linux-kernel - [patch 00/28] [rfc] dcache scaling part 1

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Message-Id: <20101116140900.039761100@kernel.dk>
Date:	Wed, 17 Nov 2010 01:09:00 +1100
From:	Nick Piggin <npiggin@...nel.dk>
To:	linux-fsdevel@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org
Subject: [patch 00/28] [rfc] dcache scaling part 1

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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