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-rw-r--r--mm/slob.c49
1 files changed, 9 insertions, 40 deletions
diff --git a/mm/slob.c b/mm/slob.c
index 74c3bb25f640..c85265d22e08 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -92,14 +92,6 @@ 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.
*/
#define SLOB_BREAK1 256
@@ -109,29 +101,6 @@ 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.
*/
static inline int slob_page_free(struct page *sp)
@@ -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;