[Xen-devel] [PATCH][linux-2.6.18-xen.hg]

[Ben Guthro <bguthro@xxxxxxxxxxxxxxx>]

This patch makes the code adding PF_NOFREEZE conditional on the kernel 
version.
PF_NOFREEZE first showed up in 2.6.6-rc2

This allows the xenbus code to continue to compile against kernels pre 
2.6.6 - like SLES9 (2.6.5)
Patch: linux-xenbus-legacy.patch
Signed-off-by: Ben Guthro <bguthro@xxxxxxxxxxxxxxx>


diff -r d2451033c8df drivers/xen/xenbus/xenbus_xs.c
--- a/drivers/xen/xenbus/xenbus_xs.c    Wed Jul 25 14:59:21 2007 -0400
+++ b/drivers/xen/xenbus/xenbus_xs.c    Thu Jul 26 09:24:08 2007 -0400
@@ -717,8 +717,10 @@ static int xenwatch_thread(void *unused)
 {
        struct list_head *ent;
        struct xs_stored_msg *msg;
-
+        
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,6)       
        current->flags |= PF_NOFREEZE;
+#endif
        for (;;) {
                wait_event_interruptible(watch_events_waitq,
                                         !list_empty(&watch_events));
@@ -837,7 +839,9 @@ static int xenbus_thread(void *unused)
 {
        int err;
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,6)  
        current->flags |= PF_NOFREEZE;
+#endif
        for (;;) {
                err = process_msg();
                if (err)

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