mutex lock for filesystem list.

[Fernando Apesteguía]

On 1/13/08, Ed Schouten <ed at fxq.nl> wrote:
> * Fernando Apesteguía <fernando.apesteguia at gmail.com> wrote:
> > I'm trying to write a patch to add a file to the linprocfs. This file
> > provides the list of filesystems present in the kernel.
> >
> > Though I was able to create the file and traverse the list, it's
> > clearly unsafe. I would like to know wich semaphore I should lock
> > cause I can't find it in the kernel code.
> >
> > In addition I'd like to know if there is a book similar to the
> > Understanding the Linux kernel, but for freebsd. What is the best
> > information source to get introduced in the freebsd kernel programming
> > (apart of the code itself)?
>
> You're probably looking through the mountlist? Then you need to make
> sure you lock the mountlist_mtx. See src/sys/kern/vfs_mount.c.

Hi,

My apologies for the delay with the reply by due to a failure in my
DSL line, I had no internet connection for several days :(

Actually I'm using vfsconf list. What's the difference between
mountlist and the one I'm using?

Best Regards

>
> --
>  Ed Schouten <ed at fxq.nl>
>  WWW: http://g-rave.nl/
>
>