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c13ecd4764
Add sunrpc_cache_requests_count() and sunrpc_cache_requests_snapshot() to allow callers to count and snapshot the pending upcall request list without exposing struct cache_request outside of cache.c. Both functions skip entries that no longer have CACHE_PENDING set. The snapshot function takes a cache_get() reference on each item so the caller can safely use them after the queue_lock is released. These will be used by the nfsd generic netlink dumpit handler for svc_export upcall requests. Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>