Re: [PATCH 5/16] 2.6.17-rc6 perfmon2 patch for review: new sysfs support

[Chuck Ebbert]

In-Reply-To: <200606150907.k5F97YtU008130@xxxxxxxxxxxxxxxxx>

On Thu, 15 Jun 2006 02:07:34 -0700, Stephane Eranian wrote:

> --- linux-2.6.17-rc6.orig/perfmon/perfmon_sysfs.c     1969-12-31 16:00:00.000000000 -0800
> +++ linux-2.6.17-rc6/perfmon/perfmon_sysfs.c  2006-06-08 05:36:31.000000000 -0700
 ...
> +struct pfm_controls pfm_controls = {
> +     .sys_group = PFM_GROUP_PERM_ANY,
> +     .task_group = PFM_GROUP_PERM_ANY,
> +     .arg_size_max = PAGE_SIZE,
> +     .smpl_buf_size_max = ~0,
> +};

This means that by default anyone can create monitoring sessions.
It should start out as restrictive as possible; the admin can relax
permissions as needed.

-- 
Chuck
 "You can't read a newspaper if you can't read."  --George W. Bush
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