On Sat, Nov 16, 2024 at 1:21 AM Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> wrote: > > On 2024-11-15 23:29:31 [+0100], Thomas Gleixner wrote: > > IIRC, BPF has it's own allocator which can be used everywhere. > > Thomas Weißschuh made something. It appears to work. Need to take a > closer look. Any more details? bpf_mem_alloc is a stop gap. As Vlastimil Babka suggested long ago: https://lwn.net/Articles/974138/ "...next on the target list is the special allocator used by the BPF subsystem. This allocator is intended to succeed in any calling context, including in non-maskable interrupts (NMIs). BPF maintainer Alexei Starovoitov is evidently in favor of this removal if SLUB is able to handle the same use cases..." Here is the first step: https://lore.kernel.org/bpf/20241116014854.55141-1-alexei.starovoitov@xxxxxxxxx/
