2020년 11월 24일 (화) 오전 8:29, Eric Biggers <[email protected]>님이 작성:
>
> On Tue, Nov 24, 2020 at 08:02:21AM +0900, Daeho Jeong wrote:
> > Jaegeuk,
> >
> > My mistake~
> >
> > Eric,
> >
> > What I want is like do_page_cache_ra(), but I used
> > page_cache_ra_unbounded() directly, because we already checked that
> > read is within i_size.
> >
> > Or we could use do_page_cache_ra(), but it might do the same check in it 
> > again.
> > What do you think?
>
> page_cache_ra_unbounded() is basically a quirk for how fs-verity is 
> implemented
> in ext4 and f2fs.  I don't think people would be happy if it's used in other
> cases, where it's not needed.  Checking against i_size multiple times is fine.
>

Got your point. Thanks.

> >
> > I could add some description about these in
> > Documentation/filesystems/f2fs.rst and I implemented tests internally.
>
> Documentation in f2fs.rst sounds good.  All the f2fs ioctls should be
> documented there.
>
> The tests should be runnable by any kernel developer; "internal" tests aren't
> very useful.  Could you add tests to xfstests?
>

Yes, I'll add all the internal test cases to xfstests soon~

> - Eric

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