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author | Roman Gushchin <guro@fb.com> | 2020-08-06 23:20:56 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-07 11:33:24 -0700 |
commit | 964d4bd370d559d9bd8e4abc139e85d2753956fb (patch) | |
tree | b7bf28d5cd4f81730d9fa53ec60e017feb3089aa /crypto | |
parent | 286e04b8ed7a04279ae277f0f024430246ea5eec (diff) | |
download | linux-964d4bd370d559d9bd8e4abc139e85d2753956fb.tar.bz2 |
mm: memcg/slab: save obj_cgroup for non-root slab objects
Store the obj_cgroup pointer in the corresponding place of
page->obj_cgroups for each allocated non-root slab object. Make sure that
each allocated object holds a reference to obj_cgroup.
Objcg pointer is obtained from the memcg->objcg dereferencing in
memcg_kmem_get_cache() and passed from pre_alloc_hook to post_alloc_hook.
Then in case of successful allocation(s) it's getting stored in the
page->obj_cgroups vector.
The objcg obtaining part look a bit bulky now, but it will be simplified
by next commits in the series.
Signed-off-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Link: http://lkml.kernel.org/r/20200623174037.3951353-9-guro@fb.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'crypto')
0 files changed, 0 insertions, 0 deletions