From: Keir Fraser <keir.fraser@eu.citrix.com>
To: Juergen Gross <juergen.gross@ts.fujitsu.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: Re: do_domctl and EAGAIN
Date: Tue, 07 Apr 2009 09:49:00 +0100 [thread overview]
Message-ID: <C600D20C.80F5%keir.fraser@eu.citrix.com> (raw)
In-Reply-To: <49DB1077.5070601@ts.fujitsu.com>
On 07/04/2009 09:36, "Juergen Gross" <juergen.gross@ts.fujitsu.com> wrote:
> XEN_SYSCTL_pm_op (this one is tested by caller)
Yes, and indeed has to be checked by the caller, rather than hidden, since
it's an odd EAGAIN-with-side-effects.
> xenstore calls (tested by caller)
Not really hypercalls as such.
> mmuext_op (NOT always checked by caller)
Nah, that doesn't return EINTR. EAGAIN/EINTR is used a lot in Xen's mm.c,
but shouldn't leak into hypercall return values. That'd be a
non-backward-compatible bug.
-- Keir
next prev parent reply other threads:[~2009-04-07 8:49 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-07 7:04 do_domctl and EAGAIN Juergen Gross
2009-04-07 7:20 ` Keir Fraser
2009-04-07 7:41 ` Juergen Gross
2009-04-07 7:47 ` Keir Fraser
2009-04-07 8:36 ` Juergen Gross
2009-04-07 8:49 ` Keir Fraser [this message]
2009-04-07 8:03 ` Keir Fraser
2009-04-07 8:19 ` Juergen Gross
2009-04-07 8:53 ` Keir Fraser
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