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1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef _FS_CEPH_MSGPOOL3#define _FS_CEPH_MSGPOOL4 5#include <linux/mempool.h>6 7/*8 * we use memory pools for preallocating messages we may receive, to9 * 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 int max_data_items;17};18 19int ceph_msgpool_init(struct ceph_msgpool *pool, int type,20 int front_len, int max_data_items, int size,21 const char *name);22extern void ceph_msgpool_destroy(struct ceph_msgpool *pool);23struct ceph_msg *ceph_msgpool_get(struct ceph_msgpool *pool, int front_len,24 int max_data_items);25extern void ceph_msgpool_put(struct ceph_msgpool *, struct ceph_msg *);26 27#endif28