Add dirsync support · openzfs/zfs#4366

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Type: Featuregood first issue

描述

Add support for the Linux dirsync mount option as described in the mount(8) man page.

       dirsync
              All  directory updates within the filesystem should be done syn‐
              chronously.  This affects the  following  system  calls:  creat,
              link, unlink, symlink, mkdir, rmdir, mknod and rename.

It would be nice to support this standard Linux mount option. The most logical place to to go about this would be to extend the existing filesystem sync property to include a directory setting. Of course the downside is that this would result in a compatibility issue with the other openZFS platforms. Other solutions are definitely possible and should be investigated.

贡献者指南

技术栈: c
领域: data
议题类型: feature
难度: 5
预计时间: over 1 week
活动状态: stale
清晰度: mostly clear
前置要求: Linux mount optionsZFS property systemC programming
新手友好度: 10
研究方向: Examine the existing 'sync' property in ZFS source code (likely in module/zfs/ and include/sys/fs/ directories). Understand how mount options are handled on Linux. Propose a design to extend the sync property with a 'directory' value, ensuring cross platform compatibility. Review comments on issue #4366 for additional context.