* SLUB: Comment kmem_cache_cpu structure
@ 2007-10-30 18:54 Christoph Lameter
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From: Christoph Lameter @ 2007-10-30 18:54 UTC (permalink / raw)
To: akpm; +Cc: linux-mm
Add some comments explaining the fields of the kmem_cache_cpu structure.
Signed-off-by: Chrsitoph Lameter <clameter@sgi.com>
Index: linux-2.6/include/linux/slub_def.h
===================================================================
--- linux-2.6.orig/include/linux/slub_def.h 2007-10-30 11:51:20.000000000 -0700
+++ linux-2.6/include/linux/slub_def.h 2007-10-30 11:53:48.000000000 -0700
@@ -12,12 +12,12 @@
#include <linux/kobject.h>
struct kmem_cache_cpu {
- void **freelist;
- struct page *page;
- int node;
- unsigned int offset;
- unsigned int objsize;
- unsigned int objects;
+ 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) */
+ unsigned int objects; /* Objects per slab (from kmem_cache) */
};
struct kmem_cache_node {
--
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