KMEM_CACHE_CREATE

Section: (9)
Updated: 14 August 2003
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NAME

kmem_cache_create - Create a cache.  

SYNOPSIS

kmem_cache_t * kmem_cache_create (const char * name, size_t size, size_t offset, unsigned long flags, void (*ctor) void*, kmem_cache_t *, unsigned long, void (*dtor) void*, kmem_cache_t *, unsigned long);  

ARGUMENTS

name
A string which is used in /proc/slabinfo to identify this cache.
size
The size of objects to be created in this cache.
offset
The offset to use within the page.
flags
SLAB flags
ctor
A constructor for the objects.
dtor
A destructor for the objects.
 

DESCRIPTION

Returns a ptr to the cache on success, NULL on failure. Cannot be called within a int, but can be interrupted. The ctor is run when new pages are allocated by the cache and the dtor is run before the pages are handed back.

name must be valid until the cache is destroyed. This implies that the module calling this has to destroy the cache before getting unloaded.

The flags are

SLAB_POISON - Poison the slab with a known test pattern (a5a5a5a5) to catch references to uninitialised memory.

SLAB_RED_ZONE - Insert `Red' zones around the allocated memory to check for buffer overruns.

SLAB_NO_REAP - Don't automatically reap this cache when we're under memory pressure.

SLAB_HWCACHE_ALIGN - Align the objects in this cache to a hardware cacheline. This can be beneficial if you're counting cycles as closely as davem.  

ABOUT THIS DOCUMENT

This documentation was generated with kernel version 2.6.0.


 

Index

NAME
SYNOPSIS
ARGUMENTS
DESCRIPTION
ABOUT THIS DOCUMENT

This document was created by man2html, using the manual pages.
Time: 23:19:23 GMT, August 13, 2003