Date: Mon, 26 Oct 2009 19:23:34 +0000 (UTC) From: Michael Tuexen <tuexen@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r198499 - head/sys/netinet Message-ID: <200910261923.n9QJNYop002420@svn.freebsd.org>
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Author: tuexen Date: Mon Oct 26 19:23:34 2009 New Revision: 198499 URL: http://svn.freebsd.org/changeset/base/198499 Log: Improve the round robin stream scheduler. Approved by: rrs (mentor) MFC after: 3 days Modified: head/sys/netinet/sctp_output.c Modified: head/sys/netinet/sctp_output.c ============================================================================== --- head/sys/netinet/sctp_output.c Mon Oct 26 19:10:54 2009 (r198498) +++ head/sys/netinet/sctp_output.c Mon Oct 26 19:23:34 2009 (r198499) @@ -7169,20 +7169,14 @@ sctp_select_a_stream(struct sctp_tcb *st /* 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); - } - 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); + 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); + } } return (strq); - }
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