[Ocfs2-devel] [TRIVIAL] [PATCH] Remove unnecessary goto statements
Goldwyn Rodrigues
rgoldwyn at gmail.com
Thu Jul 22 12:34:53 PDT 2010
On Thu, Jul 22, 2010 at 10:22 AM, Wengang Wang <wen.gang.wang at oracle.com> wrote:
>> -bail:
>> return status;
>> }
>>
>> @@ -1050,7 +1048,6 @@ static inline int
>> ocfs2_block_group_set_bits(handle_t *handle,
>> group_bh);
>> if (status < 0) {
>> mlog_errno(status);
>> - goto bail;
>> }
>
> Why this?
> the following lines are modifying the buffer head.
>
> 1361 le16_add_cpu(&bg->bg_free_bits_count, -num_bits);
> 1362 while(num_bits--)
> 1363 ocfs2_set_bit(bit_off++, bitmap);
> 1364
> 1365 ocfs2_journal_dirty(handle, group_bh);
> 1366
> 1367 bail:
>
> For the next read of this group descriptor, we can't be sure it will be dirty
> read. So that it may get wrong contents and then the following write will write
> the wrong contents to disk.
Not sure which codebase you are referring to. According to the patch
and the code in the Joel's git repo from kernel.org, the statement
immediately following this was a bail tag.
--
Goldwyn
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