From: John Garry <john.garry@huawei.com>
To: Bart Van Assche <bvanassche@acm.org>, <axboe@kernel.dk>,
<damien.lemoal@opensource.wdc.com>, <jejb@linux.ibm.com>,
<martin.petersen@oracle.com>, <brking@us.ibm.com>, <hare@suse.de>,
<hch@lst.de>
Cc: <linux-block@vger.kernel.org>, <linux-ide@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <linux-scsi@vger.kernel.org>,
<chenxiang66@hisilicon.com>
Subject: Re: [PATCH RFC v2 01/18] blk-mq: Add a flag for reserved requests
Date: Tue, 14 Jun 2022 19:30:20 +0100 [thread overview]
Message-ID: <bc567212-af8c-6aba-30ab-fb1b2390e2e4@huawei.com> (raw)
In-Reply-To: <1f8e7891-a557-bd8e-221a-6cb14770ea8b@acm.org>
On 14/06/2022 19:00, Bart Van Assche wrote:
> On 6/9/22 03:29, John Garry wrote:
>> Add a flag for reserved requests so that drivers may know this for any
>> special handling.
>>
>> The 'reserved' argument in blk_mq_ops.timeout callback could now be
>> replaced by using this flag.
>
> Why not to combine that change into this patch?
>
If we remove the 'reserved' argument in blk_mq_ops.timeout callback then
we can also remove the 'reserved' member of busy_tag_iter_fn. I gave
that all a try and the diffstat looks like this:
block/blk-mq-debugfs.c | 2 +-
block/blk-mq-tag.c | 13 +++++--------
block/blk-mq.c | 22 +++++++++++++---------
block/bsg-lib.c | 2 +-
drivers/block/mtip32xx/mtip32xx.c | 11 +++++------
drivers/block/nbd.c | 5 ++---
drivers/block/null_blk/main.c | 2 +-
drivers/infiniband/ulp/srp/ib_srp.c | 3 +--
drivers/mmc/core/queue.c | 3 +--
drivers/nvme/host/apple.c | 3 +--
drivers/nvme/host/core.c | 2 +-
drivers/nvme/host/fc.c | 6 ++----
drivers/nvme/host/nvme.h | 2 +-
drivers/nvme/host/pci.c | 2 +-
drivers/nvme/host/rdma.c | 3 +--
drivers/nvme/host/tcp.c | 3 +--
drivers/s390/block/dasd.c | 2 +-
drivers/scsi/aacraid/comminit.c | 2 +-
drivers/scsi/aacraid/linit.c | 2 +-
drivers/scsi/hosts.c | 14 ++++++--------
drivers/scsi/mpi3mr/mpi3mr_os.c | 15 ++++-----------
drivers/scsi/scsi_lib.c | 12 ++----------
include/linux/blk-mq.h | 10 ++++++++--
include/scsi/scsi_host.h | 2 +-
24 files changed, 62 insertions(+), 81 deletions(-)
It would seem sensible to send that all separately and break it down a
bit - this series is already almost unmanageable.
> Anyway:
>
> Reviewed-by: Bart Van Assche <bvanassche@acm.org>
> .
