Re: [RFC] fs: move super_block and inode definitions to central fs.h header

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On Mon, Jan 25, 2016 at 9:47 AM, Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> wrote:
> On Mon, Jan 25, 2016 at 09:40:26AM +0100, Yegor Yefremov wrote:
>> On Mon, Jan 25, 2016 at 9:20 AM, Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> wrote:
>> > On Sun, Jan 24, 2016 at 08:55:22PM +0100, Yegor Yefremov wrote:
>> >> On Sun, Jan 24, 2016 at 8:24 PM, Yegor Yefremov
>> >> <yegorslists@xxxxxxxxxxxxxx> wrote:
>> >> > Both super_block and inode are common to various file systems, so
>> >> > move them to the central place.
>> >> >
>> >> > Signed-off-by: Yegor Yefremov <yegorslists@xxxxxxxxxxxxxx>
>> >> > ---
>> >> >  fs/ubifs/ubifs.h | 134 +------------------------------------------------------
>> >> >  include/fs.h     | 134 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
>> >> >  2 files changed, 135 insertions(+), 133 deletions(-)
>> >>
>> >> I'm trying to port SquashFS to Barebox. SquashFS uses at least both
>> >> super_block structure as also inode structure. Does it make sense to
>> >> introduce include/linux/fs.h?
>> >
>> > I think not. Using include/linux/ for header files is good for stuff
>> > directly taken from the kernel, but I think the fs related structures in
>> > barebox are quite different from the ones in the kernel.
>>
>> So you're OK about moving super_block and inode to inculde/fs?
>
> Sorry, I should have read the patch before replying to your followup.
> You were talking about the struct inode/superblock in ubifs which indeed
> are taken from the kernel and not actively used by barebox. These should
> indeed go to include/linux/.

OK

>>
>> >> What to do with struct timespec? It is defined in uapi part. Should it
>> >> go to include/linux/barebox-wrapper.h?
>> >
>> > barebox-wrapper.h contains no-op wrappers for stuff from the kernel that
>> > we want to keep around just to be able to compile kernel code with less
>> > modifications. struct timespec doesn't really fall into that category, I
>> > rather suggest its original place: include/linux/time.h
>>
>> OK. Then I'll move it there. Should I also add timeval and related
>> marcos as well?
>
> I would rather take the lazy approach and add them as needed.

OK

Yegor

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