code review 10136043: runtime: refactor mallocgc

src/pkg/runtime/chan.c

 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
 #include "runtime.h"
 #include "arch_GOARCH.h"
 #include "type.h"
 #include "race.h"
 #include "malloc.h"
 
@@ skipping 89 matching lines @@
         // compiler checks this but be safe.
         if(elem->size >= (1<<16))
                 runtime·throw("makechan: invalid channel element type");
         if((sizeof(*c)%MAXALIGN) != 0 || elem->align > MAXALIGN)
                 runtime·throw("makechan: bad alignment");
 
         if(hint < 0 || (intgo)hint != hint || (elem->size > 0 && hint > MaxMem / elem->size))
                 runtime·panicstring("makechan: size out of range");
 
         // allocate memory in one call
-        c = (Hchan*)runtime·mal(sizeof(*c) + hint*elem->size);
+        c = (Hchan*)runtime·mallocgc(sizeof(*c) + hint*elem->size, (uintptr)t | TypeInfo_Chan, 0);
         c->elemsize = elem->size;
         c->elemalg = elem->alg;
         c->dataqsiz = hint;
-        runtime·settype(c, (uintptr)t | TypeInfo_Chan);
 
         if(debug)
                 runtime·printf("makechan: chan=%p; elemsize=%D; elemalg=%p; dataqsiz=%D\n",
                         c, (int64)elem->size, elem->alg, (int64)c->dataqsiz);
 
         return c;
 }
 
 // For reflect
 //      func makechan(typ *ChanType, size uint64) (chan)
@@ skipping 1232 matching lines @@
 }
 
 static void
 racesync(Hchan *c, SudoG *sg)
 {
         runtime·racerelease(chanbuf(c, 0));
         runtime·raceacquireg(sg->g, chanbuf(c, 0));
         runtime·racereleaseg(sg->g, chanbuf(c, 0));
         runtime·raceacquire(chanbuf(c, 0));
 }