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Date: Sun, 23 Mar 2008 00:16:49 -0700 From: Yinghai Lu <yhlu.kernel.send@...il.com> To: Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>, Thomas Gleixner <tglx@...utronix.de>, Andrew Morton <akpm@...ux-foundation.org>, Jesse Barnes <jbarnes@...tuousgeek.org> Cc: kernel list <linux-kernel@...r.kernel.org> Subject: [PATCH] x86_32: fix trim mtrr not to setup_memory two times we could call find_max_pfn() directly instead of setup_memory() to get max_pfn needed for mtrr trimming. otherwise setup_mempry is called two times... that is duplicated... Signed-off-by: Yinghai Lu <yhlu.kernel@...il.com> Index: linux-2.6/arch/x86/kernel/setup_32.c =================================================================== --- linux-2.6.orig/arch/x86/kernel/setup_32.c +++ linux-2.6/arch/x86/kernel/setup_32.c @@ -448,8 +448,6 @@ static unsigned long __init setup_memory */ min_low_pfn = PFN_UP(init_pg_tables_end); - find_max_pfn(); - max_low_pfn = find_max_low_pfn(); #ifdef CONFIG_HIGHMEM @@ -811,12 +809,13 @@ void __init setup_arch(char **cmdline_p) if (efi_enabled) efi_init(); - max_low_pfn = setup_memory(); - /* update e820 for memory not covered by WB MTRRs */ + find_max_pfn(); mtrr_bp_init(); if (mtrr_trim_uncached_memory(max_pfn)) - max_low_pfn = setup_memory(); + find_max_pfn(); + + max_low_pfn = setup_memory(); #ifdef CONFIG_VMI /* Index: linux-2.6/arch/x86/mm/discontig_32.c =================================================================== --- linux-2.6.orig/arch/x86/mm/discontig_32.c +++ linux-2.6/arch/x86/mm/discontig_32.c @@ -324,7 +324,6 @@ unsigned long __init setup_memory(void) * this space and use it to adjust the boundary between ZONE_NORMAL * and ZONE_HIGHMEM. */ - find_max_pfn(); get_memcfg_numa(); kva_pages = calculate_numa_remap_pages(); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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