[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20070110.162747.28789587.davem@davemloft.net>
Date: Wed, 10 Jan 2007 16:27:47 -0800 (PST)
From: David Miller <davem@...emloft.net>
To: jafo@...my.com
Cc: linux-kernel@...r.kernel.org
Subject: Re: select() setting ERESTARTNOHAND (514).
From: Sean Reifschneider <jafo@...my.com>
Date: Wed, 10 Jan 2007 16:42:38 -0700
> In looking at the select() code, I see that there are definitely cases
> where sys_select() or sys_pselect7() can return -ERESTARTNOHAND. However,
> I don't know if this is expected to be caught elsewhere, or if returning it
> here would send it back to user-space. Worse, I don't fully understand
> what the impact would be of trapping the ERESTARTNOHAND in the
> sys_select/sys_pselect7 functions would be.
It gets caught by the return into userspace code.
Specifically the signal dispatch should repair that return
value to a valid error return code when it tries to dispatch
the signal that select() set in the task struct.
Note that select() only returns these values when signal_pending()
is true.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists