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Date: Tue, 28 Jun 2011 23:29:26 +0200
From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
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Subject: Re: [Xenomai-core] [Xenomai-git] Jan Kiszka : nucleus: Allow
 drop_u_mode syscall from	any context
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On 06/28/2011 11:01 PM, GIT version control wrote:
> Module: xenomai-jki
> Branch: for-upstream
> Commit: 5597470d84584846875e8a35309e6302c768addf
> URL:    http://git.xenomai.org/?p=xenomai-jki.git;a=commit;h=5597470d84584846875e8a35309e6302c768addf
> 
> Author: Jan Kiszka <jan.kiszka@domain.hid>
> Date:   Tue Jun 28 22:10:07 2011 +0200
> 
> nucleus: Allow drop_u_mode syscall from any context
> 
> xnshadow_sys_drop_u_mode already checks if the caller is a shadow. It
> does that without issuing a warning message if the check fails - in
> contrast to do_hisyscall_event. As user space may call this cleanup
> service even for non-shadow threads (e.g. after shadow creation failed),
> we better silence this warning.
> 
> Signed-off-by: Jan Kiszka <jan.kiszka@domain.hid>

Jan,

I have a branch here, which allocates u_mode in the shared heap, so,
this syscall is about to become unnecessary.

See:
http://git.xenomai.org/?p=xenomai-gch.git;a=shortlog;h=refs/heads/u_mode

-- 
                                                                Gilles.