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[PATCH] fix try_module_get race in elevator_find
authorTejun Heo <htejun@gmail.com>
Thu, 20 Oct 2005 08:56:41 +0000 (10:56 +0200)
committerJens Axboe <axboe@nelson.home.kernel.dk>
Fri, 28 Oct 2005 06:15:58 +0000 (08:15 +0200)
commit2824bc9328467127083c1325f54b67d298c333b2
tree0d19aeb555c35ddbdbcf195b976964523fecc404tree | snapshot (tar.gz zip)
parentb2982649ce38293b14684b26bcda20cfc54164e6commit | diff
[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>
drivers/block/elevator.c diff | blob | blame | history