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| author | Yan Zheng <zheng.yan@oracle.com> | 2008-12-08 16:46:26 -0500 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-12-08 16:46:26 -0500 |
| commit | a512bbf855ff0af474257475f2e6da7acd854f52 (patch) | |
| tree | 1b2cfcf4152e09f32a6cb0bcbd798d5dab2f5490 /fs/btrfs/tree-log.c | |
| parent | d20f7043fa65659136c1a7c3c456eeeb5c6f431f (diff) | |
| download | linux-a512bbf855ff0af474257475f2e6da7acd854f52.tar.gz linux-a512bbf855ff0af474257475f2e6da7acd854f52.tar.bz2 linux-a512bbf855ff0af474257475f2e6da7acd854f52.zip | |
Btrfs: superblock duplication
This patch implements superblock duplication. Superblocks
are stored at offset 16K, 64M and 256G on every devices.
Spaces used by superblocks are preserved by the allocator,
which uses a reverse mapping function to find the logical
addresses that correspond to superblocks. Thank you,
Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Diffstat (limited to 'fs/btrfs/tree-log.c')
| -rw-r--r-- | fs/btrfs/tree-log.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 08469ec05850..d3f9c2c663c4 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -1996,7 +1996,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, btrfs_set_super_log_root_level(&root->fs_info->super_for_commit, btrfs_header_level(log->fs_info->log_root_tree->node)); - write_ctree_super(trans, log->fs_info->tree_root); + write_ctree_super(trans, log->fs_info->tree_root, 2); log->fs_info->tree_log_transid++; log->fs_info->tree_log_batch = 0; atomic_set(&log->fs_info->tree_log_commit, 0); @@ -2006,7 +2006,6 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, out: mutex_unlock(&log->fs_info->tree_log_mutex); return 0; - } /* * free all the extents used by the tree log. This should be called |