diff options
| author | dg <dg@FreeBSD.org> | 1995-01-15 09:06:23 +0000 |
|---|---|---|
| committer | dg <dg@FreeBSD.org> | 1995-01-15 09:06:23 +0000 |
| commit | 3a5df73fbd191b4c3bf7bf10acb8dad8120fedc3 (patch) | |
| tree | dcc61f284ed6bcd6b4632f3207ab95b455684d5f | |
| parent | 846706f1033d76d914060a43473effddda178eb2 (diff) | |
| download | FreeBSD-src-3a5df73fbd191b4c3bf7bf10acb8dad8120fedc3.zip FreeBSD-src-3a5df73fbd191b4c3bf7bf10acb8dad8120fedc3.tar.gz | |
Fixed some page table reference count problems; these changes may not be
complete, but should be closer to correct than before.
| -rw-r--r-- | sys/amd64/amd64/pmap.c | 8 | ||||
| -rw-r--r-- | sys/i386/i386/pmap.c | 8 |
2 files changed, 10 insertions, 6 deletions
diff --git a/sys/amd64/amd64/pmap.c b/sys/amd64/amd64/pmap.c index 73934e5..eb72d02 100644 --- a/sys/amd64/amd64/pmap.c +++ b/sys/amd64/amd64/pmap.c @@ -39,7 +39,7 @@ * SUCH DAMAGE. * * from: @(#)pmap.c 7.7 (Berkeley) 5/12/91 - * $Id: pmap.c,v 1.40 1995/01/09 16:04:38 davidg Exp $ + * $Id: pmap.c,v 1.41 1995/01/14 04:58:53 davidg Exp $ */ /* @@ -906,8 +906,8 @@ pmap_remove(pmap, sva, eva) pv = pa_to_pvh(pa); pmap_remove_entry(pmap, pv, sva); - pmap_unuse_pt(pmap, sva); } + pmap_unuse_pt(pmap, sva); pmap_update(); return; } @@ -981,6 +981,7 @@ pmap_remove(pmap, sva, eva) */ pa = ((int)oldpte) & PG_FRAME; if (!pmap_is_managed(pa)) { + pmap_unuse_pt(pmap, va); ++sva; continue; } @@ -1029,6 +1030,7 @@ pmap_remove_all(pa) /* * Not one of ours */ + /* XXX this makes pmap_page_protect(NONE) illegal for non-managed pages! */ if (!pmap_is_managed(pa)) return; @@ -1061,8 +1063,8 @@ pmap_remove_all(pa) } *pte = 0; + pmap_unuse_pt(pmap, va); } - pmap_unuse_pt(pmap, va); npv = pv->pv_next; if (npv) { diff --git a/sys/i386/i386/pmap.c b/sys/i386/i386/pmap.c index 73934e5..eb72d02 100644 --- a/sys/i386/i386/pmap.c +++ b/sys/i386/i386/pmap.c @@ -39,7 +39,7 @@ * SUCH DAMAGE. * * from: @(#)pmap.c 7.7 (Berkeley) 5/12/91 - * $Id: pmap.c,v 1.40 1995/01/09 16:04:38 davidg Exp $ + * $Id: pmap.c,v 1.41 1995/01/14 04:58:53 davidg Exp $ */ /* @@ -906,8 +906,8 @@ pmap_remove(pmap, sva, eva) pv = pa_to_pvh(pa); pmap_remove_entry(pmap, pv, sva); - pmap_unuse_pt(pmap, sva); } + pmap_unuse_pt(pmap, sva); pmap_update(); return; } @@ -981,6 +981,7 @@ pmap_remove(pmap, sva, eva) */ pa = ((int)oldpte) & PG_FRAME; if (!pmap_is_managed(pa)) { + pmap_unuse_pt(pmap, va); ++sva; continue; } @@ -1029,6 +1030,7 @@ pmap_remove_all(pa) /* * Not one of ours */ + /* XXX this makes pmap_page_protect(NONE) illegal for non-managed pages! */ if (!pmap_is_managed(pa)) return; @@ -1061,8 +1063,8 @@ pmap_remove_all(pa) } *pte = 0; + pmap_unuse_pt(pmap, va); } - pmap_unuse_pt(pmap, va); npv = pv->pv_next; if (npv) { |
