From: Jan Kara <jack@suse.cz>
To: Christoph Hellwig <hch@infradead.org>
Cc: Dave Kleikamp <shaggy@austin.ibm.com>,
fsdevel <linux-fsdevel@vger.kernel.org>
Subject: Re: missing inode_add_bytes in dquot_alloc_space
Date: Fri, 16 Jan 2004 14:33:58 +0100 [thread overview]
Message-ID: <20040116133358.GA32426@atrey.karlin.mff.cuni.cz> (raw)
In-Reply-To: <20040116121949.A23101@infradead.org>
> On Fri, Jan 16, 2004 at 12:20:28PM +0100, Jan Kara wrote:
> > down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
> > - if (IS_NOQUOTA(inode)) {
> > - up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
> > - return QUOTA_OK;
> > - }
> > spin_lock(&dq_data_lock);
> > + if (IS_NOQUOTA(inode))
> > + goto add_bytes;
>
> This means we take a global lock now even for non-quota operations?
> Doesn't sound like a really good idea..
This is only the case of quota files themselves - other cases (like
when quota is not compiled/not turned on) are solved by macros in
quotaops.h used by filesystems.
Honza
--
Jan Kara <jack@suse.cz>
SuSE CR Labs
next prev parent reply other threads:[~2004-01-16 13:37 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-14 16:27 missing inode_add_bytes in dquot_alloc_space Dave Kleikamp
2004-01-15 8:43 ` Jan Kara
2004-01-16 11:20 ` Jan Kara
2004-01-16 12:19 ` Christoph Hellwig
2004-01-16 13:33 ` Jan Kara [this message]
2004-01-16 13:57 ` Christoph Hellwig
2004-01-16 13:37 ` Dave Kleikamp
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