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From: "Michael K. Edwards" <medwards.linux@gmail.com>
To: "Christoph Hellwig" <hch@infradead.org>,
	"Michael K. Edwards" <medwards.linux@gmail.com>,
	"David Miller" <davem@davemloft.net>,
	alan@lxorguk.ukuu.org.uk, 7eggert@gmx.de, dada1@cosmosbay.com,
	linux-kernel@vger.kernel.org
Subject: Re: sys_write() racy for multi-threaded append?
Date: Tue, 13 Mar 2007 16:40:41 -0700	[thread overview]
Message-ID: <f2b55d220703131640p47f441cdk6f213e64eb78f2e3@mail.gmail.com> (raw)
In-Reply-To: <20070313190949.GA3417@infradead.org>

On 3/13/07, Christoph Hellwig <hch@infradead.org> wrote:
> Michael, please stop spreading this utter bullshit _now_.  You're so
> full of half-knowledge that it's not funny anymore, and you try
> to insult people knowing a few magniutes more than you left and right.

Thank you Christoph for that informative response to my comments.  I
take it that you consider read_write.c to be code of the highest
quality and maintainability.  If you have something specific in mind
when you write "utter bullshit" and "half-knowledge", I'd love to hear
it.

Now, for those who still care to respond as if improving the kernel
were a goal that you and I can share, a question:  When
generic_file_llseek needs the inode in order to retrieve the current
file size, it goes through f_mapping (the pagecache entry?) rather
than through f_path.dentry (the dentry cache?).  All other inode
retrievals in read_write.c go through f_path.dentry.  Why?  Or is this
a question that can only be asked on linux-fsdevel?

Cheers,
- Michael

  reply	other threads:[~2007-03-13 23:40 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <7WzUo-1zl-21@gated-at.bofh.it>
     [not found] ` <7WAx2-2pg-21@gated-at.bofh.it>
     [not found]   ` <7WAGF-2Bx-9@gated-at.bofh.it>
     [not found]     ` <7WB07-3g5-33@gated-at.bofh.it>
     [not found]       ` <7WBt7-3SZ-23@gated-at.bofh.it>
2007-03-12  7:53         ` sys_write() racy for multi-threaded append? Bodo Eggert
2007-03-12 16:26           ` Michael K. Edwards
2007-03-12 18:48             ` Bodo Eggert
2007-03-13  0:46               ` Michael K. Edwards
2007-03-13  2:24                 ` Alan Cox
2007-03-13  7:25                   ` Michael K. Edwards
2007-03-13  7:42                     ` David Miller
2007-03-13 16:24                       ` Michael K. Edwards
2007-03-13 17:59                         ` Michael K. Edwards
2007-03-13 19:09                           ` Christoph Hellwig
2007-03-13 23:40                             ` Michael K. Edwards [this message]
2007-03-14  0:09                               ` Michael K. Edwards
2007-03-13 13:15                     ` Alan Cox
2007-03-14 20:09                       ` Michael K. Edwards
2007-03-16 16:43                         ` Frank Ch. Eigler
2007-03-16 17:25                         ` Alan Cox
2007-03-13 14:00                   ` David M. Lloyd
2007-03-08 23:08 Michael K. Edwards
2007-03-08 23:43 ` Eric Dumazet
2007-03-08 23:57   ` Michael K. Edwards
2007-03-09  0:15     ` Eric Dumazet
2007-03-09  0:45       ` Michael K. Edwards
2007-03-09  1:34         ` Benjamin LaHaise
2007-03-09 12:19           ` Michael K. Edwards
2007-03-09 13:44             ` Eric Dumazet
2007-03-09 14:10             ` Alan Cox
2007-03-09 14:59             ` Benjamin LaHaise
2007-03-10  6:43               ` Michael K. Edwards
2007-03-09  5:53         ` Eric Dumazet
2007-03-09 11:52           ` Michael K. Edwards
2007-03-09  0:43 ` Alan Cox

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