Re: misuse of fget_raw() in perf_event_get()

From: Alexei Starovoitov
Date: Mon Apr 15 2019 - 00:42:09 EST


On Sat, Apr 13, 2019 at 10:02:42PM +0100, Al Viro wrote:
> What's the point of using fget_raw(), if you do
> _not_ accept O_PATH descriptors? That should be fget()...

I think you're talking about commit e03e7ee34fdd ("perf/bpf: Convert perf_event_array to use struct file")
I don't really remember why we went with this instead of fget().
There was a bunch of back and forth back then with Peter.
Now it looks like that it can be fget just fine.
I think cgroup_get_from_fd() should do the same too?