From: Miklos Szeredi <mszeredi@suse.cz>
Date: Thu, 5 Sep 2013 09:44:41 +0000 (+0200)
Subject: sysfs: use check_submounts_and_drop()
X-Git-Tag: v3.12-rc1~105^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6497d160f6abf8d1082ff1a4efd841118cb1fddd;p=pandora-kernel.git

sysfs: use check_submounts_and_drop()

Do have_submounts(), shrink_dcache_parent() and d_drop() atomically.

check_submounts_and_drop() can deal with negative dentries and
non-directories as well.

Non-directories can also be mounted on.  And just like directories we don't
want these to disappear with invalidation.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

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