On Sat, Dec 03, 2005 at 01:24:48PM -0500, Thor Lancelot Simon wrote:
> On Sat, Dec 03, 2005 at 09:38:40AM +0000, Rui Paulo wrote:
> > On 2005.12.02 11:06:24 -0500, der Mouse wrote:
> > | 
> > | It is.  sysctl is.  I've often considered building a sysctlfs, which
> > | would present the sysctl hierarchy and data in a filesystem form.
> > 
> > I suppose we had the same idea :-)
> 
> I agree that it is a good idea to keep this stuff within the filesystem
> namespace.  I do not, however, think that we should use normal filesystem
> system calls to access the data.
> 
> I have some painful experience with coherency issues between the kernel,
> userspace, and multiple processes in kernfs on Linux and I do *not* want
> to go there again. (...)
 
You mean the (in)famous Linux method: echo 1 > /proc/sys/kernel/foo ?
This is really hateful.
Or "echo scsi add-single-device ... > /proc/scsi/scsi" [*]
which is even "better".

[*] I actually had to do 
"echo scsi add-single-device ... | dd of=/proc/scsi/scsi" instead, don't ask
why...

Pavel