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| author | Bob Liu <lliubbo@gmail.com> | 2012-01-12 17:18:48 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-12 20:13:07 -0800 |
| commit | 9fb4b7cc0724f178d4b24a2a566ea1e7cb120b82 (patch) | |
| tree | 0f2db9102d46f5e5c8492864fb1bd21f2e7cd768 /include | |
| parent | 40f23a21a8501c1b2c65c50c19b516488ac31313 (diff) | |
| download | linux-9fb4b7cc0724f178d4b24a2a566ea1e7cb120b82.tar.gz linux-9fb4b7cc0724f178d4b24a2a566ea1e7cb120b82.tar.bz2 linux-9fb4b7cc0724f178d4b24a2a566ea1e7cb120b82.zip | |
page_cgroup: add helper function to get swap_cgroup
There are multiple places which need to get the swap_cgroup address, so
add a helper function:
static struct swap_cgroup *swap_cgroup_getsc(swp_entry_t ent,
struct swap_cgroup_ctrl **ctrl);
to simplify the code.
Signed-off-by: Bob Liu <lliubbo@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Johannes Weiner <jweiner@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/page_cgroup.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/page_cgroup.h b/include/linux/page_cgroup.h index aaa60da8783c..1153095ee457 100644 --- a/include/linux/page_cgroup.h +++ b/include/linux/page_cgroup.h @@ -149,7 +149,7 @@ static inline void __init page_cgroup_init_flatmem(void) extern unsigned short swap_cgroup_cmpxchg(swp_entry_t ent, unsigned short old, unsigned short new); extern unsigned short swap_cgroup_record(swp_entry_t ent, unsigned short id); -extern unsigned short lookup_swap_cgroup(swp_entry_t ent); +extern unsigned short lookup_swap_cgroup_id(swp_entry_t ent); extern int swap_cgroup_swapon(int type, unsigned long max_pages); extern void swap_cgroup_swapoff(int type); #else @@ -161,7 +161,7 @@ unsigned short swap_cgroup_record(swp_entry_t ent, unsigned short id) } static inline -unsigned short lookup_swap_cgroup(swp_entry_t ent) +unsigned short lookup_swap_cgroup_id(swp_entry_t ent) { return 0; } |