HFI1: shorten lock held spin for SDMA status changes

2018-04-18 18:15:59 +09:00
parent 166c6105ef
commit 91d732308d
1 changed files with 1 additions and 1 deletions
--- a/kernel/sdma.c
+++ b/kernel/sdma.c
@ -393,7 +393,7 @@ nodesc:
 		unsigned long ts = rdtsc();

 		while ((tx->num_desc > sde->desc_avail) &&
-				(rdtsc() - ts) < 50000000) {
+				(rdtsc() - ts) < 5000000) {
 			sde->desc_avail = sdma_descq_freecnt(sde);
 			cpu_pause();
 		}