From: Song Liu <song@kernel.org>
To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
live-patching@vger.kernel.org
Cc: rostedt@goodmis.org, mhiramat@kernel.org, mark.rutland@arm.com,
kernel-team@meta.com, Song Liu <song@kernel.org>
Subject: [PATCH v2 15/16] uaccess: Mark pagefault_disable() and pagefault_enable() notrace
Date: Thu, 22 Oct 2026 18:10:48 -0700 [thread overview]
Message-ID: <20261023011049.1164625-16-song@kernel.org> (raw)
In-Reply-To: <20261023011049.1164625-1-song@kernel.org>
copy_to_kernel_nofault() and copy_to_user_nofault() are declared
notrace in <linux/uaccess.h>. They call pagefault_disable() and
pagefault_enable(), which are plain inline functions, so an out-of-line
copy is untraced only because inline implies notrace.
Mark them notrace explicitly. No functional change.
Assisted-by: Claude:claude-opus-5
Signed-off-by: Song Liu <song@kernel.org>
---
include/linux/uaccess.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
index eddbbb65ccc4..ee4966ba9c1e 100644
--- a/include/linux/uaccess.h
+++ b/include/linux/uaccess.h
@@ -260,7 +260,7 @@ static __always_inline void pagefault_disabled_dec(void)
* User access methods will not sleep when called from a pagefault_disabled()
* environment.
*/
-static inline void pagefault_disable(void)
+static inline void notrace pagefault_disable(void)
{
pagefault_disabled_inc();
/*
@@ -270,7 +270,7 @@ static inline void pagefault_disable(void)
barrier();
}
-static inline void pagefault_enable(void)
+static inline void notrace pagefault_enable(void)
{
/*
* make sure to issue those last loads/stores before enabling
--
2.53.0-Meta
next prev parent reply other threads:[~2026-10-23 1:12 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-23 1:10 [PATCH v2 00/16] Move notrace from inline to __always_inline Song Liu
2026-10-23 1:10 ` [PATCH v2 01/16] x86/paravirt: Mark native pv_ops helpers notrace Song Liu
2026-10-23 1:10 ` [PATCH v2 02/16] x86: Mark CPU state helpers used by resume and kexec notrace Song Liu
2026-10-23 1:10 ` [PATCH v2 03/16] bpf: Mark bpf_spin_lock helpers notrace Song Liu
2026-10-23 1:10 ` [PATCH v2 04/16] bpf: Mark the BPF trampoline " Song Liu
2026-10-23 1:10 ` [PATCH v2 05/16] bpf: Mark the bpf_mem_alloc fast path " Song Liu
2026-10-23 1:10 ` [PATCH v2 06/16] u64_stats: Mark the update helpers used by BPF notrace Song Liu
2026-10-23 1:10 ` [PATCH v2 07/16] tracepoint: Mark __do_trace_##name() notrace Song Liu
2026-10-23 1:10 ` [PATCH v2 08/16] srcu: Mark the fast notrace read-side helpers notrace Song Liu
2026-10-23 1:10 ` [PATCH v2 09/16] arm64: Mark the preempt count " Song Liu
2026-10-23 1:10 ` [PATCH v2 10/16] powerpc, csky, mips, sh: Mark the accessors behind current notrace Song Liu
2026-10-23 1:10 ` [PATCH v2 11/16] rcu: Mark the Tiny RCU rcu_is_watching() notrace Song Liu
2026-10-23 1:10 ` [PATCH v2 12/16] tracing: Mark the tracing_gen_ctx helpers notrace Song Liu
2026-10-23 1:10 ` [PATCH v2 13/16] ktime: Mark ktime_to_ns() notrace Song Liu
2026-10-23 1:10 ` [PATCH v2 14/16] kallsyms: Mark the kernel text address checks notrace Song Liu
2026-10-23 1:10 ` Song Liu [this message]
2026-10-23 1:10 ` [PATCH v2 16/16] compiler_types: Move notrace from inline to __always_inline Song Liu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20261023011049.1164625-16-song@kernel.org \
--to=song@kernel.org \
--cc=kernel-team@meta.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-trace-kernel@vger.kernel.org \
--cc=live-patching@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=mhiramat@kernel.org \
--cc=rostedt@goodmis.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®