3d14c5d2b6
This factors out protocol and low-level storage parts of ceph into a separate libceph module living in net/ceph and include/linux/ceph. This is mostly a matter of moving files around. However, a few key pieces of the interface change as well: - ceph_client becomes ceph_fs_client and ceph_client, where the latter captures the mon and osd clients, and the fs_client gets the mds client and file system specific pieces. - Mount option parsing and debugfs setup is correspondingly broken into two pieces. - The mon client gets a generic handler callback for otherwise unknown messages (mds map, in this case). - The basic supported/required feature bits can be expanded (and are by ceph_fs_client). No functional change, aside from some subtle error handling cases that got cleaned up in the refactoring process. Signed-off-by: Sage Weil <sage@newdream.net>
26 lines
692 B
C
26 lines
692 B
C
#ifndef _FS_CEPH_MSGPOOL
|
|
#define _FS_CEPH_MSGPOOL
|
|
|
|
#include <linux/mempool.h>
|
|
#include "messenger.h"
|
|
|
|
/*
|
|
* we use memory pools for preallocating messages we may receive, to
|
|
* avoid unexpected OOM conditions.
|
|
*/
|
|
struct ceph_msgpool {
|
|
const char *name;
|
|
mempool_t *pool;
|
|
int front_len; /* preallocated payload size */
|
|
};
|
|
|
|
extern int ceph_msgpool_init(struct ceph_msgpool *pool,
|
|
int front_len, int size, bool blocking,
|
|
const char *name);
|
|
extern void ceph_msgpool_destroy(struct ceph_msgpool *pool);
|
|
extern struct ceph_msg *ceph_msgpool_get(struct ceph_msgpool *,
|
|
int front_len);
|
|
extern void ceph_msgpool_put(struct ceph_msgpool *, struct ceph_msg *);
|
|
|
|
#endif
|