forked from Mirrors/btrfs-progs
btrfs-progs: Introduce function to initialize csum tree
Introduce new function, setup_temp_csum_tree(), to setup temporary csum tree for make_btrfs_v2(). Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>master
parent
b2da12034a
commit
1b8851ec40
25
utils.c
25
utils.c
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@ -678,6 +678,28 @@ out:
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return ret;
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return ret;
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}
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}
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static int setup_temp_csum_tree(int fd, struct btrfs_mkfs_config *cfg,
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u64 csum_bytenr)
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{
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struct extent_buffer *buf = NULL;
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int ret;
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buf = malloc(sizeof(*buf) + cfg->nodesize);
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if (!buf)
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return -ENOMEM;
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ret = setup_temp_extent_buffer(buf, cfg, csum_bytenr,
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BTRFS_CSUM_TREE_OBJECTID);
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if (ret < 0)
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goto out;
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/*
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* Temporary csum tree is completely empty.
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*/
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ret = write_temp_extent_buffer(fd, buf, csum_bytenr);
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out:
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free(buf);
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return ret;
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}
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/*
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/*
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* Improved version of make_btrfs().
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* Improved version of make_btrfs().
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*
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*
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@ -776,6 +798,9 @@ static int make_convert_btrfs(int fd, struct btrfs_mkfs_config *cfg,
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if (ret < 0)
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if (ret < 0)
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goto out;
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goto out;
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ret = setup_temp_fs_tree(fd, cfg, fs_bytenr);
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ret = setup_temp_fs_tree(fd, cfg, fs_bytenr);
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if (ret < 0)
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goto out;
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ret = setup_temp_csum_tree(fd, cfg, csum_bytenr);
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out:
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out:
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return ret;
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return ret;
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