diff options
| author | Artur Grabowski <art@cvs.openbsd.org> | 2001-08-11 10:57:23 +0000 |
|---|---|---|
| committer | Artur Grabowski <art@cvs.openbsd.org> | 2001-08-11 10:57:23 +0000 |
| commit | 7a180b0dffd8a6191dc39c284c4b43646bbe8ac6 (patch) | |
| tree | 5442aa1b4d2ff26b5330a6478a7d647080cc100a /sys/uvm/uvm_fault.c | |
| parent | 511fb2556ded7a7b5ce46090532eccce46d77468 (diff) | |
Various random fixes from NetBSD.
Including support for zeroing pages in the idle loop (not enabled yet).
Diffstat (limited to 'sys/uvm/uvm_fault.c')
| -rw-r--r-- | sys/uvm/uvm_fault.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/sys/uvm/uvm_fault.c b/sys/uvm/uvm_fault.c index ab60ff2a081..b848a3a3353 100644 --- a/sys/uvm/uvm_fault.c +++ b/sys/uvm/uvm_fault.c @@ -1,5 +1,5 @@ -/* $OpenBSD: uvm_fault.c,v 1.17 2001/07/26 19:37:13 art Exp $ */ -/* $NetBSD: uvm_fault.c,v 1.47 2000/01/11 06:57:50 chs Exp $ */ +/* $OpenBSD: uvm_fault.c,v 1.18 2001/08/11 10:57:22 art Exp $ */ +/* $NetBSD: uvm_fault.c,v 1.48 2000/04/10 01:17:41 thorpej Exp $ */ /* * @@ -1601,8 +1601,16 @@ Case2: #endif anon = uvm_analloc(); - if (anon) - pg = uvm_pagealloc(NULL, 0, anon, 0); + if (anon) { + /* + * In `Fill in data...' below, if + * uobjpage == PGO_DONTCARE, we want + * a zero'd, dirty page, so have + * uvm_pagealloc() do that for us. + */ + pg = uvm_pagealloc(NULL, 0, anon, + (uobjpage == PGO_DONTCARE) ? UVM_PGA_ZERO : 0); + } #ifdef __GNUC__ else pg = NULL; /* XXX: gcc */ @@ -1691,7 +1699,10 @@ Case2: } else { uvmexp.flt_przero++; - uvm_pagezero(pg); /* zero page [pg now dirty] */ + /* + * Page is zero'd and marked dirty by uvm_pagealloc() + * above. + */ UVMHIST_LOG(maphist," zero fill anon/page 0x%x/0%x", anon, pg, 0, 0); } |