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Minor tweaks to the formatting

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Tweak the format of the trim + read bias code. Add similar debug to
the read + writes case.

Spondored by: Netflix
This commit is contained in:
Warner Losh 2018-11-26 22:50:30 +00:00
parent 70bfe7f7a8
commit 1759fd7798
1 changed files with 11 additions and 7 deletions
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18
sys/cam/cam_iosched.c
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@ -1240,7 +1240,7 @@ cam_iosched_get_write(struct cam_iosched_softc *isc)
"Reads present and current_read_bias is %d queued "
"writes %d queued reads %d\n",
isc->current_read_bias, isc->write_stats.queued,
isc->read_stats.queued);
isc->read_stats.queued);
isc->current_read_bias--;
/* We're not limiting writes, per se, just doing reads first */
return NULL;
@ -1326,14 +1326,18 @@ cam_iosched_get_trim(struct cam_iosched_softc *isc)
if (!cam_iosched_has_more_trim(isc))
return NULL;
#ifdef CAM_IOSCHED_DYNAMIC
/*
* If pending read, prefer that based on current read bias setting. The
* read bias is shared for both writes and TRIMs, but on TRIMs the bias
* is for a combined TRIM not a single TRIM request that's come in.
*/
if (do_dynamic_iosched) {
/*
* If pending read, prefer that based on current read bias
* setting. The read bias is shared for both writes and
* TRIMs, but on TRIMs the bias is for a combined TRIM
* not a single TRIM request that's come in.
*/
if (bioq_first(&isc->bio_queue) && isc->current_read_bias) {
if (iosched_debug)
printf("Reads present and current_read_bias is %d"
" queued trims %d queued reads %d\n",
isc->current_read_bias, isc->trim_stats.queued,
isc->read_stats.queued);
isc->current_read_bias--;
/* We're not limiting TRIMS, per se, just doing reads first */
return NULL;