From 1887b93529410633b5529a7c2d304897dbed5b3e Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 15 Nov 2005 00:09:10 -0800 Subject: [PATCH] [PATCH] knfsd: make sure nfsd doesn't hog a cpu forever Being kernel-threads, nfsd servers don't get pre-empted (depending on CONFIG). If there is a steady stream of NFS requests that can be served from cache, an nfsd thread may hold on to a cpu indefinitely, which isn't very friendly. So it is good to have a cond_resched in there (just before looking for a new request to serve), to make sure we play nice. Signed-off-by: Neil Brown Acked-by: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- net/sunrpc/svcsock.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index e50e7cf..c6a5191 100644 --- a/net/sunrpc/svcsock.c +++ b/net/sunrpc/svcsock.c @@ -1178,6 +1178,7 @@ svc_recv(struct svc_serv *serv, struct svc_rqst *rqstp, long timeout) arg->tail[0].iov_len = 0; try_to_freeze(); + cond_resched(); if (signalled()) return -EINTR; -- 2.7.4