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| author | Damien Le Moal <damien.lemoal@wdc.com> | 2021-08-11 12:37:01 +0900 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-08-18 07:21:12 -0600 |
| commit | 202bc942c5cd4340d37b06c4e0b8b03f9925d818 (patch) | |
| tree | d035b4446726fef7015c835a569f83bf68d8beb3 /block/bfq-iosched.h | |
| parent | ba05200fcce0a73fa8db16c514fbaa476d1d9399 (diff) | |
| download | linux-202bc942c5cd4340d37b06c4e0b8b03f9925d818.tar.gz | |
block: Introduce IOPRIO_NR_LEVELS
The BFQ scheduler and ioprio_check_cap() both assume that the RT priority class (IOPRIO_CLASS_RT) can have up to 8 different priority levels, similarly to the BE class (IOPRIO_CLASS_iBE). This is controlled using the IOPRIO_BE_NR macro , which is badly named as the number of levels also applies to the RT class. Introduce the class independent IOPRIO_NR_LEVELS macro, defined to 8, to make things clear. Keep the old IOPRIO_BE_NR macro definition as an alias for IOPRIO_NR_LEVELS. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Link: https://lore.kernel.org/r/20210811033702.368488-6-damien.lemoal@wdc.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/bfq-iosched.h')
| -rw-r--r-- | block/bfq-iosched.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/block/bfq-iosched.h b/block/bfq-iosched.h index 99c2a3cb081e..385e28a843d1 100644 --- a/block/bfq-iosched.h +++ b/block/bfq-iosched.h @@ -931,7 +931,7 @@ struct bfq_group { void *bfqd; - struct bfq_queue *async_bfqq[2][IOPRIO_BE_NR]; + struct bfq_queue *async_bfqq[2][IOPRIO_NR_LEVELS]; struct bfq_queue *async_idle_bfqq; struct bfq_entity *my_entity; @@ -948,7 +948,7 @@ struct bfq_group { struct bfq_entity entity; struct bfq_sched_data sched_data; - struct bfq_queue *async_bfqq[2][IOPRIO_BE_NR]; + struct bfq_queue *async_bfqq[2][IOPRIO_NR_LEVELS]; struct bfq_queue *async_idle_bfqq; struct rb_root rq_pos_tree; |