Displaying 7 results from an estimated 7 matches for "blk_rq_bytes".
2010 Sep 02
2
blk_rq_check_limits errors
...t; how-to get of the root cause? Many thanks in advance.
linux/block/blk-core.c
int blk_rq_check_limits(struct request_queue *q, struct request *rq)
{
if (rq->cmd_flags & REQ_DISCARD)
return 0;
if (blk_rq_sectors(rq) > queue_max_sectors(q) ||
blk_rq_bytes(rq) > queue_max_hw_sectors(q) << 9) {
printk(KERN_ERR "%s: over max size limit.\n", __func__);
return -EIO;
}
I haven''t seen that before, but if I should guess, I would guess that dm-* has
a larger queue than your underlying blo...
2023 Jul 09
4
[PATCH v2 0/2] vhost-scsi: Fix IO hangs when using windows
The following patches were made over Linus's tree and fix an issue
where windows guests will send iovecs with offset/lengths that result
in IOs that are not aligned to 512. The LIO layer will then send them
to Linux's FS/block layer but it requires 512 byte alignment, so
depending on the FS/block driver being used we will get IO errors or
hung IO.
The following patches have vhost-scsi
2023 May 24
4
[PATCH 0/3] vhost-scsi: Fix IO hangs when using windows
The following patches were made over Linus's tree and fix an issue
where windows guests will send iovecs with offset/lengths that result
in IOs that are not aligned to 512. The LIO layer will then send them
to Linux's block layer but it requires 512 byte alignment, so depending
on the block driver being used we will get IO errors or hung IO.
The following patches have vhost-scsi detect
2012 Apr 20
1
[PATCH] multiqueue: a hodge podge of things
...,59 @@ static int attempt_merge(struct request_queue *q, struct request *req,
*/
if (time_after(req->start_time, next->start_time))
req->start_time = next->start_time;
req->biotail->bi_next = next->bio;
req->biotail = next->biotail;
req->__data_len += blk_rq_bytes(next);
- elv_merge_requests(q, req, next);
+ elv_merge_requests(ctx, req, next);
/*
* 'next' is going away, so update stats accordingly
*/
blk_account_io_merge(next);
req->ioprio = ioprio_best(req->ioprio, next->ioprio);
if (blk_rq_cpu_valid(next))
req->cp...
2012 Apr 20
1
[PATCH] multiqueue: a hodge podge of things
...,59 @@ static int attempt_merge(struct request_queue *q, struct request *req,
*/
if (time_after(req->start_time, next->start_time))
req->start_time = next->start_time;
req->biotail->bi_next = next->bio;
req->biotail = next->biotail;
req->__data_len += blk_rq_bytes(next);
- elv_merge_requests(q, req, next);
+ elv_merge_requests(ctx, req, next);
/*
* 'next' is going away, so update stats accordingly
*/
blk_account_io_merge(next);
req->ioprio = ioprio_best(req->ioprio, next->ioprio);
if (blk_rq_cpu_valid(next))
req->cp...
2015 Sep 10
6
[RFC PATCH 0/2] virtio nvme
Hi all,
These 2 patches added virtio-nvme to kernel and qemu,
basically modified from virtio-blk and nvme code.
As title said, request for your comments.
Play it in Qemu with:
-drive file=disk.img,format=raw,if=none,id=D22 \
-device virtio-nvme-pci,drive=D22,serial=1234,num_queues=4
The goal is to have a full NVMe stack from VM guest(virtio-nvme)
to host(vhost_nvme) to LIO NVMe-over-fabrics
2015 Sep 10
6
[RFC PATCH 0/2] virtio nvme
Hi all,
These 2 patches added virtio-nvme to kernel and qemu,
basically modified from virtio-blk and nvme code.
As title said, request for your comments.
Play it in Qemu with:
-drive file=disk.img,format=raw,if=none,id=D22 \
-device virtio-nvme-pci,drive=D22,serial=1234,num_queues=4
The goal is to have a full NVMe stack from VM guest(virtio-nvme)
to host(vhost_nvme) to LIO NVMe-over-fabrics