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23 October 2021, 00:29:24 UTC
Revision a97955844807e327df11aa33869009d14d6b7de0 authored by Herton R. Krzesinski on 14 August 2015, 22:35:05 UTC, committed by Linus Torvalds on 14 August 2015, 22:56:32 UTC 
ipc,sem: remove uneeded sem_undo_list lock usage in exit_sem()
 
After we acquire the sma->sem_perm lock in exit_sem(), we are protected
against a racing IPC_RMID operation.  Also at that point, we are the last
user of sem_undo_list.  Therefore it isn't required that we acquire or use
ulp->lock.

Signed-off-by: Herton R. Krzesinski <herton@redhat.com>
Acked-by: Manfred Spraul <manfred@colorfullife.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Rafael Aquini <aquini@redhat.com>
CC: Aristeu Rozanski <aris@redhat.com>
Cc: David Jeffery <djeffery@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 602b859
History
Tip revision: a97955844807e327df11aa33869009d14d6b7de0 authored by Herton R. Krzesinski on 14 August 2015, 22:35:05 UTC
ipc,sem: remove uneeded sem_undo_list lock usage in exit_sem()
Tip revision: a979558
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.gitignore -rw-r--r-- 1.2 KB
.mailmap -rw-r--r-- 5.3 KB
COPYING -rw-r--r-- 18.3 KB
CREDITS -rw-r--r-- 94.7 KB
Kbuild -rw-r--r-- 2.6 KB
Kconfig -rw-r--r-- 252 bytes
MAINTAINERS -rw-r--r-- 313.7 KB
Makefile -rw-r--r-- 53.3 KB
README -rw-r--r-- 18.2 KB
REPORTING-BUGS -rw-r--r-- 7.3 KB

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