tree a37df7feb2db67254cc8927730828e87706b2205
parent ee2e992cc28553f6c4dd1ab5483c8733c393626b
author Jens Axboe <jens.axboe@oracle.com> 1223970666 +0200
committer Jens Axboe <jens.axboe@oracle.com> 1224226017 +0200

block: only call ->request_fn when the queue is not stopped

Callers should use either blk_run_queue/__blk_run_queue, or
blk_start_queueing() to invoke request handling instead of calling
->request_fn() directly as that does not take the queue stopped
flag into account.

Also add appropriate comments on the above functions to detail
their usage.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>