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kexec: quiet down kexec reboot

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Here is a regular kexec command sequence and output:
=====
$ kexec --reuse-cmdline -i --load Image
$ kexec -e
[  161.342002] kexec_core: Starting new kernel

Welcome to Buildroot
buildroot login:
=====

Even when "quiet" kernel parameter is specified, "kexec_core: Starting
new kernel" is printed.

This message has  KERN_EMERG level, but there is no emergency, it is a
normal kexec operation, so quiet it down to appropriate KERN_NOTICE.

Machines that have slow console baud rate benefit from less output.

Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
Reviewed-by: Simon Horman <horms@verge.net.au>
Acked-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Pavel Tatashin 2019-12-04 10:59:14 -05:00 committed by Will Deacon
parent 46cf053efe
commit d42cc530b1
1 changed files with 1 additions and 1 deletions
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2
kernel/kexec_core.c
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@ -1171,7 +1171,7 @@ int kernel_kexec(void)
* CPU hotplug again; so re-enable it here.
*/
cpu_hotplug_enable();
pr_emerg("Starting new kernel\n");
pr_notice("Starting new kernel\n");
machine_shutdown();
}