[PATCH v4 0/7] net: skb: isolate skb data area allocations into a separate bucket

[Kees Cook <kees@kernel.org>]

Hi!

I wanted to get this rolling again, and got the buckets able to handle
memcg (GFP_KERNEL_ACCOUNT) with isolation (since it's common due to
AF_UNIX), and GFP_DMA with fall back (since it's rare). It gave me an
excuse to build out bucket kunit tests too, and that (and LLM review)
found a couple other issues that needed fixing too.

The bulk of this is mm/slab, but the final patch is netdev, but Jakub
had acked it before. I've dropped that Ack since time has passed, but
I'm hoping it will get a re-Ack and this whole series can go via slab.

Thanks!

-Kees

v4:
 - fix a bunch of little things wrong with kmem_buckets
 - provide cache-type fallback when using buckets
 - handle memcg when using buckets
v3: https://lore.kernel.org/all/20260702170728.168755-1-pfalcato@suse.de/

Kees Cook (6):
  mm/slab: Mark the kmem_buckets_create() context as a Context: section
  mm/slab: Give bucket caches the alignment of the caches they mirror
  mm/slab: Add kmem_buckets_destroy()
  mm/slab: Add tests for the existing kmem_buckets behaviour
  mm/slab: Provide kmalloc type fallback for bucket allocations
  mm/slab: Let a bucket set handle __GFP_ACCOUNT

Pedro Falcato (1):
  net: skb: isolate skb data area allocations into a separate bucket

 include/linux/slab.h   |  59 +++++++-
 mm/slab.h              |  44 +++++-
 lib/tests/slub_kunit.c | 316 +++++++++++++++++++++++++++++++++++++++++
 mm/slab_common.c       | 167 ++++++++++++++++++----
 net/core/skbuff.c      |  11 +-
 5 files changed, 566 insertions(+), 31 deletions(-)

-- 
2.34.1