diff mbox series

[08/26] xfs: add fs-verity ro-compat flag

Message ID 171444680498.957659.14212501134707828714.stgit@frogsfrogsfrogs (mailing list archive)
State New, archived
Headers show
Series [01/26] xfs: use unsigned ints for non-negative quantities in xfs_attr_remote.c | expand

Commit Message

Darrick J. Wong April 30, 2024, 3:26 a.m. UTC 
From: Andrey Albershteyn <aalbersh@redhat.com>

To mark inodes with fs-verity enabled the new XFS_DIFLAG2_VERITY flag
will be added in further patch. This requires ro-compat flag to let
older kernels know that fs with fs-verity can not be modified.

Signed-off-by: Andrey Albershteyn <aalbersh@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
 fs/xfs/libxfs/xfs_format.h |    1 +
 fs/xfs/libxfs/xfs_sb.c     |    2 ++
 fs/xfs/xfs_mount.h         |    2 ++
 3 files changed, 5 insertions(+)
diff mbox series

Patch

diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h
index e9585ba12ded3..563f359f2f075 100644
--- a/fs/xfs/libxfs/xfs_format.h
+++ b/fs/xfs/libxfs/xfs_format.h
@@ -387,6 +387,7 @@  xfs_sb_has_compat_feature(
 #define XFS_SB_FEAT_RO_COMPAT_RMAPBT   (1 << 1)		/* reverse map btree */
 #define XFS_SB_FEAT_RO_COMPAT_REFLINK  (1 << 2)		/* reflinked files */
 #define XFS_SB_FEAT_RO_COMPAT_INOBTCNT (1 << 3)		/* inobt block counts */
+#define XFS_SB_FEAT_RO_COMPAT_VERITY   (1 << 4)		/* fs-verity */
 #define XFS_SB_FEAT_RO_COMPAT_ALL \
 		(XFS_SB_FEAT_RO_COMPAT_FINOBT | \
 		 XFS_SB_FEAT_RO_COMPAT_RMAPBT | \
diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c
index ad64647234f44..0bf5b4007afd8 100644
--- a/fs/xfs/libxfs/xfs_sb.c
+++ b/fs/xfs/libxfs/xfs_sb.c
@@ -167,6 +167,8 @@  xfs_sb_version_to_features(
 		features |= XFS_FEAT_REFLINK;
 	if (sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_INOBTCNT)
 		features |= XFS_FEAT_INOBTCNT;
+	if (sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_VERITY)
+		features |= XFS_FEAT_VERITY;
 	if (sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_FTYPE)
 		features |= XFS_FEAT_FTYPE;
 	if (sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_SPINODES)
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index e44eef998477d..78284e91244a8 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -311,6 +311,7 @@  typedef struct xfs_mount {
 #define XFS_FEAT_EXCHANGE_RANGE	(1ULL << 27)	/* exchange range */
 #define XFS_FEAT_METADIR	(1ULL << 28)	/* metadata directory tree */
 #define XFS_FEAT_RTGROUPS	(1ULL << 29)	/* realtime groups */
+#define XFS_FEAT_VERITY		(1ULL << 30)	/* fs-verity */
 
 /* Mount features */
 #define XFS_FEAT_NOATTR2	(1ULL << 48)	/* disable attr2 creation */
@@ -377,6 +378,7 @@  __XFS_HAS_FEAT(large_extent_counts, NREXT64)
 __XFS_HAS_FEAT(exchange_range, EXCHANGE_RANGE)
 __XFS_HAS_FEAT(metadir, METADIR)
 __XFS_HAS_FEAT(rtgroups, RTGROUPS)
+__XFS_HAS_FEAT(verity, VERITY)
 
 static inline bool xfs_has_rtrmapbt(struct xfs_mount *mp)
 {