Displaying 20 results from an estimated 10000 matches similar to: "[PATCH] multiqueue: a hodge podge of things"
2007 Jan 02
0
[PATCH 1/4] add scsi-target and IO_CMD_EPOLL_WAIT patches
This includes two kernel patches, scsi-target and IO_CMD_EPOLL_WAIT.
The former is a modified version of the scsi target infrastructure in
mainline.
The latter enables applications to handle AIO and non-AIO fds in the
same loop. blktap uses the different patch, AIO event queue patch for
the same aim. The IO_CMD_EPOLL_WAIT patch will be merged into mainline
(and the AIO event queue will not) so
2012 May 21
6
[RFC PATCH 1/5] block: Introduce q->abort_queue_fn()
When user hot-unplug a disk which is busy serving I/O, __blk_run_queue
might be unable to drain all the requests. As a result, the
blk_drain_queue() would loop forever and blk_cleanup_queue would not
return. So hot-unplug will fail.
This patch adds a callback in blk_drain_queue() for low lever driver to
abort requests.
Currently, this is useful for virtio-blk to do cleanup in hot-unplug.
Cc:
2012 May 21
6
[RFC PATCH 1/5] block: Introduce q->abort_queue_fn()
When user hot-unplug a disk which is busy serving I/O, __blk_run_queue
might be unable to drain all the requests. As a result, the
blk_drain_queue() would loop forever and blk_cleanup_queue would not
return. So hot-unplug will fail.
This patch adds a callback in blk_drain_queue() for low lever driver to
abort requests.
Currently, this is useful for virtio-blk to do cleanup in hot-unplug.
Cc:
2013 Mar 27
0
[PATCH 04/22] block: Convert bio_for_each_segment() to bvec_iter
More prep work for immutable biovecs - with immutable bvecs drivers
won't be able to use the biovec directly, they'll need to use helpers
that take into account bio->bi_iter.bi_bvec_done.
This updates callers for the new usage without changing the
implementation yet.
Signed-off-by: Kent Overstreet <koverstreet at google.com>
Cc: Jens Axboe <axboe at kernel.dk>
Cc: Geert
2013 Mar 27
0
[PATCH 04/22] block: Convert bio_for_each_segment() to bvec_iter
More prep work for immutable biovecs - with immutable bvecs drivers
won't be able to use the biovec directly, they'll need to use helpers
that take into account bio->bi_iter.bi_bvec_done.
This updates callers for the new usage without changing the
implementation yet.
Signed-off-by: Kent Overstreet <koverstreet at google.com>
Cc: Jens Axboe <axboe at kernel.dk>
Cc: Geert
2013 Aug 07
0
[PATCH 07/22] block: Convert bio_for_each_segment() to bvec_iter
More prep work for immutable biovecs - with immutable bvecs drivers
won't be able to use the biovec directly, they'll need to use helpers
that take into account bio->bi_iter.bi_bvec_done.
This updates callers for the new usage without changing the
implementation yet.
Signed-off-by: Kent Overstreet <kmo at daterainc.com>
Cc: Jens Axboe <axboe at kernel.dk>
Cc: Geert
2013 Aug 07
0
[PATCH 07/22] block: Convert bio_for_each_segment() to bvec_iter
More prep work for immutable biovecs - with immutable bvecs drivers
won't be able to use the biovec directly, they'll need to use helpers
that take into account bio->bi_iter.bi_bvec_done.
This updates callers for the new usage without changing the
implementation yet.
Signed-off-by: Kent Overstreet <kmo at daterainc.com>
Cc: Jens Axboe <axboe at kernel.dk>
Cc: Geert
2013 Aug 07
0
[PATCH 07/22] block: Convert bio_for_each_segment() to bvec_iter
More prep work for immutable biovecs - with immutable bvecs drivers
won't be able to use the biovec directly, they'll need to use helpers
that take into account bio->bi_iter.bi_bvec_done.
This updates callers for the new usage without changing the
implementation yet.
Signed-off-by: Kent Overstreet <kmo at daterainc.com>
Cc: Jens Axboe <axboe at kernel.dk>
Cc: Geert
2013 Oct 29
0
[PATCH 07/23] block: Convert bio_for_each_segment() to bvec_iter
More prep work for immutable biovecs - with immutable bvecs drivers
won't be able to use the biovec directly, they'll need to use helpers
that take into account bio->bi_iter.bi_bvec_done.
This updates callers for the new usage without changing the
implementation yet.
Signed-off-by: Kent Overstreet <kmo at daterainc.com>
Cc: Jens Axboe <axboe at kernel.dk>
Cc: Geert
2013 Oct 29
0
[PATCH 07/23] block: Convert bio_for_each_segment() to bvec_iter
More prep work for immutable biovecs - with immutable bvecs drivers
won't be able to use the biovec directly, they'll need to use helpers
that take into account bio->bi_iter.bi_bvec_done.
