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authorKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>2008-02-07 03:14:35 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-07 11:42:22 -0500
commitcc38108e1ba7f3b9e12b82d0236fa3730c2e0439 (patch)
tree6e51d191006b5db840c1eee659c372a2de7f85a8 /include
parent6c48a1d040a9a9eaa4acdd7d4cb3885e04bf8413 (diff)
per-zone and reclaim enhancements for memory controller: calculate the number of pages to be scanned per cgroup
Define function for calculating the number of scan target on each Zone/LRU. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Balbir Singh <balbir@linux.vnet.ibm.com> Cc: David Rientjes <rientjes@google.com> Cc: Herbert Poetzl <herbert@13thfloor.at> Cc: Kirill Korotaev <dev@sw.ru> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Paul Menage <menage@google.com> Cc: Pavel Emelianov <xemul@openvz.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> Cc: Rik van Riel <riel@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/memcontrol.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index f82158faa494..d87090eb14c0 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -76,6 +76,10 @@ extern void mem_cgroup_note_reclaim_priority(struct mem_cgroup *mem,
76extern void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem, 76extern void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem,
77 int priority); 77 int priority);
78 78
79extern long mem_cgroup_calc_reclaim_active(struct mem_cgroup *mem,
80 struct zone *zone, int priority);
81extern long mem_cgroup_calc_reclaim_inactive(struct mem_cgroup *mem,
82 struct zone *zone, int priority);
79 83
80#else /* CONFIG_CGROUP_MEM_CONT */ 84#else /* CONFIG_CGROUP_MEM_CONT */
81static inline void mm_init_cgroup(struct mm_struct *mm, 85static inline void mm_init_cgroup(struct mm_struct *mm,
@@ -173,6 +177,17 @@ static inline void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem,
173{ 177{
174} 178}
175 179
180static inline long mem_cgroup_calc_reclaim_active(struct mem_cgroup *mem,
181 struct zone *zone, int priority)
182{
183 return 0;
184}
185
186static inline long mem_cgroup_calc_reclaim_inactive(struct mem_cgroup *mem,
187 struct zone *zone, int priority)
188{
189 return 0;
190}
176#endif /* CONFIG_CGROUP_MEM_CONT */ 191#endif /* CONFIG_CGROUP_MEM_CONT */
177 192
178#endif /* _LINUX_MEMCONTROL_H */ 193#endif /* _LINUX_MEMCONTROL_H */