v4
2026-08-30
修复memory.peak重置损坏其他fd · v4
为 memcg memory.peak 读取加 peaks_lock，修复 reset 污染其他 fd 水印；维护者建议推迟到 -rc1 后重发
原始补丁链接
子 Patch（2）
1/2
memcg: acquire peaks_lock when reading memory.peak
From: Ridong Chen chenridong@xiaomi.com Sashiko reported that a reader can transiently observe a lower peak within a race window [1]. peak_show() returns max(local_watermark, ofp->value), but peak_
2/2
mm, memcg: fix memory.peak reset clobbering other fds' watermark
[mm, memcg: fix memory.peak reset clobbering other fds’ watermark] [patchwork series v4] submitter=Ridong Chen patches (2): [v4,RESEND,1/2] memcg: acquire peaks_lock when reading memory.peak [v4,R