Re: LXC broken with 5.10-stable?, ok with 5.9-stable (Re: Linux 5.10.3)

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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



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