diff options
Diffstat (limited to 'tools/xentrace/xentrace.c')
| -rw-r--r-- | tools/xentrace/xentrace.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/xentrace/xentrace.c b/tools/xentrace/xentrace.c index 0879576645..7f394d2af0 100644 --- a/tools/xentrace/xentrace.c +++ b/tools/xentrace/xentrace.c @@ -384,8 +384,8 @@ int monitor_tbufs(int outfd) /* Read window information only once. */ cons = meta[i]->cons; prod = meta[i]->prod; - rmb(); /* read prod, then read item. */ - + xen_rmb(); /* read prod, then read item. */ + if ( cons == prod ) continue; @@ -428,7 +428,7 @@ int monitor_tbufs(int outfd) outfd); } - mb(); /* read buffer, then update cons. */ + xen_mb(); /* read buffer, then update cons. */ meta[i]->cons = prod; } |