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| author | NeilBrown <neilb@suse.de> | 2007-05-09 02:34:55 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-09 12:30:54 -0700 |
| commit | 05ed690efbb28b54af79f97af8c9705e82a6fbd7 (patch) | |
| tree | f6c5a437cb8f8c0a666cd1f1a13e39d1fa354146 /net/sunrpc | |
| parent | c5e434c98b49f4877ea1614a629499e082b1a818 (diff) | |
| download | linux-stable-05ed690efbb28b54af79f97af8c9705e82a6fbd7.tar.gz linux-stable-05ed690efbb28b54af79f97af8c9705e82a6fbd7.tar.bz2 linux-stable-05ed690efbb28b54af79f97af8c9705e82a6fbd7.zip | |
knfsd: simplify a 'while' condition in svcsock.c
This while loop has an overly complex condition, which performs a couple of
assignments. This hurts readability.
We don't really need a loop at all. We can just return -EAGAIN and (providing
we set SK_DATA), the function will be called again.
So discard the loop, make the complex conditional become a few clear function
calls, and hopefully improve readability.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'net/sunrpc')
| -rw-r--r-- | net/sunrpc/svcsock.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index fdb1386f5dcd..5baf48de2558 100644 --- a/net/sunrpc/svcsock.c +++ b/net/sunrpc/svcsock.c @@ -788,15 +788,20 @@ svc_udp_recvfrom(struct svc_rqst *rqstp) } clear_bit(SK_DATA, &svsk->sk_flags); - while ((err = kernel_recvmsg(svsk->sk_sock, &msg, NULL, - 0, 0, MSG_PEEK | MSG_DONTWAIT)) < 0 || - (skb = skb_recv_datagram(svsk->sk_sk, 0, 1, &err)) == NULL) { - if (err == -EAGAIN) { - svc_sock_received(svsk); - return err; + skb = NULL; + err = kernel_recvmsg(svsk->sk_sock, &msg, NULL, + 0, 0, MSG_PEEK | MSG_DONTWAIT); + if (err >= 0) + skb = skb_recv_datagram(svsk->sk_sk, 0, 1, &err); + + if (skb == NULL) { + if (err != -EAGAIN) { + /* possibly an icmp error */ + dprintk("svc: recvfrom returned error %d\n", -err); + set_bit(SK_DATA, &svsk->sk_flags); } - /* possibly an icmp error */ - dprintk("svc: recvfrom returned error %d\n", -err); + svc_sock_received(svsk); + return -EAGAIN; } rqstp->rq_addrlen = sizeof(rqstp->rq_addr); if (skb->tstamp.tv64 == 0) { |