[7.1.y 0/3] mm/slab: fix unbounded recursion in free path with memalloc profiling

[Harry Yoo]

From: "Harry Yoo" <harry@xxxxxxxxxx>

This is backport of "mm/slab: fix unbounded recursion in free path with
memalloc profiling" series [1] for 7.1.

The last patch has a slight functional difference compared to mainline
due to lack of SLAB_ALLOC_* flags. I described those subtlties in the
backporting notes in detail.

[1] https://lore.kernel.org/all/20260713-kmalloc-no-objext-v3-0-47c7bd138de7@xxxxxxxxxx

Harry Yoo (Oracle) (3):
  mm/slab: decouple SLAB_NO_SHEAVES from SLAB_NO_OBJ_EXT
  lib/alloc_tag: introduce mem_alloc_profiling_permanently_disabled()
  mm/slab: prevent unbounded recursion in free path with new kmalloc
    type

 include/linux/alloc_tag.h |  3 ++
 include/linux/slab.h      | 19 +++++++-
 lib/alloc_tag.c           |  9 ++++
 mm/slab.h                 | 28 ++++++++++-
 mm/slab_common.c          | 13 ++++++
 mm/slub.c                 | 97 +++++++++++++++------------------------
 6 files changed, 104 insertions(+), 65 deletions(-)

-- 
2.53.0