path: root/block/blk-lib.c
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authorDave Chinner <dchinner@redhat.com>2010-07-13 17:50:50 +1000
committerJens Axboe <jaxboe@fusionio.com>2010-08-07 18:26:29 +0200
commitf10d9f617a65905c556c3b37c9b9646ae7d04ed7 (patch)
tree0e1d1a28578e8c1b2115b8486add3b235f7e3619 /block/blk-lib.c
parent2669b19fa4debcdd6a660ace1a124c0900f113e6 (diff)
blkdev: check for valid request queue before issuing flush
Issuing a blkdev_issue_flush() on an unconfigured loop device causes a panic as q->make_request_fn is not configured. This can occur when trying to mount the unconfigured loop device as an XFS filesystem. There are no guards that catch the bio before the request function is called because we don't add a payload to the bio. Instead, manually check this case as soon as we have a pointer to the queue to flush. Signed-off-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'block/blk-lib.c')
0 files changed, 0 insertions, 0 deletions