[dev.garbage] runtime: remove unused head/end arguments from freeSpan

These used to be used for the list of newly freed objects, but that's
no longer a thing.

Change-Id: I5a4503137b74ec0eae5372ca271b1aa0b32df074
Reviewed-on: https://go-review.googlesource.com/22557
Reviewed-by: Rick Hudson <rlh@golang.org>
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>

diff --git a/src/runtime/mcentral.go b/src/runtime/mcentral.go
index bbbfb18fbf88a5ce9e9f2aa22d857dc0ab94a9bc..5baaef99f8d09db0683dabcba6e2dc9e02696a36 100644 (file)
--- a/src/runtime/mcentral.go
+++ b/src/runtime/mcentral.go
@@ -160,7 +160,7 @@ func (c *mcentral) uncacheSpan(s *mspan) {
 // freeSpan returns true if s was returned to the heap.
 // If preserve=true, it does not move s (the caller
 // must take care of it).
-func (c *mcentral) freeSpan(s *mspan, start gclinkptr, end gclinkptr, preserve bool, wasempty bool) bool {
+func (c *mcentral) freeSpan(s *mspan, preserve bool, wasempty bool) bool {
        if s.incache {
                throw("freeSpan given cached span")
        }

diff --git a/src/runtime/mgcsweep.go b/src/runtime/mgcsweep.go
index b1d6234af4d3eddcc4d5fed94040fc566ced601a..084d0a71c16f9329fc2738981d7ccfecbc12dcf1 100644 (file)
--- a/src/runtime/mgcsweep.go
+++ b/src/runtime/mgcsweep.go
@@ -187,8 +187,6 @@ func (s *mspan) sweep(preserve bool) bool {
        res := false
        nfree := 0
 
-       var head, end gclinkptr
-
        c := _g_.m.mcache
        freeToHeap := false
 
@@ -292,7 +290,7 @@ func (s *mspan) sweep(preserve bool) bool {
 
        if nfree > 0 && cl != 0 {
                c.local_nsmallfree[cl] += uintptr(nfree)
-               res = mheap_.central[cl].mcentral.freeSpan(s, head, end, preserve, wasempty)
+               res = mheap_.central[cl].mcentral.freeSpan(s, preserve, wasempty)
                // MCentral_FreeSpan updates sweepgen
        } else if freeToHeap {
                // Free large span to heap