From: Matt Whitlock <kernel@mattwhitlock.name>
To: David Howells <dhowells@redhat.com>
Cc: <netdev@vger.kernel.org>, Matthew Wilcox <willy@infradead.org>,
Dave Chinner <david@fromorbit.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Jens Axboe <axboe@kernel.dk>, <linux-fsdevel@kvack.org>,
<linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [RFC PATCH 0/4] splice: Fix corruption in data spliced to pipe
Date: Thu, 29 Jun 2023 14:16:02 -0400 [thread overview]
Message-ID: <7d33f8a7-eb75-4a0d-bb10-aa4ab497c016@mattwhitlock.name> (raw)
In-Reply-To: <20230629155433.4170837-1-dhowells@redhat.com>
On Thursday, 29 June 2023 11:54:29 EDT, David Howells wrote:
> Matt Whitlock, Matthew Wilcox and Dave Chinner are of the opinion that data
> in the pipe must not be seen to change and that if it does, this is a bug.
> Apart from in one specific instance (vmsplice() with SPLICE_F_GIFT), the
> manual pages agree with them. I'm more inclined to adjust the
> documentation since the behaviour we have has been that way since 2005, I
> think.
Anecdotally, my use case had been working fine for years until I upgraded
from 5.15.x to 6.1.x in February of this year. That's when my backups
started being corrupted. I only noticed when I was trying to restore a lost
file from backup earlier this week.
next prev parent reply other threads:[~2023-06-29 18:16 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-29 15:54 David Howells
2023-06-29 15:54 ` [RFC PATCH 1/4] splice: Fix corruption of spliced data after splice() returns David Howells
2023-07-19 10:17 ` Miklos Szeredi
2023-07-19 17:59 ` Matt Whitlock
2023-07-19 19:35 ` Miklos Szeredi
2023-07-19 19:44 ` Matthew Wilcox
2023-07-19 19:56 ` Miklos Szeredi
2023-07-19 20:04 ` Matthew Wilcox
2023-07-19 20:16 ` Linus Torvalds
2023-07-19 21:02 ` Matt Whitlock
2023-07-19 23:20 ` Linus Torvalds
2023-07-19 23:41 ` Matt Whitlock
2023-07-20 0:00 ` Linus Torvalds
2023-07-19 23:48 ` Linus Torvalds
2023-07-24 9:44 ` David Howells
2023-07-24 13:55 ` Miklos Szeredi
2023-07-24 16:15 ` David Howells
2023-06-29 15:54 ` [RFC PATCH 2/4] splice: Make vmsplice() steal or copy David Howells
2023-06-30 13:44 ` Simon Horman
2023-06-30 15:29 ` David Howells
2023-06-30 17:32 ` Simon Horman
2023-06-29 15:54 ` [RFC PATCH 3/4] splice: Remove some now-unused bits David Howells
2023-06-29 15:54 ` [RFC PATCH 4/4] splice: Record some statistics David Howells
2023-06-29 17:56 ` [RFC PATCH 0/4] splice: Fix corruption in data spliced to pipe Linus Torvalds
2023-06-29 18:05 ` Matt Whitlock
2023-06-29 18:19 ` Linus Torvalds
2023-06-29 18:34 ` Matthew Wilcox
2023-06-29 18:53 ` Linus Torvalds
2023-06-30 16:50 ` David Howells
2023-06-29 18:42 ` Linus Torvalds
2023-06-29 18:16 ` Matt Whitlock [this message]
2023-06-30 0:01 ` Jakub Kicinski
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