writeback: make balance_dirty_pages() gradually back more off
authorJens Axboe <jens.axboe@oracle.com>
Thu, 17 Sep 2009 17:59:14 +0000 (19:59 +0200)
committerJens Axboe <jens.axboe@oracle.com>
Mon, 21 Sep 2009 13:40:33 +0000 (15:40 +0200)
Currently it just sleeps for a very short time, just 1 jiffy. If
we keep looping in there, continually delay for a little longer
of up to 100msec in total. That was the old limit for congestion
wait.

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

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