diff options
| -rw-r--r-- | arch/Kconfig | 3 | ||||
| -rw-r--r-- | arch/x86/Kconfig | 1 | ||||
| -rw-r--r-- | arch/x86/Kconfig.cpu | 3 | ||||
| -rw-r--r-- | arch/x86/um/Kconfig | 4 | ||||
| -rw-r--r-- | mm/slub.c | 9 |
5 files changed, 10 insertions, 10 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 22182a8cc62..4f55c736be1 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -196,4 +196,7 @@ config HAVE_ALIGNED_STRUCT_PAGE config HAVE_CMPXCHG_LOCAL bool +config HAVE_CMPXCHG_DOUBLE + bool + source "kernel/gcov/Kconfig" diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 59717fd17bc..6c14ecd851d 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -62,6 +62,7 @@ config X86 select ANON_INODES select HAVE_ALIGNED_STRUCT_PAGE if SLUB && !M386 select HAVE_CMPXCHG_LOCAL if !M386 + select HAVE_CMPXCHG_DOUBLE select HAVE_ARCH_KMEMCHECK select HAVE_USER_RETURN_NOTIFIER select ARCH_BINFMT_ELF_RANDOMIZE_PIE diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu index 99d2ab8b779..3c57033e221 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -309,9 +309,6 @@ config X86_INTERNODE_CACHE_SHIFT config X86_CMPXCHG def_bool X86_64 || (X86_32 && !M386) -config CMPXCHG_DOUBLE - def_bool y - config X86_L1_CACHE_SHIFT int default "7" if MPENTIUM4 || MPSC diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig index a62bfc66239..b2b54d2edf5 100644 --- a/arch/x86/um/Kconfig +++ b/arch/x86/um/Kconfig @@ -6,10 +6,6 @@ menu "UML-specific options" menu "Host processor type and features" -config CMPXCHG_DOUBLE - bool - default n - source "arch/x86/Kconfig.cpu" endmenu diff --git a/mm/slub.c b/mm/slub.c index 72aa8413460..4907563ef7f 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -366,7 +366,8 @@ static inline bool __cmpxchg_double_slab(struct kmem_cache *s, struct page *page const char *n) { VM_BUG_ON(!irqs_disabled()); -#if defined(CONFIG_CMPXCHG_DOUBLE) && defined(CONFIG_HAVE_ALIGNED_STRUCT_PAGE) +#if defined(CONFIG_HAVE_CMPXCHG_DOUBLE) && \ + defined(CONFIG_HAVE_ALIGNED_STRUCT_PAGE) if (s->flags & __CMPXCHG_DOUBLE) { if (cmpxchg_double(&page->freelist, &page->counters, freelist_old, counters_old, @@ -400,7 +401,8 @@ static inline bool cmpxchg_double_slab(struct kmem_cache *s, struct page *page, void *freelist_new, unsigned long counters_new, const char *n) { -#if defined(CONFIG_CMPXCHG_DOUBLE) && defined(CONFIG_HAVE_ALIGNED_STRUCT_PAGE) +#if defined(CONFIG_HAVE_CMPXCHG_DOUBLE) && \ + defined(CONFIG_HAVE_ALIGNED_STRUCT_PAGE) if (s->flags & __CMPXCHG_DOUBLE) { if (cmpxchg_double(&page->freelist, &page->counters, freelist_old, counters_old, @@ -3014,7 +3016,8 @@ static int kmem_cache_open(struct kmem_cache *s, } } -#if defined(CONFIG_CMPXCHG_DOUBLE) && defined(CONFIG_HAVE_ALIGNED_STRUCT_PAGE) +#if defined(CONFIG_HAVE_CMPXCHG_DOUBLE) && \ + defined(CONFIG_HAVE_ALIGNED_STRUCT_PAGE) if (system_has_cmpxchg_double() && (s->flags & SLAB_DEBUG_FLAGS) == 0) /* Enable fast mode */ s->flags |= __CMPXCHG_DOUBLE; |