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vm: only suspend and resume process with vmctls in pt_writemap in smp mode

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Ben Gras 2011-02-11 14:56:52 +00:00
parent 341f8682f2
commit c7b2b11ec2
1 changed files with 4 additions and 0 deletions
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4
servers/vm/arch/i386/pagetable.c
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@ -656,6 +656,7 @@ PUBLIC int pt_writemap(struct vmproc * vmp,
int verify = 0;
int ret = OK;
#ifdef CONFIG_SMP
/* FIXME
* don't do it everytime, stop the process only on the first change and
* resume the execution on the last change. Do in a wrapper of this
@ -664,6 +665,7 @@ PUBLIC int pt_writemap(struct vmproc * vmp,
if (vmp && vmp->vm_endpoint != NONE && vmp->vm_endpoint != VM_PROC_NR &&
!(vmp->vm_flags & VMF_EXITING))
sys_vmctl(vmp->vm_endpoint, VMCTL_VMINHIBIT_SET, 0);
#endif
if(writemapflags & WMF_VERIFY)
verify = 1;
@ -761,9 +763,11 @@ PUBLIC int pt_writemap(struct vmproc * vmp,
resume_exit:
#ifdef CONFIG_SMP
if (vmp && vmp->vm_endpoint != NONE && vmp->vm_endpoint != VM_PROC_NR &&
!(vmp->vm_flags & VMF_EXITING))
sys_vmctl(vmp->vm_endpoint, VMCTL_VMINHIBIT_CLEAR, 0);
#endif
return ret;
}