From: Tejun Heo <htejun@gmail.com>
Date: Thu, 20 Oct 2005 08:56:41 +0000 (+0200)
Subject: [PATCH] fix try_module_get race in elevator_find
X-Git-Tag: v2.6.15-rc1~733^2~4^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2824bc9328467127083c1325f54b67d298c333b2;p=pandora-kernel.git

[PATCH] fix try_module_get race in elevator_find

This patch removes try_module_get race in elevator_find.
try_module_get should always be called with the spinlock protecting
what the module init/cleanup routines register/unregister to held. In
the case of elevators, we should be holding elv_list to avoid it going
away between spin_unlock_irq and try_module_get.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jens Axboe <axboe@suse.de>
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