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| author |   Alexander Kuleshov <kuleshovmail@gmail.com> | 2016-01-14 15:20:42 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2016-01-14 16:00:49 -0800 |
| commit | 8c9c1701c7c23a57ebfd1a0b27b87053ae43cfb5 (patch) | |
| tree | c528eedae09fd65e037205aeb47b39e765370a85 /include/linux/memblock.h | |
| parent | mm/memblock: remove rgnbase and rgnsize variables (diff) | |
| download | wireguard-linux-8c9c1701c7c23a57ebfd1a0b27b87053ae43cfb5.tar.xz wireguard-linux-8c9c1701c7c23a57ebfd1a0b27b87053ae43cfb5.zip | |
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.h | 5 |
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 |