From: Rusty Russell <rusty@rustcorp.com.au>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: lkml - Kernel Mailing List <linux-kernel@vger.kernel.org>,
virtualization <virtualization@lists.linux-foundation.org>
Subject: [PATCH 2/2] lguest: handle new paravirt lazy mode (fix userspace segfaults)
Date: Sun, 29 Apr 2007 23:36:58 +1000 [thread overview]
Message-ID: <1177853818.30071.182.camel@localhost.localdomain> (raw)
In-Reply-To: <1177853697.30071.179.camel@localhost.localdomain>
There's a new paravirt_lazy_mode mode in town.
Well, it's spelled "mode", but it's pronounced "hack".
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
drivers/lguest/lguest.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
===================================================================
--- a/drivers/lguest/lguest.c
+++ b/drivers/lguest/lguest.c
@@ -59,9 +59,13 @@ static enum paravirt_lazy_mode lazy_mode
static enum paravirt_lazy_mode lazy_mode;
static void lguest_lazy_mode(enum paravirt_lazy_mode mode)
{
- lazy_mode = mode;
- if (mode == PARAVIRT_LAZY_NONE)
+ if (mode == PARAVIRT_LAZY_FLUSH)
hcall(LHCALL_FLUSH_ASYNC, 0, 0, 0);
+ else {
+ lazy_mode = mode;
+ if (mode == PARAVIRT_LAZY_NONE)
+ hcall(LHCALL_FLUSH_ASYNC, 0, 0, 0);
+ }
}
static void lazy_hcall(unsigned long call,
parent reply other threads:[~2007-04-29 13:36 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <1177853697.30071.179.camel@localhost.localdomain>]
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