The patch titled
Subject: mm: correct return value of migrate_pages()
has been added to the -mm tree. Its filename is
mm-correct-return-value-of-migrate_pages.patch
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From: Joonsoo Kim <js1304@xxxxxxxxx>
Subject: mm: correct return value of migrate_pages()
migrate_pages() should return number of pages not migrated or error code.
When unmap_and_move return -EAGAIN, outer loop is re-execution without
initialising nr_failed. This makes nr_failed over-counted.
So this patch correct it by initialising nr_failed in outer loop.
Signed-off-by: Joonsoo Kim <js1304@xxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Mel Gorman <mel@xxxxxxxxx>
Cc: Michal Nazarewicz <mina86@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/migrate.c | 1 +
1 file changed, 1 insertion(+)
diff -puN mm/migrate.c~mm-correct-return-value-of-migrate_pages mm/migrate.c
--- a/mm/migrate.c~mm-correct-return-value-of-migrate_pages
+++ a/mm/migrate.c
@@ -1069,6 +1069,7 @@ int migrate_pages(struct list_head *from
for(pass = 0; pass < 10 && retry; pass++) {
retry = 0;
+ nr_failed = 0;
list_for_each_entry_safe(page, page2, from, lru) {
cond_resched();
_
Subject: Subject: mm: correct return value of migrate_pages()
Patches currently in -mm which might be from js1304@xxxxxxxxx are
linux-next.patch
mm-correct-return-value-of-migrate_pages.patch
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