Author: rstone
Date: Fri Dec 2 15:38:34 2016
New Revision: 309414
URL: https://svnweb.freebsd.org/changeset/base/309414
Log:
Revert r309372
The bug intended to be fixed by r309372 was already addressed by r296178,
so revert my change.
Reported by: seph
Modified:
head/sys/sys/buf_ring.h
Modified: head/sys/sys/buf_ring.h
==============================================================================
--- head/sys/sys/buf_ring.h Fri Dec 2 14:44:45 2016 (r309413)
+++ head/sys/sys/buf_ring.h Fri Dec 2 15:38:34 2016 (r309414)
@@ -67,13 +67,11 @@ buf_ring_enqueue(struct buf_ring *br, vo
uint32_t prod_head, prod_next, cons_tail;
#ifdef DEBUG_BUFRING
int i;
- if (br->br_cons_head != br->br_prod_head) {
- for (i = (br->br_cons_head + 1) & br->br_cons_mask; i !=
br->br_prod_head;
- i = ((i + 1) & br->br_cons_mask))
- if(br->br_ring[i] == buf)
- panic("buf=%p already enqueue at %d prod=%d
cons=%d",
- buf, i, br->br_prod_tail, br->br_cons_tail);
- }
+ for (i = br->br_cons_head; i != br->br_prod_head;
+ i = ((i + 1) & br->br_cons_mask))
+ if(br->br_ring[i] == buf)
+ panic("buf=%p already enqueue at %d prod=%d cons=%d",
+ buf, i, br->br_prod_tail, br->br_cons_tail);
#endif
critical_enter();
do {
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