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page cache rewrite

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Matheus
2026-07-28 16:33:55 -03:00
parent ad1740738b
commit 31f9ae17cf
17 changed files with 494 additions and 608 deletions
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kernel-src/mm/range.c
-4
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@@ -165,9 +165,7 @@ void mm_destroy_range(mm_range_t *range, uintmax_t _offset, size_t size, int fla
} else if (arch_mmu_iswritable(current_mm_context()->pagetable, vaddr)) {
// dirty page cache mapping
arch_mmu_unmap(current_mm_context()->pagetable, vaddr);
VOP_LOCK(range->vnode);
mm_cache_make_dirty(mm_get_page(physical));
VOP_UNLOCK(range->vnode);
mm_release_page(physical);
} else {
// non dirty page mapping
@@ -212,9 +210,7 @@ static void change_mmu_range(mm_range_t *range, void *base, size_t size, mmuflag
// removing write permissions from a writeable dirty shared mapped page, mark it as dirty, as
// it won't be marked dirty upon a mm_unmap after this
page_t *page = mm_get_page(physical);
VOP_LOCK(range->vnode);
mm_cache_make_dirty(page);
VOP_UNLOCK(range->vnode);
}
// we will only change the mapping if the permissions decreased