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authorKumar Gala <galak@kernel.crashing.org>2008-01-09 12:27:23 -0500
committerKumar Gala <galak@kernel.crashing.org>2008-01-23 20:29:08 -0500
commitf98eeb4eb1c52de89dcefeb538029bcecc6dd42d (patch)
treeda91da9e329d35360ece38eb7f9fbcbc740cec63 /include
parent52920df4aa9dd25836b8ed4dc0b177ea14c09e53 (diff)
[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 <galak@kernel.crashing.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-powerpc/lmb.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-powerpc/lmb.h b/include/asm-powerpc/lmb.h
index b5f9f4c9c294..5d1dc48a0bb8 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,
51extern unsigned long __init lmb_phys_mem_size(void); 51extern unsigned long __init lmb_phys_mem_size(void);
52extern unsigned long __init lmb_end_of_DRAM(void); 52extern unsigned long __init lmb_end_of_DRAM(void);
53extern void __init lmb_enforce_memory_limit(unsigned long memory_limit); 53extern void __init lmb_enforce_memory_limit(unsigned long memory_limit);
54extern int __init lmb_is_reserved(unsigned long addr);
54 55
55extern void lmb_dump_all(void); 56extern void lmb_dump_all(void);
56 57