This patch fixes a problem with reserving memory during boot up of a kernel built for non-default location. Currently boot memory allocator reserves the memory required by kernel image, boot allocaotor bitmap etc. It assumes that kernel is loaded at 1MB (HIGH_MEMORY hard coded to 1024*1024). But kernel can be built for non-default locatoin, hence existing hardcoding will lead to reserving unnecessary memory. This patch fixes it.
Signed-off-by: Vivek Goyal <[EMAIL PROTECTED]> --- linux-2.6.11-mm3-vivek/arch/i386/kernel/setup.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff -puN arch/i386/kernel/setup.c~x86-nondefault-kernel-reserve-bootmem-fix arch/i386/kernel/setup.c --- linux-2.6.11-mm3/arch/i386/kernel/setup.c~x86-nondefault-kernel-reserve-bootmem-fix 2005-03-15 14:15:25.391856008 +0530 +++ linux-2.6.11-mm3-vivek/arch/i386/kernel/setup.c 2005-03-15 14:16:12.780651816 +0530 @@ -1135,8 +1135,8 @@ void __init setup_bootmem_allocator(void * the (very unlikely) case of us accidentally initializing the * bootmem allocator with an invalid RAM area. */ - reserve_bootmem(HIGH_MEMORY, (PFN_PHYS(min_low_pfn) + - bootmap_size + PAGE_SIZE-1) - (HIGH_MEMORY)); + reserve_bootmem(__PHYSICAL_START, (PFN_PHYS(min_low_pfn) + + bootmap_size + PAGE_SIZE-1) - (__PHYSICAL_START)); /* * reserve physical page 0 - it's a special BIOS page on many boxes, _
