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-rw-r--r--fs/btrfs/ctree.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 99defab7e1f6..4e58b0532b36 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -335,6 +335,23 @@ struct btrfs_root {
#endif
};
+static inline bool btrfs_root_readonly(const struct btrfs_root *root)
+{
+ /* Byte-swap the constant at compile time, root_item::flags is LE */
+ return (root->root_item.flags & cpu_to_le64(BTRFS_ROOT_SUBVOL_RDONLY)) != 0;
+}
+
+static inline bool btrfs_root_dead(const struct btrfs_root *root)
+{
+ /* Byte-swap the constant at compile time, root_item::flags is LE */
+ return (root->root_item.flags & cpu_to_le64(BTRFS_ROOT_SUBVOL_DEAD)) != 0;
+}
+
+static inline u64 btrfs_root_id(const struct btrfs_root *root)
+{
+ return root->root_key.objectid;
+}
+
/*
* Structure that conveys information about an extent that is going to replace
* all the extents in a file range.