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Subject[PATCH -V8 08/16] hugetlb: Make some static variables global
Date
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>

We will use them later in hugetlb_cgroup.c

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---
include/linux/hugetlb.h | 5 +++++
mm/hugetlb.c | 7 ++-----
2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index ed550d8..4aca057 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -21,6 +21,11 @@ struct hugepage_subpool {
long max_hpages, used_hpages;
};

+extern spinlock_t hugetlb_lock;
+extern int hugetlb_max_hstate;
+#define for_each_hstate(h) \
+ for ((h) = hstates; (h) < &hstates[hugetlb_max_hstate]; (h)++)
+
struct hugepage_subpool *hugepage_new_subpool(long nr_blocks);
void hugepage_put_subpool(struct hugepage_subpool *spool);

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index b5b6e15..e899a2d 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -35,7 +35,7 @@ const unsigned long hugetlb_zero = 0, hugetlb_infinity = ~0UL;
static gfp_t htlb_alloc_mask = GFP_HIGHUSER;
unsigned long hugepages_treat_as_movable;

-static int hugetlb_max_hstate;
+int hugetlb_max_hstate;
unsigned int default_hstate_idx;
struct hstate hstates[HUGE_MAX_HSTATE];

@@ -46,13 +46,10 @@ static struct hstate * __initdata parsed_hstate;
static unsigned long __initdata default_hstate_max_huge_pages;
static unsigned long __initdata default_hstate_size;

-#define for_each_hstate(h) \
- for ((h) = hstates; (h) < &hstates[hugetlb_max_hstate]; (h)++)
-
/*
* Protects updates to hugepage_freelists, nr_huge_pages, and free_huge_pages
*/
-static DEFINE_SPINLOCK(hugetlb_lock);
+DEFINE_SPINLOCK(hugetlb_lock);

static inline void unlock_or_release_subpool(struct hugepage_subpool *spool)
{
--
1.7.10


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