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David Windsor b355516f45 dlm: check if workqueues are NULL before flushing/destroying 
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>
2019-07-11 11:01:58 -05:00
..
ast.c
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ast.h
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config.c
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config.h
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debug_fs.c
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dir.c
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dir.h
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dlm_internal.h
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Kconfig
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2019-05-21 10:50:46 +02:00
lock.c
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lock.h
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lockspace.c
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2019-05-30 11:29:21 -07:00
lockspace.h
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2019-05-30 11:29:21 -07:00
lowcomms.c
dlm: check if workqueues are NULL before flushing/destroying
2019-07-11 11:01:58 -05:00
lowcomms.h
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2019-05-30 11:29:21 -07:00
lvb_table.h
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main.c
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2019-05-30 11:29:21 -07:00
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
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member.h
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memory.c
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2019-05-30 11:29:21 -07:00
memory.h
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midcomms.c
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2019-05-30 11:29:21 -07:00
midcomms.h
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2019-05-30 11:29:21 -07:00
netlink.c
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plock.c
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2019-06-05 17:37:12 +02:00
rcom.c
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rcom.h
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2019-05-30 11:29:21 -07:00
recover.c
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recover.h
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recoverd.c
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recoverd.h
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requestqueue.c
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requestqueue.h
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user.c
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user.h
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util.c
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util.h
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