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Sun, 25 Jan 2026 08:41:32 -0800 (PST) From: Xie Yuanbin To: linux@armlinux.org.uk, johannes@sipsolutions.net, masahiroy@kernel.org, jgross@suse.com, nsc@kernel.org, kees@kernel.org, tglx@kernel.org, mingo@kernel.org, frederic@kernel.org, paulmck@kernel.org, peterz@infradead.org, mathieu.desnoyers@efficios.com, luto@kernel.org, edumazet@google.com Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Xie Yuanbin Subject: [PATCH 5/9] ARM: entry: fix missing statistics of rseq exit Date: Mon, 26 Jan 2026 00:40:12 +0800 Message-ID: <20260125164016.331257-6-qq570070308@gmail.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260125164016.331257-1-qq570070308@gmail.com> References: <20260125164016.331257-1-qq570070308@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" rseq_syscall_exit_to_user_mode() or rseq_irqentry_exit_to_user_mode() is missing on arm when returning to user mode, this leads to missing statistics of rseq exit. Add rseq_irqentry_exit_to_user_mode() to arm_exit_to_user_mode_no_work_pending(). Fixes: 5412910487d0 ("rseq: Expose lightweight statistics in debugfs") Signed-off-by: Xie Yuanbin --- arch/arm/kernel/entry.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/kernel/entry.c b/arch/arm/kernel/entry.c index d32f7be9a107..60e5c250da88 100644 --- a/arch/arm/kernel/entry.c +++ b/arch/arm/kernel/entry.c @@ -1,5 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only #include +#include #include #include =20 @@ -13,6 +14,7 @@ asmlinkage __section(".entry.text") void arm_exit_to_user_mode_no_work_pending(void) { + rseq_irqentry_exit_to_user_mode(); exit_to_user_mode(); #ifdef CONFIG_KSTACK_ERASE stackleak_erase_on_task_stack(); --=20 2.51.0