linux-ext4 - Re: [PATCH 3/6] ext4: add self-testing infrastructure to do a sanity check

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Date:	Fri, 1 Mar 2013 11:23:26 +0800
From:	Zheng Liu <gnehzuil.liu@...il.com>
To:	Dmitry Monakhov <dmonakhov@...nvz.org>, linux-ext4@...r.kernel.org,
	Zheng Liu <wenqing.lz@...bao.com>,
	Theodore Ts'o <tytso@....edu>
Subject: Re: [PATCH 3/6] ext4: add self-testing infrastructure to do a sanity
 check

On Fri, Mar 01, 2013 at 10:29:46AM +0800, Zheng Liu wrote:
[snip]
> > > > +	if (!ext4_es_is_written(es) && !ext4_es_is_unwritten(es))
> > > > +		return;
> > > > +
> > > > +	/*
> > > > +	 * We don't need to worry about the race condition because
> > > > +	 * caller takes i_data_sem locking.
> > >          Yes, and it is good place to assertion that we hold it.
> > 
> > A BUG_ON(mutex_is_locked(&inode->i_mutex) will be added.
>            ^^^^^^^
>            !mutex_is_locked(&inode->i_mutex)

Sigh, it should be !rwsem_is_locked(&EXT4_I(inode)->i_data_sem).  Sorry
for the noisy.

Regards,
                                                - Zheng
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