The patch titled
memcg: avoid unnecessary initialization
has been removed from the -mm tree. Its filename was
memcg-avoid-unnecessary-initialization.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: memcg: avoid unnecessary initialization
From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
* remove over-killing initialization (in fast path)
* makeing the condition for PAGE_CGROUP_FLAG_ACTIVE be more obvious.
Signed-off-by: KAMEAZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Reviewed-by: Li Zefan <lizf@xxxxxxxxxxxxxx>
Acked-by: Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx>
Acked-by: Pavel Emelyanov <xemul@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff -puN mm/memcontrol.c~memcg-avoid-unnecessary-initialization mm/memcontrol.c
--- a/mm/memcontrol.c~memcg-avoid-unnecessary-initialization
+++ a/mm/memcontrol.c
@@ -296,7 +296,7 @@ static void __mem_cgroup_remove_list(str
MEM_CGROUP_ZSTAT(mz, MEM_CGROUP_ZSTAT_INACTIVE) -= 1;
mem_cgroup_charge_statistics(pc->mem_cgroup, pc->flags, false);
- list_del_init(&pc->lru);
+ list_del(&pc->lru);
}
static void __mem_cgroup_add_list(struct mem_cgroup_per_zone *mz,
@@ -559,7 +559,7 @@ retry:
}
unlock_page_cgroup(page);
- pc = kmem_cache_zalloc(page_cgroup_cache, gfp_mask);
+ pc = kmem_cache_alloc(page_cgroup_cache, gfp_mask);
if (pc == NULL)
goto err;
@@ -606,9 +606,14 @@ retry:
pc->ref_cnt = 1;
pc->mem_cgroup = mem;
pc->page = page;
- pc->flags = PAGE_CGROUP_FLAG_ACTIVE;
+ /*
+ * If a page is accounted as a page cache, insert to inactive list.
+ * If anon, insert to active list.
+ */
if (ctype == MEM_CGROUP_CHARGE_TYPE_CACHE)
pc->flags = PAGE_CGROUP_FLAG_CACHE;
+ else
+ pc->flags = PAGE_CGROUP_FLAG_ACTIVE;
lock_page_cgroup(page);
if (page_get_page_cgroup(page)) {
_
Patches currently in -mm which might be from kamezawa.hiroyu@xxxxxxxxxxxxxx are
origin.patch
memrlimit-add-memrlimit-controller-documentation.patch
memrlimit-setup-the-memrlimit-controller.patch
memrlimit-cgroup-mm-owner-callback-changes-to-add-task-info.patch
memrlimit-add-memrlimit-controller-accounting-and-control.patch
memrlimit-improve-error-handling.patch
memrlimit-improve-error-handling-update.patch
memrlimit-handle-attach_task-failure-add-can_attach-callback.patch
mm-speculative-page-references-fix-migration_entry_wait-for-speculative-page-cache.patch
define-page_file_cache-function-fix-splitlru-shmem_getpage-setpageswapbacked-sooner.patch
vmscan-split-lru-lists-into-anon-file-sets-splitlru-memcg-swapbacked-pages-active.patch
vmscan-second-chance-replacement-for-anonymous-pages-fix.patch
vmscan-second-chance-replacement-for-anonymous-pages-memcg-lru-scan-fix.patch
unevictable-lru-infrastructure-putback_lru_page-unevictable-page-handling-rework.patch
mlock-mlocked-pages-are-unevictable-fix-truncate-race-and-sevaral-comments.patch
fix-double-unlock_page-in-2626-rc5-mm3-kernel-bug-at-mm-filemapc-575.patch
restore-patch-failure-of-vmstat-unevictable-and-mlocked-pages-vm-eventspatch.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
