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-rw-r--r--src/runtime/mcentral.go2
-rw-r--r--src/runtime/mgcsweep.go2
-rw-r--r--src/runtime/mheap.go8
3 files changed, 8 insertions, 4 deletions
diff --git a/src/runtime/mcentral.go b/src/runtime/mcentral.go
index 9ca8e5d222..baede31405 100644
--- a/src/runtime/mcentral.go
+++ b/src/runtime/mcentral.go
@@ -244,7 +244,7 @@ func (c *mcentral) freeSpan(s *mspan, preserve bool, wasempty bool) bool {
c.nonempty.remove(s)
unlock(&c.lock)
- mheap_.freeSpan(s, 0)
+ mheap_.freeSpan(s, false)
return true
}
diff --git a/src/runtime/mgcsweep.go b/src/runtime/mgcsweep.go
index 00950aede2..104bd868fa 100644
--- a/src/runtime/mgcsweep.go
+++ b/src/runtime/mgcsweep.go
@@ -366,7 +366,7 @@ func (s *mspan) sweep(preserve bool) bool {
s.limit = 0 // prevent mlookup from finding this span
sysFault(unsafe.Pointer(s.base()), size)
} else {
- mheap_.freeSpan(s, 1)
+ mheap_.freeSpan(s, true)
}
c.local_nlargefree++
c.local_largefree += size
diff --git a/src/runtime/mheap.go b/src/runtime/mheap.go
index 1d672cdf21..48b3f5364a 100644
--- a/src/runtime/mheap.go
+++ b/src/runtime/mheap.go
@@ -945,7 +945,10 @@ func (h *mheap) grow(npage uintptr) bool {
}
// Free the span back into the heap.
-func (h *mheap) freeSpan(s *mspan, acct int32) {
+//
+// large must match the value of large passed to mheap.alloc. This is
+// used for accounting.
+func (h *mheap) freeSpan(s *mspan, large bool) {
systemstack(func() {
mp := getg().m
lock(&h.lock)
@@ -959,7 +962,8 @@ func (h *mheap) freeSpan(s *mspan, acct int32) {
bytes := s.npages << _PageShift
msanfree(base, bytes)
}
- if acct != 0 {
+ if large {
+ // Match accounting done in mheap.alloc.
memstats.heap_objects--
}
if gcBlackenEnabled != 0 {