From: hooanon05@yahoo.co.jp
To: zohar@us.ibm.com
Cc: linux-kernel@vger.kernel.org
Subject: IMA and fs
Date: Thu, 16 Apr 2009 22:19:45 +0900 [thread overview]
Message-ID: <15909.1239887985@jrobl> (raw)
I have found (at least) two issues about IMA.
1.
Calling stack
- kmem_cache_alloc(iint_cache, GFP_KERNEL)
- ima_inode_alloc()
- inode_init_always()
- xfs_iget_cache_hit()
- xfs_iget()
xfs_iget() holds spinlock before xfs_iget_cache_hit(), and
ima_inode_alloc() cannot use GFP_KERNEL.
2.
ima_path_check() seems to be necessary before every opening a file.
In 2.6.30-rc1, IMA produces lots of messages and stack trace when NFSD
opens a file.
Does nfsd_open() need to to call ima_path_check()?
J. R. Okajima
next reply other threads:[~2009-04-16 13:20 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-16 13:19 hooanon05 [this message]
2009-04-17 13:29 ` IMA and fs Mimi Zohar
2009-04-17 13:57 ` hooanon05
2009-04-17 18:20 ` Mimi Zohar
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