kasan: integrate with init_on_alloc/free
Status from this message: [merged] kasan-mm-integrate-slab-init_on_free-with-hw_tags.patch removed from -mm tree
Get series with b4
b4 am [email protected]Versions newest first · linked by author and title
- v3 Latest5 patches 0 repliesApplied 5/5
- v25 patches 5 repliesSuperseded
- v15 patches 8 repliesSuperseded
Changes in v3 from the cover letter
- Move init variable check out of initialization loop in mte_set_mem_tag_range().
Patches in v3 All 5 applied
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/5 | arm64: kasan: allow to init memory when setting tagsarch/ arch/ mm/ | +32 | 0 replies | Applied |
| 2/5 | kasan: init memory in kasan_(un)poison for HW_TAGSlib/ mm/ mm/ +3 more | +36 | 0 replies | Applied |
| 3/5 | kasan, mm: integrate page_alloc init with HW_TAGSinclude/ mm/ mm/ +1 more | +54 | 0 replies | Applied |
| 4/5 | kasan, mm: integrate slab init_on_alloc with HW_TAGSinclude/ mm/ mm/ +2 more | +43 | 0 replies | Applied |
| 5/5 | kasan, mm: integrate slab init_on_free with HW_TAGSinclude/ mm/ mm/ +1 more | +48 | 0 replies | Applied |
Reviews trailers per patch
All 5 patches have a Reviewed-by or Acked-by.
| Patch | Marco Elver |
|---|---|
| 1/5 | A-b |
| 2/5 | R-b |
| 3/5 | R-b |
| 4/5 | R-b |
| 5/5 | R-b |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [PATCH v3 0/5] kasan: integrate with init_on_alloc/free
This patch series integrates HW_TAGS KASAN with init_on_alloc/free by initializing memory via the same arm64 instruction that sets memory tags.
This is expected to improve HW_TAGS KASAN performance when init_on_alloc/free is enabled. The exact perfomance numbers are unknown as MTE-enabled hardware doesn't exist yet.
Changes v2->v3:
- Move init variable check out of initialization loop in mte_set_mem_tag_range().
Changes v1->v2:
- Add and use kasan_has_integrated_init() helper.
- Update comments to not explicitly mention relation between HW_TAGS KASAN and memory init.
- Fix non initting memory with kasan=off by checking kasan_enabled() instead of IS_ENABLED(CONFIG_KASAN_HW_TAGS).
Andrey Konovalov (5):
arm64: kasan: allow to init memory when setting tags
kasan: init memory in kasan_(un)poison for HW_TAGS kasan, mm: integrate page_alloc init with HW_TAGS kasan, mm: integrate slab init_on_alloc with HW_TAGS kasan, mm: integrate slab init_on_free with HW_TAGS
arch/arm64/include/asm/memory.h | 4 +- arch/arm64/include/asm/mte-kasan.h | 39 +++++++++++------ include/linux/kasan.h | 48 +++++++++++++------- lib/test_kasan.c | 4 +- mm/kasan/common.c | 45 +++++++++---------- mm/kasan/generic.c | 12 ++--- mm/kasan/kasan.h | 19 ++++---- mm/kasan/shadow.c | 10 ++--- mm/kasan/sw_tags.c | 2 +- mm/mempool.c | 4 +- mm/page_alloc.c | 37 +++++++++++----- mm/slab.c | 43 ++++++++++-------- mm/slab.h | 17 ++++++-- mm/slub.c | 70 +++++++++++++++--------------- 14 files changed, 207 insertions(+), 147 deletions(-)
Signature · 1 line
2.30.1.766.gb4fecdf3b7-goog