fsck_y_enable: use -C

[Doug Barton]

Andriy Gapon wrote:
> on 01/06/2009 16:20 Andriy Gapon said the following:
>> What about the following patch?
>> I believe that the idea behind fsck_y_enable is to try to make unattended systems
>> with rw filesystems as recoverable as possible at the cost of potential damage to
>> the data. The new "-C" option should not interfere with this goal, but should
>> reduce recovery time, because currently fsck -y checks *all* filesystems from
>> fstab, even those that are ro or clean:
>>
>> -C      Check if the “clean” flag is set in the superblock and skip file
>>         system checks if file system was properly dismounted and marked
>>         clean.
>>
> 
> One potential issue that I've just thought of is that fsck_msdosfs doesn't seem to
> support this option (even in a dummy way), so it would be a problem for those who
> have msdos filesystems in fstab and also have fsck_y_enable.

I'm a bit concerned that we keep the current option as it is, but I
would support adding an fsck_y_enable_flags option to allow people to
pass -C if they are sure it will work in their environment.

Doug