From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 11 Mar 2013 00:14:08 +0000 (-0400)
Subject: make vfree() safe to call from interrupt contexts
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~74^2~1^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=32fcfd40715ed13f7a80cbde49d097ddae20c8e2;p=pandora-kernel.git

make vfree() safe to call from interrupt contexts

A bunch of RCU callbacks want to be able to do vfree() and end up with
rather kludgy schemes.  Just let vfree() do the right thing - put the
victim on llist and schedule actual __vunmap() via schedule_work(), so
that it runs from non-interrupt context.

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