* [merged] mm-correct-the-comment-when-reclaimed-pages-exceed-the-scanned-pages.patch removed from -mm tree
@ 2017-06-21 22:05 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2017-06-21 22:05 UTC (permalink / raw)
To: minchan, mm-commits, zhongjiang
The patch titled
Subject: mm: correct the comment when reclaimed pages exceed the scanned pages
has been removed from the -mm tree. Its filename was
mm-correct-the-comment-when-reclaimed-pages-exceed-the-scanned-pages.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: zhongjiang <zhongjiang@huawei.com>
Subject: mm: correct the comment when reclaimed pages exceed the scanned pages
e1587a494540 ("mm: vmpressure: fix sending wrong events on underflow")
declare that reclaimed pages exceed the scanned pages due to the thp
reclaim. it is incorrect because THP will be spilt to normal page and
loop again. which will result in the scanned pages increment.
[akpm@linux-foundation.org: tweak comment text]
Link: http://lkml.kernel.org/r/1496824266-25235-1-git-send-email-zhongjiang@huawei.com
Signed-off-by: zhongjiang <zhongjiang@huawei.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/vmpressure.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff -puN mm/vmpressure.c~mm-correct-the-comment-when-reclaimed-pages-exceed-the-scanned-pages mm/vmpressure.c
--- a/mm/vmpressure.c~mm-correct-the-comment-when-reclaimed-pages-exceed-the-scanned-pages
+++ a/mm/vmpressure.c
@@ -115,9 +115,9 @@ static enum vmpressure_levels vmpressure
unsigned long pressure = 0;
/*
- * reclaimed can be greater than scanned in cases
- * like THP, where the scanned is 1 and reclaimed
- * could be 512
+ * reclaimed can be greater than scanned for things such as reclaimed
+ * slab pages. shrink_node() just adds reclaimed pages without a
+ * related increment to scanned pages.
*/
if (reclaimed >= scanned)
goto out;
_
Patches currently in -mm which might be from zhongjiang@huawei.com are
mm-page_owner-align-with-pageblock_nr-pages.patch
mm-walk-the-zone-in-pageblock_nr_pages-steps.patch
signal-avoid-undefined-behaviour-in-kill_something_info.patch
exit-avoid-undefined-behaviour-when-call-wait4.patch
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2017-06-21 22:05 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-06-21 22:05 [merged] mm-correct-the-comment-when-reclaimed-pages-exceed-the-scanned-pages.patch removed from -mm tree akpm
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).