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Groups > linux.kernel > #1485233
| From | Linus Torvalds <torvalds@linux-foundation.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 1/4] mm, vmscan: Batch removal of mappings under a single lock during reclaim |
| Date | 2016-09-16 20:40 +0200 |
| Message-ID | <si6dk-8sO-13@gated-at.bofh.it> (permalink) |
| References | <sfqLf-1c3-23@gated-at.bofh.it> <sfqUV-1ud-17@gated-at.bofh.it> <si1nj-5f0-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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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Re: [PATCH 1/4] mm, vmscan: Batch removal of mappings under a single lock during reclaim Peter Zijlstra <peterz@infradead.org> - 2016-09-16 15:30 +0200
Re: [PATCH 1/4] mm, vmscan: Batch removal of mappings under a single lock during reclaim Peter Zijlstra <peterz@infradead.org> - 2016-09-16 16:10 +0200
Re: [PATCH 1/4] mm, vmscan: Batch removal of mappings under a single lock during reclaim Linus Torvalds <torvalds@linux-foundation.org> - 2016-09-16 20:40 +0200
Re: [PATCH 1/4] mm, vmscan: Batch removal of mappings under a single lock during reclaim Peter Zijlstra <peterz@infradead.org> - 2016-09-17 03:40 +0200
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