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btrfs: cleanup, rename a few variables in btrfs_read_sys_array
There's a pointer to buffer, integer offset and offset passed as pointer, try to find matching names for them. Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Chris Mason <clm@fb.com>
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@ -6252,13 +6252,13 @@ int btrfs_read_sys_array(struct btrfs_root *root)
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struct extent_buffer *sb;
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struct btrfs_disk_key *disk_key;
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struct btrfs_chunk *chunk;
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u8 *ptr;
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unsigned long sb_ptr;
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u8 *array_ptr;
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unsigned long sb_array_offset;
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int ret = 0;
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u32 num_stripes;
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u32 array_size;
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u32 len = 0;
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u32 cur;
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u32 cur_offset;
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struct btrfs_key key;
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ASSERT(BTRFS_SUPER_INFO_SIZE <= root->nodesize);
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@ -6290,20 +6290,21 @@ int btrfs_read_sys_array(struct btrfs_root *root)
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write_extent_buffer(sb, super_copy, 0, BTRFS_SUPER_INFO_SIZE);
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array_size = btrfs_super_sys_array_size(super_copy);
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ptr = super_copy->sys_chunk_array;
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sb_ptr = offsetof(struct btrfs_super_block, sys_chunk_array);
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cur = 0;
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array_ptr = super_copy->sys_chunk_array;
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sb_array_offset = offsetof(struct btrfs_super_block, sys_chunk_array);
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cur_offset = 0;
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while (cur < array_size) {
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disk_key = (struct btrfs_disk_key *)ptr;
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while (cur_offset < array_size) {
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disk_key = (struct btrfs_disk_key *)array_ptr;
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btrfs_disk_key_to_cpu(&key, disk_key);
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len = sizeof(*disk_key); ptr += len;
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sb_ptr += len;
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cur += len;
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len = sizeof(*disk_key);
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array_ptr += len;
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sb_array_offset += len;
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cur_offset += len;
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if (key.type == BTRFS_CHUNK_ITEM_KEY) {
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chunk = (struct btrfs_chunk *)sb_ptr;
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chunk = (struct btrfs_chunk *)sb_array_offset;
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ret = read_one_chunk(root, &key, sb, chunk);
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if (ret)
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break;
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@ -6313,9 +6314,9 @@ int btrfs_read_sys_array(struct btrfs_root *root)
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ret = -EIO;
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break;
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}
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ptr += len;
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sb_ptr += len;
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cur += len;
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array_ptr += len;
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sb_array_offset += len;
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cur_offset += len;
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}
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free_extent_buffer(sb);
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return ret;
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