[PATCH V3 0/2] SLUB bulk API interactions with kmem cgroup

[Jesper Dangaard Brouer <brouer@redhat.com>]

Added correct support for kmem cgroup interaction with SLUB bulk API.

I've compiled kernel with CONFIG_MEMCG_KMEM=y, and have tested the
kernel with the setup provide by Vladimir Davydov.  And with my
network stack use-case patchset applied, to actually activate the API.

Patch01: I've verified the loop in slab_post_alloc_hook() gets removed
 by the compiler (when no debug options defined). This was actually
 tricky due to kernel gcc compile options, and I wrote a small program
 to figure this out [1].

Patch02: The "try_crash" mode of the test module slab_bulk_test03 [2]
 have been modified as after this change we no longer handle error
 cases like passing of NULL pointers in the array to free, when
 CONFIG_MEMCG_KMEM is enabled.

[1] https://github.com/netoptimizer/network-testing/blob/master/src/compiler_test01.c
[2] https://github.com/netoptimizer/prototype-kernel/blob/master/kernel/mm/slab_bulk_test03.c

---

Jesper Dangaard Brouer (2):
      slub: fix kmem cgroup bug in kmem_cache_alloc_bulk
      slub: add missing kmem cgroup support to kmem_cache_free_bulk


 mm/slub.c |   41 +++++++++++++++++++++++++++--------------
 1 file changed, 27 insertions(+), 14 deletions(-)

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