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printk: use vprintk_func in vprintk()

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vprintk(), just like printk(), better be using per-cpu printk_func
instead of direct vprintk_emit() call. Just in case if vprintk()
will ever be called from NMI, or from any other context that can
deadlock in printk().

Link: http://lkml.kernel.org/r/[email protected]
Cc: Andrew Morton <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Jan Kara <[email protected]>
Cc: Tejun Heo <[email protected]>
Cc: Calvin Owens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Peter Hurley <[email protected]>
Cc: [email protected]
Signed-off-by: Sergey Senozhatsky <[email protected]>
Reviewed-by: Steven Rostedt <[email protected]>
Signed-off-by: Petr Mladek <[email protected]>
This commit is contained in:
Sergey Senozhatsky 2016-12-27 23:16:04 +09:00 • committed by Petr Mladek
commit bd66a89249
1 changed files with 1 additions and 1 deletions
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2
kernel/printk/printk.c
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@ -1803,7 +1803,7 @@ EXPORT_SYMBOL(vprintk_emit);
asmlinkage int vprintk(const char *fmt, va_list args)
{
return vprintk_emit(0, LOGLEVEL_DEFAULT, NULL, 0, fmt, args);
return vprintk_func(fmt, args);
}
EXPORT_SYMBOL(vprintk);