block: fix deadlock in blk_abort_queue() for drivers that readd to timeout list
authorHannes Reinecke <hare@suse.de>
Wed, 18 Feb 2009 09:30:15 +0000 (10:30 +0100)
committerJens Axboe <jens.axboe@oracle.com>
Wed, 18 Feb 2009 09:34:16 +0000 (10:34 +0100)
commitbe987fdb55a4726e2fcbab7501f89276bdb57288
treebc92a402a4d710718883e67eeab6e0ced221e7ff
parent41b8c853a495438208faa5be03bbb0050859163b
block: fix deadlock in blk_abort_queue() for drivers that readd to timeout list

blk_abort_queue() iterates the timeout list and aborts each request on the
list, but if the driver error handling readds a request to the timeout list
during this processing, we could be looping forever. Fix this by splicing
current entries to a local list and run over that list instead.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
block/blk-timeout.c