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| author | Allison Henderson <allison.henderson@oracle.com> | 2024-04-22 19:47:57 +0300 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2024-04-23 17:47:01 +0300 |
| commit | 5f98ec1cb5c264e4815e21d632ee0b3d6e700e3d (patch) | |
| tree | 1bd30b4c557c818e89998712769ead3848b8764a /fs | |
| parent | 7dafb449b7922c1eec6fee3ed85b679d51f0f431 (diff) | |
| download | linux-5f98ec1cb5c264e4815e21d632ee0b3d6e700e3d.tar.xz | |
xfs: add a incompat feature bit for parent pointers
Create an incompat feature bit and a fs geometry flag so that we can
enable the feature in the ondisk superblock and advertise its existence
to userspace.
Signed-off-by: Mark Tinguely <mark.tinguely@oracle.com>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Allison Henderson <allison.henderson@oracle.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/xfs/libxfs/xfs_format.h | 1 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_fs.h | 1 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_sb.c | 4 | ||||
| -rw-r--r-- | fs/xfs/xfs_super.c | 4 |
4 files changed, 10 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h index f1818c54af6f..b457e457e1f7 100644 --- a/fs/xfs/libxfs/xfs_format.h +++ b/fs/xfs/libxfs/xfs_format.h @@ -374,6 +374,7 @@ xfs_sb_has_ro_compat_feature( #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_ALL \ (XFS_SB_FEAT_INCOMPAT_FTYPE | \ XFS_SB_FEAT_INCOMPAT_SPINODES | \ diff --git a/fs/xfs/libxfs/xfs_fs.h b/fs/xfs/libxfs/xfs_fs.h index ea654df0505f..dd13bfa500f2 100644 --- a/fs/xfs/libxfs/xfs_fs.h +++ b/fs/xfs/libxfs/xfs_fs.h @@ -240,6 +240,7 @@ typedef struct xfs_fsop_resblks { #define XFS_FSOP_GEOM_FLAGS_INOBTCNT (1 << 22) /* inobt btree counter */ #define XFS_FSOP_GEOM_FLAGS_NREXT64 (1 << 23) /* large extent counters */ #define XFS_FSOP_GEOM_FLAGS_EXCHANGE_RANGE (1 << 24) /* exchange range */ +#define XFS_FSOP_GEOM_FLAGS_PARENT (1 << 25) /* linux parent pointers */ /* * Minimum and maximum sizes need for growth checks. diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c index c350e259b685..09e4bf949bf8 100644 --- a/fs/xfs/libxfs/xfs_sb.c +++ b/fs/xfs/libxfs/xfs_sb.c @@ -178,6 +178,8 @@ xfs_sb_version_to_features( features |= XFS_FEAT_NREXT64; if (sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_EXCHRANGE) features |= XFS_FEAT_EXCHANGE_RANGE; + if (sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_PARENT) + features |= XFS_FEAT_PARENT; return features; } @@ -1254,6 +1256,8 @@ xfs_fs_geometry( geo->flags |= XFS_FSOP_GEOM_FLAGS_BIGTIME; if (xfs_has_inobtcounts(mp)) geo->flags |= XFS_FSOP_GEOM_FLAGS_INOBTCNT; + if (xfs_has_parent(mp)) + geo->flags |= XFS_FSOP_GEOM_FLAGS_PARENT; if (xfs_has_sector(mp)) { geo->flags |= XFS_FSOP_GEOM_FLAGS_SECTOR; geo->logsectsize = sbp->sb_logsectsize; diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index c303d7ff9597..27e9f749c4c7 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -1746,6 +1746,10 @@ xfs_fs_fill_super( xfs_warn(mp, "EXPERIMENTAL exchange-range feature enabled. Use at your own risk!"); + if (xfs_has_parent(mp)) + xfs_warn(mp, + "EXPERIMENTAL parent pointer feature enabled. Use at your own risk!"); + error = xfs_mountfs(mp); if (error) goto out_filestream_unmount; |