mmc: block: bonnie++ runs with errors on arc/hsdk board

[Evgeniy Didin]

Hi Adrian,
> > 
> > Was the performance affected? i.e. the results from bonnie++
> 
> I have run bonnie++ several times before and after mentioned commit. Here is output:
> --------------------------------------------------<8-------------------------------------------------------------------------
> Before commit:
> ARCLinux,512M,6442,50,7211,0,5333,0,12954,99,345638,100,+++++,+++,16,22322,100,+++++,+++,32735,99,22921,100,+++++,+++,32211,100
> ARCLinux,512M,6611,51,7248,0,5162,0,12951,99,344763,99,+++++,+++,16,22649,99,+++++,+++,32723,99,22572,100,+++++,+++,31697,100
> ARCLinux,512M,6597,52,7307,0,5368,0,12934,99,343987,99,+++++,+++,16,22775,100,+++++,+++,32713,99,22832,100,+++++,+++,31899,99
> After commit:
> ARCLinux,512M,4453,36,6474,1,5852,0,12940,99,344329,100,+++++,+++,16,22168,98,+++++,+++,32760,99,22755,100,+++++,+++,32205,100
> ARCLinux,512M,5159,42,6944,1,5658,0,12945,99,344290,100,+++++,+++,16,22295,100,+++++,+++,32715,99,22888,99,+++++,+++,32007,99
> ARCLinux,512M,5170,42,6840,2,5315,0,12946,99,343889,100,+++++,+++,16,22445,100,+++++,+++,32681,99,22967,100,+++++,+++,32117,99
> --------------------------------------------------<8------------------------------------------------------------------------
>               ^^^^ 
> If i understand correctly, in third column is shown "sequential output" per character speed (K/sec), which decreased.
> 
> > What mount options did you use?
> 
> I didn't use any options. Simply:
> # mount /dev/mmcblk0p1 /mnt

Note that the file system on SDcard was ext4. 

Best regards,
Evgeniy Didin