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xfs: Improve CONFIG_XFS_RT Kconfig help

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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@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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Damien Le Moal 2025-10-13 12:08:29 +09:00 committed by Carlos Maiolino
parent 211ddde082
commit 914f377075
1 changed files with 9 additions and 0 deletions
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fs/xfs/Kconfig
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@ -119,6 +119,15 @@ 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