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-rw-r--r--block/bio-integrity.c17
-rw-r--r--block/blk-core.c6
-rw-r--r--block/blk-merge.c2
-rw-r--r--block/blk-mq-cpumap.c37
-rw-r--r--block/blk-mq.c42
-rw-r--r--block/blk-mq.h2
-rw-r--r--block/blk-sysfs.c2
7 files changed, 70 insertions, 38 deletions
diff --git a/block/bio-integrity.c b/block/bio-integrity.c
index 9aed61fcd0bf..456026c4a3c9 100644
--- a/block/bio-integrity.c
+++ b/block/bio-integrity.c
@@ -104,16 +104,12 @@ err:
}
EXPORT_SYMBOL(bio_integrity_alloc);
-static void bio_integrity_unpin_bvec(struct bio_vec *bv, int nr_vecs,
- bool dirty)
+static void bio_integrity_unpin_bvec(struct bio_vec *bv, int nr_vecs)
{
int i;
- for (i = 0; i < nr_vecs; i++) {
- if (dirty && !PageCompound(bv[i].bv_page))
- set_page_dirty_lock(bv[i].bv_page);
+ for (i = 0; i < nr_vecs; i++)
unpin_user_page(bv[i].bv_page);
- }
}
static void bio_integrity_uncopy_user(struct bio_integrity_payload *bip)
@@ -129,7 +125,7 @@ static void bio_integrity_uncopy_user(struct bio_integrity_payload *bip)
ret = copy_to_iter(bvec_virt(bounce_bvec), bytes, &orig_iter);
WARN_ON_ONCE(ret != bytes);
- bio_integrity_unpin_bvec(orig_bvecs, orig_nr_vecs, true);
+ bio_integrity_unpin_bvec(orig_bvecs, orig_nr_vecs);
}
/**
@@ -149,8 +145,7 @@ void bio_integrity_unmap_user(struct bio *bio)
return;
}
- bio_integrity_unpin_bvec(bip->bip_vec, bip->bip_max_vcnt,
- bio_data_dir(bio) == READ);
+ bio_integrity_unpin_bvec(bip->bip_vec, bip->bip_max_vcnt);
}
/**
@@ -236,7 +231,7 @@ static int bio_integrity_copy_user(struct bio *bio, struct bio_vec *bvec,
}
if (write)
- bio_integrity_unpin_bvec(bvec, nr_vecs, false);
+ bio_integrity_unpin_bvec(bvec, nr_vecs);
else
memcpy(&bip->bip_vec[1], bvec, nr_vecs * sizeof(*bvec));
@@ -362,7 +357,7 @@ int bio_integrity_map_user(struct bio *bio, void __user *ubuf, ssize_t bytes,
return 0;
release_pages:
- bio_integrity_unpin_bvec(bvec, nr_bvecs, false);
+ bio_integrity_unpin_bvec(bvec, nr_bvecs);
free_bvec:
if (bvec != stack_vec)
kfree(bvec);
diff --git a/block/blk-core.c b/block/blk-core.c
index 42023addf9cd..c7b6c1f76359 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1121,8 +1121,8 @@ void blk_start_plug_nr_ios(struct blk_plug *plug, unsigned short nr_ios)
return;
plug->cur_ktime = 0;
- plug->mq_list = NULL;
- plug->cached_rq = NULL;
+ rq_list_init(&plug->mq_list);
+ rq_list_init(&plug->cached_rqs);
plug->nr_ios = min_t(unsigned short, nr_ios, BLK_MAX_REQUEST_COUNT);
plug->rq_count = 0;
plug->multiple_queues = false;
@@ -1218,7 +1218,7 @@ void __blk_flush_plug(struct blk_plug *plug, bool from_schedule)
* queue for cached requests, we don't want a blocked task holding
* up a queue freeze/quiesce event.
*/
- if (unlikely(!rq_list_empty(plug->cached_rq)))
+ if (unlikely(!rq_list_empty(&plug->cached_rqs)))
blk_mq_free_plug_rqs(plug);
plug->cur_ktime = 0;
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 5baa950f34fe..ceac64e796ea 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -1175,7 +1175,7 @@ bool blk_attempt_plug_merge(struct request_queue *q, struct bio *bio,
struct blk_plug *plug = current->plug;
struct request *rq;
- if (!plug || rq_list_empty(plug->mq_list))
+ if (!plug || rq_list_empty(&plug->mq_list))
return false;
rq_list_for_each(&plug->mq_list, rq) {
diff --git a/block/blk-mq-cpumap.c b/block/blk-mq-cpumap.c
index 9638b25fd521..ad8d6a363f24 100644
--- a/block/blk-mq-cpumap.c
+++ b/block/blk-mq-cpumap.c
@@ -11,6 +11,7 @@
#include <linux/smp.h>
#include <linux/cpu.h>
#include <linux/group_cpus.h>
+#include <linux/device/bus.h>
#include "blk.h"
#include "blk-mq.h"
@@ -54,3 +55,39 @@ int blk_mq_hw_queue_to_node(struct blk_mq_queue_map *qmap, unsigned int index)
return NUMA_NO_NODE;
}
+
+/**
+ * blk_mq_map_hw_queues - Create CPU to hardware queue mapping
+ * @qmap: CPU to hardware queue map
+ * @dev: The device to map queues
+ * @offset: Queue offset to use for the device
+ *
+ * Create a CPU to hardware queue mapping in @qmap. The struct bus_type
+ * irq_get_affinity callback will be used to retrieve the affinity.
