From: Mark Brown <broonie@kernel.org>
To: "Rick P. Edgecombe" <rick.p.edgecombe@intel.com>,
Deepak Gupta <debug@rivosinc.com>,
Szabolcs Nagy <Szabolcs.Nagy@arm.com>,
"H.J. Lu" <hjl.tools@gmail.com>,
Florian Weimer <fweimer@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Peter Zijlstra <peterz@infradead.org>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
Valentin Schneider <vschneid@redhat.com>,
Christian Brauner <brauner@kernel.org>,
Shuah Khan <shuah@kernel.org>
Cc: linux-kernel@vger.kernel.org,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
jannh@google.com, bsegall@google.com,
Andrew Morton <akpm@linux-foundation.org>,
Yury Khrustalev <yury.khrustalev@arm.com>,
Wilco Dijkstra <wilco.dijkstra@arm.com>,
linux-kselftest@vger.kernel.org, linux-api@vger.kernel.org,
Mark Brown <broonie@kernel.org>, Kees Cook <kees@kernel.org>,
Kees Cook <kees@kernel.org>,
Shuah Khan <skhan@linuxfoundation.org>
Subject: [PATCH v19 5/8] selftests/clone3: Remove redundant flushes of output streams
Date: Tue, 19 Aug 2025 17:21:51 +0100 [thread overview]
Message-ID: <20250819-clone3-shadow-stack-v19-5-bc957075479b@kernel.org> (raw)
In-Reply-To: <20250819-clone3-shadow-stack-v19-0-bc957075479b@kernel.org>
Since there were widespread issues with output not being flushed the
kselftest framework was modified to explicitly set the output streams
unbuffered in commit 58e2847ad2e6 ("selftests: line buffer test
program's stdout") so there is no need to explicitly flush in the clone3
tests.
Reviewed-by: Kees Cook <kees@kernel.org>
Tested-by: Kees Cook <kees@kernel.org>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
tools/testing/selftests/clone3/clone3_selftests.h | 2 --
1 file changed, 2 deletions(-)
diff --git a/tools/testing/selftests/clone3/clone3_selftests.h b/tools/testing/selftests/clone3/clone3_selftests.h
index eeca8005723f..939b26c86d42 100644
--- a/tools/testing/selftests/clone3/clone3_selftests.h
+++ b/tools/testing/selftests/clone3/clone3_selftests.h
@@ -35,8 +35,6 @@ struct __clone_args {
static pid_t sys_clone3(struct __clone_args *args, size_t size)
{
- fflush(stdout);
- fflush(stderr);
return syscall(__NR_clone3, args, size);
}
--
2.39.5
next prev parent reply other threads:[~2025-08-19 16:27 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-19 16:21 [PATCH v19 0/8] fork: Support shadow stacks in clone3() Mark Brown
2025-08-19 16:21 ` [PATCH v19 1/8] arm64/gcs: Return a success value from gcs_alloc_thread_stack() Mark Brown
2025-08-19 16:21 ` [PATCH v19 2/8] Documentation: userspace-api: Add shadow stack API documentation Mark Brown
2025-08-20 23:15 ` Randy Dunlap
2025-08-19 16:21 ` [PATCH v19 3/8] selftests: Provide helper header for shadow stack testing Mark Brown
2025-08-19 16:21 ` [PATCH v19 4/8] fork: Add shadow stack support to clone3() Mark Brown
2025-08-27 17:58 ` Edgecombe, Rick P
2025-08-19 16:21 ` Mark Brown [this message]
2025-08-19 16:21 ` [PATCH v19 6/8] selftests/clone3: Factor more of main loop into test_clone3() Mark Brown
2025-08-19 16:21 ` [PATCH v19 7/8] selftests/clone3: Allow tests to flag if -E2BIG is a valid error code Mark Brown
2025-08-19 16:21 ` [PATCH v19 8/8] selftests/clone3: Test shadow stack support Mark Brown
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