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[BLOCK] cfq-iosched: fix slice_left calculation
authorTejun Heo <htejun@gmail.com>
Thu, 10 Nov 2005 17:20:16 +0000 (18:20 +0100)
committerJens Axboe <axboe@nelson.home.kernel.dk>
Sat, 12 Nov 2005 09:56:36 +0000 (10:56 +0100)
commitb740d98f5614e34b4cff2e1e67826f007c8d4f30
tree50ff24c84b2ecfc2e8e518b1d9aecf3be2bc8ec5tree | snapshot
parentbe56123568072d223263a6a70a087d1e7faabb83commit | diff
[BLOCK] cfq-iosched: fix slice_left calculation

When cfq slice expires, remainder of slice is calculated and stored in
cfqq->slice_left.  Current code calculates the opposite of remainder -
how many jiffies the cfqq has used past slice end.  This patch fixes
the bug.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jens Axboe <axboe@suse.de>
block/cfq-iosched.c diff | blob | history
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