Date: Thu, 27 Dec 2012 12:53:46 +0000 (UTC) From: Attilio Rao <attilio@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r244733 - head/sys/sys Message-ID: <201212271253.qBRCrkwp080595@svn.freebsd.org>
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Author: attilio Date: Thu Dec 27 12:53:46 2012 New Revision: 244733 URL: http://svnweb.freebsd.org/changeset/base/244733 Log: Remove an unused var. Sponsored by: EMC / Isilon storage division MFC after: 3 days Modified: head/sys/sys/buf_ring.h Modified: head/sys/sys/buf_ring.h ============================================================================== --- head/sys/sys/buf_ring.h Thu Dec 27 12:36:58 2012 (r244732) +++ head/sys/sys/buf_ring.h Thu Dec 27 12:53:46 2012 (r244733) @@ -77,7 +77,6 @@ buf_ring_enqueue(struct buf_ring *br, vo { uint32_t prod_head, prod_next; uint32_t cons_tail; - int success; #ifdef DEBUG_BUFRING int i; for (i = br->br_cons_head; i != br->br_prod_head; @@ -98,10 +97,7 @@ buf_ring_enqueue(struct buf_ring *br, vo critical_exit(); return (ENOBUFS); } - - success = atomic_cmpset_int(&br->br_prod_head, prod_head, - prod_next); - } while (success == 0); + } while (!atomic_cmpset_int(&br->br_prod_head, prod_head, prod_next)); #ifdef DEBUG_BUFRING if (br->br_ring[prod_head] != NULL) panic("dangling value in enqueue");
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