[PATCH 0/3] kasan: hw_tags: some micro-optimizations

[Dev Jain]

Patch 1 uses GFP_SKIP_KASAN to skip unpoisoning of a slab page in the page
allocator, since slab allocator itself poisons the slab page immediately.

Patch 2 and 3 remove wasted work while poisoning the tail end of the
vmalloc/slab allocation.

---
Based on 7.1-rc2.

Dev Jain (3):
  mm/slub: hw_tags: skip page-allocator unpoisoning on slab allocation
  kasan: avoid re-poisoning tag-based kmalloc redzones
  vmalloc: hw_tags: optimize vmalloc redzoning

 include/linux/kasan.h | 17 +++++++++----
 mm/kasan/common.c     | 55 +++++++++++++++++++++++++++++++++----------
 mm/kasan/hw_tags.c    | 13 ++++++----
 mm/page_alloc.c       |  2 +-
 mm/slub.c             | 22 ++++++++++++-----
 5 files changed, 79 insertions(+), 30 deletions(-)

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2.43.0