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ceph: use kref for ceph_msg

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Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil
2009-12-07 15:55:05 -08:00
parent 415e49a9c4
commit c2e552e76e
3 changed files with 25 additions and 33 deletions
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13
fs/ceph/messenger.h
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@@ -1,6 +1,7 @@
#ifndef __FS_CEPH_MESSENGER_H
#define __FS_CEPH_MESSENGER_H
#include <linux/kref.h>
#include <linux/mutex.h>
#include <linux/net.h>
#include <linux/radix-tree.h>
@@ -85,7 +86,7 @@ struct ceph_msg {
struct page **pages; /* data payload. NOT OWNER. */
unsigned nr_pages; /* size of page array */
struct list_head list_head;
atomic_t nref;
struct kref kref;
bool front_is_vmalloc;
bool more_to_follow;
int front_max;
@@ -243,11 +244,13 @@ extern int ceph_alloc_middle(struct ceph_connection *con, struct ceph_msg *msg);
static inline struct ceph_msg *ceph_msg_get(struct ceph_msg *msg)
{
dout("ceph_msg_get %p %d -> %d\n", msg, atomic_read(&msg->nref),
atomic_read(&msg->nref)+1);
atomic_inc(&msg->nref);
kref_get(&msg->kref);
return msg;
}
extern void ceph_msg_put(struct ceph_msg *msg);
extern void ceph_msg_last_put(struct kref *kref);
static inline void ceph_msg_put(struct ceph_msg *msg)
{
kref_put(&msg->kref, ceph_msg_last_put);
}
#endif