Re: [PATCH 3/4] mm: gup: use get_user_pages_fast and get_user_pages_unlocked
From: Andrea Arcangeli <hidden>
Date: 2014-10-12 13:25:30
Also in:
kvm, linux-mm
On Thu, Oct 09, 2014 at 12:52:45PM +0200, Peter Zijlstra wrote:
On Wed, Oct 01, 2014 at 10:56:36AM +0200, Andrea Arcangeli wrote:quoted
Just an optimization.Does it make sense to split the thing in two? One where you apply _unlocked and then one where you apply _fast?
Yes but I already dropped the _fast optimization, as the latency enhancements to gup_fast were NAKed earlier in this thread. So this patch has already been updated to only apply _unlocked. http://git.kernel.org/cgit/linux/kernel/git/andrea/aa.git/commit/?id=bc2e0473b601c6a330ddb4adbcf4c048b2233d4e