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kexec: Add kexec reboot string 

The purpose is to notify the kernel module for fast reboot.

Upstream a patch from the SONiC network operating system [1].

[1]: https://github.com/Azure/sonic-linux-kernel/pull/46

Link: https://lkml.kernel.org/r/20210304124626.13927-1-pmenzel@molgen.mpg.de
Signed-off-by: Joe LeVeque <jolevequ@microsoft.com>
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Guohan Lu <lguohan@gmail.com>
Cc: Joe LeVeque <jolevequ@microsoft.com>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joe LeVeque 2021-05-06 18:04:35 -07:00 committed by Linus Torvalds
parent a8ca6b1388
commit a119b4e518
1 changed files with 1 additions and 1 deletions
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2
kernel/kexec_core.c
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@ -1165,7 +1165,7 @@ int kernel_kexec(void)
#endif
{
kexec_in_progress = true;
kernel_restart_prepare(NULL);
kernel_restart_prepare("kexec reboot");
migrate_to_reboot_cpu();
/*