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authorJane Chu <jane.chu@oracle.com>2024-05-24 15:53:05 -0600
committerAndrew Morton <akpm@linux-foundation.org>2024-07-03 19:29:58 -0700
commit9b0ab153d76972a3bee4f363058ff06edf9255a3 (patch)
tree578bd5e74ed43d10a03a81999ee98cf6ee19e52f /mm
parentb8b9488d50b7150bd4830dfff487e8d4ef6589ba (diff)
mm/memory-failure: move hwpoison_filter() higher up
Move hwpoison_filter() higher up as there is no need to spend a lot cycles only to find out later that the page is supposed to be skipped from hwpoison handling. Link: https://lkml.kernel.org/r/20240524215306.2705454-5-jane.chu@oracle.com Signed-off-by: Jane Chu <jane.chu@oracle.com> Reviewed-by: Oscar Salvador <osalvador@suse.de> Acked-by: Miaohe Lin <linmiaohe@huawei.com> Cc: Naoya Horiguchi <nao.horiguchi@gmail.com> Cc: Oscar Salvador <oalvador@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/memory-failure.c20
1 files changed, 12 insertions, 8 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 7f29f1adba21..7e568838fb32 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -2300,6 +2300,18 @@ try_again:
}
folio = page_folio(p);
+
+ /* filter pages that are protected from hwpoison test by users */
+ folio_lock(folio);
+ if (hwpoison_filter(p)) {
+ ClearPageHWPoison(p);
+ folio_unlock(folio);
+ folio_put(folio);
+ res = -EOPNOTSUPP;
+ goto unlock_mutex;
+ }
+ folio_unlock(folio);
+
if (folio_test_large(folio)) {
/*
* The flag must be set after the refcount is bumped
@@ -2363,14 +2375,6 @@ try_again:
*/
page_flags = folio->flags;
- if (hwpoison_filter(p)) {
- ClearPageHWPoison(p);
- folio_unlock(folio);
- folio_put(folio);
- res = -EOPNOTSUPP;
- goto unlock_mutex;
- }
-
/*
* __munlock_folio() may clear a writeback folio's LRU flag without
* the folio lock. We need to wait for writeback completion for this