On Sun, Dec 27, 2020 at 11:05 AM Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote: > > On Sun, Dec 27, 2020 at 10:39 AM Jussi Kivilinna <jussi.kivilinna@xxxxxx> wrote: > > > > 5.10.3 with patch compiles fine, but does not solve the issue. > > Duh. adding the read_iter only fixes kernel_read(). For splice, it also needs a > > .splice_read = generic_file_splice_read, > > in the file operations, something like this... Ok, I verified that patch with the test-case in the bugzilla, and it seems trivially fine. So it's committed as 14e3e989f6a5 ("proc mountinfo: make splice available again") now. Linus