[PATCH 5/5] btrfs: add sysfs feature for fsverity

[Boris Burkov]

Now that we support fsverity, enable a feature flag for it in sysfs.

Signed-off-by: Boris Burkov <bo...@bur.io>
---
 fs/btrfs/sysfs.c           | 6 ++++++
 include/uapi/linux/btrfs.h | 1 +
 2 files changed, 7 insertions(+)

diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index 19b9fffa2c9c..40e780724c03 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -267,6 +267,9 @@ BTRFS_FEAT_ATTR_INCOMPAT(raid1c34, RAID1C34);
 #ifdef CONFIG_BTRFS_DEBUG
 BTRFS_FEAT_ATTR_INCOMPAT(zoned, ZONED);
 #endif
+#ifdef CONFIG_FS_VERITY
+BTRFS_FEAT_ATTR_COMPAT(verity, VERITY);
+#endif
 
 static struct attribute *btrfs_supported_feature_attrs[] = {
        BTRFS_FEAT_ATTR_PTR(mixed_backref),
@@ -284,6 +287,9 @@ static struct attribute *btrfs_supported_feature_attrs[] = {
        BTRFS_FEAT_ATTR_PTR(raid1c34),
 #ifdef CONFIG_BTRFS_DEBUG
        BTRFS_FEAT_ATTR_PTR(zoned),
+#endif
+#ifdef CONFIG_FS_VERITY
+       BTRFS_FEAT_ATTR_PTR(verity),
 #endif
        NULL
 };
diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h
index 5df73001aad4..5e0eaf37b60c 100644
--- a/include/uapi/linux/btrfs.h
+++ b/include/uapi/linux/btrfs.h
@@ -309,6 +309,7 @@ struct btrfs_ioctl_fs_info_args {
 #define BTRFS_FEATURE_INCOMPAT_RAID1C34                (1ULL << 11)
 #define BTRFS_FEATURE_INCOMPAT_ZONED           (1ULL << 12)
 
+#define BTRFS_FEATURE_COMPAT_VERITY            (1ULL << 13)
 struct btrfs_ioctl_feature_flags {
        __u64 compat_flags;
        __u64 compat_ro_flags;
-- 
2.24.1