Muchun Song 99144b9a46 mm: kfence: fix objcgs vector allocation ... [ Upstream commit 8f0b364973 ] If the kfence object is allocated to be used for objects vector, then this slot of the pool eventually being occupied permanently since the vector is never freed. The solutions could be (1) freeing vector when the kfence object is freed or (2) allocating all vectors statically. Since the memory consumption of object vectors is low, it is better to chose (2) to fix the issue and it is also can reduce overhead of vectors allocating in the future. Link: https://lkml.kernel.org/r/20220328132843.16624-1-songmuchun@bytedance.com Fixes: d3fb45f370 ("mm, kfence: insert KFENCE hooks for SLAB") Signed-off-by: Muchun Song <songmuchun@bytedance.com> Reviewed-by: Marco Elver <elver@google.com> Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Xiongchun Duan <duanxiongchun@bytedance.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-04-13 19:27:07 +02:00
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core.c	mm: kfence: fix objcgs vector allocation	2022-04-13 19:27:07 +02:00
kfence.h	mm: kfence: fix objcgs vector allocation	2022-04-13 19:27:07 +02:00
kfence_test.c	kfence: make test case compatible with run time set sample interval	2022-02-11 17:55:00 -08:00
Makefile	kfence: add test suite	2021-02-26 09:41:02 -08:00
report.c	Merge branch 'akpm' (patches from Andrew)	2021-09-08 12:55:35 -07:00