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Date: Fri, 20 Jan 2017 13:34:56 +0100
From: Heiko Carstens <heiko.carstens@...ibm.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/3] memblock: embed memblock type name within struct memblock_type
Provide the name of each memblock type with struct memblock_type. This
allows to get rid of the function memblock_type_name() and duplicating
the type names in __memblock_dump_all().
The only memblock_type usage out of mm/memblock.c seems to be
arch/s390/kernel/crash_dump.c. While at it, give it a name.
Signed-off-by: Heiko Carstens <heiko.carstens@...ibm.com>
---
arch/s390/kernel/crash_dump.c | 1 +
include/linux/memblock.h | 1 +
mm/memblock.c | 35 +++++++++++------------------------
3 files changed, 13 insertions(+), 24 deletions(-)
diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
index f9293bfefb7f..9c9440dc253a 100644
--- a/arch/s390/kernel/crash_dump.c
+++ b/arch/s390/kernel/crash_dump.c
@@ -31,6 +31,7 @@ static struct memblock_type oldmem_type = {
.max = 1,
.total_size = 0,
.regions = &oldmem_region,
+ .name = "oldmem",
};
struct save_area {
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 5b759c9acf97..8dee5ec80adf 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -42,6 +42,7 @@ struct memblock_type {
unsigned long max; /* size of the allocated array */
phys_addr_t total_size; /* size of all regions */
struct memblock_region *regions;
+ char *name;
};
struct memblock {
diff --git a/mm/memblock.c b/mm/memblock.c
index fbaaf713827c..82d21e598e8c 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -35,15 +35,18 @@ struct memblock memblock __initdata_memblock = {
.memory.regions = memblock_memory_init_regions,
.memory.cnt = 1, /* empty dummy entry */
.memory.max = INIT_MEMBLOCK_REGIONS,
+ .memory.name = "memory",
.reserved.regions = memblock_reserved_init_regions,
.reserved.cnt = 1, /* empty dummy entry */
.reserved.max = INIT_MEMBLOCK_REGIONS,
+ .reserved.name = "reserved",
#ifdef CONFIG_HAVE_MEMBLOCK_PHYS_MAP
.physmem.regions = memblock_physmem_init_regions,
.physmem.cnt = 1, /* empty dummy entry */
.physmem.max = INIT_PHYSMEM_REGIONS,
+ .physmem.name = "physmem",
#endif
.bottom_up = false,
@@ -64,22 +67,6 @@ ulong __init_memblock choose_memblock_flags(void)
return system_has_some_mirror ? MEMBLOCK_MIRROR : MEMBLOCK_NONE;
}
-/* inline so we don't get a warning when pr_debug is compiled out */
-static __init_memblock const char *
-memblock_type_name(struct memblock_type *type)
-{
- if (type == &memblock.memory)
- return "memory";
- else if (type == &memblock.reserved)
- return "reserved";
-#ifdef CONFIG_HAVE_MEMBLOCK_PHYS_MAP
- else if (type == &memblock.physmem)
- return "physmem";
-#endif
- else
- return "unknown";
-}
-
/* adjust *@...e so that (@base + *@...e) doesn't overflow, return new size */
static inline phys_addr_t memblock_cap_size(phys_addr_t base, phys_addr_t *size)
{
@@ -406,12 +393,12 @@ static int __init_memblock memblock_double_array(struct memblock_type *type,
}
if (!addr) {
pr_err("memblock: Failed to double %s array from %ld to %ld entries !\n",
- memblock_type_name(type), type->max, type->max * 2);
+ type->name, type->max, type->max * 2);
return -1;
}
memblock_dbg("memblock: %s is doubled to %ld at [%#010llx-%#010llx]",
- memblock_type_name(type), type->max * 2, (u64)addr,
+ type->name, type->max * 2, (u64)addr,
(u64)addr + new_size - 1);
/*
@@ -1675,14 +1662,14 @@ phys_addr_t __init_memblock memblock_get_current_limit(void)
return memblock.current_limit;
}
-static void __init_memblock memblock_dump(struct memblock_type *type, char *name)
+static void __init_memblock memblock_dump(struct memblock_type *type)
{
unsigned long long base, size;
unsigned long flags;
int idx;
struct memblock_region *rgn;
- pr_info(" %s.cnt = 0x%lx\n", name, type->cnt);
+ pr_info(" %s.cnt = 0x%lx\n", type->name, type->cnt);
for_each_memblock_type(type, rgn) {
char nid_buf[32] = "";
@@ -1696,7 +1683,7 @@ static void __init_memblock memblock_dump(struct memblock_type *type, char *name
memblock_get_region_node(rgn));
#endif
pr_info(" %s[%#x]\t[%#016llx-%#016llx], %#llx bytes%s flags: %#lx\n",
- name, idx, base, base + size - 1, size, nid_buf, flags);
+ type->name, idx, base, base + size - 1, size, nid_buf, flags);
}
}
@@ -1707,10 +1694,10 @@ void __init_memblock __memblock_dump_all(void)
(unsigned long long)memblock.memory.total_size,
(unsigned long long)memblock.reserved.total_size);
- memblock_dump(&memblock.memory, "memory");
- memblock_dump(&memblock.reserved, "reserved");
+ memblock_dump(&memblock.memory);
+ memblock_dump(&memblock.reserved);
#ifdef CONFIG_HAVE_MEMBLOCK_PHYS_MAP
- memblock_dump(&memblock.physmem, "physmem");
+ memblock_dump(&memblock.physmem);
#endif
}
--
2.8.4
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