Re: fcntl64 in linux32 emul

[David Laight <david%l8s.co.uk@localhost>]

On Mon, Feb 04, 2008 at 09:13:33PM +0000, David Laight wrote:
> On Mon, Feb 04, 2008 at 07:02:53PM +0200, Arto Huusko wrote:
> > David Laight wrote:
> > >On Sat, Feb 02, 2008 at 11:54:13AM +0000, David Laight wrote:
> > >>I'll commit some changes that should be ok.
> > >
> > >Changes committed - hope they actually work :-)
> > 
> > No, they don't. With your changes ktrace still shows:
> > 
> >    746      1 skype    CALL  fcntl64(0x11,6,0xfddfe7e4)
> >    746      1 skype    RET   fcntl64 -1 errno -22 Invalid argument
> > 
> > I think your changes fixed only F_[GS]ETLK64 commands, but left
> > F_[GS]ETLK broken when called with fcntl64. You need to handle
> > F_[GS]ETLK in both linux32_sys_fcntl and linux32_sys_fcntl64.
> 
> Ah, ok, I really wasn't sure about the relation between the fcntl
> calls and the F_xxETLKnn commands.
> Something make me think that the 64bit (file offset) locking functions
> would be the only ones that came through fcntl64().

linux32_sys_fcntl() and linux32_sys_fcntl64() now call exactly the
same function.

The link seems to be a document related the the linux LFS (large file
support) changes...
ftp.cesnet.cz/MIRRORS/mea.tmt.tele.fi/linux/LFS/x_open.20Mar96.html

        David

-- 
David Laight: david%l8s.co.uk@localhost