Re:Re: [PATCH 1/2] f2fs: add sysfs nodes to get discard information

[李扬韬]

>> I've added new sysfs nodes to show discard stat since mount, which
>> will help us analyze whether the performance problem is related to
>> discard.
>> 
>> issued_discard  - Shows the number of issued discard
>> queued_discard  - Shows the number of cached discard cmd count
>> discard_cmd_cnt - Shows the number of cached discard cmd count
>> undiscard_blks  - Shows the number of undiscard blocks
>
>We have exported them in debugfs, can you use that?
>
>Thanks,

But now Android is forbidden to open debugfs, and in fact we have not
opened this configuration for a long time.

Thx,
Yangtao