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refactor(mm): 引入原子页面标志和锁优化 #1680

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refactor(mm): 引入原子页面标志和锁优化 #1680

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@fslongjin fslongjin commented Jan 17, 2026

  • 新增AtomicPageFlags结构体，支持无锁页面状态检查
  • 为Page结构添加原子标志操作（test_flags、set_flags、clear_flags等）
  • 实现页面锁原语（trylock、lock、unlock）和等待队列机制
  • 重构页面缓存、tmpfs、共享内存等模块使用原子标志操作
  • 优化脏页检查、页面同步等操作，减少锁竞争

@fslongjin
refactor(mm): 引入原子页面标志和锁优化
e57e81e 
- 新增AtomicPageFlags结构体，支持无锁页面状态检查
- 为Page结构添加原子标志操作（test_flags、set_flags、clear_flags等）
- 实现页面锁原语（trylock、lock、unlock）和等待队列机制
- 重构页面缓存、tmpfs、共享内存等模块使用原子标志操作
- 优化脏页检查、页面同步等操作，减少锁竞争

Signed-off-by: longjin <longjin@DragonOS.org>
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fslongjin commented Jan 17, 2026

@codex review

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