提交 c3f38a38 编写于 作者: A Aneesh Kumar K.V 提交者: Linus Torvalds

hugetlb: make some static variables global

We will use them later in hugetlb_cgroup.c
Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: David Rientjes <rientjes@google.com>
Acked-by: NKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Hillf Danton <dhillf@gmail.com>
Reviewed-by: NMichal Hocko <mhocko@suse.cz>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
上级 0edaecfa
...@@ -21,6 +21,11 @@ struct hugepage_subpool { ...@@ -21,6 +21,11 @@ struct hugepage_subpool {
long max_hpages, used_hpages; long max_hpages, used_hpages;
}; };
extern spinlock_t hugetlb_lock;
extern int hugetlb_max_hstate __read_mostly;
#define for_each_hstate(h) \
for ((h) = hstates; (h) < &hstates[hugetlb_max_hstate]; (h)++)
struct hugepage_subpool *hugepage_new_subpool(long nr_blocks); struct hugepage_subpool *hugepage_new_subpool(long nr_blocks);
void hugepage_put_subpool(struct hugepage_subpool *spool); void hugepage_put_subpool(struct hugepage_subpool *spool);
......
...@@ -35,7 +35,7 @@ const unsigned long hugetlb_zero = 0, hugetlb_infinity = ~0UL; ...@@ -35,7 +35,7 @@ const unsigned long hugetlb_zero = 0, hugetlb_infinity = ~0UL;
static gfp_t htlb_alloc_mask = GFP_HIGHUSER; static gfp_t htlb_alloc_mask = GFP_HIGHUSER;
unsigned long hugepages_treat_as_movable; unsigned long hugepages_treat_as_movable;
static int hugetlb_max_hstate; int hugetlb_max_hstate __read_mostly;
unsigned int default_hstate_idx; unsigned int default_hstate_idx;
struct hstate hstates[HUGE_MAX_HSTATE]; struct hstate hstates[HUGE_MAX_HSTATE];
...@@ -46,13 +46,10 @@ static struct hstate * __initdata parsed_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_max_huge_pages;
static unsigned long __initdata default_hstate_size; 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 * 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) static inline void unlock_or_release_subpool(struct hugepage_subpool *spool)
{ {
......
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