xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branch 'slub-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm

Browse Source 
* 'slub-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm:
  SLUB: fix checkpatch warnings
  Use non atomic unlock
  SLUB: Support for performance statistics
  SLUB: Alternate fast paths using cmpxchg_local
  SLUB: Use unique end pointer for each slab page.
  SLUB: Deal with annoying gcc warning on kfree()
This commit is contained in:
Linus Torvalds
2008-02-07 18:22:29 -08:00
parent c8b6de16d9 3adbefee6f
commit c00f08d705
6 changed files with 457 additions and 63 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
include/linux/mm_types.h
View File

@@ -64,7 +64,10 @@ struct page {
#if NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS
spinlock_t ptl;
#endif
struct kmem_cache *slab; /* SLUB: Pointer to slab */
struct {
struct kmem_cache *slab; /* SLUB: Pointer to slab */
void *end; /* SLUB: end marker */
};
struct page *first_page; /* Compound tail pages */
};
union {

23
include/linux/slub_def.h
View File

@@ -11,12 +11,35 @@
#include <linux/workqueue.h>
#include <linux/kobject.h>
enum stat_item {
ALLOC_FASTPATH, /* Allocation from cpu slab */
ALLOC_SLOWPATH, /* Allocation by getting a new cpu slab */
FREE_FASTPATH, /* Free to cpu slub */
FREE_SLOWPATH, /* Freeing not to cpu slab */
FREE_FROZEN, /* Freeing to frozen slab */
FREE_ADD_PARTIAL, /* Freeing moves slab to partial list */
FREE_REMOVE_PARTIAL, /* Freeing removes last object */
ALLOC_FROM_PARTIAL, /* Cpu slab acquired from partial list */
ALLOC_SLAB, /* Cpu slab acquired from page allocator */
ALLOC_REFILL, /* Refill cpu slab from slab freelist */
FREE_SLAB, /* Slab freed to the page allocator */
CPUSLAB_FLUSH, /* Abandoning of the cpu slab */
DEACTIVATE_FULL, /* Cpu slab was full when deactivated */
DEACTIVATE_EMPTY, /* Cpu slab was empty when deactivated */
DEACTIVATE_TO_HEAD, /* Cpu slab was moved to the head of partials */
DEACTIVATE_TO_TAIL, /* Cpu slab was moved to the tail of partials */
DEACTIVATE_REMOTE_FREES,/* Slab contained remotely freed objects */
NR_SLUB_STAT_ITEMS };
struct kmem_cache_cpu {
void **freelist; /* Pointer to first free per cpu object */
struct page *page; /* The slab from which we are allocating */
int node; /* The node of the page (or -1 for debug) */
unsigned int offset; /* Freepointer offset (in word units) */
unsigned int objsize; /* Size of an object (from kmem_cache) */
#ifdef CONFIG_SLUB_STATS
unsigned stat[NR_SLUB_STAT_ITEMS];
#endif
};
struct kmem_cache_node {