The patch titled
memcg: memcontrol uninlined and static
has been added to the -mm tree. Its filename is
memcg-memcontrol-uninlined-and-static.patch
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The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: memcg: memcontrol uninlined and static
From: Hugh Dickins <hugh@xxxxxxxxxxx>
More cleanup to memcontrol.c, this time changing some of the code generated.
Let the compiler decide what to inline (except for page_cgroup_locked which is
only used when CONFIG_DEBUG_VM): the __always_inline on lock_page_cgroup etc.
was quite a waste since bit_spin_lock etc. are inlines in a header file; made
mem_cgroup_force_empty and mem_cgroup_write_strategy static.
Signed-off-by: Hugh Dickins <hugh@xxxxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Hirokazu Takahashi <taka@xxxxxxxxxxxxx>
Cc: YAMAMOTO Takashi <yamamoto@xxxxxxxxxxxxx>
Cc: Paul Menage <menage@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 28 +++++++++++-----------------
1 file changed, 11 insertions(+), 17 deletions(-)
diff -puN mm/memcontrol.c~memcg-memcontrol-uninlined-and-static mm/memcontrol.c
--- a/mm/memcontrol.c~memcg-memcontrol-uninlined-and-static
+++ a/mm/memcontrol.c
@@ -168,12 +168,12 @@ struct page_cgroup {
#define PAGE_CGROUP_FLAG_CACHE (0x1) /* charged as cache */
#define PAGE_CGROUP_FLAG_ACTIVE (0x2) /* page is active in this cgroup */
-static inline int page_cgroup_nid(struct page_cgroup *pc)
+static int page_cgroup_nid(struct page_cgroup *pc)
{
return page_to_nid(pc->page);
}
-static inline enum zone_type page_cgroup_zid(struct page_cgroup *pc)
+static enum zone_type page_cgroup_zid(struct page_cgroup *pc)
{
return page_zonenum(pc->page);
}
@@ -199,14 +199,13 @@ static void mem_cgroup_charge_statistics
__mem_cgroup_stat_add_safe(stat, MEM_CGROUP_STAT_RSS, val);
}
-static inline struct mem_cgroup_per_zone *
+static struct mem_cgroup_per_zone *
mem_cgroup_zoneinfo(struct mem_cgroup *mem, int nid, int zid)
{
- BUG_ON(!mem->info.nodeinfo[nid]);
return &mem->info.nodeinfo[nid]->zoneinfo[zid];
}
-static inline struct mem_cgroup_per_zone *
+static struct mem_cgroup_per_zone *
page_cgroup_zoneinfo(struct page_cgroup *pc)
{
struct mem_cgroup *mem = pc->mem_cgroup;
@@ -231,16 +230,14 @@ static unsigned long mem_cgroup_get_all_
return total;
}
-static inline
-struct mem_cgroup *mem_cgroup_from_cont(struct cgroup *cont)
+static struct mem_cgroup *mem_cgroup_from_cont(struct cgroup *cont)
{
return container_of(cgroup_subsys_state(cont,
mem_cgroup_subsys_id), struct mem_cgroup,
css);
}
-static inline
-struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p)
+static struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p)
{
return container_of(task_subsys_state(p, mem_cgroup_subsys_id),
struct mem_cgroup, css);
@@ -276,13 +273,12 @@ struct page_cgroup *page_get_page_cgroup
return (struct page_cgroup *) (page->page_cgroup & ~PAGE_CGROUP_LOCK);
}
-static void __always_inline lock_page_cgroup(struct page *page)
+static void lock_page_cgroup(struct page *page)
{
bit_spin_lock(PAGE_CGROUP_LOCK_BIT, &page->page_cgroup);
- VM_BUG_ON(!page_cgroup_locked(page));
}
-static void __always_inline unlock_page_cgroup(struct page *page)
+static void unlock_page_cgroup(struct page *page)
{
bit_spin_unlock(PAGE_CGROUP_LOCK_BIT, &page->page_cgroup);
}
@@ -741,16 +737,14 @@ void mem_cgroup_end_migration(struct pag
void mem_cgroup_page_migration(struct page *page, struct page *newpage)
{
struct page_cgroup *pc;
- struct mem_cgroup *mem;
- unsigned long flags;
struct mem_cgroup_per_zone *mz;
+ unsigned long flags;
retry:
pc = page_get_page_cgroup(page);
if (!pc)
return;
- mem = pc->mem_cgroup;
mz = page_cgroup_zoneinfo(pc);
if (clear_page_cgroup(page, pc) != pc)
goto retry;
@@ -822,7 +816,7 @@ retry:
* make mem_cgroup's charge to be 0 if there is no task.
* This enables deleting this mem_cgroup.
*/
-int mem_cgroup_force_empty(struct mem_cgroup *mem)
+static int mem_cgroup_force_empty(struct mem_cgroup *mem)
{
int ret = -EBUSY;
int node, zid;
@@ -852,7 +846,7 @@ out:
return ret;
}
-int mem_cgroup_write_strategy(char *buf, unsigned long long *tmp)
+static int mem_cgroup_write_strategy(char *buf, unsigned long long *tmp)
{
*tmp = memparse(buf, &buf);
if (*buf != '\0')
_
Patches currently in -mm which might be from hugh@xxxxxxxxxxx are
git-unionfs.patch
memcg-mm_match_cgroup-not-vm_match_cgroup.patch
memcg-move_lists-on-page-not-page_cgroup.patch
memcg-page_cache_release-not-__free_page.patch
memcg-when-do_swaps-do_wp_page-fails.patch
memcg-fix-vm_bug_on-from-page-migration.patch
memcg-bad-page-if-page_cgroup-when-free.patch
memcg-mem_cgroup_charge-never-null.patch
memcg-remove-mem_cgroup_uncharge.patch
memcg-memcontrol-whitespace-cleanups.patch
memcg-memcontrol-uninlined-and-static.patch
memcg-remove-clear_page_cgroup-and-atomics.patch
memcg-css_put-after-remove_list.patch
memcg-fix-mem_cgroup_move_lists-locking.patch
memcg-simplify-force_empty-and-move_lists.patch
memcg-fix-oops-on-null-lru-list.patch
mmap_region-cleanup-the-final-vma_merge-related-code.patch
mm-try-both-endianess-when-checking-for-endianess.patch
procfs-task-exe-symlink.patch
procfs-task-exe-symlink-fix.patch
procfs-task-exe-symlink-fix-2.patch
prio_tree-debugging-patch.patch
-
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