diff options
| author | Jens Axboe <axboe@kernel.dk> | 2021-10-18 08:53:19 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-10-18 14:40:33 -0600 |
| commit | afd7de03c5268f74202c1dd4780a8532a11f4c6b (patch) | |
| tree | 7464cccb9ea646ffb97c1ef9b146574409d298b8 /include/linux/blk-mq.h | |
| parent | 9a14d6ce4135fa72705a926c894218a0d6988924 (diff) | |
block: remove some blk_mq_hw_ctx debugfs entries
Just like the blk_mq_ctx counterparts, we've got a bunch of counters
in here that are only for debugfs and are of questionnable value. They
are:
- dispatched, index of how many requests were dispatched in one go
- poll_{considered,invoked,success}, which track poll sucess rates. We're
confident in the iopoll implementation at this point, don't bother
tracking these.
As a bonus, this shrinks each hardware queue from 576 bytes to 512 bytes,
dropping a whole cacheline.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/blk-mq.h')
| -rw-r--r-- | include/linux/blk-mq.h | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index 95c3bd3a008e..9fb8618fb957 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -341,9 +341,6 @@ struct blk_mq_hw_ctx { unsigned long queued; /** @run: Number of dispatched requests. */ unsigned long run; -#define BLK_MQ_MAX_DISPATCH_ORDER 7 - /** @dispatched: Number of dispatch requests by queue. */ - unsigned long dispatched[BLK_MQ_MAX_DISPATCH_ORDER]; /** @numa_node: NUMA node the storage adapter has been connected to. */ unsigned int numa_node; @@ -363,13 +360,6 @@ struct blk_mq_hw_ctx { /** @kobj: Kernel object for sysfs. */ struct kobject kobj; - /** @poll_considered: Count times blk_mq_poll() was called. */ - unsigned long poll_considered; - /** @poll_invoked: Count how many requests blk_mq_poll() polled. */ - unsigned long poll_invoked; - /** @poll_success: Count how many polled requests were completed. */ - unsigned long poll_success; - #ifdef CONFIG_BLK_DEBUG_FS /** * @debugfs_dir: debugfs directory for this hardware queue. Named |