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libceph: embed ceph messenger structure in ceph_client 

A ceph client has a pointer to a ceph messenger structure in it.
There is always exactly one ceph messenger for a ceph client, so
there is no need to allocate it separate from the ceph client
structure.

Switch the ceph_client structure to embed its ceph_messenger
structure.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Yehuda Sadeh <yehuda@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
This commit is contained in:
Alex Elder 2012-05-26 23:26:43 -05:00 committed by Alex Elder
parent e22004235a
commit 15d9882c33
7 changed files with 26 additions and 45 deletions
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2
fs/ceph/mds_client.c
View File

@ -394,7 +394,7 @@ static struct ceph_mds_session *register_session(struct ceph_mds_client *mdsc,
s->s_seq = 0;
mutex_init(&s->s_mutex);
ceph_con_init(mdsc->fsc->client->msgr, &s->s_con);
ceph_con_init(&mdsc->fsc->client->msgr, &s->s_con);
s->s_con.private = s;
s->s_con.ops = &mds_con_ops;
s->s_con.peer_name.type = CEPH_ENTITY_TYPE_MDS;

2
include/linux/ceph/libceph.h
View File

@ -131,7 +131,7 @@ struct ceph_client {
u32 supported_features;
u32 required_features;
struct ceph_messenger *msgr; /* messenger instance */
struct ceph_messenger msgr; /* messenger instance */
struct ceph_mon_client monc;
struct ceph_osd_client osdc;

9
include/linux/ceph/messenger.h
View File

@ -211,10 +211,11 @@ extern int ceph_msgr_init(void);
extern void ceph_msgr_exit(void);
extern void ceph_msgr_flush(void);
extern struct ceph_messenger *ceph_messenger_create(
struct ceph_entity_addr *myaddr,
u32 features, u32 required);
extern void ceph_messenger_destroy(struct ceph_messenger *);
extern void ceph_messenger_init(struct ceph_messenger *msgr,
struct ceph_entity_addr *myaddr,
u32 supported_features,
u32 required_features,
bool nocrc);
extern void ceph_con_init(struct ceph_messenger *msgr,
struct ceph_connection *con);

18
net/ceph/ceph_common.c
View File

@ -468,19 +468,15 @@ struct ceph_client *ceph_create_client(struct ceph_options *opt, void *private,
/* msgr */
if (ceph_test_opt(client, MYIP))
myaddr = &client->options->my_addr;
client->msgr = ceph_messenger_create(myaddr,
client->supported_features,
client->required_features);
if (IS_ERR(client->msgr)) {
err = PTR_ERR(client->msgr);
goto fail;
}
client->msgr->nocrc = ceph_test_opt(client, NOCRC);
ceph_messenger_init(&client->msgr, myaddr,
client->supported_features,
client->required_features,
ceph_test_opt(client, NOCRC));
/* subsystems */
err = ceph_monc_init(&client->monc, client);
if (err < 0)
goto fail_msgr;
goto fail;
err = ceph_osdc_init(&client->osdc, client);
if (err < 0)
goto fail_monc;
@ -489,8 +485,6 @@ struct ceph_client *ceph_create_client(struct ceph_options *opt, void *private,
fail_monc:
ceph_monc_stop(&client->monc);
fail_msgr:
ceph_messenger_destroy(client->msgr);
fail:
kfree(client);
return ERR_PTR(err);
@ -515,8 +509,6 @@ void ceph_destroy_client(struct ceph_client *client)
ceph_debugfs_client_cleanup(client);
ceph_messenger_destroy(client->msgr);
ceph_destroy_options(client->options);
kfree(client);

30
net/ceph/messenger.c
View File

@ -2245,18 +2245,14 @@ out:
/*
* create a new messenger instance
* initialize a new messenger instance
*/
struct ceph_messenger *ceph_messenger_create(struct ceph_entity_addr *myaddr,
u32 supported_features,
u32 required_features)
void ceph_messenger_init(struct ceph_messenger *msgr,
struct ceph_entity_addr *myaddr,
u32 supported_features,
u32 required_features,
bool nocrc)
{
struct ceph_messenger *msgr;
msgr = kzalloc(sizeof(*msgr), GFP_KERNEL);
if (msgr == NULL)
return ERR_PTR(-ENOMEM);
msgr->supported_features = supported_features;
msgr->required_features = required_features;
@ -2269,19 +2265,11 @@ struct ceph_messenger *ceph_messenger_create(struct ceph_entity_addr *myaddr,
msgr->inst.addr.type = 0;
get_random_bytes(&msgr->inst.addr.nonce, sizeof(msgr->inst.addr.nonce));
encode_my_addr(msgr);
msgr->nocrc = nocrc;
dout("messenger_create %p\n", msgr);
return msgr;
dout("%s %p\n", __func__, msgr);
}
EXPORT_SYMBOL(ceph_messenger_create);
void ceph_messenger_destroy(struct ceph_messenger *msgr)
{
dout("destroy %p\n", msgr);
kfree(msgr);
dout("destroyed messenger %p\n", msgr);
}
EXPORT_SYMBOL(ceph_messenger_destroy);
EXPORT_SYMBOL(ceph_messenger_init);
static void clear_standby(struct ceph_connection *con)
{

6
net/ceph/mon_client.c
View File

@ -763,7 +763,7 @@ int ceph_monc_init(struct ceph_mon_client *monc, struct ceph_client *cl)
monc->con = kmalloc(sizeof(*monc->con), GFP_KERNEL);
if (!monc->con)
goto out_monmap;
ceph_con_init(monc->client->msgr, monc->con);
ceph_con_init(&monc->client->msgr, monc->con);
monc->con->private = monc;
monc->con->ops = &mon_con_ops;
@ -880,8 +880,8 @@ static void handle_auth_reply(struct ceph_mon_client *monc,
} else if (!was_auth && monc->auth->ops->is_authenticated(monc->auth)) {
dout("authenticated, starting session\n");
monc->client->msgr->inst.name.type = CEPH_ENTITY_TYPE_CLIENT;
monc->client->msgr->inst.name.num =
monc->client->msgr.inst.name.type = CEPH_ENTITY_TYPE_CLIENT;
monc->client->msgr.inst.name.num =
cpu_to_le64(monc->auth->global_id);
__send_subscribe(monc);

4
net/ceph/osd_client.c
View File

@ -639,7 +639,7 @@ static struct ceph_osd *create_osd(struct ceph_osd_client *osdc)
INIT_LIST_HEAD(&osd->o_osd_lru);
osd->o_incarnation = 1;
ceph_con_init(osdc->client->msgr, &osd->o_con);
ceph_con_init(&osdc->client->msgr, &osd->o_con);
osd->o_con.private = osd;
osd->o_con.ops = &osd_con_ops;
osd->o_con.peer_name.type = CEPH_ENTITY_TYPE_OSD;
@ -1391,7 +1391,7 @@ void ceph_osdc_handle_map(struct ceph_osd_client *osdc, struct ceph_msg *msg)
epoch, maplen);
newmap = osdmap_apply_incremental(&p, next,
osdc->osdmap,
osdc->client->msgr);
&osdc->client->msgr);
if (IS_ERR(newmap)) {
err = PTR_ERR(newmap);
goto bad;