + return false; } #ifdef CONFIG_SLUB_DEBUG @@ -1137,15 +1137,6 @@ static int __init setup_slub_debug(char *str) */ goto check_slabs; - if (tolower(*str) == 'o') { - /* - * Avoid enabling debugging on caches if its minimum order - * would increase as a result. - */ - disable_higher_order_debug = 1; - goto out; - } - slub_debug = 0; if (*str == '-') /* @@ -1176,6 +1167,13 @@ static int __init setup_slub_debug(char *str) case 'a': slub_debug |= SLAB_FAILSLAB; break; + case 'o': + /* + * Avoid enabling debugging on caches if its minimum + * order would increase as a result. + */ + disable_higher_order_debug = 1; + break; default: pr_err("slub_debug option '%c' unknown. skipped\n", *str); @@ -2449,7 +2447,8 @@ redo: do { tid = this_cpu_read(s->cpu_slab->tid); c = raw_cpu_ptr(s->cpu_slab); - } while (IS_ENABLED(CONFIG_PREEMPT) && unlikely(tid != c->tid)); + } while (IS_ENABLED(CONFIG_PREEMPT) && + unlikely(tid != READ_ONCE(c->tid))); /* * Irqless object alloc/free algorithm used here depends on sequence @@ -2718,7 +2717,8 @@ redo: do { tid = this_cpu_read(s->cpu_slab->tid); c = raw_cpu_ptr(s->cpu_slab); - } while (IS_ENABLED(CONFIG_PREEMPT) && unlikely(tid != c->tid)); + } while (IS_ENABLED(CONFIG_PREEMPT) && + unlikely(tid != READ_ONCE(c->tid))); /* Same with comment on barrier() in slab_alloc_node() */ barrier(); @@ -4277,7 +4277,7 @@ static ssize_t show_slab_objects(struct kmem_cache *s, int node; struct page *page; - page = ACCESS_ONCE(c->page); + page = READ_ONCE(c->page); if (!page) continue; @@ -4292,7 +4292,7 @@ static ssize_t show_slab_objects(struct kmem_cache *s, total += x; nodes[node] += x; - page = ACCESS_ONCE(c->partial); + page = READ_ONCE(c->partial); if (page) { node = page_to_nid(page); if (flags & SO_TOTAL) |