feat(filesystem): 新增preadv2系统调用支持#1451
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fslongjin merged 2 commits intoDragonOS-Community:masterfrom Dec 9, 2025
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- 实现preadv2系统调用，支持带偏移量和标志位的向量化读取
- 处理offset为-1时使用当前文件偏移量，其他情况复用preadv逻辑
- 添加RWF标志位验证，遵循Linux兼容性要求
- 实现preadv2系统调用，支持带偏移量和标志位的向量化读取 - 处理offset为-1时使用当前文件偏移量，其他情况复用preadv逻辑 - 添加RWF标志位验证，遵循Linux兼容性要求 Signed-off-by: longjin <longjin@DragonOS.org>
…related functions - Simplified the do_sys_open and do_open functions by removing the follow_symlink parameter. - Updated all calls to these functions to reflect the change, ensuring that symlink following behavior is determined by the O_NOFOLLOW flag in the file flags. - Enhanced code readability and maintainability by streamlining function signatures. Signed-off-by: longjin <longjin@DragonOS.org>
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