David Windsor e7a41b2769 dlm: check if workqueues are NULL before flushing/destroying ...

[ Upstream commit b355516f45 ]

If the DLM lowcomms stack is shut down before any DLM
traffic can be generated, flush_workqueue() and
destroy_workqueue() can be called on empty send and/or recv
workqueues.

Insert guard conditionals to only call flush_workqueue()
and destroy_workqueue() on workqueues that are not NULL.

Signed-off-by: David Windsor <dwindsor@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2019-07-31 07:27:07 +02:00

..

ast.c

dlm: Don't swamp the CPU with callbacks queued during recovery

2019-02-12 19:46:58 +01:00

ast.h

dlm: use workqueue for callbacks

2011-07-15 12:30:43 -05:00

config.c

dlm: make config_item_type const

2017-10-19 16:15:22 +02:00

config.h

dlm: add log_info config option

2016-06-21 09:04:24 -05:00

debug_fs.c

dlm: Improve a size determination in table_seq_start()

2017-08-07 11:23:09 -05:00

dir.c

dlm: use INFO for recovery messages

2014-02-14 11:54:44 -06:00

dir.h

dlm: use rsbtbl as resource directory

2012-07-16 14:16:19 -05:00

dlm_internal.h

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

Kconfig

fs/dlm: remove CONFIG_EXPERIMENTAL

2012-11-01 15:27:24 -05:00

lock.c

dlm: memory leaks on error path in dlm_user_request()

2019-01-13 09:51:07 +01:00

lock.h

dlm: adopt orphan locks

2014-11-19 14:48:02 -06:00

lockspace.c

dlm: fixed memory leaks after failed ls_remove_names allocation

2019-01-13 09:51:07 +01:00

lockspace.h

dlm: detect available userspace daemon

2008-08-28 11:49:43 -05:00

lowcomms.c

dlm: check if workqueues are NULL before flushing/destroying

2019-07-31 07:27:07 +02:00

lowcomms.h

dlm: fix deadlock between dlm_send and dlm_controld

2012-08-08 11:33:35 -05:00

lvb_table.h

[DLM] The core of the DLM for GFS2/CLVM

2006-01-18 09:30:29 +00:00

main.c

dlm: audit and remove any unnecessary uses of module.h

2016-10-19 11:00:03 -05:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

member.c

dlm: Delete an unnecessary variable initialisation in dlm_ls_start()

2017-08-07 11:23:09 -05:00

member.h

dlm: add recovery callbacks

2012-01-04 08:56:31 -06:00

memory.c

dlm: NULL dereference on failure in kmem_cache_create()

2012-05-15 10:39:28 -05:00

memory.h

dlm: improve rsb searches

2011-07-12 16:02:09 -05:00

midcomms.c

dlm: fix up memory allocation flags

2008-12-23 10:15:40 -06:00

midcomms.h

[DLM] The core of the DLM for GFS2/CLVM

2006-01-18 09:30:29 +00:00

netlink.c

Merge tag 'dlm-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm

2016-12-14 08:31:37 -08:00

plock.c

vfs: do bulk POLL* -> EPOLL* replacement

2018-02-11 14:34:03 -08:00

rcom.c

dlm: remove dlm_send_rcom_lookup_dump

2017-10-09 09:29:31 -05:00

rcom.h

dlm: remove dlm_send_rcom_lookup_dump

2017-10-09 09:29:31 -05:00

recover.c

DLM: retry rcom when dlm_wait_function is timed out.

2017-09-25 12:45:21 -05:00

recover.h

dlm: use rsbtbl as resource directory

2012-07-16 14:16:19 -05:00

recoverd.c

dlm: recheck kthread_should_stop() before schedule()

2017-09-25 12:48:10 -05:00

recoverd.h

dlm: fix unlock balance warnings

2012-08-08 11:33:49 -05:00

requestqueue.c

dlm: fixes for nodir mode

2012-05-02 14:15:27 -05:00

requestqueue.h

dlm: use proper C for dlm/requestqueue stuff (and fix alignment bug)

2008-02-04 01:21:32 -06:00

user.c

vfs: do bulk POLL* -> EPOLL* replacement

2018-02-11 14:34:03 -08:00

user.h

dlm: record full callback state

2011-03-10 10:40:00 -06:00

util.c

dlm: do not byteswap rcom_config

2008-02-04 01:23:43 -06:00

util.h

[DLM] The core of the DLM for GFS2/CLVM

2006-01-18 09:30:29 +00:00