blkio-throttle: There is no need to convert jiffies to milli seconds
o Do not convert jiffies to mili seconds as it is not required. Just work
with jiffies and HZ.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index a467002..c1bc1b6 100644
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -439,8 +439,7 @@
jiffy_elapsed_rnd = roundup(jiffy_elapsed_rnd, throtl_slice);
- io_allowed = (tg->iops[rw] * jiffies_to_msecs(jiffy_elapsed_rnd))
- / MSEC_PER_SEC;
+ io_allowed = (tg->iops[rw] * jiffy_elapsed_rnd) / HZ;
if (tg->io_disp[rw] + 1 <= io_allowed) {
if (wait)
@@ -476,8 +475,8 @@
jiffy_elapsed_rnd = roundup(jiffy_elapsed_rnd, throtl_slice);
- tmp = tg->bps[rw] * jiffies_to_msecs(jiffy_elapsed_rnd);
- do_div(tmp, MSEC_PER_SEC);
+ tmp = tg->bps[rw] * jiffy_elapsed_rnd;
+ do_div(tmp, HZ);
bytes_allowed = tmp;
if (tg->bytes_disp[rw] + bio->bi_size <= bytes_allowed) {