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Differential D23283 Diff 67175 head/sys/kern/kern_kcov.c

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head/sys/kern/kern_kcov.c

Show First 20 Lines • Show All 377 Lines • ▼ Show 20 Lines if ((info->kvaddr = kva_alloc(info->bufsize)) == 0)
return (ENOMEM); return (ENOMEM);
info->bufobj = vm_pager_allocate(OBJT_PHYS, 0, info->bufsize, info->bufobj = vm_pager_allocate(OBJT_PHYS, 0, info->bufsize,
PROT_READ | PROT_WRITE, 0, curthread->td_ucred); PROT_READ | PROT_WRITE, 0, curthread->td_ucred);
VM_OBJECT_WLOCK(info->bufobj); VM_OBJECT_WLOCK(info->bufobj);
for (n = 0; n < pages; n++) { for (n = 0; n < pages; n++) {
m = vm_page_grab(info->bufobj, n, m = vm_page_grab(info->bufobj, n,
VM_ALLOC_NOBUSY | VM_ALLOC_ZERO | VM_ALLOC_WIRED); VM_ALLOC_ZERO | VM_ALLOC_WIRED);
m->valid = VM_PAGE_BITS_ALL; vm_page_valid(m);
vm_page_xunbusy(m);
pmap_qenter(info->kvaddr + n * PAGE_SIZE, &m, 1); pmap_qenter(info->kvaddr + n * PAGE_SIZE, &m, 1);
} }
VM_OBJECT_WUNLOCK(info->bufobj); VM_OBJECT_WUNLOCK(info->bufobj);
info->entries = entries; info->entries = entries;
return (0); return (0);
} }
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