diff options
author | alc <alc@FreeBSD.org> | 1999-07-11 18:30:32 +0000 |
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committer | alc <alc@FreeBSD.org> | 1999-07-11 18:30:32 +0000 |
commit | c7285cff599c1a401d1c26faf50f32b276a23004 (patch) | |
tree | 588552e1e8a49ea53640d89b4e620a04b8e007c5 /sys/vm/vm_object.c | |
parent | c3265a3445aac316d7f2e40cc8c45c5b569474b0 (diff) | |
download | FreeBSD-src-c7285cff599c1a401d1c26faf50f32b276a23004.zip FreeBSD-src-c7285cff599c1a401d1c26faf50f32b276a23004.tar.gz |
Cleanup OBJ_ONEMAPPING management.
vm_map.c:
Don't set OBJ_ONEMAPPING on arbitrary vm objects. Only default
and swap type vm objects should have it set. vm_object_deallocate
already handles these cases.
vm_object.c:
If OBJ_ONEMAPPING isn't already clear in vm_object_shadow,
we are in trouble. Instead of clearing it, make it
an assertion that it is already clear.
Diffstat (limited to 'sys/vm/vm_object.c')
-rw-r--r-- | sys/vm/vm_object.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sys/vm/vm_object.c b/sys/vm/vm_object.c index 9166b06..d29b92b 100644 --- a/sys/vm/vm_object.c +++ b/sys/vm/vm_object.c @@ -61,7 +61,7 @@ * any improvements or extensions that they make and grant Carnegie the * rights to redistribute these changes. * - * $Id: vm_object.c,v 1.157 1999/06/20 21:47:00 alc Exp $ + * $Id: vm_object.c,v 1.158 1999/07/01 19:53:42 peter Exp $ */ /* @@ -876,6 +876,9 @@ vm_object_shadow(object, offset, length) source->type == OBJT_SWAP)) return; + KASSERT((source->flags & OBJ_ONEMAPPING) == 0, + ("vm_object_shadow: source object has OBJ_ONEMAPPING set.\n")); + /* * Allocate a new object with the given length */ @@ -896,7 +899,6 @@ vm_object_shadow(object, offset, length) result->backing_object = source; if (source) { TAILQ_INSERT_TAIL(&source->shadow_head, result, shadow_list); - vm_object_clear_flag(source, OBJ_ONEMAPPING); source->shadow_count++; source->generation++; result->pg_color = (source->pg_color + OFF_TO_IDX(*offset)) & PQ_L2_MASK; |