[PATCH 0/4] nvme: make core.nvme_multipath configurable

From: John Meneghini
Date: Thu Feb 27 2025 - 22:26:03 EST


These patches propose an alternative to outright removing the multipath
module parameter. Rather than deleting this module parameter we control
its appearance with a new Kconfig option named NVME_MULTIPATH_PARAM

Note that the default kernel config settings produce a kernel
with no change in functionality. By default both NVME_MULTIPATH
and NVME_MULTIPATH_PARAM are enabled and there are no user visable
changes.

To remove the core.nvme_multipath parameter simply compile with
NVME_MULTIPATH_PARAM=n.

Hopefully this compromise gives everyone what they want.

Closes: https://lore.kernel.org/linux-nvme/20250204211158.43126-1-bgurney@xxxxxxxxxx/

John Meneghini (4):
nvme-multipath: change the NVME_MULTIPATH config option
nvme-multipath: add the NVME_MULTIPATH_PARAM config option
nvme: update the multipath warning in nvme_init_ns_head
nvme: add mulitipath warning to nvme_alloc_ns

drivers/nvme/host/Kconfig | 28 ++++++++++++++++++++++++----
drivers/nvme/host/core.c | 19 ++++++++++++++++++-
drivers/nvme/host/multipath.c | 3 ++-
3 files changed, 44 insertions(+), 6 deletions(-)

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2.48.1