Messages in this thread | | | From | Linus Torvalds <> | Date | Fri, 16 Sep 2016 11:33:00 -0700 | Subject | Re: [PATCH 1/4] mm, vmscan: Batch removal of mappings under a single lock during reclaim |
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On Fri, Sep 16, 2016 at 6:25 AM, Peter Zijlstra <peterz@infradead.org> wrote: > > So, once upon a time, in a galaxy far away,.. I did a concurrent > pagecache patch set that replaced the tree_lock with a per page bit- > spinlock and fine grained locking in the radix tree.
I'd love to see the patch for that. I'd be a bit worried about extra locking in the trivial cases (ie multi-level locking when we now take just the single mapping lock), but if there is some smart reason why that doesn't happen, then..
Linus
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