Hi, On 2021-01-23 15:50:55 -0800, Andres Freund wrote: > It's also not clear to me that right now you'd necessarily get correct > results if multiple IORING_OP_GETDENTS64 for the same fd get processed > in different workers. Looking at iterate_dir(), it looks to me that the > locking around the file position would end up being insufficient on > filesystems that implement iterate_shared? > [...] > As there's only a shared lock, seems like both would end up with the > same ctx->pos and end up updating f_pos to the same offset (assuming the > same count). > > Am I missing something? A minimal and brute force approach to this would be to use io_op_def.hash_reg_file, but brrr, that doesn't seem like a great way forward. Greetings, Andres Freund
