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Diffstat (limited to 'include/asm-sparc64/system.h')
-rw-r--r--include/asm-sparc64/system.h14
1 files changed, 4 insertions, 10 deletions
diff --git a/include/asm-sparc64/system.h b/include/asm-sparc64/system.h
index fd12ca386f48..f9be2c5b4dc9 100644
--- a/include/asm-sparc64/system.h
+++ b/include/asm-sparc64/system.h
@@ -139,19 +139,13 @@ extern void __flushw_user(void);
#define flush_user_windows flushw_user
#define flush_register_windows flushw_all
-#define prepare_arch_switch(rq, next) \
-do { spin_lock(&(next)->switch_lock); \
- spin_unlock(&(rq)->lock); \
+/* Don't hold the runqueue lock over context switch */
+#define __ARCH_WANT_UNLOCKED_CTXSW
+#define prepare_arch_switch(next) \
+do { \
flushw_all(); \
} while (0)
-#define finish_arch_switch(rq, prev) \
-do { spin_unlock_irq(&(prev)->switch_lock); \
-} while (0)
-
-#define task_running(rq, p) \
- ((rq)->curr == (p) || spin_is_locked(&(p)->switch_lock))
-
/* See what happens when you design the chip correctly?
*
* We tell gcc we clobber all non-fixed-usage registers except