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([2620:10d:c090:500::4:e149]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-b62e121e0afsm1949188a12.25.2025.10.03.15.17.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 03 Oct 2025 15:17:14 -0700 (PDT) Message-ID: <8e1e6e4e3ae2eb9454a37613f30d883d3f4a7270.camel@gmail.com> Subject: Re: [RFC PATCH v1 09/10] bpf: dispatch to sleepable file dynptr From: Eduard Zingerman To: Mykyta Yatsenko , bpf@vger.kernel.org, ast@kernel.org, andrii@kernel.org, daniel@iogearbox.net, kafai@meta.com, kernel-team@meta.com, memxor@gmail.com Cc: Mykyta Yatsenko Date: Fri, 03 Oct 2025 15:17:13 -0700 In-Reply-To: <20251003160416.585080-10-mykyta.yatsenko5@gmail.com> References: <20251003160416.585080-1-mykyta.yatsenko5@gmail.com> <20251003160416.585080-10-mykyta.yatsenko5@gmail.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.56.2 (3.56.2-1.fc42) Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Fri, 2025-10-03 at 17:04 +0100, Mykyta Yatsenko wrote: [...] > /* bpf_type_flag contains a set of flags that are applicable to the valu= es of > diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h > index 4c497e839526..6078d5e9b535 100644 > --- a/include/linux/bpf_verifier.h > +++ b/include/linux/bpf_verifier.h > @@ -581,6 +581,8 @@ struct bpf_insn_aux_data { > u32 scc; > /* registers alive before this instruction. */ > u16 live_regs_before; > + /* kfunc is called in sleepable context */ > + bool kfunc_in_sleepable_ctx; This is a subprog level property, so I'd track it in bpf_subprog_info. Note that there is bpf_subprog_info->might_sleep flag already, but it is not exactly what you want. > }; > =20 > #define MAX_USED_MAPS 64 /* max number of maps accessed by one eBPF prog= ram */ [...]