https://github.com/torvalds/linux
- HEAD
- refs/heads/arm64-uaccess
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/certifi-2024.7.4
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/idna-3.7
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/requests-2.32.2
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/setuptools-70.0.0
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/urllib3-2.2.2
- refs/heads/master
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Tip revision: 8bbde0e6d52265158ee9625f383500c1a7d09ba9 authored by Linus Torvalds on 19 April 2006, 03:00:49 UTC
Linux v2.6.17-rc2
Linux v2.6.17-rc2
Tip revision: 8bbde0e
genalloc.h
/*
* Basic general purpose allocator for managing special purpose memory
* not managed by the regular kmalloc/kfree interface.
* Uses for this includes on-device special memory, uncached memory
* etc.
*
* This code is based on the buddy allocator found in the sym53c8xx_2
* driver, adapted for general purpose use.
*
* This source code is licensed under the GNU General Public License,
* Version 2. See the file COPYING for more details.
*/
#include <linux/spinlock.h>
#define ALLOC_MIN_SHIFT 5 /* 32 bytes minimum */
/*
* Link between free memory chunks of a given size.
*/
struct gen_pool_link {
struct gen_pool_link *next;
};
/*
* Memory pool descriptor.
*/
struct gen_pool {
spinlock_t lock;
unsigned long (*get_new_chunk)(struct gen_pool *);
struct gen_pool *next;
struct gen_pool_link *h;
unsigned long private;
int max_chunk_shift;
};
unsigned long gen_pool_alloc(struct gen_pool *poolp, int size);
void gen_pool_free(struct gen_pool *mp, unsigned long ptr, int size);
struct gen_pool *gen_pool_create(int nr_chunks, int max_chunk_shift,
unsigned long (*fp)(struct gen_pool *),
unsigned long data);