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From: Jim Meyering <jim@meyering.net>
To: Ric Wheeler <rwheeler@redhat.com>
Cc: "Pádraig Brady" <P@draigBrady.com>,
	"Chris Mason" <chris.mason@oracle.com>,
	"Giuseppe Scrivano" <gscrivano@gnu.org>,
	bug-coreutils@gnu.org, linux-btrfs@vger.kernel.org
Subject: Re: BTRFS file clone support for cp
Date: Thu, 30 Jul 2009 18:48:44 +0200	[thread overview]
Message-ID: <87ab2mqfpv.fsf@meyering.net> (raw)
In-Reply-To: <4A71CA20.2070906@redhat.com> (Ric Wheeler's message of "Thu, 30 Jul 2009 12:28:16 -0400")

Ric Wheeler wrote:
> I think that doing reflink by default would be a horrible idea - one
> good reason to copy a file is to increase your level of fault
> tolerance and reflink magically avoids that :-)

Good point.
This would constitute another user-visible semantic change in cp:
a disk fault that affects any non-metadata block of a ref-linked file
affects both copies.

GNU cp will soon attempt this only when a --reflink option is specified.

  reply	other threads:[~2009-07-30 16:48 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <87d47o3fip.fsf@master.homenet>
     [not found] ` <4A6CEA48.5050208@draigBrady.com>
     [not found]   ` <8763defuvq.fsf@meyering.net>
     [not found]     ` <87ws5tvrq8.fsf@master.homenet>
2009-07-27 23:40       ` BTRFS file clone support for cp Pádraig Brady
2009-07-28 20:06         ` Giuseppe Scrivano
2009-07-29 13:01           ` Chris Mason
2009-07-29 14:14             ` Pádraig Brady
2009-07-29 16:10               ` Chris Mason
2009-07-29 16:18                 ` Chris Mason
2009-07-29 18:14                 ` Pádraig Brady
2009-07-30  0:57                   ` Joel Becker
2009-07-30  7:39                     ` Jim Meyering
2009-07-30  8:21                       ` Joel Becker
2009-07-30  8:40                       ` Pádraig Brady
2009-07-30 16:28                         ` Ric Wheeler
2009-07-30 16:48                           ` Jim Meyering [this message]
2009-07-30  9:26                       ` Andi Kleen
2009-07-30 10:02                         ` Pádraig Brady
2009-07-30 10:16                         ` Jim Meyering
2009-07-30 10:21                           ` Tomasz Chmielewski
2009-07-30 10:54                           ` Andi Kleen
2009-07-30 18:05                             ` Joel Becker
2009-07-30 23:28                               ` Pádraig Brady
     [not found]         ` <87k51r9sxh.fsf@master.homenet>
     [not found]           ` <4A70C4E0.9030104@draigBrady.com>
2009-07-30 17:28             ` Giuseppe Scrivano

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