bigfile/virtmem: vma_mmap_page: Don't skip mmap_page error silently

4cbd819c · Kirill Smelkov · c9cc7772 · 4cbd819c
Commit 4cbd819c authored Apr 14, 2020 by Kirill Smelkov
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bigfile/virtmem.c bigfile/virtmem.c +2 -2

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--- a/bigfile/virtmem.c
+++ b/bigfile/virtmem.c
@@ -938,8 +938,8 @@ static void vma_mmap_page(VMA *vma, Page *page) {
    pgoff_invma = page->f_pgoffset - vma->f_pgoffset;
    if (!bitmap_test_bit(vma->page_ismappedv, pgoff_invma)) {
-        // XXX err
+        void *mmapped = page_mmap(page, vma_page_addr(vma, page), prot);
-        page_mmap(page, vma_page_addr(vma, page), prot);
+        BUG_ON(!mmapped);
        bitmap_set_bit(vma->page_ismappedv, pgoff_invma);
        page_incref(page);
    }