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linux/mm/shrinker.c
wangxuewen 12ccf2bef3 mm/shrinker: simplify shrinker_memcg_alloc() using guard() 
Use guard(mutex) to automatically handle shrinker_mutex locking and
unlocking in shrinker_memcg_alloc().  This removes the explicit
mutex_unlock() call, the goto-based error path, and the redundant ret
variable, resulting in cleaner and more concise code.

Link: https://lore.kernel.org/20260513075214.2655710-1-18810879172@163.com
Signed-off-by: wangxuewen <wangxuewen@kylinos.cn>
Acked-by: Muchun Song <muchun.song@linux.dev>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Xuewen Wang <wangxuewen@kylinos.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-06-02 15:22:17 -07:00

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