[v3,14/20] vmw_balloon: add reset stat
diff mbox series

Message ID 20180926191336.101885-15-namit@vmware.com
State New
Headers show
Series
  • vmw_balloon: compaction, shrinker, 64-bit, etc.
Related show

Commit Message

Nadav Amit Sept. 26, 2018, 7:13 p.m. UTC
It is useful to expose how many times the balloon resets. If it happens
more than very rarely - this is an indication for a problem.

Reviewed-by: Xavier Deguillard <xdeguillard@vmware.com>
Signed-off-by: Nadav Amit <namit@vmware.com>
---
 drivers/misc/vmw_balloon.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

Patch
diff mbox series

diff --git a/drivers/misc/vmw_balloon.c b/drivers/misc/vmw_balloon.c
index 99a831ea82c0..9b0b3fa4f836 100644
--- a/drivers/misc/vmw_balloon.c
+++ b/drivers/misc/vmw_balloon.c
@@ -218,7 +218,8 @@  enum vmballoon_stat_page {
 enum vmballoon_stat_general {
 	VMW_BALLOON_STAT_TIMER,
 	VMW_BALLOON_STAT_DOORBELL,
-	VMW_BALLOON_STAT_LAST = VMW_BALLOON_STAT_DOORBELL
+	VMW_BALLOON_STAT_RESET,
+	VMW_BALLOON_STAT_LAST = VMW_BALLOON_STAT_RESET
 };
 
 #define VMW_BALLOON_STAT_NUM		(VMW_BALLOON_STAT_LAST + 1)
@@ -1303,6 +1304,7 @@  static void vmballoon_reset(struct vmballoon *b)
 		vmballoon_deinit_batching(b);
 	}
 
+	vmballoon_stats_gen_inc(b, VMW_BALLOON_STAT_RESET);
 	b->reset_required = false;
 
 	error = vmballoon_vmci_init(b);
@@ -1380,7 +1382,8 @@  static const char * const vmballoon_stat_page_names[] = {
 
 static const char * const vmballoon_stat_names[] = {
 	[VMW_BALLOON_STAT_TIMER]		= "timer",
-	[VMW_BALLOON_STAT_DOORBELL]		= "doorbell"
+	[VMW_BALLOON_STAT_DOORBELL]		= "doorbell",
+	[VMW_BALLOON_STAT_RESET]		= "reset",
 };
 
 static int vmballoon_enable_stats(struct vmballoon *b)