[Xen-changelog] [xen-4.1-testing] unmodified drivers: use upstream sync_bitops if available

[Xen patchbot-4.1-testing <patchbot@xxxxxxx>]

# HG changeset patch
# User Jan Beulich <jbeulich@xxxxxxxx>
# Date 1337010658 -3600
# Node ID bb1ab1475ce8ed72e5ea168484419eecdb1add7e
# Parent  0c84b48831c8b92f4eb907b98e592fbb8909c940
unmodified drivers: use upstream sync_bitops if available

The forward ported xenlinux sources in openSuSE 12.2 were switched
from the old synch_bitops to the sync_bitops since kernel version
3.3. Add compat macros to use either old or new helpers depending on
used kernel source version.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
Signed-off-by: Olaf Hering <olaf@xxxxxxxxx>
xen-unstable changeset:   25069:46bf3ab42baf
xen-unstable date:        Fri Mar 16 11:35:06 2012 +0100
---


diff -r 0c84b48831c8 -r bb1ab1475ce8 
unmodified_drivers/linux-2.6/compat-include/xen/platform-compat.h
--- a/unmodified_drivers/linux-2.6/compat-include/xen/platform-compat.h Mon May 
14 16:50:21 2012 +0100
+++ b/unmodified_drivers/linux-2.6/compat-include/xen/platform-compat.h Mon May 
14 16:50:58 2012 +0100
@@ -161,4 +161,14 @@ typedef irqreturn_t (*irq_handler_t)(int
 #define atomic_cmpxchg(v, old, new) (cmpxchg(&((v)->counter), (old), (new)))
 #endif
 
+#ifdef sync_test_bit
+#define synch_change_bit               sync_change_bit
+#define synch_clear_bit                        sync_clear_bit
+#define synch_set_bit                  sync_set_bit
+#define synch_test_and_change_bit      sync_test_and_change_bit
+#define synch_test_and_clear_bit       sync_test_and_clear_bit
+#define synch_test_and_set_bit         sync_test_and_set_bit
+#define synch_test_bit                 sync_test_bit
 #endif
+
+#endif

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