From: Darrick J. Wong <djwong@xxxxxxxxxx> Update the metadump v2 format documentation to add realtime device dumps. Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx> Reviewed-by: Christoph Hellwig <hch@xxxxxx> --- design/XFS_Filesystem_Structure/metadump.asciidoc | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/design/XFS_Filesystem_Structure/metadump.asciidoc b/design/XFS_Filesystem_Structure/metadump.asciidoc index a32d6423ea6e75..226622c0d2f20e 100644 --- a/design/XFS_Filesystem_Structure/metadump.asciidoc +++ b/design/XFS_Filesystem_Structure/metadump.asciidoc @@ -119,7 +119,16 @@ Dump contains external log contents. |===== *xmh_incompat_flags*:: -Must be zero. +A combination of the following flags: + +.Metadump v2 incompat flags +[options="header"] +|===== +| Flag | Description +| +XFS_MD2_INCOMPAT_RTDEVICE+ | +Dump contains realtime device contents. + +|===== *xmh_reserved*:: Must be zero. @@ -143,6 +152,7 @@ Bits 55-56 determine the device from which the metadata dump data was extracted. | Value | Description | 0 | Data device | 1 | External log +| 2 | Realtime device |===== The lower 54 bits determine the device address from which the dump data was
