Re: [PATCH] MIPS: N64: Define getdents64

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On Tue, May 21, 2013 at 11:55:42AM -0700, David Daney wrote:

> On 05/21/2013 07:37 AM, Aron Xu wrote:
> >As a relatively new ABI, N64 only had getdents syscall while other modern
> >architectures have getdents64.
> >
> >This was noticed when Python 3.3 shifted to the latter one for aarch64.
> >
> >Signed-off-by: Aron Xu <aron@xxxxxxxxxx>
> 
> This looks correct to me.  The getdents64 call returns more
> information than getdents (it adds a field for the file type).  So,
> although in n64 the widths of the d_ino and d_off fields are the
> same for getdents64 and getdents, we still need to add this syscall.
> 
> Acked-by: David Daney <david.daney@xxxxxxxxxx>

Yes, the patch is looking good but I was really wondering why the other
ABIs had getdents64 wired up but not the native N64, so I started
digging.

Commit 1a1d77dd589de5a567fa95e36aa6999c704ceca4 [Merge with 2.4.0-test7.]
added N64 getdents(2) to arch/mips64/kernel/scall_64.S as syscall 5213,
then dropped again in 578720675c44e54e8aa7c68f6dce59ed37ce3d3b [Overhaul
of the 64-bit syscall interface.  Now heritage free.] for 2.5.18 in 2002.

It took a while to be noticed ;)

Thanks a lot!

  Ralf


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