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authorLinus Torvalds <torvalds@linux-foundation.org>2012-02-02 15:47:33 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-02-02 15:47:33 -0800
commit6c073a7ee250118b8be3a2379c96fd7f78382b06 (patch)
treeb398bd9cad821a3543df835e5a0110f270acafb9 /net
parentff05f603c3238010769787f3ba54c48c290ed3e5 (diff)
parentd23a4b3fd6ef70b80411b39b8c8bc548a219ce70 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: rbd: fix safety of rbd_put_client() rbd: fix a memory leak in rbd_get_client() ceph: create a new session lock to avoid lock inversion ceph: fix length validation in parse_reply_info() ceph: initialize client debugfs outside of monc->mutex ceph: change "ceph.layout" xattr to be "ceph.file.layout"
Diffstat (limited to 'net')
-rw-r--r--net/ceph/ceph_common.c2
-rw-r--r--net/ceph/mon_client.c13
2 files changed, 12 insertions, 3 deletions
diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c
index 97f70e50ad3..761ad9d6cc3 100644
--- a/net/ceph/ceph_common.c
+++ b/net/ceph/ceph_common.c
@@ -85,8 +85,6 @@ int ceph_check_fsid(struct ceph_client *client, struct ceph_fsid *fsid)
} else {
pr_info("client%lld fsid %pU\n", ceph_client_id(client), fsid);
memcpy(&client->fsid, fsid, sizeof(*fsid));
- ceph_debugfs_client_init(client);
- client->have_fsid = true;
}
return 0;
}
diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c
index 0b62deae42b..1845cde2622 100644
--- a/net/ceph/mon_client.c
+++ b/net/ceph/mon_client.c
@@ -8,8 +8,8 @@
#include <linux/ceph/mon_client.h>
#include <linux/ceph/libceph.h>
+#include <linux/ceph/debugfs.h>
#include <linux/ceph/decode.h>
-
#include <linux/ceph/auth.h>
/*
@@ -340,8 +340,19 @@ static void ceph_monc_handle_map(struct ceph_mon_client *monc,
client->monc.monmap = monmap;
kfree(old);
+ if (!client->have_fsid) {
+ client->have_fsid = true;
+ mutex_unlock(&monc->mutex);
+ /*
+ * do debugfs initialization without mutex to avoid
+ * creating a locking dependency
+ */
+ ceph_debugfs_client_init(client);
+ goto out_unlocked;
+ }
out:
mutex_unlock(&monc->mutex);
+out_unlocked:
wake_up_all(&client->auth_wq);
}