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Btrfs: Implement raid0 when multiple devices are present

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
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Chris Mason
2008-03-25 16:50:33 -04:00
parent 8a4b83cc8b
commit 593060d756
5 changed files with 173 additions and 66 deletions
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3
fs/btrfs/ctree.h
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@ -413,6 +413,7 @@ struct btrfs_csum_item {
#define BTRFS_BLOCK_GROUP_DATA (1 << 0)
#define BTRFS_BLOCK_GROUP_SYSTEM (1 << 1)
#define BTRFS_BLOCK_GROUP_METADATA (1 << 2)
#define BTRFS_BLOCK_GROUP_RAID0 (1 << 3)
struct btrfs_block_group_item {
@ -498,6 +499,8 @@ struct btrfs_fs_info {
u64 delalloc_bytes;
u64 last_alloc;
u64 last_data_alloc;
int extra_data_alloc_bits;
int extra_alloc_bits;
};
/*