Prev: memblock updates
Next: [PATCH 01/43] memblock: Fix memblock_is_region_reserved() to return a boolean
From: Benjamin Herrenschmidt on 6 Aug 2010 01:30
Signed-off-by: Benjamin Herrenschmidt <benh(a)kernel.crashing.org>
---
arch/sparc/mm/init_64.c | 16 ++++++----------
include/linux/memblock.h | 7 +++++--
mm/memblock.c | 13 ++++++++-----
3 files changed, 19 insertions(+), 17 deletions(-)

diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index dd68025..0883113 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -785,8 +785,7 @@ static int find_node(unsigned long addr)
return -1;
}

-static unsigned long long nid_range(unsigned long long start,
- unsigned long long end, int *nid)
+u64 memblock_nid_range(u64 start, u64 end, int *nid)
{
*nid = find_node(start);
start += PAGE_SIZE;
@@ -804,8 +803,7 @@ static unsigned long long nid_range(unsigned long long start,
return start;
}
#else
-static unsigned long long nid_range(unsigned long long start,
- unsigned long long end, int *nid)
+u64 memblock_nid_range(u64 start, u64 end, int *nid)
{
*nid = 0;
return end;
@@ -822,8 +820,7 @@ static void __init allocate_node_data(int nid)
struct pglist_data *p;

#ifdef CONFIG_NEED_MULTIPLE_NODES
- paddr = memblock_alloc_nid(sizeof(struct pglist_data),
- SMP_CACHE_BYTES, nid, nid_range);
+ paddr = memblock_alloc_nid(sizeof(struct pglist_data), SMP_CACHE_BYTES, nid);
if (!paddr) {
prom_printf("Cannot allocate pglist_data for nid[%d]\n", nid);
prom_halt();
@@ -843,8 +840,7 @@ static void __init allocate_node_data(int nid)
if (p->node_spanned_pages) {
num_pages = bootmem_bootmap_pages(p->node_spanned_pages);

- paddr = memblock_alloc_nid(num_pages << PAGE_SHIFT, PAGE_SIZE, nid,
- nid_range);
+ paddr = memblock_alloc_nid(num_pages << PAGE_SHIFT, PAGE_SIZE, nid);
if (!paddr) {
prom_printf("Cannot allocate bootmap for nid[%d]\n",
nid);
@@ -984,7 +980,7 @@ static void __init add_node_ranges(void)
unsigned long this_end;
int nid;

- this_end = nid_range(start, end, &nid);
+ this_end = memblock_nid_range(start, end, &nid);

numadbg("Adding active range nid[%d] "
"start[%lx] end[%lx]\n",
@@ -1317,7 +1313,7 @@ static void __init reserve_range_in_node(int nid, unsigned long start,
unsigned long this_end;
int n;

- this_end = nid_range(start, end, &n);
+ this_end = memblock_nid_range(start, end, &n);
if (n == nid) {
numadbg(" MATCH reserving range [%lx:%lx]\n",
start, this_end);
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 776c7d9..367dea6 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -46,8 +46,7 @@ extern long memblock_add(u64 base, u64 size);
extern long memblock_remove(u64 base, u64 size);
extern long __init memblock_free(u64 base, u64 size);
extern long __init memblock_reserve(u64 base, u64 size);
-extern u64 __init memblock_alloc_nid(u64 size, u64 align, int nid,
- u64 (*nid_range)(u64, u64, int *));
+extern u64 __init memblock_alloc_nid(u64 size, u64 align, int nid);
extern u64 __init memblock_alloc(u64 size, u64 align);
extern u64 __init memblock_alloc_base(u64 size,
u64, u64 max_addr);
@@ -63,6 +62,10 @@ extern int memblock_is_region_reserved(u64 base, u64 size);

extern void memblock_dump_all(void);

+/* Provided by the architecture */
+extern u64 memblock_nid_range(u64 start, u64 end, int *nid);
+
+
/*
* pfn conversion functions
*
diff --git a/mm/memblock.c b/mm/memblock.c
index 8a118b7..13807f2 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -319,7 +319,6 @@ static u64 __init memblock_alloc_nid_unreserved(u64 start, u64 end,
}

static u64 __init memblock_alloc_nid_region(struct memblock_region *mp,
- u64 (*nid_range)(u64, u64, int *),
u64 size, u64 align, int nid)
{
u64 start, end;
@@ -332,7 +331,7 @@ static u64 __init memblock_alloc_nid_region(struct memblock_region *mp,
u64 this_end;
int this_nid;

- this_end = nid_range(start, end, &this_nid);
+ this_end = memblock_nid_range(start, end, &this_nid);
if (this_nid == nid) {
u64 ret = memblock_alloc_nid_unreserved(start, this_end,
size, align);
@@ -345,8 +344,7 @@ static u64 __init memblock_alloc_nid_region(struct memblock_region *mp,
return ~(u64)0;
}

-u64 __init memblock_alloc_nid(u64 size, u64 align, int nid,
- u64 (*nid_range)(u64 start, u64 end, int *nid))
+u64 __init memblock_alloc_nid(u64 size, u64 align, int nid)
{
struct memblock_type *mem = &memblock.memory;
int i;
@@ -357,7 +355,6 @@ u64 __init memblock_alloc_nid(u64 size, u64 align, int nid,

for (i = 0; i < mem->cnt; i++) {
u64 ret = memblock_alloc_nid_region(&mem->regions[i],
- nid_range,
size, align, nid);
if (ret != ~(u64)0)
return ret;
@@ -531,3 +528,9 @@ int memblock_is_region_reserved(u64 base, u64 size)
return memblock_overlaps_region(&memblock.reserved, base, size) >= 0;
}

+u64 __weak memblock_nid_range(u64 start, u64 end, int *nid)
+{
+ *nid = 0;
+
+ return end;
+}
--
1.7.0.4

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Next: [PATCH 01/43] memblock: Fix memblock_is_region_reserved() to return a boolean