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vm: implement private and shared address space mappings

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whether a mapping is private or shared determines how the mapping is handled
when a task is duplicated.
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max 🍓
2026-04-21 21:12:00 +01:00
parent 8b7382fa13
commit 278fe39c0d
9 changed files with 63 additions and 24 deletions
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vm/vm-object.c
+1 -2
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@@ -290,8 +290,7 @@ struct vm_object *vm_object_duplicate_cow(struct vm_object *vmo)
memcpy(out->vo_name, vmo->vo_name, sizeof out->vo_name);
out->vo_flags = vmo->vo_flags | VMO_LAZY_ATTACH;
out->vo_ctrl = vmo->vo_ctrl;
out->vo_key = 0;
out->vo_src_key = vmo->vo_key;
out->vo_key = vmo->vo_key;
out->vo_prot = vmo->vo_prot;
out->vo_size = vmo->vo_size;
memcpy(out->vo_name, vmo->vo_name, sizeof vmo->vo_name);