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| author | Jan Kara <jack@suse.cz> | 2014-02-24 16:39:57 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-02-24 14:46:55 -0800 |
| commit | 08eed44c7249d381a099bc55577e55c6bb533160 (patch) | |
| tree | f4d2467cd82c40e10ec0e360398891632edf6a48 /kernel/up.c | |
| parent | 0ebeb79ce920bed3a4a55113534951d95a444fbb (diff) | |
| download | lwn-08eed44c7249d381a099bc55577e55c6bb533160.tar.gz lwn-08eed44c7249d381a099bc55577e55c6bb533160.zip | |
smp: Teach __smp_call_function_single() to check for offline cpus
Align __smp_call_function_single() with smp_call_function_single() so
that it also checks whether requested cpu is still online.
Signed-off-by: Jan Kara <jack@suse.cz>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jens Axboe <axboe@fb.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'kernel/up.c')
| -rw-r--r-- | kernel/up.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/up.c b/kernel/up.c index 509403e3fbc6..cdf03d16840e 100644 --- a/kernel/up.c +++ b/kernel/up.c @@ -22,14 +22,15 @@ int smp_call_function_single(int cpu, void (*func) (void *info), void *info, } EXPORT_SYMBOL(smp_call_function_single); -void __smp_call_function_single(int cpu, struct call_single_data *csd, - int wait) +int __smp_call_function_single(int cpu, struct call_single_data *csd, + int wait) { unsigned long flags; local_irq_save(flags); csd->func(csd->info); local_irq_restore(flags); + return 0; } EXPORT_SYMBOL(__smp_call_function_single); |