Merge pull request #48 from daniel-wong-dfinity-org/round-UP-when-div…

…iding-size-by-page-size For WASM, `alloc` rounds UP when dividing size by page size.
alexcrichton · Feb 12, 2025 · 1006940 · 1006940
2 parents fb11660 + 07c57ef
commit 1006940
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/wasm.rs b/src/wasm.rs
@@ -18,7 +18,7 @@ impl System {
 
 unsafe impl Allocator for System {
     fn alloc(&self, size: usize) -> (*mut u8, usize, u32) {
-        let pages = size / self.page_size();
+        let pages = size.div_ceil(self.page_size());
         let prev = wasm::memory_grow(0, pages);
         if prev == usize::max_value() {
             return (ptr::null_mut(), 0, 0);