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authorDengcheng Zhu <dzhu@wavecomp.com>2018-09-11 14:49:20 -0700
committerPaul Burton <paul.burton@mips.com>2018-09-21 14:25:20 -0700
commitdc57aaf95a516f70e2d527d8287a0332c481a226 (patch)
tree1af8e036c0c14822916a946f003495e518294782 /arch/mips/kernel/machine_kexec.c
parent8250a9b43b257f05c2aba6e8367fa636b630b0a2 (diff)
downloadlinux-next-dc57aaf95a516f70e2d527d8287a0332c481a226.tar.gz
MIPS: kexec: Mark CPU offline before disabling local IRQ
After changing CPU online status, it will not be sent any IPIs such as in __flush_cache_all() on software coherency systems. Do this before disabling local IRQ. Signed-off-by: Dengcheng Zhu <dzhu@wavecomp.com> Signed-off-by: Paul Burton <paul.burton@mips.com> Patchwork: https://patchwork.linux-mips.org/patch/20571/ Cc: pburton@wavecomp.com Cc: ralf@linux-mips.org Cc: linux-mips@linux-mips.org Cc: rachel.mozes@intel.com
Diffstat (limited to 'arch/mips/kernel/machine_kexec.c')
-rw-r--r--arch/mips/kernel/machine_kexec.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/mips/kernel/machine_kexec.c b/arch/mips/kernel/machine_kexec.c
index 8b574bcd39ba..4b3726e4fe3a 100644
--- a/arch/mips/kernel/machine_kexec.c
+++ b/arch/mips/kernel/machine_kexec.c
@@ -118,6 +118,9 @@ machine_kexec(struct kimage *image)
*ptr = (unsigned long) phys_to_virt(*ptr);
}
+ /* Mark offline BEFORE disabling local irq. */
+ set_cpu_online(smp_processor_id(), false);
+
/*
* we do not want to be bothered.
*/