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f211c81ddc
The existing kernel-side export of bpf_arena_alloc_pages is _non_sleepable only - it's used by the verifier to inline the kfunc when the call site is non-sleepable. There is no sleepable equivalent for kernel callers. The kfunc bpf_arena_alloc_pages itself is BPF-only. sched_ext needs sleepable kernel-side allocs for its arena pool init/grow paths. Add bpf_arena_alloc_pages_sleepable() mirroring the _non_sleepable wrapper but passing sleepable=true to arena_alloc_pages(). Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Emil Tsalapatis <emil@etsalapatis.com> Link: https://lore.kernel.org/r/20260522172219.1423324-4-tj@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>