The patch titled
Subject: mm/damon: fix error return code in damon_reclaim_turn()
has been added to the -mm tree. Its filename is
mm-damon-introduce-damon-based-reclamation-damon_reclaim-fix.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-damon-introduce-damon-based-reclamation-damon_reclaim-fix.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-damon-introduce-damon-based-reclamation-damon_reclaim-fix.patch
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------------------------------------------------------
From: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Subject: mm/damon: fix error return code in damon_reclaim_turn()
If damon_reclaim_new_scheme() fails, it should return error code in
damon_reclaim_turn()
Link: https://lkml.kernel.org/r/20211025124500.2758060-1-yangyingliang@xxxxxxxxxx
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Reviewed-by: SeongJae Park <sj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/damon/reclaim.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/mm/damon/reclaim.c~mm-damon-introduce-damon-based-reclamation-damon_reclaim-fix
+++ a/mm/damon/reclaim.c
@@ -292,8 +292,10 @@ static int damon_reclaim_turn(bool on)
/* Will be freed by 'damon_set_schemes()' below */
scheme = damon_reclaim_new_scheme();
- if (!scheme)
+ if (!scheme) {
+ err = -ENOMEM;
goto free_region_out;
+ }
err = damon_set_schemes(ctx, &scheme, 1);
if (err)
goto free_scheme_out;
_
Patches currently in -mm which might be from yangyingliang@xxxxxxxxxx are
mm-damon-introduce-damon-based-reclamation-damon_reclaim-fix.patch
