Re: [PATCH 1/2] nfsd: use threads array as-is in netlink interface
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From: Simon Horman <horms@kernel.org>
Date: 2025-05-28 17:07:13
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On Tue, May 27, 2025 at 08:12:47PM -0400, Jeff Layton wrote:
The old nfsdfs interface for starting a server with multiple pools
handles the special case of a single entry array passed down from
userland by distributing the threads over every NUMA node.
The netlink control interface however constructs an array of length
nfsd_nrpools() and fills any unprovided slots with 0's. This behavior
defeats the special casing that the old interface relies on.
Change nfsd_nl_threads_set_doit() to pass down the array from userland
as-is.
Fixes: 7f5c330b2620 ("nfsd: allow passing in array of thread counts via netlink")
Reported-by: Mike Snitzer <snitzer@kernel.org>
Closes: https://lore.kernel.org/linux-nfs/aDC-ftnzhJAlwqwh@kernel.org/ (local)
Signed-off-by: Jeff Layton <jlayton@kernel.org>Reviewed-by: Simon Horman <horms@kernel.org>