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| author | Keir Fraser <keir.fraser@citrix.com> | 2009-05-26 09:52:59 +0100 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2009-05-26 09:52:59 +0100 |
| commit | c7c69094e5ce66ed7a2b5d05420a7d1c01e3d6c4 (patch) | |
| tree | 806700b1947e1d1073ec4598bd12e9db370a839c /unmodified_drivers | |
| parent | 1d89b445615a361f0e3fbabc77496157cce34835 (diff) | |
| download | xen-c7c69094e5ce66ed7a2b5d05420a7d1c01e3d6c4.tar.gz xen-c7c69094e5ce66ed7a2b5d05420a7d1c01e3d6c4.tar.bz2 xen-c7c69094e5ce66ed7a2b5d05420a7d1c01e3d6c4.zip | |
PV-on-HVM: Define atomic_cmpxchg() for old Linux kernels.
Signed-off-by: KUWAMURA Shin'ya <kuwa@jp.fujitsu.com>
Diffstat (limited to 'unmodified_drivers')
| -rw-r--r-- | unmodified_drivers/linux-2.6/compat-include/xen/platform-compat.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/unmodified_drivers/linux-2.6/compat-include/xen/platform-compat.h b/unmodified_drivers/linux-2.6/compat-include/xen/platform-compat.h index eceac2a4ff..fd696704ee 100644 --- a/unmodified_drivers/linux-2.6/compat-include/xen/platform-compat.h +++ b/unmodified_drivers/linux-2.6/compat-include/xen/platform-compat.h @@ -157,4 +157,8 @@ typedef irqreturn_t (*irq_handler_t)(int, void *, struct pt_regs *); #define setup_xen_features xen_setup_features #endif +#ifndef atomic_cmpxchg +#define atomic_cmpxchg(v, old, new) (cmpxchg(&((v)->counter), (old), (new))) +#endif + #endif |