Component Type: kbuild config

Description: Overlayfs: turn on metadata only copy up feature by default

More info: If this config option is enabled then overlay filesystems will copy up only metadata where appropriate and data copy up will happen when a file is opened for WRITE operation. It is still possible to turn off this feature globally with the "metacopy=off" module option or on a filesystem instance basis with the "metacopy=off" mount option. Note, that this feature is not backward compatible. That is, mounting an overlay which has metacopy only inodes on a kernel that doesn't support this feature will have unexpected results. If unsure, say N.

Build project: Kconfig (Linux kconfig) (Path: fs\overlayfs\Kconfig )

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