linux-kernel - Re: IMA and fs

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Date:	Fri, 17 Apr 2009 22:57:46 +0900
From:	hooanon05@...oo.co.jp
To:	Mimi Zohar <zohar@...ibm.com>
Cc:	linux-kernel@...r.kernel.org,
	david safford <safford@...son.ibm.com>
Subject: Re: IMA and fs 


Mimi Zohar:
> > xfs_iget() holds spinlock before xfs_iget_cache_hit(), and
> > ima_inode_alloc() cannot use GFP_KERNEL.
> 
> This looks similar to the xfs - IMA problem discussed
> http://lkml.org/lkml/2009/2/20/327.

Yes, the same issue.
I didn't know it was discussed before.
So what is the conclusion? Are you waiting for fixing the spinlock in
xfs?


> > Does nfsd_open() need to to call ima_path_check()?
	:::
> Yes, in order for the open/free to be balanced in ima_file_free().

Then how about putting ima_path_check() into __dentry_open() instead of
may_open()?


J. R. Okajima
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