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| author | Jinjiang Tu <tujinjiang@huawei.com> | 2025-03-18 16:39:38 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-20 10:23:09 +0200 |
| commit | ff3be033d264830eb067329090a648cdd6c87d10 (patch) | |
| tree | 221c43fd0639a36ccc13d332b624e2dd748b7d58 /mm | |
| parent | 125791284ed8cb95101a787e54f8893bc2d9c52b (diff) | |
| download | linux-ff3be033d264830eb067329090a648cdd6c87d10.tar.gz linux-ff3be033d264830eb067329090a648cdd6c87d10.tar.bz2 linux-ff3be033d264830eb067329090a648cdd6c87d10.zip | |
mm/hwpoison: introduce folio_contain_hwpoisoned_page() helper
commit 5f5ee52d4f58605330b09851273d6e56aaadd29e upstream.
Patch series "mm/vmscan: don't try to reclaim hwpoison folio".
Fix a bug during memory reclaim if folio is hwpoisoned.
This patch (of 2):
Introduce helper folio_contain_hwpoisoned_page() to check if the entire
folio is hwpoisoned or it contains hwpoisoned pages.
Link: https://lkml.kernel.org/r/20250318083939.987651-1-tujinjiang@huawei.com
Link: https://lkml.kernel.org/r/20250318083939.987651-2-tujinjiang@huawei.com
Signed-off-by: Jinjiang Tu <tujinjiang@huawei.com>
Acked-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Nanyong Sun <sunnanyong@huawei.com>
Cc: Naoya Horiguchi <nao.horiguchi@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memory_hotplug.c | 3 | ||||
| -rw-r--r-- | mm/shmem.c | 3 |
2 files changed, 2 insertions, 4 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 16cf9e17077e..75401866fb76 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1828,8 +1828,7 @@ static void do_migrate_range(unsigned long start_pfn, unsigned long end_pfn) if (unlikely(page_folio(page) != folio)) goto put_folio; - if (folio_test_hwpoison(folio) || - (folio_test_large(folio) && folio_test_has_hwpoisoned(folio))) { + if (folio_contain_hwpoisoned_page(folio)) { if (WARN_ON(folio_test_lru(folio))) folio_isolate_lru(folio); if (folio_mapped(folio)) { diff --git a/mm/shmem.c b/mm/shmem.c index 1ede0800e846..1dd513d82332 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -3302,8 +3302,7 @@ shmem_write_begin(struct file *file, struct address_space *mapping, if (ret) return ret; - if (folio_test_hwpoison(folio) || - (folio_test_large(folio) && folio_test_has_hwpoisoned(folio))) { + if (folio_contain_hwpoisoned_page(folio)) { folio_unlock(folio); folio_put(folio); return -EIO; |