ZFS needs a lazytime property to set lazytime mount option · openzfs/zfs#9843

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Type: Featuregood first issue

説明

System information

Type	Version/Name
Distribution Name	Arch Linux
Linux Kernel	5.4.10
Architecture	x86_64
ZFS Version	0.8.2-1
SPL Version	0.8.2-1

ZFS supports lazytime, and datasets can be mounted with lazytime by running mount -o remount,lazytime tank/foo, but there is no property in the dataset to influence lazytime so that zfs mount tank/foo will set lazytime on.

コントリビューターガイド

技術スタック: c
領域: backendperformance
Issue 種別: feature
難度: 3
推定時間: 3-5 days
活動状況: stale
明確さ: clear
前提条件: ZFS property systemC programmingLinux mount options
初心者向け度: 30
調査方針: The issue requests adding a 'lazytime' property to ZFS datasets, similar to existing properties like 'atime'. Investigate how mount options are currently implemented as properties in ZFS, focusing on files such as 'module/zfs/zfs prop.c' and 'lib/libzfs/libzfs mount.c'. The existing support for 'lazytime' via manual remount indicates the kernel feature is available; the task is to expose it as a dataset property. Review the property definitions and mount code to understand how to add a new property that triggers the lazytime mount option during 'zfs mount'.