Re: [patch] x86: avoid unnecessary smp alternatives switch duringsuspend/resume

[Borislav Petkov]

On Sun, Nov 21, 2010 at 08:27:41PM +1100, Nigel Cunningham wrote:
> Hi.
> 
> We have a few others things that want to modify their behaviour
> according to whether we're doing the atomic copy/restore. Perhaps it
> would be an idea to just use a single flag, perhaps a value for
> system_state?

I agree, it would be nicer if we don't introduce a special flag
just for that. Other than that, I like all sane code that speeds up
suspend/resume :). I've attached before/after dmesg excerpts on my
system with the patch ontop of v2.6.37-rc2-181-gb86db47. We end up
saving 11601 Âsecs according to CONFIG_PRINTK_TIME but hey, the code is
simple enough :).

Tested-by: Borislav Petkov <bp@xxxxxxxxx>

Thanks.

-- 
Regards/Gruss,
    Boris.
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[  122.498183] lockdep: fixing up alternatives.
[  122.498228] SMP alternatives: switching to UP code
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[   72.704185] serial 00:0b: disabled
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[   72.704356] i8042 kbd 00:0a: wake-up capability enabled by ACPI
[   72.704742] pci 0000:01:00.0: PCI INT A disabled
[   72.705258] ATIIXP_IDE 0000:00:14.1: PCI INT A disabled
[   72.705915] ahci 0000:00:11.0: PCI INT A disabled
[   72.806818] HDA Intel 0000:01:00.1: PCI INT B disabled
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