sgi-gru: improvements to GRU debug messages & statistics

Improvements to GRU debug messages & statistics.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufault.c
index f85d27306789..61aa80a8411b 100644
--- a/drivers/misc/sgi-gru/grufault.c
+++ b/drivers/misc/sgi-gru/grufault.c
@@ -449,6 +449,7 @@ irqreturn_t gru_intr(int irq, void *dev_id)
                         up_read(&gts->ts_mm->mmap_sem);
                 } else {
                         tfh_user_polling_mode(tfh);
+                        STAT(intr_mm_lock_failed);
                 }
         }
         return IRQ_HANDLED;
@@ -508,8 +509,10 @@ int gru_handle_user_call_os(unsigned long cb)
          * context.
          */
         if (gts->ts_tgid_owner == current->tgid && gts->ts_blade >= 0 &&
-                                gts->ts_blade != uv_numa_blade_id())
+                                gts->ts_blade != uv_numa_blade_id()) {
+                STAT(call_os_offnode_reference);
                 gts->ts_force_unload = 1;
+        }
 
         ret = -EAGAIN;
         cbrnum = thread_cbr_number(gts, ucbnum);