From: Jens Axboe <jens.axboe@oracle.com>
Date: Tue, 14 Oct 2008 07:51:06 +0000 (+0200)
Subject: block: only call ->request_fn when the queue is not stopped
X-Git-Tag: v2.6.28-rc1~261^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=80a4b58e36b63d7b0b592beb1bd6410aadeeb63c;p=pandora-kernel.git

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>
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