linux/fs/ceph
Jeff Layton 829ad4db95 ceph: ceph_kick_flushing_caps needs the s_mutex
The mdsc->cap_dirty_lock is not held while walking the list in
ceph_kick_flushing_caps, which is not safe.

ceph_early_kick_flushing_caps does something similar, but the
s_mutex is held while it's called and I think that guards against
changes to the list.

Ensure we hold the s_mutex when calling ceph_kick_flushing_caps,
and add some clarifying comments.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-06-01 13:22:53 +02:00
..
acl.c ceph: add caps perf metric for each superblock 2020-06-01 13:22:51 +02:00
addr.c ceph: add read/write latency metric support 2020-06-01 13:22:51 +02:00
cache.c ceph: replace zero-length array with flexible-array member 2020-03-30 12:42:40 +02:00
cache.h libceph, rbd, ceph: convert to use the new mount API 2019-11-27 22:28:37 +01:00
caps.c ceph: ceph_kick_flushing_caps needs the s_mutex 2020-06-01 13:22:53 +02:00
ceph_frag.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
debugfs.c ceph: add metadata perf metric support 2020-06-01 13:22:51 +02:00
dir.c ceph: add caps perf metric for each superblock 2020-06-01 13:22:51 +02:00
export.c ceph: return ceph_mdsc_do_request() errors from __get_parent() 2020-03-30 12:42:42 +02:00
file.c ceph: add read/write latency metric support 2020-06-01 13:22:51 +02:00
inode.c ceph: add caps perf metric for each superblock 2020-06-01 13:22:51 +02:00
io.c ceph: add buffered/direct exclusionary locking for reads and writes 2019-09-16 12:06:25 +02:00
io.h ceph: add buffered/direct exclusionary locking for reads and writes 2019-09-16 12:06:25 +02:00
ioctl.c ceph: consider inode's last read/write when calculating wanted caps 2020-03-30 12:42:42 +02:00
ioctl.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig ceph: add selinux support 2019-07-08 14:01:42 +02:00
locks.c ceph: check if file lock exists before sending unlock request 2020-03-30 12:42:40 +02:00
Makefile ceph: add dentry lease metric support 2020-06-01 13:22:51 +02:00
mds_client.c ceph: ceph_kick_flushing_caps needs the s_mutex 2020-06-01 13:22:53 +02:00
mds_client.h ceph: ceph_kick_flushing_caps needs the s_mutex 2020-06-01 13:22:53 +02:00
mdsmap.c ceph: add possible_max_rank and make the code more readable 2020-01-27 16:53:40 +01:00
metric.c ceph: add metadata perf metric support 2020-06-01 13:22:51 +02:00
metric.h ceph: add metadata perf metric support 2020-06-01 13:22:51 +02:00
quota.c ceph: demote quotarealm lookup warning to a debug message 2020-05-08 18:44:40 +02:00
snap.c ceph: fix memory leak in ceph_cleanup_snapid_map() 2020-03-23 13:07:08 +01:00
strings.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
super.c ceph: perform asynchronous unlink if we have sufficient caps 2020-03-30 12:42:42 +02:00
super.h ceph: ceph_kick_flushing_caps needs the s_mutex 2020-06-01 13:22:53 +02:00
util.c ceph: move net/ceph/ceph_fs.c to fs/ceph/util.c 2020-01-27 16:53:40 +01:00
xattr.c ceph: add caps perf metric for each superblock 2020-06-01 13:22:51 +02:00