Messages in this thread | | | Date | Thu, 12 Jan 2012 11:28:26 +0900 | From | KAMEZAWA Hiroyuki <> | Subject | Re: [PATCH] mm: vmscan: deactivate isolated pages with lru lock released |
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On Wed, 11 Jan 2012 20:45:07 +0800 Hillf Danton <dhillf@gmail.com> wrote:
> Spinners on other CPUs, if any, could take the lru lock and do their jobs while > isolated pages are deactivated on the current CPU if the lock is released > actively. And no risk of race raised as pages are already queued on locally > private list. > > > Signed-off-by: Hillf Danton <dhillf@gmail.com>
Doesn't this increase the number of lock/unlock ? Hmm, isn't it better to integrate clear_active_flags to isolate_pages() ? Then we don't need list scan.
Thanks, -Kame
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