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authorSergey Senozhatsky <sergey.senozhatsky@gmail.com>2016-12-27 17:16:04 +0300
committerPetr Mladek <pmladek@suse.com>2017-02-08 12:57:32 +0300
commitbd66a89249892acc9d938ba4956066b21403fa5f (patch)
tree0ae764379f70901fab3d6209d1acaaa2dc1d4580
parent548cf34b3a22262a798a4322048070271431a074 (diff)
downloadlinux-bd66a89249892acc9d938ba4956066b21403fa5f.tar.xz
printk: use vprintk_func in vprintk()
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/20161227141611.940-2-sergey.senozhatsky@gmail.com Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Jan Kara <jack@suse.cz> Cc: Tejun Heo <tj@kernel.org> Cc: Calvin Owens <calvinowens@fb.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Peter Hurley <peter@hurleysoftware.com> Cc: linux-kernel@vger.kernel.org Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Reviewed-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Petr Mladek <pmladek@suse.com>
-rw-r--r--kernel/printk/printk.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 8b2696420abb..106843a83b63 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -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);