From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 25 Dec 2014 02:41:47 +0000 (-0500)
Subject: ncpfs: get rid of d_validate() nonsense
X-Git-Tag: fixes-v4.0-rc1~77^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5e993e2534e29b62790f9a2908b551b7fb3a63f0;p=pandora-kernel.git

ncpfs: get rid of d_validate() nonsense

What we want is to have non-counting references to children in
pagecache of parent directory, and avoid picking them after a child
has been freed.  Fine, so let's just have ->d_prune() clear
parent's inode "has directory contents in page cache" flag.
That way we don't need ->d_fsdata for storing offsets, so we can
use it as a quick and dirty "is it referenced from page cache"
flag.

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