From: Theodore Ts'o <tytso@mit.edu>
To: Jan Kara <jack@suse.cz>
Cc: Ext4 Developers List <linux-ext4@vger.kernel.org>
Subject: Re: [PATCH -v3] ext4: move quota initialization out of inode allocation transaction
Date: Fri, 19 Apr 2013 12:24:53 -0400 [thread overview]
Message-ID: <20130419162453.GA20513@thunk.org> (raw)
In-Reply-To: <20130419143028.GA26647@quack.suse.cz>
On Fri, Apr 19, 2013 at 04:30:28PM +0200, Jan Kara wrote:
> > + inode->i_flags |= S_NOQUOTA;
> > + dquot_drop(inode);
> The above two lines have to be swapped to preserve original ordering
> which is actually important. Thanks.
>
> > iput(inode);
OK. I'm confused --- what is the function of the S_NOQUOTA flag here?
I thought it was dquot_drop() which needed this magic flag set. I can
swap these two lines, but maybe we should add a comment somewhere
about why this flag is needed and what the heck it's doing? At this
point, the use of this flag seems like total magic to me. :-(
- Ted
next prev parent reply other threads:[~2013-04-19 16:25 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-09 8:34 [PATCH 1/2] ext4: Improve credit estimate for EXT4_SINGLEDATA_TRANS_BLOCKS Jan Kara
2013-04-09 8:34 ` [PATCH 2/2] ext4: Move quota initialization out of inode allocation transaction Jan Kara
2013-04-09 16:42 ` Theodore Ts'o
2013-04-18 19:07 ` Theodore Ts'o
2013-04-18 21:46 ` Jan Kara
2013-04-18 23:24 ` [PATCH -v3] ext4: move " Theodore Ts'o
2013-04-19 14:30 ` Jan Kara
2013-04-19 16:24 ` Theodore Ts'o [this message]
2013-04-19 19:21 ` Jan Kara
2013-04-09 16:42 ` [PATCH 1/2] ext4: Improve credit estimate for EXT4_SINGLEDATA_TRANS_BLOCKS Theodore Ts'o
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