hi....
I found a way to switch the io-scheduler, by calling the function elv_iosched_store(..).
!!! great, it worked for me !!!
please correct me if im wrong...
Thanks
Ashok
>On 5/24/07, Thomas De Schampheleire <patrickdepinguin@xxxxxxxxx> wrote:
>> But it is possible to write to that file from a module, isn't it?
>Yes, but why do what to do something from kernel which can be already
>done from userspace?
>thanks
>>
>> Thomas
>>
>> 2007/5/24, Erik Mouw <mouw@xxxxxxxxxxxx>:
> > > -----BEGIN PGP SIGNED MESSAGE-----
> > > Hash: SHA1
> > >
> > > On Thu, May 24, 2007 at 03:09:15PM +0530, ashok.shanmugam@xxxxxxxxx wrote:
> > > > Can we switch the IO-scheduler on the fly, from a kernel module.
> > >
> > > Yes, but probably not from a kernel module (it's a policy decision, so
> > > it should be handled in userland anyway). From userland:
> > >
> > > $ cat /sys/block/hda/queue/scheduler
> > > noop anticipatory deadline [cfq]
> > > $ echo noop > /sys/block/hda/queue/scheduler
> > >
> > >
> > > Erik
> > >
> > > - --
> > > They're all fools. Don't worry. Darwin may be slow, but he'll
> > > eventually get them. -- Matthew Lammers in alt.sysadmin.recovery
> > > -----BEGIN PGP SIGNATURE-----
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> > >
> > > iD8DBQFGVY2E/PlVHJtIto0RAm2kAJ9wWDfZGbcs/RKDqVQLARzF1oUDmwCfdl4G
> > > vSSS0psY7az6ZU2b1H9OaVM=
> > > =Wnre
> > > -----END PGP SIGNATURE-----
> > >
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