Thanks
next prev parent reply other threads:[~2022-06-14 18:27 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-09 10:29 [PATCH RFC v2 00/18] blk-mq/libata/scsi: SCSI driver tagging improvements John Garry
2022-06-09 10:29 ` [PATCH RFC v2 01/18] blk-mq: Add a flag for reserved requests John Garry
2022-06-14 6:43 ` Christoph Hellwig
2022-06-14 9:29 ` John Garry
2022-06-14 18:00 ` Bart Van Assche
2022-06-14 18:30 ` John Garry [this message]
2022-06-09 10:29 ` [PATCH RFC v2 02/18] scsi: core: Resurrect scsi_{get,free}_host_dev() John Garry
2022-06-14 6:44 ` Christoph Hellwig
2022-06-14 9:33 ` John Garry
2022-06-14 19:33 ` Bart Van Assche
2022-06-15 13:44 ` John Garry
2022-06-09 10:29 ` [PATCH RFC v2 03/18] scsi: core: Implement reserved command handling John Garry
2022-06-13 7:01 ` Damien Le Moal
2022-06-13 8:25 ` John Garry
2022-06-13 9:06 ` Damien Le Moal
2022-06-13 9:34 ` John Garry
2022-06-13 9:43 ` Damien Le Moal
2022-06-13 10:05 ` John Garry
2022-06-20 6:45 ` Hannes Reinecke
2022-06-20 7:06 ` Damien Le Moal
2022-06-14 18:20 ` Bart Van Assche
2022-06-14 23:43 ` Damien Le Moal
2022-06-15 7:35 ` John Garry
2022-06-16 2:47 ` Damien Le Moal
2022-06-16 8:24 ` John Garry
2022-06-16 8:41 ` Damien Le Moal
2022-06-20 8:27 ` Hannes Reinecke
2022-06-20 9:02 ` Damien Le Moal
2022-06-20 9:05 ` Christoph Hellwig
2022-06-20 11:24 ` Damien Le Moal
2022-06-20 11:56 ` Hannes Reinecke
2022-06-20 8:02 ` Hannes Reinecke
2022-06-20 6:24 ` Hannes Reinecke
2022-06-20 6:28 ` Christoph Hellwig
2022-06-20 7:03 ` Hannes Reinecke
2022-06-20 7:14 ` Damien Le Moal
2022-06-09 10:29 ` [PATCH RFC v2 04/18] scsi: core: Add support to send reserved commands John Garry
2022-06-13 7:03 ` Damien Le Moal
2022-06-13 9:40 ` John Garry
2022-06-13 9:41 ` Damien Le Moal
2022-06-09 10:29 ` [PATCH RFC v2 05/18] scsi: core: Allocate SCSI host sdev when required John Garry
2022-06-09 10:29 ` [PATCH RFC v2 06/18] libata-scsi: Add ata_scsi_queue_internal() John Garry
2022-06-13 7:12 ` Damien Le Moal
2022-06-13 9:41 ` John Garry
2022-06-09 10:29 ` [PATCH RFC v2 07/18] libata-scsi: Add ata_internal_queuecommand() John Garry
2022-06-13 7:16 ` Damien Le Moal
2022-06-13 9:44 ` John Garry
2022-06-09 10:29 ` [PATCH RFC v2 08/18] libata: Queue ATA internal commands as requests John Garry
2022-06-13 7:22 ` Damien Le Moal
2022-06-13 8:13 ` John Garry
2022-06-09 10:29 ` [PATCH RFC v2 09/18] scsi: ipr: Support reserved commands John Garry
2022-06-09 10:29 ` [PATCH RFC v2 10/18] libata/scsi: libsas: Add sas_queuecommand_internal() John Garry
2022-06-09 10:29 ` [PATCH RFC v2 11/18] scsi: libsas: Don't attempt to find scsi host rphy in slave alloc John Garry
2022-06-09 10:29 ` [PATCH RFC v2 12/18] scsi: libsas drivers: Prepare for reserved commands John Garry
2022-06-09 10:29 ` [PATCH RFC v2 13/18] scsi: libsas: Allocate SCSI commands for tasks John Garry
2022-06-09 10:29 ` [PATCH RFC v2 14/18] scsi: libsas: Queue SMP commands as requests John Garry
2022-06-09 10:29 ` [PATCH RFC v2 15/18] scsi: libsas: Queue TMF " John Garry
2022-06-09 10:29 ` [PATCH RFC v2 16/18] scsi: core: Add scsi_alloc_request_hwq() John Garry
2022-06-09 10:29 ` [PATCH RFC v2 17/18] scsi: libsas: Queue internal abort commands as requests John Garry
2022-06-09 10:29 ` [PATCH RFC v2 18/18] scsi: libsas drivers: Remove private tag management John Garry
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