diff options
| author | Dmitry Ilvokhin <d@ilvokhin.com> | 2026-04-29 12:02:11 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-05-28 21:05:05 -0700 |
| commit | 5e22451096cd65ded8a7550fb324c8e6dc3b2b22 (patch) | |
| tree | f8a8b7b0ed8eea412fd5bf7ce4cd2ac7259c9678 | |
| parent | ee8a0c15c26f6cf67e4e5207cb18e6262d7e886e (diff) | |
| download | linux-next-history-5e22451096cd65ded8a7550fb324c8e6dc3b2b22.tar.gz | |
mm: use zone lock guard in put_page_back_buddy()
Use spinlock_irqsave zone lock guard in put_page_back_buddy() to replace
the explicit lock/unlock pattern with automatic scope-based cleanup.
Link: https://lore.kernel.org/b0fceedca37139da36aa626ac72eb9840b641021.1777462630.git.d@ilvokhin.com
Signed-off-by: Dmitry Ilvokhin <d@ilvokhin.com>
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | mm/page_alloc.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index f5ad74490c5d2..49711916703ea 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -7675,23 +7675,19 @@ bool take_page_off_buddy(struct page *page) bool put_page_back_buddy(struct page *page) { struct zone *zone = page_zone(page); - unsigned long flags; - bool ret = false; - spin_lock_irqsave(&zone->lock, flags); + guard(spinlock_irqsave)(&zone->lock); if (put_page_testzero(page)) { unsigned long pfn = page_to_pfn(page); int migratetype = get_pfnblock_migratetype(page, pfn); ClearPageHWPoisonTakenOff(page); __free_one_page(page, pfn, zone, 0, migratetype, FPI_NONE); - if (TestClearPageHWPoison(page)) { - ret = true; - } + if (TestClearPageHWPoison(page)) + return true; } - spin_unlock_irqrestore(&zone->lock, flags); - return ret; + return false; } #endif |