memblock.current_limit specifies the highest address that memblock
could allocate. The next coming patches will introduce a lowest
limit to memblock, so rename it to current_limit_high.
Signed-off-by: Tang Chen <tangchen@xxxxxxxxxxxxxx>
Reviewed-by: Zhang Yanfei <zhangyanfei@xxxxxxxxxxxxxx>
---
include/linux/memblock.h | 2 +-
mm/memblock.c | 10 +++++-----
mm/nobootmem.c | 4 ++--
3 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index f388203..f0c0a91 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -35,7 +35,7 @@ struct memblock_type {
};
struct memblock {
- phys_addr_t current_limit;
+ phys_addr_t current_limit_high; /* upper boundary of accessable range */
struct memblock_type memory;
struct memblock_type reserved;
};
diff --git a/mm/memblock.c b/mm/memblock.c
index a847bfe..ff2226f 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -32,7 +32,7 @@ struct memblock memblock __initdata_memblock = {
.reserved.cnt = 1, /* empty dummy entry */
.reserved.max = INIT_MEMBLOCK_REGIONS,
- .current_limit = MEMBLOCK_ALLOC_ANYWHERE,
+ .current_limit_high = MEMBLOCK_ALLOC_ANYWHERE,
};
int memblock_debug __initdata_memblock;
@@ -104,7 +104,7 @@ phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t start,
/* pump up @end */
if (end == MEMBLOCK_ALLOC_ACCESSIBLE)
- end = memblock.current_limit;
+ end = memblock.current_limit_high;
/* avoid allocating the first page */
start = max_t(phys_addr_t, start, PAGE_SIZE);
@@ -240,11 +240,11 @@ static int __init_memblock memblock_double_array(struct memblock_type *type,
new_area_start = new_area_size = 0;
addr = memblock_find_in_range(new_area_start + new_area_size,
- memblock.current_limit,
+ memblock.current_limit_high,
new_alloc_size, PAGE_SIZE);
if (!addr && new_area_size)
addr = memblock_find_in_range(0,
- min(new_area_start, memblock.current_limit),
+ min(new_area_start, memblock.current_limit_high),
new_alloc_size, PAGE_SIZE);
new_array = addr ? __va(addr) : NULL;
@@ -979,7 +979,7 @@ void __init_memblock memblock_trim_memory(phys_addr_t align)
void __init_memblock memblock_set_current_limit(phys_addr_t limit)
{
- memblock.current_limit = limit;
+ memblock.current_limit_high = limit;
}
static void __init_memblock memblock_dump(struct memblock_type *type, char *name)
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index 61107cf..8cc163c 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -38,8 +38,8 @@ static void * __init __alloc_memory_core_early(int nid, u64 size, u64 align,
void *ptr;
u64 addr;
- if (limit > memblock.current_limit)
- limit = memblock.current_limit;
+ if (limit > memblock.current_limit_high)
+ limit = memblock.current_limit_high;
addr = memblock_find_in_range_node(goal, limit, size, align, nid);
if (!addr)
--
1.7.1
--
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