This updates callers for the new usage without changing the
implementation yet.
Signed-off-by: Kent Overstreet <kmo at daterainc.com>
Cc: Jens Axboe <axboe at kernel.dk>
Cc: Geert
2013 Oct 29
0
[PATCH 07/23] block: Convert bio_for_each_segment() to bvec_iter
More prep work for immutable biovecs - with immutable bvecs drivers
won't be able to use the biovec directly, they'll need to use helpers
that take into account bio->bi_iter.bi_bvec_done.
This updates callers for the new usage without changing the
implementation yet.
Signed-off-by: Kent Overstreet <kmo at daterainc.com>
Cc: Jens Axboe <axboe at kernel.dk>
Cc: Geert
2013 Jun 09
0
[PATCH 06/26] block: Convert bio_for_each_segment() to bvec_iter
More prep work for immutable biovecs - with immutable bvecs drivers
won't be able to use the biovec directly, they'll need to use helpers
that take into account bio->bi_iter.bi_bvec_done.
This updates callers for the new usage without changing the
implementation yet.
Signed-off-by: Kent Overstreet <koverstreet at google.com>
Cc: Jens Axboe <axboe at kernel.dk>
Cc: Geert
2013 Jun 09
0
[PATCH 06/26] block: Convert bio_for_each_segment() to bvec_iter
More prep work for immutable biovecs - with immutable bvecs drivers
won't be able to use the biovec directly, they'll need to use helpers
that take into account bio->bi_iter.bi_bvec_done.
This updates callers for the new usage without changing the
implementation yet.
Signed-off-by: Kent Overstreet <koverstreet at google.com>
Cc: Jens Axboe <axboe at kernel.dk>
Cc: Geert
2013 Jun 09
0
[PATCH 06/26] block: Convert bio_for_each_segment() to bvec_iter
More prep work for immutable biovecs - with immutable bvecs drivers
won't be able to use the biovec directly, they'll need to use helpers
that take into account bio->bi_iter.bi_bvec_done.
This updates callers for the new usage without changing the
implementation yet.
Signed-off-by: Kent Overstreet <koverstreet at google.com>
Cc: Jens Axboe <axboe at kernel.dk>
Cc: Geert
2013 Nov 27
0
[PATCH 07/25] block: Convert bio_for_each_segment() to bvec_iter
More prep work for immutable biovecs - with immutable bvecs drivers
won't be able to use the biovec directly, they'll need to use helpers
that take into account bio->bi_iter.bi_bvec_done.
This updates callers for the new usage without changing the
implementation yet.
Signed-off-by: Kent Overstreet <kmo at daterainc.com>
Cc: Jens Axboe <axboe at kernel.dk>
Cc: Geert
2013 Nov 27
0
[PATCH 07/25] block: Convert bio_for_each_segment() to bvec_iter
More prep work for immutable biovecs - with immutable bvecs drivers
won't be able to use the biovec directly, they'll need to use helpers
that take into account bio->bi_iter.bi_bvec_done.
This updates callers for the new usage without changing the
implementation yet.
Signed-off-by: Kent Overstreet <kmo at daterainc.com>
Cc: Jens Axboe <axboe at kernel.dk>
Cc: Geert
2013 Nov 27
0
[PATCH 07/25] block: Convert bio_for_each_segment() to bvec_iter
More prep work for immutable biovecs - with immutable bvecs drivers
won't be able to use the biovec directly, they'll need to use helpers
that take into account bio->bi_iter.bi_bvec_done.
This updates callers for the new usage without changing the
implementation yet.
Signed-off-by: Kent Overstreet <kmo at daterainc.com>
Cc: Jens Axboe <axboe at kernel.dk>
Cc: Geert
2020 Apr 23
0
[PATCH RFC v2 02/24] scsi: allocate separate queue for reserved commands
On 4/23/20 4:13 PM, John Garry wrote:
> On 07/04/2020 17:30, Christoph Hellwig wrote:
>> On Tue, Apr 07, 2020 at 04:00:10PM +0200, Hannes Reinecke wrote:
>>> My concern is this:
>>>
>>> struct scsi_device *scsi_get_host_dev(struct Scsi_Host *shost)
>>> {
>>> ????[ .. ]
>>> ????starget = scsi_alloc_target(&shost->shost_gendev, 0,
2012 Jul 13
5
[PATCH V3 0/3] Improve virtio-blk performance
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
2012 Jul 13
5
[PATCH V3 0/3] Improve virtio-blk performance
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