| Message ID | 20231108083228.1278837-2-chandan.babu@oracle.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | xfsdocs: Describe Metadump V2's ondisk format structure | expand |
On Wed, Nov 08, 2023 at 02:02:27PM +0530, Chandan Babu R wrote: > mb_reserved has been replaced with mb_info in upstream xfsprogs. This commit > adds description for valid bits of mb_info field. > > Signed-off-by: Chandan Babu R <chandan.babu@oracle.com> Looks good, Reviewed-by: Darrick J. Wong <djwong@kernel.org> --D > --- > .../metadump.asciidoc | 23 ++++++++++++++++--- > 1 file changed, 20 insertions(+), 3 deletions(-) > > diff --git a/design/XFS_Filesystem_Structure/metadump.asciidoc b/design/XFS_Filesystem_Structure/metadump.asciidoc > index 2bddb77..2f35b7e 100644 > --- a/design/XFS_Filesystem_Structure/metadump.asciidoc > +++ b/design/XFS_Filesystem_Structure/metadump.asciidoc > @@ -21,7 +21,7 @@ struct xfs_metablock { > __be32 mb_magic; > __be16 mb_count; > uint8_t mb_blocklog; > - uint8_t mb_reserved; > + uint8_t mb_info; > __be64 mb_daddr[]; > }; > ---- > @@ -37,8 +37,25 @@ Number of blocks indexed by this record. This value must not exceed +(1 > The log size of a metadump block. This size of a metadump block 512 > bytes, so this value should be 9. > > -*mb_reserved*:: > -Reserved. Should be zero. > +*mb_info*:: > +Flags describing a metadata dump. > + > +[options="header"] > +|===== > +| Flag | Description > +| +XFS_METADUMP_INFO_FLAGS+ | > +The remaining bits in this field are valid. > + > +| +XFS_METADUMP_OBFUSCATED+ | > +File names and extended attributes have been obfuscated. > + > +| +XFS_METADUMP_FULLBLOCKS+ | > +Metadata blocks have been copied in full i.e. stale bytes have not > +been zeroed out. > + > +| +XFS_METADUMP_DIRTYLOG+ | > +Log was dirty. > +|===== > > *mb_daddr*:: > An array of disk addresses. Each of the +mb_count+ blocks (of size +(1 > -- > 2.39.1 >
diff --git a/design/XFS_Filesystem_Structure/metadump.asciidoc b/design/XFS_Filesystem_Structure/metadump.asciidoc index 2bddb77..2f35b7e 100644 --- a/design/XFS_Filesystem_Structure/metadump.asciidoc +++ b/design/XFS_Filesystem_Structure/metadump.asciidoc @@ -21,7 +21,7 @@ struct xfs_metablock { __be32 mb_magic; __be16 mb_count; uint8_t mb_blocklog; - uint8_t mb_reserved; + uint8_t mb_info; __be64 mb_daddr[]; }; ---- @@ -37,8 +37,25 @@ Number of blocks indexed by this record. This value must not exceed +(1 The log size of a metadump block. This size of a metadump block 512 bytes, so this value should be 9. -*mb_reserved*:: -Reserved. Should be zero. +*mb_info*:: +Flags describing a metadata dump. + +[options="header"] +|===== +| Flag | Description +| +XFS_METADUMP_INFO_FLAGS+ | +The remaining bits in this field are valid. + +| +XFS_METADUMP_OBFUSCATED+ | +File names and extended attributes have been obfuscated. + +| +XFS_METADUMP_FULLBLOCKS+ | +Metadata blocks have been copied in full i.e. stale bytes have not +been zeroed out. + +| +XFS_METADUMP_DIRTYLOG+ | +Log was dirty. +|===== *mb_daddr*:: An array of disk addresses. Each of the +mb_count+ blocks (of size +(1
mb_reserved has been replaced with mb_info in upstream xfsprogs. This commit adds description for valid bits of mb_info field. Signed-off-by: Chandan Babu R <chandan.babu@oracle.com> --- .../metadump.asciidoc | 23 ++++++++++++++++--- 1 file changed, 20 insertions(+), 3 deletions(-)