diff options
| author |   Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2012-07-31 16:42:00 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-31 18:42:40 -0700 |
| commit | 972dc4de13f667a7df27ee32573b2e6fc6cc8434 (patch) | |
| tree | 0d3ea1381b81700d17307fc6996a67bbabb7fac2 /include/linux/hugetlb.h | |
| parent | hugetlb: don't use ERR_PTR with VM_FAULT* values (diff) | |
| download | linux-dev-972dc4de13f667a7df27ee32573b2e6fc6cc8434.tar.xz linux-dev-972dc4de13f667a7df27ee32573b2e6fc6cc8434.zip | |
hugetlb: add an inline helper for finding hstate index
Add an inline helper and use it in the code.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Hillf Danton <dhillf@gmail.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/hugetlb.h')
| -rw-r--r-- | include/linux/hugetlb.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index d5d6bbe2259e..217f52859fa7 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -302,6 +302,11 @@ static inline unsigned hstate_index_to_shift(unsigned index) return hstates[index].order + PAGE_SHIFT; } +static inline int hstate_index(struct hstate *h) +{ + return h - hstates; +} + #else struct hstate {}; #define alloc_huge_page_node(h, nid) NULL @@ -320,6 +325,7 @@ static inline unsigned int pages_per_huge_page(struct hstate *h) return 1; } #define hstate_index_to_shift(index) 0 +#define hstate_index(h) 0 #endif #endif /* _LINUX_HUGETLB_H */ |