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authorAlexander Kuleshov <kuleshovmail@gmail.com>2016-01-15 02:20:42 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-01-15 03:00:49 +0300
commit8c9c1701c7c23a57ebfd1a0b27b87053ae43cfb5 (patch)
treec528eedae09fd65e037205aeb47b39e765370a85 /include/linux/memblock.h
parentf14516fbf0f6bec7d98c1cb5b5c73ccd2bb4a5e9 (diff)
downloadlinux-8c9c1701c7c23a57ebfd1a0b27b87053ae43cfb5.tar.xz
mm/memblock: introduce for_each_memblock_type()
We already have the for_each_memblock() macro in <linux/memblock.h> which provides ability to iterate over memblock regions of a known type. The for_each_memblock() macro allows us to pass the pointer to the struct memblock_type, instead we need to pass name of the type. This patch introduces a new macro for_each_memblock_type() which allows us iterate over memblock regions with the given type when the type is unknown. Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/memblock.h')
-rw-r--r--include/linux/memblock.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 3a092fba2eb2..c0c4208a286f 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -399,6 +399,11 @@ static inline unsigned long memblock_region_reserved_end_pfn(const struct memblo
region < (memblock.memblock_type.regions + memblock.memblock_type.cnt); \
region++)
+#define for_each_memblock_type(memblock_type, rgn) \
+ idx = 0; \
+ rgn = &memblock_type->regions[idx]; \
+ for (idx = 0; idx < memblock_type->cnt; \
+ idx++,rgn = &memblock_type->regions[idx])
#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
#define __init_memblock __meminit