diff options
author | Christoph Lameter <clameter@sgi.com> | 2008-04-14 18:51:34 +0300 |
---|---|---|
committer | Pekka Enberg <penberg@cs.helsinki.fi> | 2008-04-14 18:51:34 +0300 |
commit | 5b06c853ad447636e31d105e95c48ae9abb6bfb5 (patch) | |
tree | cf4d606b54659833a98a4b66c76ee3562bcd1062 | |
parent | 4097d6017576a5e138f442f5e3c393ad00d10f58 (diff) | |
download | kernel_samsung_smdk4412-5b06c853ad447636e31d105e95c48ae9abb6bfb5.zip kernel_samsung_smdk4412-5b06c853ad447636e31d105e95c48ae9abb6bfb5.tar.gz kernel_samsung_smdk4412-5b06c853ad447636e31d105e95c48ae9abb6bfb5.tar.bz2 |
slub: Deal with config variable dependencies
count_partial() is used by both slabinfo and the sysfs proc support. Move
the function directly before the beginning of the sysfs code so that it can
be easily found. Rework the preprocessor conditional to take into account
that slub sysfs support depends on CONFIG_SYSFS *and* CONFIG_SLUB_DEBUG.
Make CONFIG_SLUB_STATS depend on CONFIG_SLUB_DEBUG and CONFIG_SYSFS. There
is no point of keeping statistics if no one can restrive them.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
-rw-r--r-- | lib/Kconfig.debug | 2 | ||||
-rw-r--r-- | mm/slub.c | 30 |
2 files changed, 16 insertions, 16 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 0796c1a..eef557d 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -211,7 +211,7 @@ config SLUB_DEBUG_ON config SLUB_STATS default n bool "Enable SLUB performance statistics" - depends on SLUB + depends on SLUB && SLUB_DEBUG && SYSFS help SLUB statistics are useful to debug SLUBs allocation behavior in order find ways to optimize the allocator. This should never be @@ -2688,21 +2688,6 @@ void kfree(const void *x) } EXPORT_SYMBOL(kfree); -#if defined(CONFIG_SLUB_DEBUG) || defined(CONFIG_SLABINFO) -static unsigned long count_partial(struct kmem_cache_node *n) -{ - unsigned long flags; - unsigned long x = 0; - struct page *page; - - spin_lock_irqsave(&n->list_lock, flags); - list_for_each_entry(page, &n->partial, lru) - x += page->inuse; - spin_unlock_irqrestore(&n->list_lock, flags); - return x; -} -#endif - /* * kmem_cache_shrink removes empty slabs from the partial lists and sorts * the remaining slabs by the number of items in use. The slabs with the @@ -3181,6 +3166,21 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags, return slab_alloc(s, gfpflags, node, caller); } +#if (defined(CONFIG_SYSFS) && defined(CONFIG_SLUB_DEBUG)) || defined(CONFIG_SLABINFO) +static unsigned long count_partial(struct kmem_cache_node *n) +{ + unsigned long flags; + unsigned long x = 0; + struct page *page; + + spin_lock_irqsave(&n->list_lock, flags); + list_for_each_entry(page, &n->partial, lru) + x += page->inuse; + spin_unlock_irqrestore(&n->list_lock, flags); + return x; +} +#endif + #if defined(CONFIG_SYSFS) && defined(CONFIG_SLUB_DEBUG) static int validate_slab(struct kmem_cache *s, struct page *page, unsigned long *map) |