From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri, 9 Jan 2015 23:19:03 +0000 (-0800)
Subject: dcache: let the dentry count go down to zero without taking d_lock
X-Git-Tag: fixes-v4.0-rc1~77^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=360f54796ed65939093ae373b92ebd5ef3341776;p=pandora-kernel.git

dcache: let the dentry count go down to zero without taking d_lock

We can be more aggressive about this, if we are clever and careful. This is subtle.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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