Improve the description of the XFS_RT configuration option to document that this option is required for zoned block devices. Signed-off-by: Damien Le Moal <dlemoal@xxxxxxxxxx> --- fs/xfs/Kconfig | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/fs/xfs/Kconfig b/fs/xfs/Kconfig index ae0ca6858496..68724dec3d19 100644 --- a/fs/xfs/Kconfig +++ b/fs/xfs/Kconfig @@ -118,6 +118,15 @@ config XFS_RT See the xfs man page in section 5 for additional information. + This option is mandatory to support zoned block devices. For these + devices, the realtime subvolume must be backed by a zoned block + device and a regular block device used as the main device (for + metadata). If the zoned block device is a host-managed SMR hard-disk + containing conventional zones at the beginning of its address space, + XFS will use the disk conventional zones as the main device and the + remaining sequential write required zones as the backing storage for + the realtime subvolume. + If unsure, say N. config XFS_DRAIN_INTENTS -- 2.50.1
