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runtime: refactor mallocgc

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Make it accept type, combine flags.
Several reasons for the change:
1. mallocgc and settype must be atomic wrt GC
2. settype is called from only one place now
3. it will help performance (eventually settype
functionality must be combined with markallocated)
4. flags are easier to read now (no mallocgc(sz, 0, 1, 0) anymore)

R=golang-dev, iant, nightlyone, rsc, dave, khr, bradfitz, r
CC=golang-dev
https://golang.org/cl/10136043
This commit is contained in:
Dmitriy Vyukov 2013-07-26 21:17:24 +04:00
parent a0f74093b2
commit f8a850b250
9 changed files with 62 additions and 119 deletions
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2
src/pkg/runtime/stack.c
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@ -105,7 +105,7 @@ runtime·stackalloc(uint32 n)
m->stackinuse++;
return v;
}
return runtime·mallocgc(n, FlagNoProfiling|FlagNoGC, 0, 0);
return runtime·mallocgc(n, 0, FlagNoProfiling|FlagNoGC|FlagNoZero|FlagNoInvokeGC);
}
void