Messages in this thread | | | Date | Tue, 12 Jan 2010 01:15:31 -0800 | Subject | Re: [RFC PATCH 2/4] x86: use dmi check to treat disabled cpus as hotplug cpus. | From | Yinghai Lu <> |
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On Mon, Jan 11, 2010 at 7:13 PM, Linus Torvalds <torvalds@linux-foundation.org> wrote: > > > On Mon, 11 Jan 2010, Yinghai Lu wrote: >> >> some systems that have disable cpus entries because same >> BIOS will support 2 sockets and 4 sockets and more at >> same time, BIOS just leave some disable entries, but >> those system do not support cpu hotplug. we don't need >> treat disabled_cpus as hotplug cpus. >> >> so we can make nr_cpu_ids smaller and save more space >> (pcpu data allocations), and could make some systems run >> with logical flat instead of physical flat apic mode > > .. but this one I detest. > > We can't play games that depend on us always filling in some DMI table > correctly. Things need to "just work".
maybe could change to list that doesn't need to treat disabled cpus as hotplug cpus?
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