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	ipc, kernel: use Linux headers	2014-06-06 16:08:14 -07:00
compat.c	ipc, kernel: use Linux headers	2014-06-06 16:08:14 -07:00
ipc_sysctl.c	ipc: always handle a new value of auto_msgmni	2014-10-14 02:18:22 +02:00
ipcns_notifier.c	ipc: do not use a negative value to re-enable msgmni automatic recomputing	2008-07-25 10:53:42 -07:00
Makefile	Add generic sys_ipc wrapper	2010-03-12 15:52:32 -08:00
mq_sysctl.c	ipc: convert use of typedef ctl_table to struct ctl_table	2014-06-06 16:08:16 -07:00
mqueue.c	ipc: use device_initcall	2014-04-07 16:36:11 -07:00
msg.c	ipc,msg: document volatile r_msg	2014-06-06 16:08:15 -07:00
msgutil.c	ipc, msg: fix message length check for negative values	2013-11-13 12:09:36 +09:00
namespace.c	namespaces: Use task_lock and not rcu to protect nsproxy	2014-07-29 18:08:50 -07:00
sem.c	ipc/sem.c: add a printk_once for semctl(GETNCNT/GETZCNT)	2014-06-06 16:08:15 -07:00
shm.c	shm: allow exit_shm in parallel if only marking orphans	2014-08-08 15:57:26 -07:00
syscall.c	get rid of union semop in sys_semctl(2) arguments	2013-03-05 15:14:16 -05:00
util.c	Documentation: Docbook: Fix generated DocBook/kernel-api.xml	2014-09-09 10:34:56 +02:00
util.h	ipc, kernel: clear whitespace	2014-06-06 16:08:14 -07:00