Re: [PATCH] protect remove_proc_entry

[Steven Rostedt]

On Fri, 2005-12-30 at 17:09 -0500, Steven Rostedt wrote:

> Index: linux-2.6.15-rc7/fs/proc/generic.c
> ===================================================================
> --- linux-2.6.15-rc7.orig/fs/proc/generic.c	2005-12-30 14:19:39.000000000 -0500
> +++ linux-2.6.15-rc7/fs/proc/generic.c	2005-12-30 17:05:56.000000000 -0500
> @@ -693,6 +693,8 @@
>  	if (!parent && xlate_proc_name(name, &parent, &fn) != 0)
>  		goto out;
>  	len = strlen(fn);
> +
> +	lock_kernel();
>  	for (p = &parent->subdir; *p; p=&(*p)->next ) {
>  		if (!proc_match(len, fn, *p))
>  			continue;
> @@ -713,6 +715,7 @@
>  		}
>  		break;
>  	}
> +	unlock_kernel();
>  out:
>  	return;
>  }
> 

FYI, to make sure that this solves the problem, I'm removing my locking
in my kernel and using this instead.  It usually crashes in a day or
two, so I can say this works if it makes it three days.

-- Steve


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