/proc query

/proc query

[cranium2003]

hello,
Can a user program be able to overwrite /proc entry
with some changes to that /proc file frequently?
can same file be able to read by kernel in its actual
kernel execution?
regards,
cranium



		
__________________________________ 
Do you Yahoo!? 
Take Yahoo! Mail with you! Get it on your mobile phone. 
http://mobile.yahoo.com/maildemo 

Re: /proc query

[bert hubert]

On Fri, Dec 10, 2004 at 06:50:14PM -0800, cranium2003 wrote:
> Can a user program be able to overwrite /proc entry
> with some changes to that /proc file frequently?
> can same file be able to read by kernel in its actual
> kernel execution?

Userspace can only set settings in the kernel when the kernel allows this.
Procfs is not a storage filesystem, it stores settings and exposes
information.

The kernel does not 'read' files in /proc per se, it has direct access to
the relevant settings.

Procfs is like a window on the kernel, and in some cases you can hand the
kernel new settings.

-- 
http://www.PowerDNS.com      Open source, database driven DNS Software 
http://lartc.org           Linux Advanced Routing & Traffic Control HOWTO

/proc query

[linux lover]

hello,
        can it be possible to allow /proc new entry
file to update its value after few times. i
implemented a file /proc/text that updates text value
at each seconds not after 1 minutes. for that i am
using sleep. is it allow to use sleep in kernel source
modification.
regards,
linuxlover
 


	
		
__________________________________
Do you Yahoo!?
SBC Yahoo! - Internet access at a great low price.
http://promo.yahoo.com/sbc/