Messages in this thread | | | Date | Wed, 17 Nov 2010 01:09:00 +1100 | From | Nick Piggin <> | Subject | [patch 00/28] [rfc] dcache scaling part 1 |
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There are 3 main parts to dcache scaling. This one primarily adds new locks to take over dcache_lock, and some pre/post prep and streamlining patches.
The second implements fine grained locking, and is rather trivial after part 1.
The third implements rcu-walk. rcu-walk depends on the first part, because it relies on using d_lock to protect the state of the dentry (when converting from rcu-walk to refcounted walk). Without the fine grained locing, we'd need to use dcache_lock for that, which would be a step backwards to put into path walking again.
Comments?
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