Re: [Ocfs2-devel] [PATCH 1/4 V2] ocfs2: use retval instead of status for checking error

From: DaeSeok Youn
Date: Thu Mar 19 2015 - 22:23:10 EST


2015-03-19 15:24 GMT+09:00 Joseph Qi <joseph.qi@xxxxxxxxxx>:
> Looks good to me.
>
> On 2015/2/28 7:48, Daeseok Youn wrote:
>> The use of 'status' in __ocfs2_add_entry() can return wrong
>> status when some functions are failed.
>>
>> If ocfs2_journal_access_db() in __ocfs2_add_entry() is failed,
>> that status is saved to 'status' but return variable is 'retval'
>> which is saved 'success' status. In case of this, __ocfs2_add_entry()
>> is failed but can be returned as 'success'.
>>
>> So replace 'status' with 'retval'.
>>
>> Signed-off-by: Daeseok Youn <daeseok.youn@xxxxxxxxx>
>
> Reviewed-by: Joseph Qi <joseph.qi@xxxxxxxxxx>
Hi, Joseph.

Thanks for review this patch. I have actually tried to set this file
system on my machine with qemu but I didn't success, yet.

Regards,
Daeseok Youn.

>> ---
>> V2 : update changelog
>>
>> fs/ocfs2/dir.c | 12 ++++++------
>> 1 files changed, 6 insertions(+), 6 deletions(-)
>>
>> diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
>> index b08050b..1478a50 100644
>> --- a/fs/ocfs2/dir.c
>> +++ b/fs/ocfs2/dir.c
>> @@ -1617,7 +1617,7 @@ int __ocfs2_add_entry(handle_t *handle,
>> struct ocfs2_dir_entry *de, *de1;
>> struct ocfs2_dinode *di = (struct ocfs2_dinode *)parent_fe_bh->b_data;
>> struct super_block *sb = dir->i_sb;
>> - int retval, status;
>> + int retval;
>> unsigned int size = sb->s_blocksize;
>> struct buffer_head *insert_bh = lookup->dl_leaf_bh;
>> char *data_start = insert_bh->b_data;
>> @@ -1695,22 +1695,22 @@ int __ocfs2_add_entry(handle_t *handle,
>> }
>>
>> if (insert_bh == parent_fe_bh)
>> - status = ocfs2_journal_access_di(handle,
>> + retval = ocfs2_journal_access_di(handle,
>> INODE_CACHE(dir),
>> insert_bh,
>> OCFS2_JOURNAL_ACCESS_WRITE);
>> else {
>> - status = ocfs2_journal_access_db(handle,
>> + retval = ocfs2_journal_access_db(handle,
>> INODE_CACHE(dir),
>> insert_bh,
>> OCFS2_JOURNAL_ACCESS_WRITE);
>>
>> if (ocfs2_dir_indexed(dir)) {
>> - status = ocfs2_dx_dir_insert(dir,
>> + retval = ocfs2_dx_dir_insert(dir,
>> handle,
>> lookup);
>> - if (status) {
>> - mlog_errno(status);
>> + if (retval) {
>> + mlog_errno(retval);
>> goto bail;
>> }
>> }
>>
>
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/