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MFC r207580:

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Handle busy status of the page in a way expected for pager_getpage().
Flush requested page, unbusy other pages, do not clear m->busy.
This commit is contained in:
Konstantin Belousov 2010-05-10 11:50:26 +00:00
parent 50669a65c7
commit 70020ca01e
1 changed files with 4 additions and 4 deletions
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8
sys/vm/phys_pager.c
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@ -152,10 +152,10 @@ phys_pager_getpages(vm_object_t object, vm_page_t *m, int count, int reqpage)
KASSERT(m[i]->dirty == 0,
("phys_pager_getpages: dirty page %p", m[i]));
/* The requested page must remain busy, the others not. */
if (reqpage != i) {
m[i]->oflags &= ~VPO_BUSY;
m[i]->busy = 0;
}
if (i == reqpage)
vm_page_flash(m[i]);
else
vm_page_wakeup(m[i]);
}
return (VM_PAGER_OK);
}