Messages in this thread | | | Date | Mon, 04 Aug 2008 08:25:02 -0500 | From | Christoph Lameter <> | Subject | Re: [RFC:Patch: 000/008](memory hotplug) rough idea of pgdat removing |
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Yasunori Goto wrote:
>>> Thanks for your comment. >> Duh. Then the use of RCU would also mean that all of reclaim must >> be in a rcu period. So reclaim cannot sleep anymore. > > I use srcu_read_lock() (sleepable rcu lock) if kernel must be sleep for > page reclaim. So, my patch basic idea is followings.
But that introduces more overhead in __alloc_pages.
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