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Date:	Wed, 11 Nov 2009 02:56:29 -0500
From:	Jeff Garzik <>
To:	Ingo Molnar <>
CC:	Arjan van de Ven <>,
	Wu Fengguang <>,,,
	Christoph Hellwig <>,
	Al Viro <>,
	Frederic Weisbecker <>,
Subject: Re: [PATCH] vfs: Add a trace point in the mark_inode_dirty function

On 11/11/2009 02:45 AM, Ingo Molnar wrote:
> * Jeff Garzik<>  wrote:
>> On 11/11/2009 01:34 AM, Arjan van de Ven wrote:
>>> Wu Fengguang<>   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...  :)


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