Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _FS_CEPH_MSGPOOL
3#define _FS_CEPH_MSGPOOL
4
5#include <linux/mempool.h>
6
7/*
8 * we use memory pools for preallocating messages we may receive, to
9 * avoid unexpected OOM conditions.
10 */
11struct ceph_msgpool {
12 const char *name;
13 mempool_t *pool;
14 int type; /* preallocated message type */
15 int front_len; /* preallocated payload size */
16};
17
18extern int ceph_msgpool_init(struct ceph_msgpool *pool, int type,
19 int front_len, int size, bool blocking,
20 const char *name);
21extern void ceph_msgpool_destroy(struct ceph_msgpool *pool);
22extern struct ceph_msg *ceph_msgpool_get(struct ceph_msgpool *,
23 int front_len);
24extern void ceph_msgpool_put(struct ceph_msgpool *, struct ceph_msg *);
25
26#endif