diff options
| author | Keith Randall <khr@golang.org> | 2014-04-28 12:47:09 -0400 |
|---|---|---|
| committer | Keith Randall <khr@golang.org> | 2014-04-28 12:47:09 -0400 |
| commit | 29d1b211fdece82b3c4ccdb549ac394e71132643 (patch) | |
| tree | 9d5f7700ef6123ce0fe963c0cad4be13aa925f92 /src/pkg/runtime/proc.c | |
| parent | 573cfe95615faac43b9fc0841f13b74640584305 (diff) | |
| download | go-29d1b211fdece82b3c4ccdb549ac394e71132643.tar.xz | |
runtime: clean up scanning of Gs
Use a real type for Gs instead of scanning them conservatively.
Zero the schedlink pointer when it is dead.
Update #7820
LGTM=rsc
R=rsc, dvyukov
CC=golang-codereviews
https://golang.org/cl/89360043
Diffstat (limited to 'src/pkg/runtime/proc.c')
| -rw-r--r-- | src/pkg/runtime/proc.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/src/pkg/runtime/proc.c b/src/pkg/runtime/proc.c index 52b02d94bb..7500e8a5f9 100644 --- a/src/pkg/runtime/proc.c +++ b/src/pkg/runtime/proc.c @@ -687,6 +687,21 @@ runtime·allocm(P *p) return mp; } +static G* +allocg(void) +{ + G *gp; + static Type *gtype; + + if(gtype == nil) { + Eface e; + runtime·gc_g_ptr(&e); + gtype = ((PtrType*)e.type)->elem; + } + gp = runtime·cnew(gtype); + return gp; +} + static M* lockextra(bool nilokay); static void unlockextra(M*); @@ -1746,7 +1761,7 @@ runtime·malg(int32 stacksize) runtime·throw("runtime: bad stack.h"); } - newg = runtime·malloc(sizeof(G)); + newg = allocg(); if(stacksize >= 0) { stacksize = runtime·round2(StackSystem + stacksize); if(g == m->g0) { |