diff mbox series

[07/29] xfs: add fs-verity ro-compat flag

Message ID 171175868677.1988170.14218032834693374890.stgit@frogsfrogsfrogs (mailing list archive)
State New, archived
Headers show
Series [01/29] xfs: use unsigned ints for non-negative quantities in xfs_attr_remote.c | expand

Commit Message

Darrick J. Wong March 30, 2024, 12:37 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 86a4c51493e7c..1532d37fd1029 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 747d28477b258..39b5083745d0e 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 f89632e0de006..08ec154eb0e98 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -313,6 +313,7 @@  typedef struct xfs_mount {
 #define XFS_FEAT_NREXT64	(1ULL << 26)	/* large extent counters */
 #define XFS_FEAT_METADIR	(1ULL << 27)	/* metadata directory tree */
 #define XFS_FEAT_RTGROUPS	(1ULL << 28)	/* realtime groups */
+#define XFS_FEAT_VERITY		(1ULL << 29)	/* fs-verity */
 
 /* Mount features */
 #define XFS_FEAT_ADD_LOG_FEAT	(1ULL << 47)	/* can add log incompat features */
@@ -379,6 +380,7 @@  __XFS_HAS_FEAT(needsrepair, NEEDSREPAIR)
 __XFS_HAS_FEAT(large_extent_counts, NREXT64)
 __XFS_HAS_FEAT(metadir, METADIR)
 __XFS_HAS_FEAT(rtgroups, RTGROUPS)
+__XFS_HAS_FEAT(verity, VERITY)
 
 bool xfs_can_add_incompat_log_features(struct xfs_mount *mp, bool want_audit);