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| author | NeilBrown <neilb@cse.unsw.edu.au> | 2005-11-15 00:09:10 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-15 08:59:19 -0800 |
| commit | 1887b93529410633b5529a7c2d304897dbed5b3e (patch) | |
| tree | bb51359d16e40503dc8faa56bd429311d3514bda /net | |
| parent | fa63b229829e73361900183bc1ae21b71b6c2dae (diff) | |
| download | linux-1887b93529410633b5529a7c2d304897dbed5b3e.tar.gz linux-1887b93529410633b5529a7c2d304897dbed5b3e.tar.bz2 linux-1887b93529410633b5529a7c2d304897dbed5b3e.zip | |
[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 <neilb@suse.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/sunrpc/svcsock.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index e50e7cf43737..c6a51911e71e 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; |