diff options
Diffstat (limited to 'src/pkg/runtime/lfstack.c')
| -rw-r--r-- | src/pkg/runtime/lfstack.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/pkg/runtime/lfstack.c b/src/pkg/runtime/lfstack.c index 1d48491aac..140384d3dc 100644 --- a/src/pkg/runtime/lfstack.c +++ b/src/pkg/runtime/lfstack.c @@ -29,10 +29,10 @@ runtime·lfstackpush(uint64 *head, LFNode *node) node->pushcnt++; new = (uint64)(uintptr)node|(((uint64)node->pushcnt&CNT_MASK)<<PTR_BITS); - old = runtime·atomicload64(head); for(;;) { + old = runtime·atomicload64(head); node->next = (LFNode*)(uintptr)(old&PTR_MASK); - if(runtime·cas64(head, &old, new)) + if(runtime·cas64(head, old, new)) break; } } @@ -43,8 +43,8 @@ runtime·lfstackpop(uint64 *head) LFNode *node, *node2; uint64 old, new; - old = runtime·atomicload64(head); for(;;) { + old = runtime·atomicload64(head); if(old == 0) return nil; node = (LFNode*)(uintptr)(old&PTR_MASK); @@ -52,7 +52,7 @@ runtime·lfstackpop(uint64 *head) new = 0; if(node2 != nil) new = (uint64)(uintptr)node2|(((uint64)node2->pushcnt&CNT_MASK)<<PTR_BITS); - if(runtime·cas64(head, &old, new)) + if(runtime·cas64(head, old, new)) return node; } } |