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libceph: create messenger with client

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This simplifies the init/shutdown paths, and makes client->msgr available
during the rest of the setup process.

Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil 2011-08-09 09:41:59 -07:00
parent 6a8ea4706a
commit 6ab00d465a
4 changed files with 33 additions and 27 deletions
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2
drivers/block/rbd.c
View File

@ -260,7 +260,7 @@ static struct rbd_client *rbd_client_create(struct ceph_options *opt,
kref_init(&rbdc->kref);
INIT_LIST_HEAD(&rbdc->node);
rbdc->client = ceph_create_client(opt, rbdc);
rbdc->client = ceph_create_client(opt, rbdc, 0, 0);
if (IS_ERR(rbdc->client))
goto out_rbdc;
opt = NULL; /* Now rbdc->client is responsible for opt */

9
fs/ceph/super.c
View File

@ -430,20 +430,23 @@ struct ceph_fs_client *create_fs_client(struct ceph_mount_options *fsopt,
struct ceph_options *opt)
{
struct ceph_fs_client *fsc;
const unsigned supported_features =
CEPH_FEATURE_FLOCK |
CEPH_FEATURE_DIRLAYOUTHASH;
const unsigned required_features = 0;
int err = -ENOMEM;
fsc = kzalloc(sizeof(*fsc), GFP_KERNEL);
if (!fsc)
return ERR_PTR(-ENOMEM);
fsc->client = ceph_create_client(opt, fsc);
fsc->client = ceph_create_client(opt, fsc, supported_features,
required_features);
if (IS_ERR(fsc->client)) {
err = PTR_ERR(fsc->client);
goto fail;
}
fsc->client->extra_mon_dispatch = extra_mon_dispatch;
fsc->client->supported_features |= CEPH_FEATURE_FLOCK |
CEPH_FEATURE_DIRLAYOUTHASH;
fsc->client->monc.want_mdsmap = 1;
fsc->mount_options = fsopt;

4
include/linux/ceph/libceph.h
View File

@ -215,7 +215,9 @@ extern void ceph_destroy_options(struct ceph_options *opt);
extern int ceph_compare_options(struct ceph_options *new_opt,
struct ceph_client *client);
extern struct ceph_client *ceph_create_client(struct ceph_options *opt,
void *private);
void *private,
unsigned supported_features,
unsigned required_features);
extern u64 ceph_client_id(struct ceph_client *client);
extern void ceph_destroy_client(struct ceph_client *client);
extern int __ceph_open_session(struct ceph_client *client,

45
net/ceph/ceph_common.c
View File

@ -432,9 +432,12 @@ EXPORT_SYMBOL(ceph_client_id);
/*
* create a fresh client instance
*/
struct ceph_client *ceph_create_client(struct ceph_options *opt, void *private)
struct ceph_client *ceph_create_client(struct ceph_options *opt, void *private,
unsigned supported_features,
unsigned required_features)
{
struct ceph_client *client;
struct ceph_entity_addr *myaddr = NULL;
int err = -ENOMEM;
client = kzalloc(sizeof(*client), GFP_KERNEL);
@ -449,15 +452,27 @@ struct ceph_client *ceph_create_client(struct ceph_options *opt, void *private)
client->auth_err = 0;
client->extra_mon_dispatch = NULL;
client->supported_features = CEPH_FEATURE_SUPPORTED_DEFAULT;
client->required_features = CEPH_FEATURE_REQUIRED_DEFAULT;
client->supported_features = CEPH_FEATURE_SUPPORTED_DEFAULT |
supported_features;
client->required_features = CEPH_FEATURE_REQUIRED_DEFAULT |
required_features;
client->msgr = NULL;
/* 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);
/* subsystems */
err = ceph_monc_init(&client->monc, client);
if (err < 0)
goto fail;
goto fail_msgr;
err = ceph_osdc_init(&client->osdc, client);
if (err < 0)
goto fail_monc;
@ -466,6 +481,8 @@ 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);
@ -490,8 +507,7 @@ void ceph_destroy_client(struct ceph_client *client)
ceph_debugfs_client_cleanup(client);
if (client->msgr)
ceph_messenger_destroy(client->msgr);
ceph_messenger_destroy(client->msgr);
ceph_destroy_options(client->options);
@ -514,24 +530,9 @@ static int have_mon_and_osd_map(struct ceph_client *client)
*/
int __ceph_open_session(struct ceph_client *client, unsigned long started)
{
struct ceph_entity_addr *myaddr = NULL;
int err;
unsigned long timeout = client->options->mount_timeout * HZ;
/* initialize the messenger */
if (client->msgr == NULL) {
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)) {
client->msgr = NULL;
return PTR_ERR(client->msgr);
}
client->msgr->nocrc = ceph_test_opt(client, NOCRC);
}
/* open session, and wait for mon and osd maps */
err = ceph_monc_open_session(&client->monc);
if (err < 0)