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authorNick Piggin <npiggin@kernel.dk>2011-01-07 17:49:31 +1100
committerNick Piggin <npiggin@kernel.dk>2011-01-07 17:50:20 +1100
commit2304450783dfde7b0b94ae234edd0dbffa865073 (patch)
treeb3435e65c24d69ccad9ef9492624f5b6081d86b8 /fs/ceph
parent789680d1ee9311cdf095241dc02bd9784d799cd1 (diff)
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fs: dcache scale lru
Add a new lock, dcache_lru_lock, to protect the dcache LRU list from concurrent modification. d_lru is also protected by d_lock, which allows LRU lists to be accessed without the lru lock, using RCU in future patches. Signed-off-by: Nick Piggin <npiggin@kernel.dk>
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