+ */
+void blk_mq_map_hw_queues(struct blk_mq_queue_map *qmap,
+ struct device *dev, unsigned int offset)
+
+{
+ const struct cpumask *mask;
+ unsigned int queue, cpu;
+
+ if (!dev->bus->irq_get_affinity)
+ goto fallback;
+
+ for (queue = 0; queue < qmap->nr_queues; queue++) {
+ mask = dev->bus->irq_get_affinity(dev, queue + offset);
+ if (!mask)
+ goto fallback;
+
+ for_each_cpu(cpu, mask)
+ qmap->mq_map[cpu] = qmap->queue_offset + queue;
+ }
+
+ return;
+
+fallback:
+ WARN_ON_ONCE(qmap->nr_queues > 1);
+ blk_mq_clear_mq_map(qmap);
+}
+EXPORT_SYMBOL_GPL(blk_mq_map_hw_queues);
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 662e52ab0646..f26bee562693 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -506,7 +506,7 @@ __blk_mq_alloc_requests_batch(struct blk_mq_alloc_data *data)
prefetch(tags->static_rqs[tag]);
tag_mask &= ~(1UL << i);
rq = blk_mq_rq_ctx_init(data, tags, tag);
- rq_list_add(data->cached_rq, rq);
+ rq_list_add_head(data->cached_rqs, rq);
nr++;
}
if (!(data->rq_flags & RQF_SCHED_TAGS))
@@ -515,7 +515,7 @@ __blk_mq_alloc_requests_batch(struct blk_mq_alloc_data *data)
percpu_ref_get_many(&data->q->q_usage_counter, nr - 1);
data->nr_tags -= nr;
- return rq_list_pop(data->cached_rq);
+ return rq_list_pop(data->cached_rqs);
}
static struct request *__blk_mq_alloc_requests(struct blk_mq_alloc_data *data)
@@ -612,7 +612,7 @@ static struct request *blk_mq_rq_cache_fill(struct request_queue *q,
.flags = flags,
.cmd_flags = opf,
.nr_tags = plug->nr_ios,
- .cached_rq = &plug->cached_rq,
+ .cached_rqs = &plug->cached_rqs,
};
struct request *rq;
@@ -637,14 +637,14 @@ static struct request *blk_mq_alloc_cached_request(struct request_queue *q,
if (!plug)
return NULL;
- if (rq_list_empty(plug->cached_rq)) {
+ if (rq_list_empty(&plug->cached_rqs)) {
if (plug->nr_ios == 1)
return NULL;
rq = blk_mq_rq_cache_fill(q, plug, opf, flags);
if (!rq)
return NULL;
} else {
- rq = rq_list_peek(&plug->cached_rq);
+ rq = rq_list_peek(&plug->cached_rqs);
if (!rq || rq->q != q)
return NULL;
@@ -653,7 +653,7 @@ static struct request *blk_mq_alloc_cached_request(struct request_queue *q,
if (op_is_flush(rq->cmd_flags) != op_is_flush(opf))
return NULL;
- plug->cached_rq = rq_list_next(rq);
+ rq_list_pop(&plug->cached_rqs);
blk_mq_rq_time_init(rq, 0);
}
@@ -830,7 +830,7 @@ void blk_mq_free_plug_rqs(struct blk_plug *plug)
{
struct request *rq;
- while ((rq = rq_list_pop(&plug->cached_rq)) != NULL)
+ while ((rq = rq_list_pop(&plug->cached_rqs)) != NULL)
blk_mq_free_request(rq);
}
@@ -1386,8 +1386,7 @@ static void blk_add_rq_to_plug(struct blk_plug *plug, struct request *rq)
*/
if (!plug->has_elevator && (rq->rq_flags & RQF_SCHED_TAGS))
plug->has_elevator = true;
- rq->rq_next = NULL;
- rq_list_add(&plug->mq_list, rq);
+ rq_list_add_tail(&plug->mq_list, rq);
plug->rq_count++;
}
@@ -2781,7 +2780,7 @@ static void blk_mq_plug_issue_direct(struct blk_plug *plug)
blk_status_t ret = BLK_STS_OK;
while ((rq = rq_list_pop(&plug->mq_list))) {
- bool last = rq_list_empty(plug->mq_list);
+ bool last = rq_list_empty(&plug->mq_list);
if (hctx != rq->mq_hctx) {
if (hctx) {
@@ -2824,8 +2823,7 @@ static void blk_mq_dispatch_plug_list(struct blk_plug *plug, bool from_sched)
{
struct blk_mq_hw_ctx *this_hctx = NULL;
struct blk_mq_ctx *this_ctx = NULL;
- struct request *requeue_list = NULL;
