Messages in this thread Patch in this message | | | Date | Fri, 30 Mar 2001 15:01:13 +0100 (BST) | From | Hugh Dickins <> | Subject | [PATCH] PAE zap_low_mappings no-op |
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i386 pgd_clear() is now a no-op with PAE as without: so zap_low_mappings() isn't zapping in the PAE case. Patch below against 2.4.3, or 2.4.2-ac28 offset 1 line.
Hugh
--- 2.4.3/arch/i386/mm/init.c Mon Mar 26 20:01:56 2001 +++ linux/arch/i386/mm/init.c Fri Mar 30 14:46:34 2001 @@ -309,14 +309,11 @@ * Zap initial low-memory mappings. * * Note that "pgd_clear()" doesn't do it for - * us in this case, because pgd_clear() is a - * no-op in the 2-level case (pmd_clear() is - * the thing that clears the page-tables in - * that case). + * us, because pgd_clear() is a no-op on i386. */ for (i = 0; i < USER_PTRS_PER_PGD; i++) #if CONFIG_X86_PAE - pgd_clear(swapper_pg_dir+i); + set_pgd(swapper_pg_dir+i, __pgd(1 + __pa(empty_zero_page))); #else set_pgd(swapper_pg_dir+i, __pgd(0)); #endif - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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