Re: [PATCH] vfs: Add a trace point in the mark_inode_dirty function

Jeff Garzik
2009-11-11T07:56:34Z

On 11/11/2009 02:45 AM, Ingo Molnar wrote:
>
> * Jeff Garzik<jeff@garzik.org> wrote:
>
>> On 11/11/2009 01:34 AM, Arjan van de Ven wrote:
>>> Wu Fengguang<fengguang.wu@intel.com> wrote:
>>>> Maybe this is enough for POWERTOP, however for general use, the dirty
>>>> type(data/metadata) and inode number may be valuable to some users?
>>>
>>> what can a user do with an inode number????
>>
>> Inode numbers have always been visible to userspace... IIRC, tar(1)
>> uses the st_ino member of struct stat to detect hard links in certain
>> cases. ls(1) displays inode numbers with -i, find(1) looks for them
>> with -inum, ...
>
> Without an inode->vfs-name lookup/matching service it's of limited
> utility

Look in the quoted text for one such service... :)

Jeff