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btrfs_create, btrfs_write_super, btrfs_sync_fs

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2007-03-23 10:01:08 -04:00 • committed by David Woodhouse
parent 79154b1b5b
commit d571976292
10 changed files with 201 additions and 47 deletions
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23
fs/btrfs/disk-io.c
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@ -145,19 +145,20 @@ struct btrfs_root *open_ctree(struct super_block *sb,
int write_ctree_super(struct btrfs_trans_handle *trans, struct btrfs_root
*root)
{
return 0;
#if 0
int ret;
btrfs_set_super_root(s, root->fs_info->tree_root->node->b_blocknr);
ret = pwrite(root->fs_info->fp, s, sizeof(*s),
BTRFS_SUPER_INFO_OFFSET);
if (ret != sizeof(*s)) {
fprintf(stderr, "failed to write new super block err %d\n", ret);
return ret;
struct buffer_head *bh = root->fs_info->sb_buffer;
btrfs_set_super_root(root->fs_info->disk_super,
root->fs_info->tree_root->node->b_blocknr);
lock_buffer(bh);
clear_buffer_dirty(bh);
bh->b_end_io = end_buffer_write_sync;
get_bh(bh);
submit_bh(WRITE, bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh)) {
WARN_ON(1);
return -EIO;
}
return 0;
#endif
}
int close_ctree(struct btrfs_root *root)