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v2 2026-10-01

DONTUNMAP 记账问题修复 · v2

修复 MREMAP_DONTUNMAP 自合并和拆分 VMA 的 locked_vm 泄漏，该系列在 linux-next 触发 proc_maps_race 自测失败。

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子 Patch（2）

1/2
mm/mremap: fix locked_vm leak from MREMAP_DONTUNMAP self-merge
The MREMAP_DONTUNMAP feature is highly unusual in that it permits mremap() operations that keep the original VMA in place. Historically this has led to a lot of bugs where non-obvious interactions oc
2/2
mm/mremap: fix locked_vm leak by splitting VMA for MREMAP_DONTUNMAP
The MREMAP_DONTUNMAP feature is highly unusual in that it permits mremap() operations that keep the original VMA in place. Historically this has led to a lot of bugs where non-obvious interactions oc
← v1