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slob: Remove various small accessors 

Those have become so simple that they are no longer needed.

Reviewed-by: Joonsoo Kim <js1304@gmail.com>
Acked-by: David Rientjes <rientjes@google.com>
signed-off-by: Christoph Lameter <cl@linux.com>

Signed-off-by: Pekka Enberg <penberg@kernel.org>
This commit is contained in:
Christoph Lameter 2012-06-13 10:24:54 -05:00 committed by Pekka Enberg
parent 690d577739
commit b5568280c9
1 changed files with 9 additions and 40 deletions
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49
mm/slob.c
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@ -91,14 +91,6 @@ struct slob_block {
};
typedef struct slob_block slob_t;
/*
* free_slob_page: call before a slob_page is returned to the page allocator.
*/
static inline void free_slob_page(struct page *sp)
{
reset_page_mapcount(sp);
}
/*
* All partially free slob pages go on these lists.
*/
@ -108,29 +100,6 @@ static LIST_HEAD(free_slob_small);
static LIST_HEAD(free_slob_medium);
static LIST_HEAD(free_slob_large);
/*
* is_slob_page: True for all slob pages (false for bigblock pages)
*/
static inline int is_slob_page(struct page *sp)
{
return PageSlab(sp);
}
static inline void set_slob_page(struct page *sp)
{
__SetPageSlab(sp);
}
static inline void clear_slob_page(struct page *sp)
{
__ClearPageSlab(sp);
}
static inline struct page *slob_page(const void *addr)
{
return virt_to_page(addr);
}
/*
* slob_page_free: true for pages on free_slob_pages list.
*/
@ -347,8 +316,8 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node)
b = slob_new_pages(gfp & ~__GFP_ZERO, 0, node);
if (!b)
return NULL;
sp = slob_page(b);
set_slob_page(sp);
sp = virt_to_page(b);
__SetPageSlab(sp);
spin_lock_irqsave(&slob_lock, flags);
sp->units = SLOB_UNITS(PAGE_SIZE);
@ -380,7 +349,7 @@ static void slob_free(void *block, int size)
return;
BUG_ON(!size);
sp = slob_page(block);
sp = virt_to_page(block);
units = SLOB_UNITS(size);
spin_lock_irqsave(&slob_lock, flags);
@ -390,8 +359,8 @@ static void slob_free(void *block, int size)
if (slob_page_free(sp))
clear_slob_page_free(sp);
spin_unlock_irqrestore(&slob_lock, flags);
clear_slob_page(sp);
free_slob_page(sp);
__ClearPageSlab(sp);
reset_page_mapcount(sp);
slob_free_pages(b, 0);
return;
}
@ -508,8 +477,8 @@ void kfree(const void *block)
return;
kmemleak_free(block);
sp = slob_page(block);
if (is_slob_page(sp)) {
sp = virt_to_page(block);
if (PageSlab(sp)) {
int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
unsigned int *m = (unsigned int *)(block - align);
slob_free(m, *m + align);
@ -527,8 +496,8 @@ size_t ksize(const void *block)
if (unlikely(block == ZERO_SIZE_PTR))
return 0;
sp = slob_page(block);
if (is_slob_page(sp)) {
sp = virt_to_page(block);
if (PageSlab(sp)) {
int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
unsigned int *m = (unsigned int *)(block - align);
return SLOB_UNITS(*m) * SLOB_UNIT;