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b40599930f
The MGLRU already supports reclaiming only from anonymous memory via the /sys/kernel/debug/lru_gen interface. Now, memory.reclaim also supports the swappiness=max parameter to enable reclaiming solely from anonymous memory. To unify the semantics of proactive reclaiming from anonymous folios, the max parameter is introduced. [hezhongkun.hzk@bytedance.com: use strcmp instead of strncmp, if swappiness is not set, use the default value] Link: https://lkml.kernel.org/r/20250507071057.3184240-1-hezhongkun.hzk@bytedance.com [akpm@linux-foundation.org: tweak coding style] Link: https://lkml.kernel.org/r/65181f7745d657d664d833c26d8a94cae40538b9.1745225696.git.hezhongkun.hzk@bytedance.com Signed-off-by: Zhongkun He <hezhongkun.hzk@bytedance.com> Acked-by: Muchun Song <muchun.song@linux.dev> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Yosry Ahmed <yosry.ahmed@linux.dev> Cc: Yu Zhao <yuzhao@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>