[PATCH v2 0/2] cfi: free old cfi shadow asynchronously

From: Haibo Li
Date: Sun Jul 03 2022 - 21:41:09 EST


This patchset changes synchronize_rcu to call_rcu in update_shadow.

Patch 1 enables the CFI sanitization for cfi.c and
bypass __cfi_slowpath_diag.
It is the prerequisite for using call_rcu in cfi.c.

Patch 2 changes synchronize_rcu to call_rcu and
free old cfi shadow in rcu cb

Changes in v2:
- Remove _run_cfi_check,add __nocfi to __cfi_slowpath_diag directly
- Rename _cfi_shadow_free_rcu to free_shadow

Haibo Li (2):
cfi: enable sanitize for cfi.c
cfi: free old cfi shadow asynchronously

kernel/Makefile | 3 ---
kernel/cfi.c | 14 +++++++++++---
2 files changed, 11 insertions(+), 6 deletions(-)

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2.25.1