tree 0b392ba588939a7ee0c405ada8b22047fad9daff
parent ac481c20ef8f6c6f2be75d581863f40c43874ef7
author Jens Axboe <jens.axboe@oracle.com> 1254681379 +0200
committer Jens Axboe <jens.axboe@oracle.com> 1254681379 +0200

cfq-iosched: don't delay async queue if it hasn't dispatched at all

We cannot delay for the first dispatch of the async queue if it
hasn't dispatched at all, since that could present a local user
DoS attack vector using an app that just did slow timed sync reads
while filling memory.

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