[184/212] mm/vmscan: remove misleading setting to sc->priority

Commit Message

Andrew Morton Sept. 2, 2021, 9:59 p.m. UTC

From: Miaohe Lin <[e-mail]>
Subject: mm/vmscan: remove misleading setting to sc->priority

The priority field of sc is used to control how many pages we should scan
at once while we always traverse the list to shrink the pages in these
functions.  So these settings are unneeded and misleading.

Link: https://lkml.kernel.org/r/[e-mail]
Signed-off-by: Miaohe Lin <[e-mail]>
Cc: Alex Shi <[e-mail]>
Cc: Alistair Popple <[e-mail]>
Cc: David Hildenbrand <[e-mail]>
Cc: Hillf Danton <[e-mail]>
Cc: Jens Axboe <[e-mail]>
Cc: Johannes Weiner <[e-mail]>
Cc: John Hubbard <[e-mail]>
Cc: Joonsoo Kim <[e-mail]>
Cc: Matthew Wilcox <[e-mail]>
Cc: Michal Hocko <[e-mail]>
Cc: Minchan Kim <[e-mail]>
Cc: Shaohua Li <[e-mail]>
Cc: Vlastimil Babka <[e-mail]>
Cc: Yu Zhao <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
---

 mm/vmscan.c |    2 --
 1 file changed, 2 deletions(-)

Patch

--- a/mm/vmscan.c~mm-vmscan-remove-misleading-setting-to-sc-priority
+++ a/mm/vmscan.c
@@ -1820,7 +1820,6 @@  unsigned int reclaim_clean_pages_from_li
 {
 	struct scan_control sc = {
 		.gfp_mask = GFP_KERNEL,
-		.priority = DEF_PRIORITY,
 		.may_unmap = 1,
 	};
 	struct reclaim_stat stat;
@@ -2445,7 +2444,6 @@  unsigned long reclaim_pages(struct list_
 	unsigned int noreclaim_flag;
 	struct scan_control sc = {
 		.gfp_mask = GFP_KERNEL,
-		.priority = DEF_PRIORITY,
 		.may_writepage = 1,
 		.may_unmap = 1,
 		.may_swap = 1,