ceph: fix debugfs entry, simplify fsid checks
We may first learn our fsid from any of the mon, osd, or mds maps
(whichever the monitor sends first). Consolidate checks in a single
helper. Initialize the client debugfs entry then, since we need the
fsid (and global_id) for the directory name.
Also remove dead mount code.
Signed-off-by: Sage Weil <sage@newdream.net>
diff --git a/fs/ceph/mon_client.c b/fs/ceph/mon_client.c
index 017d5ae..b742b3b 100644
--- a/fs/ceph/mon_client.c
+++ b/fs/ceph/mon_client.c
@@ -320,89 +320,12 @@
return 0;
}
-#if 0
-
/*
* The monitor responds with mount ack indicate mount success. The
* included client ticket allows the client to talk to MDSs and OSDs.
*/
-static void handle_mount_ack(struct ceph_mon_client *monc, struct ceph_msg *msg)
-{
- struct ceph_client *client = monc->client;
- struct ceph_monmap *monmap = NULL, *old = monc->monmap;
- void *p, *end;
- s32 result;
- u32 len;
- s64 cnum;
- int err = -EINVAL;
-
- if (client->whoami >= 0) {
- dout("handle_mount_ack - already mounted\n");
- return;
- }
-
- mutex_lock(&monc->mutex);
-
- dout("handle_mount_ack\n");
- p = msg->front.iov_base;
- end = p + msg->front.iov_len;
-
- ceph_decode_64_safe(&p, end, cnum, bad);
- ceph_decode_32_safe(&p, end, result, bad);
- ceph_decode_32_safe(&p, end, len, bad);
- if (result) {
- pr_err("mount denied: %.*s (%d)\n", len, (char *)p,
- result);
- err = result;
- goto out;
- }
- p += len;
-
- ceph_decode_32_safe(&p, end, len, bad);
- ceph_decode_need(&p, end, len, bad);
- monmap = ceph_monmap_decode(p, p + len);
- if (IS_ERR(monmap)) {
- pr_err("problem decoding monmap, %d\n",
- (int)PTR_ERR(monmap));
- err = -EINVAL;
- goto out;
- }
- p += len;
-
- client->monc.monmap = monmap;
- kfree(old);
-
- client->signed_ticket = NULL;
- client->signed_ticket_len = 0;
-
- monc->want_mount = false;
-
- client->whoami = cnum;
- client->msgr->inst.name.type = CEPH_ENTITY_TYPE_CLIENT;
- client->msgr->inst.name.num = cpu_to_le64(cnum);
- pr_info("client%lld fsid " FSID_FORMAT "\n",
- client->whoami, PR_FSID(&client->monc.monmap->fsid));
-
- ceph_debugfs_client_init(client);
- __send_subscribe(monc);
-
- err = 0;
- goto out;
-
-bad:
- pr_err("error decoding mount_ack message\n");
-out:
- client->mount_err = err;
- mutex_unlock(&monc->mutex);
- wake_up(&client->mount_wq);
-}
-#endif
-
-/*
- * The monitor responds with mount ack indicate mount success. The
- * included client ticket allows the client to talk to MDSs and OSDs.
- */
-static void ceph_monc_handle_map(struct ceph_mon_client *monc, struct ceph_msg *msg)
+static void ceph_monc_handle_map(struct ceph_mon_client *monc,
+ struct ceph_msg *msg)
{
struct ceph_client *client = monc->client;
struct ceph_monmap *monmap = NULL, *old = monc->monmap;
@@ -420,42 +343,19 @@
(int)PTR_ERR(monmap));
return;
}
- if (monc->have_fsid &&
- ceph_fsid_compare(&monmap->fsid, &monc->monmap->fsid)) {
- print_hex_dump(KERN_ERR, "monmap->fsid: ", DUMP_PREFIX_NONE, 16, 1,
- (void *)&monmap->fsid, 16, 0);
- print_hex_dump(KERN_ERR, "monc->monmap->fsid: ", DUMP_PREFIX_NONE, 16, 1,
- (void *)&monc->monmap->fsid, 16, 0);
- pr_err("fsid mismatch, got a previous map with different fsid");
+ if (ceph_check_fsid(monc->client, &monmap->fsid) < 0) {
kfree(monmap);
return;
}
client->monc.monmap = monmap;
- client->monc.have_fsid = true;
kfree(old);
mutex_unlock(&monc->mutex);
wake_up(&client->mount_wq);
}
-
-/*
- * init client info after authentication
- */
-static void __init_authenticated_client(struct ceph_mon_client *monc)
-{
- struct ceph_client *client = monc->client;
-
- client->signed_ticket = NULL;
- client->signed_ticket_len = 0;
- client->msgr->inst.name.type = CEPH_ENTITY_TYPE_CLIENT;
- client->msgr->inst.name.num = monc->auth->global_id;
-
- ceph_debugfs_client_init(client);
-}
-
/*
* statfs
*/
@@ -754,7 +654,10 @@
ceph_con_send(monc->con, monc->m_auth);
} else if (monc->auth->ops->is_authenticated(monc->auth)) {
dout("authenticated, starting session\n");
- __init_authenticated_client(monc);
+
+ monc->client->msgr->inst.name.type = CEPH_ENTITY_TYPE_CLIENT;
+ monc->client->msgr->inst.name.num = monc->auth->global_id;
+
__send_subscribe(monc);
__resend_statfs(monc);
}