fs: name case update method
authorNick Piggin <npiggin@kernel.dk>
Fri, 7 Jan 2011 06:49:26 +0000 (17:49 +1100)
committerNick Piggin <npiggin@kernel.dk>
Fri, 7 Jan 2011 06:50:19 +0000 (17:50 +1100)
smpfs and ncpfs want to update a live dentry name in-place. Rather than
have them open code the locking, provide a documented dcache API.

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

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