runtime: rename mspan.stackfreelist -> manualFreeList
We're going to use this free list for other types of manually-managed
memory in the heap.
For #19325.
Change-Id: Ib7e682295133eabfddf3a84f44db43d937bfdd9c
Reviewed-on: https://go-review.googlesource.com/38575
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rick Hudson <rlh@golang.org>
diff --git a/src/runtime/stack.go b/src/runtime/stack.go
index b839727..9e00edd 100644
--- a/src/runtime/stack.go
+++ b/src/runtime/stack.go
@@ -193,24 +193,24 @@
if s.allocCount != 0 {
throw("bad allocCount")
}
- if s.stackfreelist.ptr() != nil {
- throw("bad stackfreelist")
+ if s.manualFreeList.ptr() != nil {
+ throw("bad manualFreeList")
}
s.elemsize = _FixedStack << order
for i := uintptr(0); i < _StackCacheSize; i += s.elemsize {
x := gclinkptr(s.base() + i)
- x.ptr().next = s.stackfreelist
- s.stackfreelist = x
+ x.ptr().next = s.manualFreeList
+ s.manualFreeList = x
}
list.insert(s)
}
- x := s.stackfreelist
+ x := s.manualFreeList
if x.ptr() == nil {
throw("span has no free stacks")
}
- s.stackfreelist = x.ptr().next
+ s.manualFreeList = x.ptr().next
s.allocCount++
- if s.stackfreelist.ptr() == nil {
+ if s.manualFreeList.ptr() == nil {
// all stacks in s are allocated.
list.remove(s)
}
@@ -223,12 +223,12 @@
if s.state != _MSpanManual {
throw("freeing stack not in a stack span")
}
- if s.stackfreelist.ptr() == nil {
+ if s.manualFreeList.ptr() == nil {
// s will now have a free stack
stackpool[order].insert(s)
}
- x.ptr().next = s.stackfreelist
- s.stackfreelist = x
+ x.ptr().next = s.manualFreeList
+ s.manualFreeList = x
s.allocCount--
if gcphase == _GCoff && s.allocCount == 0 {
// Span is completely free. Return it to the heap
@@ -247,7 +247,7 @@
//
// By not freeing, we prevent step #4 until GC is done.
stackpool[order].remove(s)
- s.stackfreelist = 0
+ s.manualFreeList = 0
mheap_.freeStack(s)
}
}
@@ -1165,7 +1165,7 @@
next := s.next
if s.allocCount == 0 {
list.remove(s)
- s.stackfreelist = 0
+ s.manualFreeList = 0
mheap_.freeStack(s)
}
s = next
