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| author | Chris Mason | 2007-12-14 21:30:32 +0100 |
|---|---|---|
| committer | Chris Mason | 2008-09-25 17:03:58 +0200 |
| commit | b6cda9bcb4df7544c67fc3548a53bc1607d59f46 (patch) | |
| tree | 2bae71b1c9eca52bf1e37ca1b3bdd4525e0a43fd /fs/btrfs/ctree.h | |
| parent | Fixes for loopback files in btrfs (diff) | |
| download | kernel-qcow2-linux-b6cda9bcb4df7544c67fc3548a53bc1607d59f46.tar.gz kernel-qcow2-linux-b6cda9bcb4df7544c67fc3548a53bc1607d59f46.tar.xz kernel-qcow2-linux-b6cda9bcb4df7544c67fc3548a53bc1607d59f46.zip | |
Btrfs: Add mount -o nodatasum to turn of file data checksumming
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 052555ced44d..5e255cabfd10 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -321,6 +321,7 @@ struct btrfs_fs_info { u64 generation; u64 last_trans_committed; + unsigned long mount_opt; struct btrfs_transaction *running_transaction; struct btrfs_super_block super_copy; struct extent_buffer *sb_buffer; @@ -429,6 +430,13 @@ struct btrfs_root { */ #define BTRFS_STRING_ITEM_KEY 253 +#define BTRFS_MOUNT_NODATASUM 0x1 + +#define btrfs_clear_opt(o, opt) ((o) &= ~BTRFS_MOUNT_##opt) +#define btrfs_set_opt(o, opt) ((o) |= BTRFS_MOUNT_##opt) +#define btrfs_test_opt(root, opt) ((root)->fs_info->mount_opt & \ + BTRFS_MOUNT_##opt) + /* some macros to generate set/get funcs for the struct fields. This * assumes there is a lefoo_to_cpu for every type, so lets make a simple * one for u8: @@ -906,12 +914,6 @@ static inline u32 btrfs_level_size(struct btrfs_root *root, int level) { ((unsigned long)(btrfs_leaf_data(leaf) + \ btrfs_item_offset_nr(leaf, slot))) -/* mount option defines and helpers */ -#define BTRFS_MOUNT_SUBVOL 0x000001 -#define btrfs_clear_opt(o, opt) o &= ~BTRFS_MOUNT_##opt -#define btrfs_set_opt(o, opt) o |= BTRFS_MOUNT_##opt -#define btrfs_test_opt(sb, opt) (BTRFS_SB(sb)->s_mount_opt & \ - BTRFS_MOUNT_##opt) /* extent-tree.c */ int btrfs_extent_post_op(struct btrfs_trans_handle *trans, struct btrfs_root *root); |