Revision 177c53d943368fc97644ebc0a250dc8e2d124250 authored by Peter Zijlstra on 28 February 2014, 12:39:05 UTC, committed by Ingo Molnar on 11 March 2014, 10:33:47 UTC
We must use smp_call_function_single(.wait=1) for the irq_cpu_stop_queue_work() to ensure the queueing is actually done under stop_cpus_lock. Without this we could have dropped the lock by the time we do the queueing and get the race we tried to fix. Fixes: 7053ea1a34fa ("stop_machine: Fix race between stop_two_cpus() and stop_cpus()") Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Rik van Riel <riel@redhat.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Christoph Hellwig <hch@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/r/20140228123905.GK3104@twins.programming.kicks-ass.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
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File | Mode | Size |
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Makefile | -rw-r--r-- | 394 bytes |
compat.c | -rw-r--r-- | 19.2 KB |
compat_mq.c | -rw-r--r-- | 4.1 KB |
ipc_sysctl.c | -rw-r--r-- | 7.0 KB |
ipcns_notifier.c | -rw-r--r-- | 2.2 KB |
mq_sysctl.c | -rw-r--r-- | 2.9 KB |
mqueue.c | -rw-r--r-- | 35.3 KB |
msg.c | -rw-r--r-- | 24.0 KB |
msgutil.c | -rw-r--r-- | 3.6 KB |
namespace.c | -rw-r--r-- | 4.7 KB |
sem.c | -rw-r--r-- | 54.8 KB |
shm.c | -rw-r--r-- | 31.9 KB |
syscall.c | -rw-r--r-- | 2.3 KB |
util.c | -rw-r--r-- | 22.3 KB |
util.h | -rw-r--r-- | 6.4 KB |
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