- struct request **requeue_lastp = &requeue_list;
+ struct rq_list requeue_list = {};
unsigned int depth = 0;
bool is_passthrough = false;
LIST_HEAD(list);
@@ -2839,12 +2837,12 @@ static void blk_mq_dispatch_plug_list(struct blk_plug *plug, bool from_sched)
is_passthrough = blk_rq_is_passthrough(rq);
} else if (this_hctx != rq->mq_hctx || this_ctx != rq->mq_ctx ||
is_passthrough != blk_rq_is_passthrough(rq)) {
- rq_list_add_tail(&requeue_lastp, rq);
+ rq_list_add_tail(&requeue_list, rq);
continue;
}
- list_add(&rq->queuelist, &list);
+ list_add_tail(&rq->queuelist, &list);
depth++;
- } while (!rq_list_empty(plug->mq_list));
+ } while (!rq_list_empty(&plug->mq_list));
plug->mq_list = requeue_list;
trace_block_unplug(this_hctx->queue, depth, !from_sched);
@@ -2899,19 +2897,19 @@ void blk_mq_flush_plug_list(struct blk_plug *plug, bool from_schedule)
if (q->mq_ops->queue_rqs) {
blk_mq_run_dispatch_ops(q,
__blk_mq_flush_plug_list(q, plug));
- if (rq_list_empty(plug->mq_list))
+ if (rq_list_empty(&plug->mq_list))
return;
}
blk_mq_run_dispatch_ops(q,
blk_mq_plug_issue_direct(plug));
- if (rq_list_empty(plug->mq_list))
+ if (rq_list_empty(&plug->mq_list))
return;
}
do {
blk_mq_dispatch_plug_list(plug, from_schedule);
- } while (!rq_list_empty(plug->mq_list));
+ } while (!rq_list_empty(&plug->mq_list));
}
static void blk_mq_try_issue_list_directly(struct blk_mq_hw_ctx *hctx,
@@ -2976,7 +2974,7 @@ static struct request *blk_mq_get_new_requests(struct request_queue *q,
if (plug) {
data.nr_tags = plug->nr_ios;
plug->nr_ios = 1;
- data.cached_rq = &plug->cached_rq;
+ data.cached_rqs = &plug->cached_rqs;
}
rq = __blk_mq_alloc_requests(&data);
@@ -2999,7 +2997,7 @@ static struct request *blk_mq_peek_cached_request(struct blk_plug *plug,
if (!plug)
return NULL;
- rq = rq_list_peek(&plug->cached_rq);
+ rq = rq_list_peek(&plug->cached_rqs);
if (!rq || rq->q != q)
return NULL;
if (type != rq->mq_hctx->type &&
@@ -3013,14 +3011,14 @@ static struct request *blk_mq_peek_cached_request(struct blk_plug *plug,
static void blk_mq_use_cached_rq(struct request *rq, struct blk_plug *plug,
struct bio *bio)
{
- WARN_ON_ONCE(rq_list_peek(&plug->cached_rq) != rq);
+ if (rq_list_pop(&plug->cached_rqs) != rq)
+ WARN_ON_ONCE(1);
/*
* If any qos ->throttle() end up blocking, we will have flushed the
* plug and hence killed the cached_rq list as well. Pop this entry
* before we throttle.
*/
- plug->cached_rq = rq_list_next(rq);
rq_qos_throttle(rq->q, bio);
blk_mq_rq_time_init(rq, 0);
diff --git a/block/blk-mq.h b/block/blk-mq.h
index 364c0415293c..a80d3b3105f9 100644
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -155,7 +155,7 @@ struct blk_mq_alloc_data {
/* allocate multiple requests/tags in one go */
unsigned int nr_tags;
- struct request **cached_rq;
+ struct rq_list *cached_rqs;
/* input & output parameter */
struct blk_mq_ctx *ctx;
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 692b27266220..0e2520d929e1 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -813,6 +813,8 @@ out_unregister_ia_ranges:
out_debugfs_remove:
blk_debugfs_remove(disk);
mutex_unlock(&q->sysfs_lock);
+ if (queue_is_mq(q))
+ blk_mq_sysfs_unregister(disk);
out_put_queue_kobj:
kobject_put(&disk->queue_kobj);
mutex_unlock(&q->sysfs_dir_lock);
generated by cgit v1.2.3 (git 2.39.0) at 2025-04-30 08:18:06 +0300