From: Oleg Nesterov <oleg@redhat.com>
Date: Sun, 28 Sep 2014 21:44:18 +0000 (+0200)
Subject: signal: Document the RCU protection of ->sighand
X-Git-Tag: omap-for-v3.19/fixes-rc1~168^2^2^5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=392809b25833548ccfc55e61b76c8451a5073216;p=pandora-kernel.git

signal: Document the RCU protection of ->sighand

__cleanup_sighand() frees sighand without RCU grace period. This is
correct but this looks "obviously buggy" and constantly confuses the
readers, add the comments to explain how this works.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Pranith Kumar <bobby.prani@gmail.com>
---

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