Add kpreempt() compatibility macro

This is needed for the Illumos #4045 write throttle patch.  It is used
in the arc eviction code to avoid blocking all arc activity by sitting on
arcs_mtx too long.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #286

diff --git a/include/sys/disp.h b/include/sys/disp.h
index 9614a47c41f7be4b784a44aa7aa2c1b153ed916f..c3077a73fcf11622f49761c63ef2ec26f77f73f7 100644 (file)
--- a/include/sys/disp.h
+++ b/include/sys/disp.h
@@ -27,6 +27,7 @@
 
 #include <linux/preempt.h>
 
+#define        kpreempt(unused)        schedule()
 #define        kpreempt_disable()      preempt_disable()
 #define        kpreempt_enable()       preempt_enable()