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vfs: avoid taking inode_hash_lock on pipes and sockets
authorEric Dumazet <eric.dumazet@gmail.com>
Thu, 28 Jul 2011 04:41:09 +0000 (06:41 +0200)
committerAl Viro <viro@zeniv.linux.org.uk>
Mon, 1 Aug 2011 05:41:17 +0000 (01:41 -0400)
Some inodes (pipes, sockets, ...) are not hashed, no need to take
contended inode_hash_lock at dismantle time.

nice speedup on SMP machines on socket intensive workloads.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

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