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initialize and propagate a cpu affinity (temporary fix)

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This fix is only intended to work an OpenMP program.
It is necessary to investigate behavior of linux and reimplement this
fix.
This commit is contained in:
NAKAMURA Gou
2014-10-20 14:25:15 +09:00
parent f195b9c675
commit 11947a4ce3
1 changed files with 10 additions and 0 deletions
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10
kernel/process.c
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@ -139,6 +139,15 @@ struct process *create_process(unsigned long user_pc)
memset(proc, 0, sizeof(struct process));
ihk_atomic_set(&proc->refcount, 2);
if (1) {
struct ihk_mc_cpu_info *infop;
int i;
infop = ihk_mc_get_cpu_info();
for (i = 0; i < infop->ncpus; ++i) {
CPU_SET(i, &proc->cpu_set);
}
}
proc->sighandler = kmalloc(sizeof(struct sig_handler), IHK_MC_AP_NOWAIT);
if(!proc->sighandler){
@ -215,6 +224,7 @@ struct process *clone_process(struct process *org, unsigned long pc,
memset(proc, 0, sizeof(struct process));
ihk_atomic_set(&proc->refcount, 2);
memcpy(&proc->cpu_set, &org->cpu_set, sizeof(proc->cpu_set));
/* NOTE: sp is the user mode stack! */
ihk_mc_init_user_process(&proc->ctx, &proc->uctx,