Andrey Vagin 1195d94e00 ipc: always handle a new value of auto_msgmni ... proc_dointvec_minmax() returns zero if a new value has been set. So we don't need to check all charecters have been handled. Below you can find two examples. In the new value has not been handled properly. $ strace ./a.out open("/proc/sys/kernel/auto_msgmni", O_WRONLY) = 3 write(3, "0\n\0", 3) = 2 close(3) = 0 exit_group(0) $ cat /sys/kernel/debug/tracing/trace $strace ./a.out open("/proc/sys/kernel/auto_msgmni", O_WRONLY) = 3 write(3, "0\n", 2) = 2 close(3) = 0 $ cat /sys/kernel/debug/tracing/trace a.out-697 [000] .... 3280.998235: unregister_ipcns_notifier <-proc_ipcauto_dointvec_minmax Fixes: 9eefe520c8 ("ipc: do not use a negative value to re-enable msgmni automatic recomputin") Signed-off-by: Andrey Vagin <avagin@openvz.org> Cc: Mathias Krause <minipli@googlemail.com> Cc: Manfred Spraul <manfred@colorfullife.com> Cc: Joe Perches <joe@perches.com> Cc: Davidlohr Bueso <davidlohr@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2014-10-14 02:18:22 +02:00
..
compat_mq.c
compat.c
ipc_sysctl.c	ipc: always handle a new value of auto_msgmni	2014-10-14 02:18:22 +02:00
ipcns_notifier.c
Makefile
mq_sysctl.c
mqueue.c
msg.c
msgutil.c
namespace.c	namespaces: Use task_lock and not rcu to protect nsproxy	2014-07-29 18:08:50 -07:00
sem.c
shm.c	shm: allow exit_shm in parallel if only marking orphans	2014-08-08 15:57:26 -07:00
syscall.c
util.c	Documentation: Docbook: Fix generated DocBook/kernel-api.xml	2014-09-09 10:34:56 +02:00
util.h