block: disable I/O stats accounting by default

While Android userspace (e.g. storaged) does use iostats via /proc/diskstats, init will explicitly enable iostats for the devices on which it is primarily used - sda and sdf. Avoid the 0.5-1% overhead for block devices that do not need it. Signed-off-by: Danny Lin <[email protected]> [@0ctobot: Adapted for msm-4.19] Signed-off-by: Adam W. Willis <[email protected]> Signed-off-by: dreamisbaka <[email protected]> Signed-off-by: techyminati <[email protected]> # Conflicts: # include/linux/blkdev.h
Mikazuuu07 · Sep 26, 2021 · c655734 · c655734
1 parent 8bc6924
commit c655734
Showing 1 changed file with 2 additions and 4 deletions.
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
@@ -661,13 +661,11 @@ struct request_queue {
 #define QUEUE_FLAG_QUIESCED    28	/* queue has been quiesced */
 #define QUEUE_FLAG_INLINECRYPT 29	/* inline crypto support */
 
-#define QUEUE_FLAG_DEFAULT	((1 << QUEUE_FLAG_IO_STAT) |		\
-				 (1 << QUEUE_FLAG_STACKABLE)	|	\
+#define QUEUE_FLAG_DEFAULT	((1 << QUEUE_FLAG_STACKABLE)	|	\
 				 (1 << QUEUE_FLAG_SAME_COMP)	|	\
 				 (1 << QUEUE_FLAG_ADD_RANDOM))
 
-#define QUEUE_FLAG_MQ_DEFAULT	((1 << QUEUE_FLAG_IO_STAT) |		\
-				 (1 << QUEUE_FLAG_STACKABLE)	|	\
+#define QUEUE_FLAG_MQ_DEFAULT	((1 << QUEUE_FLAG_STACKABLE)	|	\
 				 (1 << QUEUE_FLAG_SAME_COMP)	|	\
 				 (1 << QUEUE_FLAG_POLL))