The patch titled
Subject: mm-assign-id-to-every-memcg-aware-shrinker-v9
has been added to the -mm tree. Its filename is
mm-assign-id-to-every-memcg-aware-shrinker-v9.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-assign-id-to-every-memcg-aware-shrinker-v9.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-assign-id-to-every-memcg-aware-shrinker-v9.patch
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx>
Subject: mm-assign-id-to-every-memcg-aware-shrinker-v9
Link: http://lkml.kernel.org/r/153112546435.4097.10607140323811756557.stgit@localhost.localdomain
Signed-off-by: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx>
Acked-by: Vladimir Davydov <vdavydov.dev@xxxxxxxxx>
Tested-by: Shakeel Butt <shakeelb@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmscan.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff -puN mm/vmscan.c~mm-assign-id-to-every-memcg-aware-shrinker-v9 mm/vmscan.c
--- a/mm/vmscan.c~mm-assign-id-to-every-memcg-aware-shrinker-v9
+++ a/mm/vmscan.c
@@ -178,6 +178,7 @@ static int prealloc_memcg_shrinker(struc
int id, ret = -ENOMEM;
down_write(&shrinker_rwsem);
+ /* This may call shrinker, so it must use down_read_trylock() */
id = idr_alloc(&shrinker_idr, shrinker, 0, 0, GFP_KERNEL);
if (id < 0)
goto unlock;
@@ -375,11 +376,11 @@ void free_prealloced_shrinker(struct shr
if (!shrinker->nr_deferred)
return;
- kfree(shrinker->nr_deferred);
- shrinker->nr_deferred = NULL;
-
if (shrinker->flags & SHRINKER_MEMCG_AWARE)
unregister_memcg_shrinker(shrinker);
+
+ kfree(shrinker->nr_deferred);
+ shrinker->nr_deferred = NULL;
}
void register_shrinker_prepared(struct shrinker *shrinker)
_
Patches currently in -mm which might be from ktkhai@xxxxxxxxxxxxx are
memcg-remove-memcg_cgroup-id-from-idr-on-mem_cgroup_css_alloc-failure.patch
list_lru-combine-code-under-the-same-define.patch
mm-introduce-config_memcg_kmem-as-combination-of-config_memcg-config_slob.patch
mm-assign-id-to-every-memcg-aware-shrinker.patch
mm-assign-id-to-every-memcg-aware-shrinker-v9.patch
memcg-move-up-for_each_mem_cgroup-_tree-defines.patch
mm-assign-memcg-aware-shrinkers-bitmap-to-memcg.patch
mm-assign-memcg-aware-shrinkers-bitmap-to-memcg-v9.patch
mm-refactoring-in-workingset_init.patch
mm-refactoring-in-workingset_init-v9.patch
fs-refactoring-in-alloc_super.patch
fs-propagate-shrinker-id-to-list_lru.patch
list_lru-add-memcg-argument-to-list_lru_from_kmem.patch
list_lru-pass-dst_memcg-argument-to-memcg_drain_list_lru_node.patch
list_lru-pass-lru-argument-to-memcg_drain_list_lru_node.patch
mm-export-mem_cgroup_is_root.patch
mm-set-bit-in-memcg-shrinker-bitmap-on-first-list_lru-item-apearance.patch
mm-set-bit-in-memcg-shrinker-bitmap-on-first-list_lru-item-apearance-v9.patch
mm-iterate-only-over-charged-shrinkers-during-memcg-shrink_slab.patch
mm-iterate-only-over-charged-shrinkers-during-memcg-shrink_slab-v9.patch
mm-add-shrink_empty-shrinker-methods-return-value.patch
mm-clear-shrinker-bit-if-there-are-no-objects-related-to-memcg.patch
mm-clear-shrinker-bit-if-there-are-no-objects-related-to-memcg-v9.patch
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