[RESEND,RFC,1/2] mm/memblock: add memblock_get_current_limit

Commit Message

Laura Abbott Jan. 15, 2014, 7:10 p.m. UTC

Appart from setting the limit of memblock, it's also useful to be able
to get the limit to avoid recalculating it every time. Add the function
to do so.

Signed-off-by: Laura Abbott <[e-mail]>
---
 include/linux/memblock.h |    2 ++
 mm/memblock.c            |    5 +++++
 2 files changed, 7 insertions(+), 0 deletions(-)

Patch

diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 1ef6636..8a20a51 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -252,6 +252,8 @@  static inline void memblock_dump_all(void)
 void memblock_set_current_limit(phys_addr_t limit);
 
 
+phys_addr_t memblock_get_current_limit(void);
+
 /*
  * pfn conversion functions
  *
diff --git a/mm/memblock.c b/mm/memblock.c
index 64ed243..0ec3fc7 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1423,6 +1423,11 @@  void __init_memblock memblock_set_current_limit(phys_addr_t limit)
 	memblock.current_limit = limit;
 }
 
+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)
 {
 	unsigned long long base, size;