fs: dcache reduce d_parent locking
authorNick Piggin <npiggin@kernel.dk>
Fri, 7 Jan 2011 06:49:44 +0000 (17:49 +1100)
committerNick Piggin <npiggin@kernel.dk>
Fri, 7 Jan 2011 06:50:24 +0000 (17:50 +1100)
Use RCU to simplify locking in dget_parent.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>

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