The patch titled
Subject: mm/damon/paddr: initialize nr_succeeded in __damon_pa_migrate_folio_list()
has been added to the -mm mm-unstable branch. Its filename is
mm-damon-paddr-initialize-nr_succeeded-in-__damon_pa_migrate_folio_list.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-paddr-initialize-nr_succeeded-in-__damon_pa_migrate_folio_list.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: SeongJae Park <sj@xxxxxxxxxx>
Subject: mm/damon/paddr: initialize nr_succeeded in __damon_pa_migrate_folio_list()
Date: Mon, 1 Jul 2024 09:53:32 -0700
The variable is supposed to be set via later migrate_pages() call.
However, the function does not do that when CONFIG_MIGRATION is unset.
Initialize the variable to zero.
Link: https://lkml.kernel.org/r/20240701165332.47495-1-sj@xxxxxxxxxx
Fixes: 5311c0a2eee3 ("mm/damon/paddr: introduce DAMOS_MIGRATE_COLD action for demotion")
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Closes: https://lore.kernel.org/r/202406251102.GE07hqfQ-lkp@xxxxxxxxx/
Cc: Honggyu Kim <honggyu.kim@xxxxxx>
Cc: Hyeongtak Ji <hyeongtak.ji@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/damon/paddr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/damon/paddr.c~mm-damon-paddr-initialize-nr_succeeded-in-__damon_pa_migrate_folio_list
+++ a/mm/damon/paddr.c
@@ -332,7 +332,7 @@ static unsigned int __damon_pa_migrate_f
struct list_head *migrate_folios, struct pglist_data *pgdat,
int target_nid)
{
- unsigned int nr_succeeded;
+ unsigned int nr_succeeded = 0;
nodemask_t allowed_mask = NODE_MASK_NONE;
struct migration_target_control mtc = {
/*
_
Patches currently in -mm which might be from sj@xxxxxxxxxx are
mm-damon-core-merge-regions-aggressively-when-max_nr_regions-is-unmet.patch
mm-damon-core-merge-regions-aggressively-when-max_nr_regions-is-unmet-fix.patch
mm-damon-core-merge-regions-aggressively-when-max_nr_regions-is-unmet-fix-2.patch
mm-damon-paddr-initialize-nr_succeeded-in-__damon_pa_migrate_folio_list.patch
docs-mm-damon-design-fix-two-typos.patch
docs-mm-damon-design-clarify-regions-merging-operation.patch
docs-admin-guide-mm-damon-start-add-access-pattern-snapshot-example.patch
docs-mm-damon-design-add-links-from-overall-architecture-to-sections-of-details.patch
docs-mm-damon-design-move-configurable-operations-set-section-into-operations-set-layer-section.patch
docs-mm-damon-design-remove-programmable-modules-section-in-favor-of-modules-section.patch
docs-mm-damon-design-add-links-to-sections-of-damon-sysfs-interface-usage-doc.patch
docs-mm-damon-index-add-links-to-design.patch
docs-mm-damon-index-add-links-to-admin-guide-doc.patch
