diff options
author | tuexen <tuexen@FreeBSD.org> | 2009-10-26 19:23:34 +0000 |
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committer | tuexen <tuexen@FreeBSD.org> | 2009-10-26 19:23:34 +0000 |
commit | 78210debc46f624bad3c94f727c3c5b4021c97be (patch) | |
tree | 26d1a93a0f4d08ef8f9a568d58099f7c70932e45 | |
parent | dd66eb4609ecf84e7d83c5bda9655ad06df9d478 (diff) | |
download | FreeBSD-src-78210debc46f624bad3c94f727c3c5b4021c97be.zip FreeBSD-src-78210debc46f624bad3c94f727c3c5b4021c97be.tar.gz |
Improve the round robin stream scheduler.
Approved by: rrs (mentor)
MFC after: 3 days
-rw-r--r-- | sys/netinet/sctp_output.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/sys/netinet/sctp_output.c b/sys/netinet/sctp_output.c index a99fc69..02bca90 100644 --- a/sys/netinet/sctp_output.c +++ b/sys/netinet/sctp_output.c @@ -7169,20 +7169,14 @@ sctp_select_a_stream(struct sctp_tcb *stcb, struct sctp_association *asoc) /* Find the next stream to use */ if (asoc->last_out_stream == NULL) { - strq = asoc->last_out_stream = TAILQ_FIRST(&asoc->out_wheel); - if (asoc->last_out_stream == NULL) { - /* huh nothing on the wheel, TSNH */ - return (NULL); + strq = TAILQ_FIRST(&asoc->out_wheel); + } else { + strq = TAILQ_NEXT(asoc->last_out_stream, next_spoke); + if (strq == NULL) { + strq = TAILQ_FIRST(&asoc->out_wheel); } - goto done_it; - } - strq = TAILQ_NEXT(asoc->last_out_stream, next_spoke); -done_it: - if (strq == NULL) { - strq = asoc->last_out_stream = TAILQ_FIRST(&asoc->out_wheel); } return (strq); - } |