Re: [PATCH v2 3/5] kernel/cpu: Allow non-zero CPU to be primary for suspend / kexec freeze

Peter Zijlstra's on April 25, 2019 10:02 pm: > On Thu, Apr 11, 2019 at 01:34:46PM +1000, Nicholas Piggin wrote: >> This patch provides an arch option, ARCH_SUSPEND_NONZERO_CPU, to >> opt-in to allowing suspend to occur on one of the housekeeping CPUs >> rather than hardcoded CPU0. >> >> This will

Re: [PATCH v2 3/5] kernel/cpu: Allow non-zero CPU to be primary for suspend / kexec freeze

On Thu, Apr 11, 2019 at 01:34:46PM +1000, Nicholas Piggin wrote: > This patch provides an arch option, ARCH_SUSPEND_NONZERO_CPU, to > opt-in to allowing suspend to occur on one of the housekeeping CPUs > rather than hardcoded CPU0. > > This will allow CPU0 to be a nohz_full CPU with a later

[PATCH v2 3/5] kernel/cpu: Allow non-zero CPU to be primary for suspend / kexec freeze

This patch provides an arch option, ARCH_SUSPEND_NONZERO_CPU, to opt-in to allowing suspend to occur on one of the housekeeping CPUs rather than hardcoded CPU0. This will allow CPU0 to be a nohz_full CPU with a later change. It may be possible for platforms with hardware/firmware restrictions on