From: Christoph Hellwig <hch@lst.de>
To: Sagi Grimberg <sagi@grimberg.me>
Cc: Jens Axboe <axboe@kernel.dk>, Christoph Hellwig <hch@lst.de>,
Jeffle Xu <jefflexu@linux.alibaba.com>,
Ming Lei <ming.lei@redhat.com>,
Damien Le Moal <Damien.LeMoal@wdc.com>,
Keith Busch <kbusch@kernel.org>,
"Wunderlich, Mark" <mark.wunderlich@intel.com>,
"Vasudevan, Anil" <anil.vasudevan@intel.com>,
linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-nvme@lists.infradead.org
Subject: Re: switch block layer polling to a bio based model v4
Date: Tue, 12 Oct 2021 17:06:41 +0200 [thread overview]
Message-ID: <20211012150641.GA20447@lst.de> (raw)
In-Reply-To: <040104f6-720d-35ed-7e15-a704e6488fd4@grimberg.me>
On Tue, Oct 12, 2021 at 05:57:43PM +0300, Sagi Grimberg wrote:
> Jens, is that with nvme_core.multipath=Y ?
That is the default. But for most PCI device namespaces are private
by default so we won't use the multipath code anyway. Only for
dual ported devices, and even for those that flag might need to be set
explicitly at namespace creation time.
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@lst.de>
To: Sagi Grimberg <sagi@grimberg.me>
Cc: Jens Axboe <axboe@kernel.dk>, Christoph Hellwig <hch@lst.de>,
Jeffle Xu <jefflexu@linux.alibaba.com>,
Ming Lei <ming.lei@redhat.com>,
Damien Le Moal <Damien.LeMoal@wdc.com>,
Keith Busch <kbusch@kernel.org>,
"Wunderlich, Mark" <mark.wunderlich@intel.com>,
"Vasudevan, Anil" <anil.vasudevan@intel.com>,
linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-nvme@lists.infradead.org
Subject: Re: switch block layer polling to a bio based model v4
Date: Tue, 12 Oct 2021 17:06:41 +0200 [thread overview]
Message-ID: <20211012150641.GA20447@lst.de> (raw)
In-Reply-To: <040104f6-720d-35ed-7e15-a704e6488fd4@grimberg.me>
On Tue, Oct 12, 2021 at 05:57:43PM +0300, Sagi Grimberg wrote:
> Jens, is that with nvme_core.multipath=Y ?
That is the default. But for most PCI device namespaces are private
by default so we won't use the multipath code anyway. Only for
dual ported devices, and even for those that flag might need to be set
explicitly at namespace creation time.
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next prev parent reply other threads:[~2021-10-12 15:06 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-12 11:12 switch block layer polling to a bio based model v4 Christoph Hellwig
2021-10-12 11:12 ` Christoph Hellwig
2021-10-12 11:12 ` [PATCH 01/16] direct-io: remove blk_poll support Christoph Hellwig
2021-10-12 11:12 ` Christoph Hellwig
2021-10-13 10:42 ` Sagi Grimberg
2021-10-13 10:42 ` Sagi Grimberg
2021-10-28 1:26 ` Chaitanya Kulkarni
2021-10-12 11:12 ` [PATCH 02/16] block: don't try to poll multi-bio I/Os in __blkdev_direct_IO Christoph Hellwig
2021-10-12 11:12 ` Christoph Hellwig
2021-10-12 11:12 ` [PATCH 03/16] iomap: don't try to poll multi-bio I/Os in __iomap_dio_rw Christoph Hellwig
2021-10-12 11:12 ` Christoph Hellwig
