Subject: [merged] mm-migrate-add-comment-about-permanent-failure-path.patch removed from -mm tree
To: n-horiguchi@xxxxxxxxxxxxx,aquini@xxxxxxxxxx,cl@xxxxxxxxx,iamjoonsoo.kim@xxxxxxx,liwanp@xxxxxxxxxxxxxxxxxx,mgorman@xxxxxxx,riel@xxxxxxxxxx,vbabka@xxxxxxx,zhangyanfei@xxxxxxxxxxxxxx,mm-commits@xxxxxxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Wed, 22 Jan 2014 12:15:04 -0800
The patch titled
Subject: mm/migrate: add comment about permanent failure path
has been removed from the -mm tree. Its filename was
mm-migrate-add-comment-about-permanent-failure-path.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Subject: mm/migrate: add comment about permanent failure path
Let's add a comment about where the failed page goes to, which makes code
more readable.
Signed-off-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Acked-by: Christoph Lameter <cl@xxxxxxxxx>
Reviewed-by: Wanpeng Li <liwanp@xxxxxxxxxxxxxxxxxx>
Acked-by: Rafael Aquini <aquini@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Wanpeng Li <liwanp@xxxxxxxxxxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Zhang Yanfei <zhangyanfei@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/migrate.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff -puN mm/migrate.c~mm-migrate-add-comment-about-permanent-failure-path mm/migrate.c
--- a/mm/migrate.c~mm-migrate-add-comment-about-permanent-failure-path
+++ a/mm/migrate.c
@@ -1125,7 +1125,12 @@ int migrate_pages(struct list_head *from
nr_succeeded++;
break;
default:
- /* Permanent failure */
+ /*
+ * Permanent failure (-EBUSY, -ENOSYS, etc.):
+ * unlike -EAGAIN case, the failed page is
+ * removed from migration page list and not
+ * retried in the next outer loop.
+ */
nr_failed++;
break;
}
_
Patches currently in -mm which might be from n-horiguchi@xxxxxxxxxxxxx are
origin.patch
fs-proc-pagec-add-pageanon-check-to-surely-detect-thp.patch
mm-memory-failurec-shift-page-lock-from-head-page-to-tail-page-after-thp-split.patch
mm-new_vma_page-cannot-see-null-vma-for-hugetlb-pages.patch
mm-do_mincore-cleanup.patch
mm-migratec-fix-setting-of-cpupid-on-page-migration-twice-against-normal-page.patch
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