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List:       linux-kernel
Subject:    Re: [PATCH 1/1] suspend: make sync() on suspend-to-RAM build-time optional
From:       "Rafael J. Wysocki" <rjw () rjwysocki ! net>
Date:       2015-07-31 23:57:44
Message-ID: 1549900.RSMcUBBPG7 () vostro ! rjw ! lan
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On Friday, July 31, 2015 12:46:17 PM Len Brown wrote:
> From: Len Brown <len.brown@intel.com>
> 
> The Linux kernel suspend path has traditionally invoked sys_sync()
> before freezing user threads.
> 
> But sys_sync() can be expensive, and some user-space OS's do not want
> the kernel to pay the cost of sys_sync() on every suspend -- preferring
> invoke sync() from user-space if/when they want it.
> 
> So make sys_sync on suspend build-time optional.
> 
> The default is unchanged.
> 
> Signed-off-by: Len Brown <len.brown@intel.com>

OK, I'm replacing your previous sync patch with this one (modulo some minor
changes in the help text).

Thanks,
Rafael

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