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| author | Chris Mason <chris.mason@oracle.com> | 2011-01-16 11:24:45 -0500 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2011-01-16 11:24:45 -0500 |
| commit | 26c79f6ba0ccdc4bbc8ef8721406d37e9178e30b (patch) | |
| tree | c5bcbf8f605afdae1a89ea2617f29052ac8c6f18 /fs/btrfs/ctree.h | |
| parent | 65e5341b9a0c39767ae1fecc727d70eda0dd6d83 (diff) | |
| parent | 0caa102da82799efaba88e234484786a9591c797 (diff) | |
Merge branch 'readonly-snapshots' of git://repo.or.cz/linux-btrfs-devel into btrfs-38
Diffstat (limited to 'fs/btrfs/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index af52f6d7a4d..4403e5643d4 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -597,6 +597,8 @@ struct btrfs_dir_item { u8 type; } __attribute__ ((__packed__)); +#define BTRFS_ROOT_SUBVOL_RDONLY (1ULL << 0) + struct btrfs_root_item { struct btrfs_inode_item inode; __le64 generation; @@ -1893,6 +1895,11 @@ BTRFS_SETGET_STACK_FUNCS(root_limit, struct btrfs_root_item, byte_limit, 64); BTRFS_SETGET_STACK_FUNCS(root_last_snapshot, struct btrfs_root_item, last_snapshot, 64); +static inline bool btrfs_root_readonly(struct btrfs_root *root) +{ + return root->root_item.flags & BTRFS_ROOT_SUBVOL_RDONLY; +} + /* struct btrfs_super_block */ BTRFS_SETGET_STACK_FUNCS(super_bytenr, struct btrfs_super_block, bytenr, 64); |