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From: Mike Waychison <mikew@google.com>
To: Evgeniy Polyakov <zbr@ioremap.net>
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v1 3/8] Deferred batching of iput()
Date: Tue, 20 Jan 2009 12:07:35 -0800	[thread overview]
Message-ID: <49762F07.1050404@google.com> (raw)
In-Reply-To: <20090117101809.GB2682@ioremap.net>

Evgeniy Polyakov wrote:
> On Fri, Jan 16, 2009 at 06:29:52PM -0800, Mike Waychison (mikew@google.com) wrote:
>> +static void postpone_iput(struct inode *inode)
>> +{
>> +	struct postponed_inodes *ppi, *new_ppi;
>> +
>> +again:
>> +	ppi = get_cpu_var(postponed_inodes);
>> +	if (!pending_iput_full(ppi)) {
>> +		add_pending_iput(ppi, inode);
>> +		put_cpu_var(postponed_inodes);
>> +		return;
>> +	}
>> +
>> +	/* Need to flush out existing pending inodes */
>> +	put_cpu_var(postponed_inodes);
>> +	/* Allocate more space.. */
>> +	new_ppi = new_postponed_inodes();
>> +	if (!new_ppi) {
>> +		struct postponed_inodes_onstack ppi_onstack;
>> +
>> +		ppi = init_ppi_onstack(&ppi_onstack);
>> +		add_pending_iput(ppi, inode);
>> +		process_postponed_inodes(ppi);
>> +		return;
>> +	}
> 
> The same here: what just not to call a real_iput() without on-stack
> allocation and the line?
> 

Agreed.  Will fix in the next version.

  reply	other threads:[~2009-01-20 20:07 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-01-17  2:29 [PATCH v1 0/8] Deferred dput() and iput() -- reducing lock contention Mike Waychison
2009-01-17  2:29 ` [PATCH v1 1/8] Deferred batching of dput() Mike Waychison
2009-01-17 10:15   ` Evgeniy Polyakov
2009-01-20 20:07     ` Mike Waychison
2009-01-17  2:29 ` [PATCH v1 2/8] Parallel dput() Mike Waychison
2009-01-17  2:29 ` [PATCH v1 3/8] Deferred batching of iput() Mike Waychison
2009-01-17 10:18   ` Evgeniy Polyakov
2009-01-20 20:07     ` Mike Waychison [this message]
2009-01-17  2:29 ` [PATCH v1 4/8] Fixing iput() called from put_super path Mike Waychison
2009-01-17  2:30 ` [PATCH v1 5/8] Parallelize iput() Mike Waychison
2009-01-17  2:30 ` [PATCH v1 6/8] hugetlbfs drop_inode update Mike Waychison
2009-01-17  2:30 ` [PATCH v1 7/8] Make drop_caches flush pending dput()s and iput()s Mike Waychison
2009-01-17  2:30 ` [PATCH v1 8/8] Make the sync path drain dentries and inodes Mike Waychison
2009-01-17  7:04 ` [PATCH v1 0/8] Deferred dput() and iput() -- reducing lock contention Eric Dumazet
2009-01-20 20:00   ` Mike Waychison
2009-01-17  8:12 ` Dave Chinner
2009-01-20 19:01   ` Mike Waychison
2009-01-29  2:09   ` Mike Waychison
2009-01-21  5:52 ` Andi Kleen
2009-01-21  6:22   ` Mike Waychison
2009-01-21  8:48     ` Andi Kleen
2009-01-21 17:28       ` Mike Waychison

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