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authorPaolo Valente <paolo.valente@linaro.org>2021-01-25 20:02:46 +0100
committerJens Axboe <axboe@kernel.dk>2021-01-25 14:18:34 -0700
commite673914d52f913584cc4c454dfcff2e8eb04533f (patch)
treea520b68aca0f70c42be6931c5e69b29b7a09f8c4
parentd1f600fa4732dac36c71a03b790f0c829a076475 (diff)
block, bfq: save also weight-raised service on queue merging
To prevent weight-raising information from being lost on bfq_queue merging, also the amount of service that a bfq_queue receives must be saved and restored when the bfq_queue is merged and split, respectively. Tested-by: Jan Kara <jack@suse.cz> Signed-off-by: Paolo Valente <paolo.valente@linaro.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--block/bfq-iosched.c2
-rw-r--r--block/bfq-iosched.h1
2 files changed, 3 insertions, 0 deletions
diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index 170aa0ccc121..5d48cba07cb5 100644
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -1029,6 +1029,7 @@ bfq_bfqq_resume_state(struct bfq_queue *bfqq, struct bfq_data *bfqd,
bfqq->io_start_time = bic->saved_io_start_time;
bfqq->tot_idle_time = bic->saved_tot_idle_time;
bfqq->wr_coeff = bic->saved_wr_coeff;
+ bfqq->service_from_wr = bic->saved_service_from_wr;
bfqq->wr_start_at_switch_to_srt = bic->saved_wr_start_at_switch_to_srt;
bfqq->last_wr_start_finish = bic->saved_last_wr_start_finish;
bfqq->wr_cur_max_time = bic->saved_wr_cur_max_time;
@@ -2775,6 +2776,7 @@ static void bfq_bfqq_save_state(struct bfq_queue *bfqq)
bic->saved_wr_coeff = bfqq->wr_coeff;
bic->saved_wr_start_at_switch_to_srt =
bfqq->wr_start_at_switch_to_srt;
+ bic->saved_service_from_wr = bfqq->service_from_wr;
bic->saved_last_wr_start_finish = bfqq->last_wr_start_finish;
bic->saved_wr_cur_max_time = bfqq->wr_cur_max_time;
}
diff --git a/block/bfq-iosched.h b/block/bfq-iosched.h
index c913b06016b3..d15299d59f89 100644
--- a/block/bfq-iosched.h
+++ b/block/bfq-iosched.h
@@ -440,6 +440,7 @@ struct bfq_io_cq {
*/
unsigned long saved_wr_coeff;
unsigned long saved_last_wr_start_finish;
+ unsigned long saved_service_from_wr;
unsigned long saved_wr_start_at_switch_to_srt;
unsigned int saved_wr_cur_max_time;
struct bfq_ttime saved_ttime;