[PATCH v3 1/2] mm/page-writeback.c: Update comment for BANDWIDTH_INTERVAL

[Tang Yizhou]

From: Tang Yizhou <yizhou.tang@xxxxxxxxxx>

The name of the BANDWIDTH_INTERVAL macro is misleading, as it is not
only used in the bandwidth update functions wb_update_bandwidth() and
__wb_update_bandwidth(), but also in the dirty limit update function
domain_update_dirty_limit().

Currently, we haven't found an ideal name, so update the comment only.

Signed-off-by: Tang Yizhou <yizhou.tang@xxxxxxxxxx>
---
 mm/page-writeback.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index fcd4c1439cb9..c7c6b58a8461 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -54,7 +54,7 @@
 #define DIRTY_POLL_THRESH	(128 >> (PAGE_SHIFT - 10))
 
 /*
- * Estimate write bandwidth at 200ms intervals.
+ * Estimate write bandwidth or update dirty limit at 200ms intervals.
  */
 #define BANDWIDTH_INTERVAL	max(HZ/5, 1)
 
-- 
2.25.1