.\" This documentation was generated from the book titled "The Linux Kernel API", which is part of the Linux kernel source. .\" .\" This documentation comes with the following legal notice: .\" .\" This documentation is free software; you can redistribute .\" it and/or modify it under the terms of the GNU General Public .\" License as published by the Free Software Foundation; either .\" version 2 of the License, or (at your option) any later .\" version. .\" .\" This program is distributed in the hope that it will be .\" useful, but WITHOUT ANY WARRANTY; without even the implied .\" warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. .\" See the GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public .\" License along with this program; if not, write to the Free .\" Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, .\" MA 02111-1307 USA .\" .\" For more details see the file COPYING in the source .\" distribution of Linux. .\" .\" For comments on the formatting of this manpage, please contact Michael Still .\" This manpage has been automatically generated by docbook2man .\" from a DocBook document. This tool can be found at: .\" .\" Please send any bug reports, improvements, comments, patches, .\" etc. to Steve Cheng . .TH "KMEM_CACHE_CREATE" "9" "09 April 2004" "" "" .SH NAME kmem_cache_create \- Create a cache. .SH SYNOPSIS .sp \fB .sp kmem_cache_t * kmem_cache_create (const char * \fIname\fB, size_t \fIsize\fB, size_t \fIoffset\fB, unsigned long \fIflags\fB, void (*\fIctor\fB) void*, kmem_cache_t *, unsigned long, void (*\fIdtor\fB) void*, kmem_cache_t *, unsigned long); \fR .SH "ARGUMENTS" .TP \fB\fIname\fB\fR A string which is used in /proc/slabinfo to identify this cache. .TP \fB\fIsize\fB\fR The size of objects to be created in this cache. .TP \fB\fIoffset\fB\fR The offset to use within the page. .TP \fB\fIflags\fB\fR SLAB flags .TP \fB\fIctor\fB\fR A constructor for the objects. .TP \fB\fIdtor\fB\fR A destructor for the objects. .SH "DESCRIPTION" .PP Returns a ptr to the cache on success, NULL on failure. Cannot be called within a int, but can be interrupted. The \fIctor\fR is run when new pages are allocated by the cache and the \fIdtor\fR is run before the pages are handed back. .PP \fIname\fR must be valid until the cache is destroyed. This implies that the module calling this has to destroy the cache before getting unloaded. .PP The flags are .PP SLAB_POISON - Poison the slab with a known test pattern (a5a5a5a5) to catch references to uninitialised memory. .PP SLAB_RED_ZONE - Insert `Red' zones around the allocated memory to check for buffer overruns. .PP SLAB_NO_REAP - Don't automatically reap this cache when we're under memory pressure. .PP 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. .SH "ABOUT THIS DOCUMENT" .PP This documentation was generated with kernel version 2.6.0.