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authorBart Van Assche <bvanassche@acm.org>2024-01-17 12:36:09 -0800
committerJens Axboe <axboe@kernel.dk>2024-01-17 14:16:34 -0700
commit49e60333d743ae32db3bdde2f93bc818482dd741 (patch)
tree16b90c2abac095c871072b54d0d6f17448640f7b
parent78fbb92af27d0982634116c7a31065f24d092826 (diff)
blk-mq: Remove the hctx 'run' debugfs attribute
Nobody uses the debugfs hctx 'run' attribute. Hence remove this attribute and also the code that updates the corresponding member variable. Suggested-by: Jens Axboe <axboe@kernel.dk> Cc: Gabriel Ryan <gabe@cs.columbia.edu> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Link: https://lore.kernel.org/r/20240117203609.4122520-1-bvanassche@acm.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--block/blk-mq-debugfs.c18
-rw-r--r--block/blk-mq-sched.c2
-rw-r--r--include/linux/blk-mq.h3
3 files changed, 0 insertions, 23 deletions
diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c
index 5cbeb9344f2f..94668e72ab09 100644
--- a/block/blk-mq-debugfs.c
+++ b/block/blk-mq-debugfs.c
@@ -479,23 +479,6 @@ out:
return res;
}
-static int hctx_run_show(void *data, struct seq_file *m)
-{
- struct blk_mq_hw_ctx *hctx = data;
-
- seq_printf(m, "%lu\n", hctx->run);
- return 0;
-}
-
-static ssize_t hctx_run_write(void *data, const char __user *buf, size_t count,
- loff_t *ppos)
-{
- struct blk_mq_hw_ctx *hctx = data;
-
- hctx->run = 0;
- return count;
-}
-
static int hctx_active_show(void *data, struct seq_file *m)
{
struct blk_mq_hw_ctx *hctx = data;
@@ -624,7 +607,6 @@ static const struct blk_mq_debugfs_attr blk_mq_debugfs_hctx_attrs[] = {
{"tags_bitmap", 0400, hctx_tags_bitmap_show},
{"sched_tags", 0400, hctx_sched_tags_show},
{"sched_tags_bitmap", 0400, hctx_sched_tags_bitmap_show},
- {"run", 0600, hctx_run_show, hctx_run_write},
{"active", 0400, hctx_active_show},
{"dispatch_busy", 0400, hctx_dispatch_busy_show},
{"type", 0400, hctx_type_show},
diff --git a/block/blk-mq-sched.c b/block/blk-mq-sched.c
index 67c95f31b15b..451a2c1f1f32 100644
--- a/block/blk-mq-sched.c
+++ b/block/blk-mq-sched.c
@@ -324,8 +324,6 @@ void blk_mq_sched_dispatch_requests(struct blk_mq_hw_ctx *hctx)
if (unlikely(blk_mq_hctx_stopped(hctx) || blk_queue_quiesced(q)))
return;
- hctx->run++;
-
/*
* A return of -EAGAIN is an indication that hctx->dispatch is not
* empty and we must run again in order to avoid starving flushes.
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index a676e116085f..7a8150a5f051 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -391,9 +391,6 @@ struct blk_mq_hw_ctx {
*/
struct blk_mq_tags *sched_tags;
- /** @run: Number of dispatched requests. */
- unsigned long run;
-
/** @numa_node: NUMA node the storage adapter has been connected to. */
unsigned int numa_node;
/** @queue_num: Index of this hardware queue. */