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btrfs-progs: add support for compat flags 

This patch updates btrfs-progs with the disk format changes for the
compatability flags.

Signed-off-by: Josef Bacik <jbacik@redhat.com>
master
Josef Bacik 2008-12-02 07:18:36 -05:00 committed by Chris Mason
parent f27688bde8
commit 76b8244a7a
1 changed files with 22 additions and 10 deletions
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32
ctree.h
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@ -289,6 +289,9 @@ struct btrfs_super_block {
__le32 stripesize;
__le32 sys_chunk_array_size;
__le64 chunk_root_generation;
__le64 compat_flags;
__le64 compat_ro_flags;
__le64 incompat_flags;
u8 root_level;
u8 chunk_root_level;
u8 log_root_level;
@ -297,6 +300,14 @@ struct btrfs_super_block {
u8 sys_chunk_array[BTRFS_SYSTEM_CHUNK_ARRAY_SIZE];
} __attribute__ ((__packed__));
/*
* Compat flags that we support. If any incompat flags are set other than the
* ones specified below then we will fail to mount
*/
#define BTRFS_FEATURE_COMPAT_SUPP 0x0
#define BTRFS_FEATURE_COMPAT_RO_SUPP 0x0
#define BTRFS_FEATURE_INCOMPAT_SUPP 0x0
/*
* A leaf is full of items. offset and size tell us where to find
* the item in the leaf (relative to the start of the data area)
@ -412,8 +423,7 @@ struct btrfs_inode_item {
__le32 gid;
__le32 mode;
__le64 rdev;
__le16 flags;
__le16 compat_flags;
__le64 flags;
struct btrfs_timespec atime;
struct btrfs_timespec ctime;
@ -437,7 +447,7 @@ struct btrfs_root_item {
__le64 byte_limit;
__le64 bytes_used;
__le64 last_snapshot;
__le32 flags;
__le64 flags;
__le32 refs;
struct btrfs_disk_key drop_progress;
u8 drop_level;
@ -915,9 +925,7 @@ BTRFS_SETGET_FUNCS(inode_uid, struct btrfs_inode_item, uid, 32);
BTRFS_SETGET_FUNCS(inode_gid, struct btrfs_inode_item, gid, 32);
BTRFS_SETGET_FUNCS(inode_mode, struct btrfs_inode_item, mode, 32);
BTRFS_SETGET_FUNCS(inode_rdev, struct btrfs_inode_item, rdev, 64);
BTRFS_SETGET_FUNCS(inode_flags, struct btrfs_inode_item, flags, 16);
BTRFS_SETGET_FUNCS(inode_compat_flags, struct btrfs_inode_item,
compat_flags, 16);
BTRFS_SETGET_FUNCS(inode_flags, struct btrfs_inode_item, flags, 64);
BTRFS_SETGET_STACK_FUNCS(stack_inode_generation,
struct btrfs_inode_item, generation, 64);
@ -938,9 +946,7 @@ BTRFS_SETGET_STACK_FUNCS(stack_inode_mode,
BTRFS_SETGET_STACK_FUNCS(stack_inode_rdev,
struct btrfs_inode_item, rdev, 64);
BTRFS_SETGET_STACK_FUNCS(stack_inode_flags,
struct btrfs_inode_item, flags, 16);
BTRFS_SETGET_STACK_FUNCS(stack_inode_compat_flags,
struct btrfs_inode_item, compat_flags, 16);
struct btrfs_inode_item, flags, 64);
static inline struct btrfs_timespec *
btrfs_inode_atime(struct btrfs_inode_item *inode_item)
@ -1298,7 +1304,7 @@ BTRFS_SETGET_STACK_FUNCS(root_bytenr, struct btrfs_root_item, bytenr, 64);
BTRFS_SETGET_STACK_FUNCS(root_level, struct btrfs_root_item, level, 8);
BTRFS_SETGET_STACK_FUNCS(root_dirid, struct btrfs_root_item, root_dirid, 64);
BTRFS_SETGET_STACK_FUNCS(root_refs, struct btrfs_root_item, refs, 32);
BTRFS_SETGET_STACK_FUNCS(root_flags, struct btrfs_root_item, flags, 32);
BTRFS_SETGET_STACK_FUNCS(root_flags, struct btrfs_root_item, flags, 64);
BTRFS_SETGET_STACK_FUNCS(root_used, struct btrfs_root_item, bytes_used, 64);
BTRFS_SETGET_STACK_FUNCS(root_limit, struct btrfs_root_item, byte_limit, 64);
BTRFS_SETGET_STACK_FUNCS(root_last_snapshot, struct btrfs_root_item,
@ -1341,6 +1347,12 @@ BTRFS_SETGET_STACK_FUNCS(super_root_dir, struct btrfs_super_block,
root_dir_objectid, 64);
BTRFS_SETGET_STACK_FUNCS(super_num_devices, struct btrfs_super_block,
num_devices, 64);
BTRFS_SETGET_STACK_FUNCS(super_compat_flags, struct btrfs_super_block,
compat_flags, 64);
BTRFS_SETGET_STACK_FUNCS(super_compat_ro_flags, struct btrfs_super_block,
compat_flags, 64);
BTRFS_SETGET_STACK_FUNCS(super_incompat_flags, struct btrfs_super_block,
incompat_flags, 64);
static inline unsigned long btrfs_leaf_data(struct extent_buffer *l)
{