On 2016-09-14 22:28, Richard Weinberger wrote:
> To support overlayfs in a proper way a filesystem has to offer support
> for DT_CHR, RENAME_WHITEOUT and RENAME_EXCHANGE.
> While UBIFS supports DT_CHR it lacks support for RENAME_WHITEOUT and
> RENAME_EXCHANGE. This patch series implement the missing bits.
> RENAME_WHITEOUT itself depends on O_TMPFILE, therefore O_TMPFILE is now
> also supported.
> Changes since v1:
> - Build fix for CONFIG_LOCKDEP=y
> - Fix for wrong dentry name length calculation in ubifs_jnl_xrename()
> - Fix for wrong directory link count after RENAME_EXCHANGE
> Richard Weinberger (4):
> ubifs: Implement O_TMPFILE
> ubifs: Implement RENAME_WHITEOUT
> ubifs: Implement RENAME_EXCHANGE
> ubifs: Use move variable in ubifs_rename()
Tested-by: Felix Fietkau <n...@nbd.name>