On Mon, Feb 24, 2025 at 05:28:30PM +0100, Daniel Kiper wrote:
> On Mon, Feb 03, 2025 at 03:41:22PM -0800, Darrick J. Wong via Grub-devel
> wrote:
> > From: Darrick J. Wong <djw...@kernel.org>
> >
> > The Linux port of XFS added a few new features in 2024. The existing
> > grub driver doesn't attempt to read or write any of the new metadata, so
> > all three can be added to the incompat allowlist.
> >
> > Signed-off-by: "Darrick J. Wong" <djw...@kernel.org>
>
> Reviewed-by: Daniel Kiper <daniel.ki...@oracle.com>
>
> ... but one nit below...
>
> > ---
> > grub-core/fs/xfs.c | 17 ++++++++++++++++-
> > 1 file changed, 16 insertions(+), 1 deletion(-)
> >
> > diff --git a/grub-core/fs/xfs.c b/grub-core/fs/xfs.c
> > index 8e02ab4a301424..5d809a770a1576 100644
> > --- a/grub-core/fs/xfs.c
> > +++ b/grub-core/fs/xfs.c
> > @@ -89,6 +89,9 @@ GRUB_MOD_LICENSE ("GPLv3+");
> > #define XFS_SB_FEAT_INCOMPAT_BIGTIME (1 << 3) /* large
> > timestamps */
> > #define XFS_SB_FEAT_INCOMPAT_NEEDSREPAIR (1 << 4) /* needs
> > xfs_repair */
> > #define XFS_SB_FEAT_INCOMPAT_NREXT64 (1 << 5) /* large extent
> > counters */
> > +#define XFS_SB_FEAT_INCOMPAT_EXCHRANGE (1 << 6) /* exchangerange
> > supported */
> > +#define XFS_SB_FEAT_INCOMPAT_PARENT (1 << 7) /* parent pointers
> > */
> > +#define XFS_SB_FEAT_INCOMPAT_METADIR (1 << 8) /* metadata dir
> > tree */
> >
> > /*
> > * Directory entries with ftype are explicitly handled by GRUB code.
> > @@ -98,6 +101,15 @@ GRUB_MOD_LICENSE ("GPLv3+");
> > *
> > * We do not currently verify metadata UUID, so it is safe to read
> > filesystems
> > * with the XFS_SB_FEAT_INCOMPAT_META_UUID feature.
> > + *
> > + * We do not currently replay the log, so it is safe to read filesystems
> > + * with the XFS_SB_FEAT_INCOMPAT_EXCHRANGE feature.
> > + *
> > + * We do not currently read directory parent pointers, so it is safe to
> > read
> > + * filesystems with the XFS_SB_FEAT_INCOMPAT_EXCHRANGE feature.
>
> s/XFS_SB_FEAT_INCOMPAT_EXCHRANGE/XFS_SB_FEAT_INCOMPAT_PARENT/?
>
> I can fix it for you before push...
Oops, yes, that's correct. Apologies for the copypasta. :/
Thanks for reviewing!
--D
> > + *
> > + * We do not currently look at realtime or quota metadata, so it is safe to
> > + * read filesystems with the XFS_SB_FEAT_INCOMPAT_METADIR feature.
> > */
> > #define XFS_SB_FEAT_INCOMPAT_SUPPORTED \
> > (XFS_SB_FEAT_INCOMPAT_FTYPE | \
> > @@ -105,7 +117,10 @@ GRUB_MOD_LICENSE ("GPLv3+");
> > XFS_SB_FEAT_INCOMPAT_META_UUID | \
> > XFS_SB_FEAT_INCOMPAT_BIGTIME | \
> > XFS_SB_FEAT_INCOMPAT_NEEDSREPAIR | \
> > - XFS_SB_FEAT_INCOMPAT_NREXT64)
> > + XFS_SB_FEAT_INCOMPAT_NREXT64 | \
> > + XFS_SB_FEAT_INCOMPAT_EXCHRANGE | \
> > + XFS_SB_FEAT_INCOMPAT_PARENT | \
> > + XFS_SB_FEAT_INCOMPAT_METADIR)
>
> Daniel
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