Re: [PATCH] fat: issue flush after the writeback of FAT

[OGAWA Hirofumi]

"Darrick J. Wong" <darrick.wong@xxxxxxxxxx> writes:

>> +	err = __generic_file_fsync(filp, start, end, datasync);
>> +	if (err)
>> +		return err;
>>  
>> -	res = generic_file_fsync(filp, start, end, datasync);
>>  	err = sync_mapping_buffers(MSDOS_SB(inode->i_sb)->fat_inode->i_mapping);
>
> Huh.  I would've thought that flushing the FAT would also be required
> at the end of a WB_SYNC_ALL (aka data integrity) writepages call?

In fatfs implement, FAT area is flushed by sync_mapping_buffers(fat_inode). 
(FAT buffer is dirtied only by using bh->b_assoc_map to fat_inode)

Thanks.
-- 
OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>