search for: request_queue

...he default I/O scheduler. diff --git a/block/blk-core.c b/block/blk-core.c index 1f61b74..e136698 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -121,26 +121,26 @@ struct backing_dev_info *blk_get_backing_dev_info(struct block_device *bdev) struct backing_dev_info *ret = NULL; struct request_queue *q = bdev_get_queue(bdev); if (q) ret = &q->backing_dev_info; return ret; } EXPORT_SYMBOL(blk_get_backing_dev_info); -void blk_rq_init(struct request_queue *q, struct request *rq) +void blk_rq_init(struct blk_queue_ctx *ctx, struct request *rq) { memset(rq, 0, sizeof(*rq));...

...he default I/O scheduler. diff --git a/block/blk-core.c b/block/blk-core.c index 1f61b74..e136698 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -121,26 +121,26 @@ struct backing_dev_info *blk_get_backing_dev_info(struct block_device *bdev) struct backing_dev_info *ret = NULL; struct request_queue *q = bdev_get_queue(bdev); if (q) ret = &q->backing_dev_info; return ret; } EXPORT_SYMBOL(blk_get_backing_dev_info); -void blk_rq_init(struct request_queue *q, struct request *rq) +void blk_rq_init(struct blk_queue_ctx *ctx, struct request *rq) { memset(rq, 0, sizeof(*rq));...

...| 3 +++ block/blk-settings.c | 12 ++++++++++++ include/linux/blkdev.h | 3 +++ 3 files changed, 18 insertions(+) diff --git a/block/blk-core.c b/block/blk-core.c index 1f61b74..ca42fd7 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -369,6 +369,9 @@ void blk_drain_queue(struct request_queue *q, bool drain_all) if (drain_all) blk_throtl_drain(q); + if (q->abort_queue_fn) + q->abort_queue_fn(q); + /* * This function might be called on a queue which failed * driver init after queue creation. Some drivers diff --git a/block/blk-settings.c b/block/blk-settings...

...| 3 +++ block/blk-settings.c | 12 ++++++++++++ include/linux/blkdev.h | 3 +++ 3 files changed, 18 insertions(+) diff --git a/block/blk-core.c b/block/blk-core.c index 1f61b74..ca42fd7 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -369,6 +369,9 @@ void blk_drain_queue(struct request_queue *q, bool drain_all) if (drain_all) blk_throtl_drain(q); + if (q->abort_queue_fn) + q->abort_queue_fn(q); + /* * This function might be called on a queue which failed * driver init after queue creation. Some drivers diff --git a/block/blk-settings.c b/block/blk-settings...

.../sys/kernel/debug/block/vda/requeue_list /sys/kernel/debug/block/vda/poll_stat > > > diff --git a/block/blk-mq.c b/block/blk-mq.c > index b600463791ec..ab3a66e7bd03 100644 > --- a/block/blk-mq.c > +++ b/block/blk-mq.c > @@ -40,6 +40,7 @@ > static bool blk_mq_poll(struct request_queue *q, blk_qc_t cookie); > static void blk_mq_poll_stats_start(struct request_queue *q); > static void blk_mq_poll_stats_fn(struct blk_stat_callback *cb); > +static void blk_mq_map_swqueue(struct request_queue *q); > > static int blk_mq_poll_stats_bkt(const struct request *rq) >...

.../sys/kernel/debug/block/vda/requeue_list /sys/kernel/debug/block/vda/poll_stat > > > diff --git a/block/blk-mq.c b/block/blk-mq.c > index b600463791ec..ab3a66e7bd03 100644 > --- a/block/blk-mq.c > +++ b/block/blk-mq.c > @@ -40,6 +40,7 @@ > static bool blk_mq_poll(struct request_queue *q, blk_qc_t cookie); > static void blk_mq_poll_stats_start(struct request_queue *q); > static void blk_mq_poll_stats_fn(struct blk_stat_callback *cb); > +static void blk_mq_map_swqueue(struct request_queue *q); > > static int blk_mq_poll_stats_bkt(const struct request *rq) >...

...changed, 19 insertions(+) > > > > diff --git a/block/blk-settings.c b/block/blk-settings.c > > index 9a2c23cd97007..3c4ef0d00c2bc 100644 > > --- a/block/blk-settings.c > > +++ b/block/blk-settings.c > > @@ -311,6 +311,21 @@ void blk_queue_max_segment_size(struct request_queue *q, unsigned int max_size) > > } > > EXPORT_SYMBOL(blk_queue_max_segment_size); > > > > + > > +/** > > + * blk_check_logical_block_size - check if logical block size is supported > > + * by the kernel > > + * @size: the logical block size, in byt...

...++++++++++++++++++ include/linux/blkdev.h | 1 + 2 files changed, 19 insertions(+) diff --git a/block/blk-settings.c b/block/blk-settings.c index 9a2c23cd97007..3c4ef0d00c2bc 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -311,6 +311,21 @@ void blk_queue_max_segment_size(struct request_queue *q, unsigned int max_size) } EXPORT_SYMBOL(blk_queue_max_segment_size); + +/** + * blk_check_logical_block_size - check if logical block size is supported + * by the kernel + * @size: the logical block size, in bytes + * + * Description: + * This function checks if the block layers supports...

