On Thu, Jun 17, 2021 at 09:49:07PM -0500, Mike Christie wrote: > Again it's io_uring. Check out fs/io_uring.c:__io_account_mem(). For RLIMIT_MEMLOCK > it just does the check and increments the user's counter itself. It's simple like > option 2, and it handles the issue where the process doing the ioctl wasn't having > its RLIMIT_NPROC checked/updated. This can work too. It doesn't cover cases where code called indirectly acquires resources, but that's probably fine for the vhost worker thread case. Stefan
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