From: Haibo Li <haibo.li@mediatek.com>
To: Sami Tolvanen <samitolvanen@google.com>
Cc: xiaoming.yu@mediatek.com, "Kees Cook" <keescook@chromium.org>,
"Nathan Chancellor" <nathan@kernel.org>,
"Nick Desaulniers" <ndesaulniers@google.com>,
"Matthias Brugger" <matthias.bgg@gmail.com>,
"Peter Zijlstra" <peterz@infradead.org>,
"Masami Hiramatsu" <mhiramat@kernel.org>,
"Christophe Leroy" <christophe.leroy@csgroup.eu>,
"André Almeida" <andrealmeid@igalia.com>,
"Luis Chamberlain" <mcgrof@kernel.org>,
"Juergen Gross" <jgross@suse.com>,
"Haibo Li" <haibo.li@mediatek.com>,
"Tiezhu Yang" <yangtiezhu@loongson.cn>,
"Aaron Tomlin" <atomlin@redhat.com>,
"Dmitry Torokhov" <dmitry.torokhov@gmail.com>,
linux-kernel@vger.kernel.org, llvm@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org
Subject: [PATCH 0/2] ANDROID: cfi:free old cfi shadow asynchronously
Date: Thu, 30 Jun 2022 17:46:44 +0800 [thread overview]
Message-ID: <20220630094646.91837-1-haibo.li@mediatek.com> (raw)
Currenly, it uses synchronize_rcu() to wait old rcu reader to go away
in update_shadow.In embedded platform like ARM CA7X,
load_module blocks 40~50ms in update_shadow.
When there are more than one hundred kernel modules,
it blocks several seconds.
To accelerate load_module,change synchronize_rcu to call_rcu.
*** BLURB HERE ***
Haibo Li (2):
ANDROID: cfi: enable sanitize for cfi.c
ANDROID: cfi: free old cfi shadow asynchronously
kernel/Makefile | 3 ---
kernel/cfi.c | 20 +++++++++++++++++---
2 files changed, 17 insertions(+), 6 deletions(-)
--
2.25.1
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next reply other threads:[~2022-06-30 10:52 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-30 9:46 Haibo Li [this message]
2022-06-30 9:46 ` [PATCH 1/2] ANDROID: cfi: enable sanitize for cfi.c Haibo Li
2022-06-30 16:19 ` Sami Tolvanen
2022-07-01 2:10 ` Haibo Li
2022-06-30 9:46 ` [PATCH 2/2] ANDROID: cfi: free old cfi shadow asynchronously Haibo Li
2022-06-30 16:16 ` Sami Tolvanen
2022-07-01 2:27 ` Haibo Li
2022-07-01 2:42 ` Haibo Li
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