From: Rusty Russell <rusty@rustcorp.com.au>
Date: Tue, 28 Jul 2015 20:22:14 +0000 (+0930)
Subject: module: weaken locking assertion for oops path.
X-Git-Tag: omap-for-v4.3/fixes-merge-window~148^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fe0d34d242fa1e0dec059e774d146a705420bc9a;p=pandora-kernel.git

module: weaken locking assertion for oops path.

We don't actually hold the module_mutex when calling find_module_all
from module_kallsyms_lookup_name: that's because it's used by the oops
code and we don't want to deadlock.

However, access to the list read-only is safe if preempt is disabled,
so we can weaken the assertion.  Keep a strong version for external
callers though.

Fixes: 0be964be0d45 ("module: Sanitize RCU usage and locking")
Reported-by: He Kuang <hekuang@huawei.com>
Cc: stable@kernel.org
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---

Reading git-diff-tree failed