[Xen-changelog] [qemu-xen-unstable] ignore xenstore events while paused

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

commit 8f09f47af0a074c97351b53c178267d670d24686
Author: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Date:   Fri Sep 4 16:17:39 2009 +0100

    ignore xenstore events while paused
    
    when qemu is paused it shouldn't try to handle xenstore events,
    especially because when xend removes nodes on xenstore some
    spurious events could be generated causing qemu to exit unexpectedly.
    
    Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
---
 xenstore.c |   15 ++++++++++-----
 1 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/xenstore.c b/xenstore.c
index 8222df4..aee96f0 100644
--- a/xenstore.c
+++ b/xenstore.c
@@ -921,6 +921,16 @@ void xenstore_process_event(void *opaque)
     if (!vec)
         return;
 
+    /* process dm-command events before everything else */
+    if (!strcmp(vec[XS_WATCH_TOKEN], "dm-command")) {
+        xenstore_process_dm_command_event();
+        goto out;
+    }
+
+    /* if we are paused don't process anything else */
+    if (xen_pause_requested)
+        goto out;
+
     for (i = 0; xenstore_watch_callbacks &&  xenstore_watch_callbacks[i].path; 
i++)
        if (xenstore_watch_callbacks[i].cb &&
            !strcmp(vec[XS_WATCH_TOKEN], xenstore_watch_callbacks[i].path))
@@ -932,11 +942,6 @@ void xenstore_process_event(void *opaque)
         goto out;
     }
 
-    if (!strcmp(vec[XS_WATCH_TOKEN], "dm-command")) {
-        xenstore_process_dm_command_event();
-        goto out;
-    }
-
     if (strncmp(vec[XS_WATCH_TOKEN], "hd", 2) ||
         strlen(vec[XS_WATCH_TOKEN]) != 3)
         goto out;
--
generated by git-patchbot for /home/xen/git/qemu-xen-unstable.git

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