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Fri, 28 Feb 2025 13:21:21 -0800 (PST) Message-ID: <21a2581566485760d26b7cdea65f03778b254cb8.camel@gmail.com> Subject: Re: [PATCH bpf-next v1 2/2] selftests/bpf: Test sleepable global subprogs in atomic contexts From: Eduard Zingerman To: Kumar Kartikeya Dwivedi , bpf@vger.kernel.org Cc: Alexei Starovoitov , Andrii Nakryiko , Daniel Borkmann , Martin KaFai Lau , kkd@meta.com, kernel-team@meta.com Date: Fri, 28 Feb 2025 13:21:16 -0800 In-Reply-To: <20250228162858.1073529-3-memxor@gmail.com> References: <20250228162858.1073529-1-memxor@gmail.com> <20250228162858.1073529-3-memxor@gmail.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.54.3 (3.54.3-1.fc41) Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Fri, 2025-02-28 at 08:28 -0800, Kumar Kartikeya Dwivedi wrote: > Add tests for rejecting sleepable and accepting non-sleepable global > function calls in atomic contexts. For spin locks, we still reject > all global function calls. Once resilient spin locks land, we will > carefully lift in cases where we deem it safe. >=20 > Signed-off-by: Kumar Kartikeya Dwivedi > --- Maybe add one more layer in some of the tests? E.g. call non-sleepable global from sleepable global and vice-versa? [...]