blkcg: kill unused field nr_undestroyed_grps

'nr_undestroyed_grps' in struct throtl_data was used to count the number of throtl_grp related with throtl_data, but now throtl_grp is tracked by blkcg_gq, so it is useless anymore. Signed-off-by: Hou Tao <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
josf · Aug 4, 2016 · bfd279a · bfd279a
1 parent dc5ff2b
commit bfd279a
Showing 1 changed file with 0 additions and 5 deletions.
diff --git a/block/blk-throttle.c b/block/blk-throttle.c
@@ -145,11 +145,6 @@ struct throtl_data
 	/* Total Number of queued bios on READ and WRITE lists */
 	unsigned int nr_queued[2];
 
-	/*
-	 * number of total undestroyed groups
-	 */
-	unsigned int nr_undestroyed_grps;
-
 	/* Work for dispatching throttled bios */
 	struct work_struct dispatch_work;
 };