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fs: dcache scale dentry refcount
author
Nick Piggin
<npiggin@kernel.dk>
Fri, 7 Jan 2011 06:49:32 +0000
(17:49 +1100)
committer
Nick Piggin
<npiggin@kernel.dk>
Fri, 7 Jan 2011 06:50:21 +0000
(17:50 +1100)
Make d_count non-atomic and protect it with d_lock. This allows us to ensure a
0 refcount dentry remains 0 without dcache_lock. It is also fairly natural when
we start protecting many other dentry members with d_lock.
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
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git.openpandora.org / pandora-kernel.git / commitdiff