From: Sagi Grimberg <sagi@grimberg.me>
To: linux-nvme@lists.infradead.org, Christoph Hellwig <hch@lst.de>,
Keith Busch <kbusch@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>, Chao Leng <lengchao@huawei.com>
Subject: [PATCH rfc v2 0/4] improve quiesce time for large amount of namespaces
Date: Fri, 24 Jul 2020 16:06:00 -0700 [thread overview]
Message-ID: <20200724230604.34625-1-sagi@grimberg.me> (raw)
This set attempts to improve the quiesce time when using a large set of
namespaces, which also improves I/O failover time in a multipath environment.
We improve for both non-blocking hctxs (e.g. pci, fc, rdma) and blocking
hctxs (e.g. tcp).
The original patch from Chao was targeted to rdma, hence Patch #4 is just
for testing purposes in case testing with nvme-tcp is an issue.
Changes from v1:
- fixed patch #2 wrong leftovers (start_freeze)
Chao Leng (1):
nvme-core: reduce io failover time
Sagi Grimberg (3):
blk-mq: add async quiesce interface for blocking hw queues
nvme: improve quiesce for blocking queues
nvme-rdma: use blocking quiesce interface
block/blk-mq.c | 31 +++++++++++++++++++++++++++++++
drivers/nvme/host/core.c | 20 +++++++++++++++++++-
drivers/nvme/host/nvme.h | 1 +
drivers/nvme/host/rdma.c | 5 +++--
drivers/nvme/host/tcp.c | 2 +-
include/linux/blk-mq.h | 4 ++++
6 files changed, 59 insertions(+), 4 deletions(-)
--
2.25.1
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next reply other threads:[~2020-07-24 23:06 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-24 23:06 Sagi Grimberg [this message]
2020-07-24 23:06 ` [PATCH rfc v2 1/4] blk-mq: add async quiesce interface for blocking hw queues Sagi Grimberg
2020-07-25 7:03 ` Chao Leng
2020-07-25 17:35 ` Sagi Grimberg
2020-07-24 23:06 ` [PATCH rfc v2 2/4] nvme: improve quiesce for blocking queues Sagi Grimberg
2020-07-24 23:06 ` [PATCH rfc v2 3/4] nvme-core: reduce io failover time Sagi Grimberg
2020-07-24 23:15 ` Sagi Grimberg
2020-07-25 8:51 ` Chao Leng
2020-07-24 23:06 ` [PATCH for-testing v2 4/4] nvme-rdma: use blocking quiesce interface Sagi Grimberg
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