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authorChristoph Hellwig <hch@infradead.org>2010-10-10 05:36:27 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2010-10-25 21:26:13 -0400
commit3825bdb7ed920845961f32f364454bee5f469abb (patch)
tree935f4d42ff568efd595700889a1839a604aa8cec /fs/exportfs/expfs.c
parenta4633357ac610cd2f8740e28a31fc148a7960421 (diff)
downloadop-kernel-dev-3825bdb7ed920845961f32f364454bee5f469abb.zip
op-kernel-dev-3825bdb7ed920845961f32f364454bee5f469abb.tar.gz
fs: use RCU read side protection in d_validate
d_validate does a purely read lookup in the dentry hash, so use RCU read side locking instead of dcache_lock. Split out from a larget patch by Nick Piggin <npiggin@suse.de>. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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