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7ffc7ade2c
Add a new pool->sp_nrthrmin field to track the minimum number of threads in a pool. Add min_threads parameters to both svc_set_num_threads() and svc_set_pool_threads(). If min_threads is non-zero and less than the max, svc_set_num_threads() will ensure that the number of running threads is between the min and the max. If the min is 0 or greater than the max, then it is ignored, and the maximum number of threads will be started, and never spun down. For now, the min_threads is always 0, but a later patch will pass the proper value through from nfsd. Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>