vm_page_grab_valid(): clear *mp in case of pager denying page allocation
Same as it is done in other error return cases. Callers depend on error case returning NULL, e.g. vm_imgact_hold_page(). Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D37719
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@ -4713,8 +4713,10 @@ vm_page_grab_valid(vm_page_t *mp, vm_object_t object, vm_pindex_t pindex, int al
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*mp = NULL;
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return (VM_PAGER_FAIL);
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} else if ((m = vm_page_alloc(object, pindex, pflags)) == NULL) {
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if (!vm_pager_can_alloc_page(object, pindex))
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if (!vm_pager_can_alloc_page(object, pindex)) {
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*mp = NULL;
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return (VM_PAGER_AGAIN);
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}
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goto retrylookup;
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}
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