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authorLinus Torvalds <torvalds@linux-foundation.org>2012-08-22 09:58:05 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-08-22 09:58:05 -0700
commitf753c4ec151c5c385fa0508a29aa793dee966325 (patch)
tree934e16b1aaa6c16a73e0c1d94d36997ef7ad419d /fs/ceph/debugfs.c
parentad746be96941ddd2fb31fad7a629de7912051c8d (diff)
parent45f2e081f573526977abfa781a12728f83e9641f (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull ceph fixes from Sage Weil: "Jim's fix closes a narrow race introduced with the msgr changes. One fix resolves problems with debugfs initialization that Yan found when multiple client instances are created (e.g., two clusters mounted, or rbd + cephfs), another one fixes problems with mounting a nonexistent server subdirectory, and the last one fixes a divide by zero error from unsanitized ioctl input that Dan Carpenter found." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: ceph: avoid divide by zero in __validate_layout() libceph: avoid truncation due to racing banners ceph: tolerate (and warn on) extraneous dentry from mds libceph: delay debugfs initialization until we learn global_id
Diffstat (limited to 'fs/ceph/debugfs.c')
-rw-r--r--fs/ceph/debugfs.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c
index fb962efdace..6d59006bfa2 100644
--- a/fs/ceph/debugfs.c
+++ b/fs/ceph/debugfs.c
@@ -201,6 +201,7 @@ int ceph_fs_debugfs_init(struct ceph_fs_client *fsc)
int err = -ENOMEM;
dout("ceph_fs_debugfs_init\n");
+ BUG_ON(!fsc->client->debugfs_dir);
fsc->debugfs_congestion_kb =
debugfs_create_file("writeback_congestion_kb",
0600,