From f98eeb4eb1c52de89dcefeb538029bcecc6dd42d Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Wed, 9 Jan 2008 11:27:23 -0600 Subject: [POWERPC] Fix handling of memreserve if the range lands in highmem There were several issues if a memreserve range existed and happened to be in highmem: * The bootmem allocator is only aware of lowmem so calling reserve_bootmem with a highmem address would cause a BUG_ON * All highmem pages were provided to the buddy allocator Added a lmb_is_reserved() api that we now use to determine if a highem page should continue to be PageReserved or provided to the buddy allocator. Also, we incorrectly reported the amount of pages reserved since all highmem pages are initally marked reserved and we clear the PageReserved flag as we "free" up the highmem pages. Signed-off-by: Kumar Gala --- include/asm-powerpc/lmb.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/asm-powerpc/lmb.h b/include/asm-powerpc/lmb.h index b5f9f4c9c29..5d1dc48a0bb 100644 --- a/include/asm-powerpc/lmb.h +++ b/include/asm-powerpc/lmb.h @@ -51,6 +51,7 @@ extern unsigned long __init __lmb_alloc_base(unsigned long size, extern unsigned long __init lmb_phys_mem_size(void); extern unsigned long __init lmb_end_of_DRAM(void); extern void __init lmb_enforce_memory_limit(unsigned long memory_limit); +extern int __init lmb_is_reserved(unsigned long addr); extern void lmb_dump_all(void); -- cgit v1.2.3-70-g09d2