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commit8ea688a337upstream. 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:7f5c330b26("nfsd: allow passing in array of thread counts via netlink") Cc: stable@vger.kernel.org Reported-by: Mike Snitzer <snitzer@kernel.org> Closes: https://lore.kernel.org/linux-nfs/aDC-ftnzhJAlwqwh@kernel.org/ Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>