2021-10-12 11:12 ` [PATCH 04/16] io_uring: fix a layering violation in io_iopoll_req_issued Christoph Hellwig
2021-10-12 11:12 ` Christoph Hellwig
2021-10-12 11:12 ` [PATCH 05/16] blk-mq: factor out a blk_qc_to_hctx helper Christoph Hellwig
2021-10-12 11:12 ` Christoph Hellwig
2021-10-12 11:12 ` [PATCH 06/16] blk-mq: factor out a "classic" poll helper Christoph Hellwig
2021-10-12 11:12 ` Christoph Hellwig
2021-10-12 11:12 ` [PATCH 07/16] blk-mq: remove blk_qc_t_to_tag and blk_qc_t_is_internal Christoph Hellwig
2021-10-12 11:12 ` Christoph Hellwig
2021-10-12 11:12 ` [PATCH 08/16] blk-mq: remove blk_qc_t_valid Christoph Hellwig
2021-10-12 11:12 ` Christoph Hellwig
2021-10-12 11:12 ` [PATCH 09/16] block: replace the spin argument to blk_iopoll with a flags argument Christoph Hellwig
2021-10-12 11:12 ` Christoph Hellwig
2021-10-13 10:44 ` Sagi Grimberg
2021-10-13 10:44 ` Sagi Grimberg
2021-10-12 11:12 ` [PATCH 10/16] io_uring: don't sleep when polling for I/O Christoph Hellwig
2021-10-12 11:12 ` Christoph Hellwig
2021-10-13 10:45 ` Sagi Grimberg
2021-10-13 10:45 ` Sagi Grimberg
2021-10-12 11:12 ` [PATCH 11/16] block: rename REQ_HIPRI to REQ_POLLED Christoph Hellwig
2021-10-12 11:12 ` Christoph Hellwig
2021-10-13 10:45 ` Sagi Grimberg
2021-10-13 10:45 ` Sagi Grimberg
2021-10-12 11:12 ` [PATCH 12/16] block: use SLAB_TYPESAFE_BY_RCU for the bio slab Christoph Hellwig
2021-10-12 11:12 ` Christoph Hellwig
2021-10-12 11:12 ` [PATCH 13/16] block: define 'struct bvec_iter' as packed Christoph Hellwig
2021-10-12 11:12 ` Christoph Hellwig
2021-10-12 11:12 ` [PATCH 14/16] block: switch polling to be bio based Christoph Hellwig
2021-10-12 11:12 ` Christoph Hellwig
2021-10-13 9:59 ` Ming Lei
2021-10-13 9:59 ` Ming Lei
2021-10-13 10:45 ` Sagi Grimberg
2021-10-13 10:45 ` Sagi Grimberg
2021-10-15 8:30 ` Pankaj Raghav
2021-10-15 13:24 ` Christoph Hellwig
2021-11-03 7:11 ` chenxiang (M)
2021-11-03 7:22 ` Christoph Hellwig
2021-11-03 8:05 ` chenxiang (M)
2021-10-12 11:12 ` [PATCH 15/16] block: don't allow writing to the poll queue attribute Christoph Hellwig
2021-10-12 11:12 ` Christoph Hellwig
2021-10-12 11:12 ` [PATCH 16/16] nvme-multipath: enable polled I/O Christoph Hellwig
2021-10-12 11:12 ` Christoph Hellwig
2021-10-13 10:46 ` Sagi Grimberg
2021-10-13 10:46 ` Sagi Grimberg
2021-10-12 14:47 ` switch block layer polling to a bio based model v4 Jens Axboe
2021-10-12 14:47 ` Jens Axboe
2021-10-12 14:57 ` Sagi Grimberg
2021-10-12 14:57 ` Sagi Grimberg
2021-10-12 14:58 ` Jens Axboe
2021-10-12 14:58 ` Jens Axboe
2021-10-12 15:09 ` Sagi Grimberg
2021-10-12 15:09 ` Sagi Grimberg
2021-10-12 15:06 ` Christoph Hellwig [this message]
2021-10-12 15:06 ` Christoph Hellwig
-- strict thread matches above, loose matches on Subject: below --
2021-06-15 13:10 Christoph Hellwig
2021-06-15 13:10 ` Christoph Hellwig
2021-06-15 14:37 ` Keith Busch
2021-06-15 14:37 ` Keith Busch
2021-06-15 16:06 ` Christoph Hellwig
2021-06-15 16:06 ` Christoph Hellwig
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