On Thu, Feb 29, 2024 at 11:15:35AM +0100, Christian Brauner wrote: > On Wed, Feb 28, 2024 at 04:01:17PM +0100, Miklos Szeredi wrote: > > On Wed, 28 Feb 2024 at 15:32, Jens Axboe <axboe@xxxxxxxxx> wrote: > > > > > > On 2/28/24 4:28 AM, Amir Goldstein wrote: > > > > > > Are fixed files visible to lsof? > > > > > > lsof won't show them, but you can read the fdinfo of the io_uring fd to > > > see them. Would probably be possible to make lsof find and show them > > > too, but haven't looked into that. > > I actually wrote about this before when I suggested IORING_OP_FIXED_FD_INSTALL: > https://patchwork.kernel.org/project/io-uring/patch/df0e24ff-f3a0-4818-8282-2a4e03b7b5a6@xxxxxxxxx/#25629935 I think that it shouldn't be a problem as long as userspace has some way of figuring this out. So extending lsof might just be enough for this.
