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[5.90.15.200]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-48c71d3d3eesm11480317f8f.53.2026.10.08.02.00.55 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 08 Oct 2026 02:00:55 -0700 (PDT) Date: Thu, 08 Oct 2026 09:00:54 +0000 From: Gabriele Monaco To: Nam Cao , linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, bpf@vger.kernel.org, Steven Rostedt CC: Alexei Starovoitov , Wen Yang , Tobias Schaffner , Viktor Malik Subject: =?US-ASCII?Q?Re=3A_=5BPATCH_v2_09/15=5D_tools/rv=3A_Copy?= =?US-ASCII?Q?_stripped_bpf=5Fatomic=2Eh_from_libarena?= In-Reply-To: <87ld89wtrx.fsf@yellow.woof> References: <20261001152042.124445-1-gmonaco@redhat.com> <20261001152042.124445-10-gmonaco@redhat.com> <87ld89wtrx.fsf@yellow.woof> Message-ID: <4F009BB7-58C2-4AB1-8FEF-61FA4B5281A2@redhat.com> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: BRsGVFNt2tKghNTDSMs_tpYffCw5z_3TmQY_9f1tNGQ_1791450058 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Il 7 ottobre 2026 12:59:46 UTC, Nam Cao ha scritto: >Gabriele Monaco writes: >> Add bpf_atomic.h including atomic read/write macros like READ_ONCE() and >> try_cmpxchg(). This version is a stripped down copy of the one currently >> present in selftests/bpf/libarena. > >Instead of this, what do you think about using C11's atomic stuffs? I >prefer standardized stuff when it is an option. Mmh, I'm not too familiar with them, but they wouldn't be drop-in replaceme= nts as far as I understand. I'd need to use C11 atomic types and that would= diverge further from the kernel implementation. Ideally I wouldn't like to copy libarena's implementation but I couldn't fi= nd a cleaner way to include it. I'm going to look into that more carefully though. Thanks, Gabriele