Manfred Spraul 0d97a82ba8 ipc/msg.c: update and document memory barriers ... Transfer findings from ipc/mqueue.c: - A control barrier was missing for the lockless receive case So in theory, not yet initialized data may have been copied to user space - obviously only for architectures where control barriers are not NOP. - use smp_store_release(). In theory, the refount may have been decreased to 0 already when wake_q_add() tries to get a reference. Link: http://lkml.kernel.org/r/20191020123305.14715-5-manfred@colorfullife.com Signed-off-by: Manfred Spraul <manfred@colorfullife.com> Cc: Waiman Long <longman@redhat.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: <1vier1@web.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2020-02-04 03:05:24 +00:00
..
compat.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ipc_sysctl.c	proc/sysctl: add shared variables for range check	2019-07-18 17:08:07 -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
mq_sysctl.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441	2019-06-05 17:37:17 +02:00
mqueue.c	ipc/mqueue.c: update/document memory barriers	2020-02-04 03:05:23 +00:00
msg.c	ipc/msg.c: update and document memory barriers	2020-02-04 03:05:24 +00:00
msgutil.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 52	2019-05-24 17:36:42 +02:00
namespace.c	ipc: Convert mqueue fs to fs_context	2019-02-28 03:29:29 -05:00
sem.c	ipc/sem.c: convert to use built-in RCU list checking	2019-09-25 17:51:41 -07:00
shm.c	ipc: rename old-style shmctl/semctl/msgctl syscalls	2019-01-25 17:22:50 +01:00
syscall.c	y2038: remove CONFIG_64BIT_TIME	2019-11-15 14:38:27 +01:00
util.c	treewide: Use sizeof_field() macro	2019-12-09 10:36:44 -08:00
util.h	ipc: fix sparc64 ipc() wrapper	2019-09-07 21:42:25 +02:00