← 返回 解除VMA过滤对内存层级提升的阻断
v1 2026-09-05

解除VMA过滤对内存层级提升的阻断 · v1

NUMA 扫描新增 slow_only 模式，仅对慢内存层 folio 做 hint fault，并纳入被 PID/只读映射过滤的 VMA 以促进 tier 晋升。

原始补丁链接

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子 Patch（2）

1/2
sched/numa: do not let the per-VMA PID filter gate promotion
[sched/numa: do not let the per-VMA PID filter gate promotion] task_numa_work() will not scan a VMA that vma_is_accessed() rejects: if (!vma_pids_forced && !vma_is_accessed(mm, vma)) { vma_pi
2/2
sched/numa: scan read-only file mappings in tiering mode
[sched/numa: scan read-only file mappings in tiering mode] task_numa_work() refuses to scan any read-only file-backed mapping: if (vma->vm_file && (vma->vm_flags & (VM_READ|VM_WRITE)) == (VM_