Messages in this thread Patch in this message | | | From | Tang Chen <> | Subject | [PATCH 04/11] memblock: Introduce memblock_set_current_limit_low() to set lower limit of memblock. | Date | Tue, 27 Aug 2013 17:37:41 +0800 |
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Corresponding to memblock_set_current_limit_high(), we introduce memblock_set_current_limit_low() to set the lowest limit for memblock.
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com> Reviewed-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> --- include/linux/memblock.h | 9 ++++++++- mm/memblock.c | 5 +++++ 2 files changed, 13 insertions(+), 1 deletions(-)
diff --git a/include/linux/memblock.h b/include/linux/memblock.h index 40eb18e..cabd685 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -174,6 +174,14 @@ static inline void memblock_dump_all(void) } /** + * memblock_set_current_limit_low - Set the current allocation lower limit to + * allow limiting allocations to what is currently + * accessible during boot + * @limit: New lower limit value (physical address) + */ +void memblock_set_current_limit_low(phys_addr_t limit); + +/** * memblock_set_current_limit_high - Set the current allocation upper limit to * allow limiting allocations to what is currently * accessible during boot @@ -181,7 +189,6 @@ static inline void memblock_dump_all(void) */ void memblock_set_current_limit_high(phys_addr_t limit); - /* * pfn conversion functions * diff --git a/mm/memblock.c b/mm/memblock.c index 0dd5387..54c1c2e 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -989,6 +989,11 @@ void __init_memblock memblock_trim_memory(phys_addr_t align) } } +void __init_memblock memblock_set_current_limit_low(phys_addr_t limit) +{ + memblock.current_limit_low = limit; +} + void __init_memblock memblock_set_current_limit_high(phys_addr_t limit) { memblock.current_limit_high = limit; -- 1.7.1
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