From: Andrew Morton <akpm@osdl.org>
To: "Chen, Kenneth W" <kenneth.w.chen@intel.com>
Cc: "'Zach Brown'" <zach.brown@oracle.com>,
"linux-kernel" <linux-kernel@vger.kernel.org>
Subject: Re: [patch] remove redundant iov segment check
Date: Mon, 4 Dec 2006 11:36:09 -0800 [thread overview]
Message-ID: <20061204113609.753069b9.akpm@osdl.org> (raw)
In-Reply-To: <000001c717c0$f82b5ea0$2589030a@amr.corp.intel.com>
On Mon, 4 Dec 2006 08:26:36 -0800
"Chen, Kenneth W" <kenneth.w.chen@intel.com> wrote:
> So it's not possible to call down to generic_file_aio_read/write with invalid
> iov segment. Patch proposed to delete these redundant code.
erp, please don't touch that code.
The writev deadlock fixes which went into 2.6.17 trashed writev()
performance and Nick and I are slowly trying to get it back, while fixing
the has-been-there-forever pagefault-in-write() deadlock.
This is all proving very hard to do, and we don't need sweeping code
cleanups happening under our feet ;)
I'll bring those patches back in next -mm, but not very confidently.
next prev parent reply other threads:[~2006-12-04 19:36 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-04 16:26 Chen, Kenneth W
2006-12-04 19:18 ` Zach Brown
2006-12-04 19:45 ` Chen, Kenneth W
2006-12-04 19:50 ` Zach Brown
2007-01-02 11:01 ` Christoph Hellwig
2007-01-02 18:22 ` Zach Brown
2007-01-02 18:25 ` Chen, Kenneth W
2006-12-04 19:36 ` Andrew Morton [this message]
2006-12-04 19:50 ` Chen, Kenneth W
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