...ck/blk-mq.c b/block/blk-mq.c index 11097477eeab..bc1950fa9ef6 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -37,6 +37,9 @@ #include "blk-wbt.h" #include "blk-mq-sched.h" +static DEFINE_MUTEX(all_q_mutex); +static LIST_HEAD(all_q_list); + static bool blk_mq_poll(struct request_queue *q, blk_qc_t cookie); static void blk_mq_poll_stats_start(struct request_queue *q); static void blk_mq_poll_stats_fn(struct blk_stat_callback *cb); @@ -2114,8 +2117,8 @@ static void blk_mq_init_cpu_queues(struct request_queue *q, INIT_LIST_HEAD(&__ctx->rq_list); __ctx->queue = q;...

Hi, For virtio block device, actually there is no a hard limit for max request size, and virtio_blk driver set -1 to blk_queue_max_hw_sectors(q, -1U);. But it doesn't work, because there is a default upper limitation BLK_DEF_MAX_SECTORS (1280 sectors). So this series want to add a new helper blk_queue_max_hw_sectors_no_limit to set a proper max reqeust size. Weiping Zhang (2): blk-setting:

Hi, For virtio block device, actually there is no a hard limit for max request size, and virtio_blk driver set -1 to blk_queue_max_hw_sectors(q, -1U);. But it doesn't work, because there is a default upper limitation BLK_DEF_MAX_SECTORS (1280 sectors). So this series want to add a new helper blk_queue_max_hw_sectors_no_limit to set a proper max reqeust size. Weiping Zhang (2): blk-setting:

This patchset implements bio-based IO path for virito-blk to improve performance. Fio test shows bio-based IO path gives the following performance improvement: 1) Ramdisk device With bio-based IO path, sequential read/write, random read/write IOPS boost : 28%, 24%, 21%, 16% Latency improvement: 32%, 17%, 21%, 16% 2) Fusion IO device With bio-based IO path, sequential

This patchset implements bio-based IO path for virito-blk to improve performance. Fio test shows bio-based IO path gives the following performance improvement: 1) Ramdisk device With bio-based IO path, sequential read/write, random read/write IOPS boost : 28%, 24%, 21%, 16% Latency improvement: 32%, 17%, 21%, 16% 2) Fusion IO device With bio-based IO path, sequential

This patchset expands traditional CFQ scheduler in order to support cgroups, and improves old version. Improvements are as following. * Modularizing our new CFQ scheduler. The expanded CFQ scheduler is registered/unregistered as new I/O elevator scheduler called "cfq-cgroups". By this, the traditional CFQ scheduler, which does not handle cgroups, and our new CFQ

This patchset expands traditional CFQ scheduler in order to support cgroups, and improves old version. Improvements are as following. * Modularizing our new CFQ scheduler. The expanded CFQ scheduler is registered/unregistered as new I/O elevator scheduler called "cfq-cgroups". By this, the traditional CFQ scheduler, which does not handle cgroups, and our new CFQ

...lock/blk-core.c:1253:9: error: ?struct request? has no member named ?q? drivers/block/cpqarray.c:938:2: warning: passing argument 1 of ?blk_rq_map_sg? from incompatible pointer type [enabled by default] include/linux/blkdev.h:845:12: note: expected ?struct request *? but argument is of type ?struct request_queue *? drivers/block/cpqarray.c:938:2: warning: passing argument 2 of ?blk_rq_map_sg? from incompatible pointer type [enabled by default] include/linux/blkdev.h:845:12: note: expected ?struct scatterlist *? but argument is of type ?struct request *? drivers/block/cpqarray.c:938:2: error: too many argum...

...lock/blk-core.c:1253:9: error: ?struct request? has no member named ?q? drivers/block/cpqarray.c:938:2: warning: passing argument 1 of ?blk_rq_map_sg? from incompatible pointer type [enabled by default] include/linux/blkdev.h:845:12: note: expected ?struct request *? but argument is of type ?struct request_queue *? drivers/block/cpqarray.c:938:2: warning: passing argument 2 of ?blk_rq_map_sg? from incompatible pointer type [enabled by default] include/linux/blkdev.h:845:12: note: expected ?struct scatterlist *? but argument is of type ?struct request *? drivers/block/cpqarray.c:938:2: error: too many argum...

This patchset implements bio-based IO path for virito-blk to improve performance. Fio test shows it gives, 28%, 24%, 21%, 16% IOPS boost and 32%, 17%, 21%, 16% latency improvement for sequential read/write, random read/write respectively. Asias He (3): block: Introduce __blk_segment_map_sg() helper block: Add blk_bio_map_sg() helper virtio-blk: Add bio-based IO path for virtio-blk

This patchset implements bio-based IO path for virito-blk to improve performance. Fio test shows it gives, 28%, 24%, 21%, 16% IOPS boost and 32%, 17%, 21%, 16% latency improvement for sequential read/write, random read/write respectively. Asias He (3): block: Introduce __blk_segment_map_sg() helper block: Add blk_bio_map_sg() helper virtio-blk: Add bio-based IO path for virtio-blk

This patchset implements bio-based IO path for virito-blk to improve performance. Fio test shows it gives, 28%, 24%, 21%, 16% IOPS boost and 32%, 17%, 21%, 16% latency improvement for sequential read/write, random read/write respectively. Asias He (2): block: Add blk_bio_map_sg() helper virtio-blk: Add bio-based IO path for virtio-blk block/blk-merge.c | 63 ++++++++++++++