Messages in this thread | | | Date | Tue, 20 May 2008 09:58:10 -0700 | From | Arjan van de Ven <> | Subject | Re: [RFC][PATCH 0/3] configfs: Make nested default groups lockdep-friendly |
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On Tue, 20 May 2008 18:33:20 +0200 Louis Rilling <Louis.Rilling@kerlabs.com> wrote:
> Hi all, > > The following patches fix lockdep warnings resulting from (correct) > recursive locking in configfs. > > Current lockdep annotations for inode mutexes in configfs are > lockdep-friendly provided that: > 1/ config_groups have at most one level of default groups (see > configfs_attach_group()), > 2/ config_groups having default groups are never removed (see > configfs_detach_prep()). > > Since lockdep does not handle such correct recursion, the idea is to > insert lockdep_off()/lockdep_on() for inode mutexes as soon as the > level of recursion of the I_MUTEX_PARENT -> I_MUTEX_CHILD dependency > pattern increases.
I'm... not entirely happy with such a solution ;(
there must be a better one.
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