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| author | Nilay Shroff <nilay@linux.ibm.com> | 2025-11-13 14:28:19 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-01-02 12:56:50 +0100 |
| commit | aa81ed74af25ac10fcf69515eae18e14a0709f2b (patch) | |
| tree | 9445129f4a6ba2ee20b9dac2f6c0e69c9a248184 /block/blk-mq-sched.h | |
| parent | 22f98de8fa78f5e245046e2714244479e0ffd371 (diff) | |
block: move elevator tags into struct elevator_resources
[ Upstream commit 04728ce90966c54417fd8120a3820104d18ba68d ]
This patch introduces a new structure, struct elevator_resources, to
group together all elevator-related resources that share the same
lifetime. As a first step, this change moves the elevator tag pointer
from struct elv_change_ctx into the new struct elevator_resources.
Additionally, rename blk_mq_alloc_sched_tags_batch() and
blk_mq_free_sched_tags_batch() to blk_mq_alloc_sched_res_batch() and
blk_mq_free_sched_res_batch(), respectively. Introduce two new wrapper
helpers, blk_mq_alloc_sched_res() and blk_mq_free_sched_res(), around
blk_mq_alloc_sched_tags() and blk_mq_free_sched_tags().
These changes pave the way for consolidating the allocation and freeing
of elevator-specific resources into common helper functions. This
refactoring improves encapsulation and prepares the code for future
extensions, allowing additional elevator-specific data to be added to
struct elevator_resources without cluttering struct elv_change_ctx.
Subsequent patches will extend struct elevator_resources to include
other elevator-related data.
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Yu Kuai <yukuai@fnnas.com>
Signed-off-by: Nilay Shroff <nilay@linux.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Stable-dep-of: 9869d3a6fed3 ("block: fix race between wbt_enable_default and IO submission")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'block/blk-mq-sched.h')
| -rw-r--r-- | block/blk-mq-sched.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/block/blk-mq-sched.h b/block/blk-mq-sched.h index 2fddbc91a235..1f8e58dd4b49 100644 --- a/block/blk-mq-sched.h +++ b/block/blk-mq-sched.h @@ -19,20 +19,24 @@ void __blk_mq_sched_restart(struct blk_mq_hw_ctx *hctx); void blk_mq_sched_dispatch_requests(struct blk_mq_hw_ctx *hctx); int blk_mq_init_sched(struct request_queue *q, struct elevator_type *e, - struct elevator_tags *et); + struct elevator_resources *res); void blk_mq_exit_sched(struct request_queue *q, struct elevator_queue *e); void blk_mq_sched_free_rqs(struct request_queue *q); struct elevator_tags *blk_mq_alloc_sched_tags(struct blk_mq_tag_set *set, unsigned int nr_hw_queues, unsigned int nr_requests); -int blk_mq_alloc_sched_tags_batch(struct xarray *et_table, +int blk_mq_alloc_sched_res(struct request_queue *q, + struct elevator_resources *res, unsigned int nr_hw_queues); +int blk_mq_alloc_sched_res_batch(struct xarray *elv_tbl, struct blk_mq_tag_set *set, unsigned int nr_hw_queues); int blk_mq_alloc_sched_ctx_batch(struct xarray *elv_tbl, struct blk_mq_tag_set *set); void blk_mq_free_sched_ctx_batch(struct xarray *elv_tbl); void blk_mq_free_sched_tags(struct elevator_tags *et, struct blk_mq_tag_set *set); -void blk_mq_free_sched_tags_batch(struct xarray *et_table, +void blk_mq_free_sched_res(struct elevator_resources *res, + struct blk_mq_tag_set *set); +void blk_mq_free_sched_res_batch(struct xarray *et_table, struct blk_mq_tag_set *set); static inline void blk_mq_sched_restart(struct blk_mq_hw_ctx *hctx) |