From: Christoph Hellwig <hch@infradead.org>
To: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Theodore Tso <tytso@mit.edu>,
Christoph Hellwig <hch@infradead.org>,
linux-api@vger.kernel.org, linux-kernel@vger.kernel.org,
Matthew Wilcox <willy@infradead.org>,
linux-f2fs-devel@lists.sourceforge.net, linux-mm@kvack.org,
linux-fsdevel@vger.kernel.org,
Akilesh Kailash <akailash@google.com>,
Christian Brauner <christian@brauner.io>
Subject: Re: [f2fs-dev] [PATCH v2] f2fs: another way to set large folio by remembering inode number
Date: Sun, 24 May 2026 22:37:06 -0700 [thread overview]
Message-ID: <ahPgAog1c6SltcQS@infradead.org> (raw)
In-Reply-To: <ag_OVwPF49LSZ7rz@google.com>
On Fri, May 22, 2026 at 03:32:39AM +0000, Jaegeuk Kim wrote:
> I went this route because Android heavily restricts ioctl() permissions
> and we needed broader access for this to work within the framework. It’s
> definitely a pragmatic choice just to get it running in production.
That is not a good reason.
> If ioctl() is a right way for upstream, I'm happy to change this patch. By
> the way, I really don't understand why all the messages are so offensive,
> even without trying to understand the problem or guiding right directions.
The right way is to:
1) Talk to the relevant subsystems (MM and fsdevel), and if it affects
userspace that linux-api list and actually explain your use case.
2) And then actually listen to feedback. f2fs just keeps piling these
ABI hacks on without any review, and it is causing real problems.
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@infradead.org>
To: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Theodore Tso <tytso@mit.edu>,
linux-api@vger.kernel.org, linux-kernel@vger.kernel.org,
Matthew Wilcox <willy@infradead.org>,
linux-f2fs-devel@lists.sourceforge.net,
Christoph Hellwig <hch@infradead.org>,
linux-mm@kvack.org, linux-fsdevel@vger.kernel.org,
Akilesh Kailash <akailash@google.com>,
Christian Brauner <christian@brauner.io>
Subject: Re: [f2fs-dev] [PATCH v2] f2fs: another way to set large folio by remembering inode number
Date: Sun, 24 May 2026 22:37:06 -0700 [thread overview]
Message-ID: <ahPgAog1c6SltcQS@infradead.org> (raw)
In-Reply-To: <ag_OVwPF49LSZ7rz@google.com>
On Fri, May 22, 2026 at 03:32:39AM +0000, Jaegeuk Kim wrote:
> I went this route because Android heavily restricts ioctl() permissions
> and we needed broader access for this to work within the framework. It’s
> definitely a pragmatic choice just to get it running in production.
That is not a good reason.
> If ioctl() is a right way for upstream, I'm happy to change this patch. By
> the way, I really don't understand why all the messages are so offensive,
> even without trying to understand the problem or guiding right directions.
The right way is to:
1) Talk to the relevant subsystems (MM and fsdevel), and if it affects
userspace that linux-api list and actually explain your use case.
2) And then actually listen to feedback. f2fs just keeps piling these
ABI hacks on without any review, and it is causing real problems.
_______________________________________________
Linux-f2fs-devel mailing list
Linux-f2fs-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
next prev parent reply other threads:[~2026-05-25 5:37 UTC|newest]
Thread overview: 116+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-09 13:45 [f2fs-dev] [PATCH] f2fs: another way to set large folio by remembering inode number Jaegeuk Kim via Linux-f2fs-devel
2026-04-09 13:45 ` Jaegeuk Kim
2026-04-10 1:16 ` [f2fs-dev] [PATCH v2] " Jaegeuk Kim via Linux-f2fs-devel
2026-04-10 1:16 ` Jaegeuk Kim
2026-04-14 8:02 ` Christoph Hellwig
2026-04-14 8:02 ` [f2fs-dev] " Christoph Hellwig
2026-04-15 16:44 ` Jaegeuk Kim
2026-04-15 16:44 ` [f2fs-dev] " Jaegeuk Kim via Linux-f2fs-devel
2026-04-15 17:15 ` Matthew Wilcox
2026-04-15 17:15 ` [f2fs-dev] " Matthew Wilcox
2026-04-15 22:02 ` Jaegeuk Kim
2026-04-15 22:02 ` [f2fs-dev] " Jaegeuk Kim via Linux-f2fs-devel
2026-04-15 23:49 ` Darrick J. Wong
2026-04-15 23:49 ` [f2fs-dev] " Darrick J. Wong via Linux-f2fs-devel
2026-04-16 1:19 ` Jaegeuk Kim
2026-04-16 1:19 ` [f2fs-dev] " Jaegeuk Kim via Linux-f2fs-devel
2026-05-21 8:51 ` Christoph Hellwig
2026-05-21 8:51 ` [f2fs-dev] " Christoph Hellwig
2026-05-21 15:57 ` Theodore Tso
2026-05-21 15:57 ` [f2fs-dev] " Theodore Tso
2026-05-21 17:42 ` Matthew Wilcox
2026-05-21 17:42 ` [f2fs-dev] " Matthew Wilcox
2026-05-22 3:59 ` Jaegeuk Kim
2026-05-22 3:59 ` [f2fs-dev] " Jaegeuk Kim via Linux-f2fs-devel
2026-05-22 12:55 ` Matthew Wilcox
2026-05-22 12:55 ` [f2fs-dev] " Matthew Wilcox
2026-05-22 14:04 ` Jaegeuk Kim
2026-05-22 14:04 ` Jaegeuk Kim via Linux-f2fs-devel
2026-05-25 5:34 ` Christoph Hellwig
2026-05-25 5:34 ` Christoph Hellwig
2026-05-26 1:21 ` Jaegeuk Kim
2026-05-26 1:21 ` Jaegeuk Kim via Linux-f2fs-devel
2026-05-26 2:31 ` Matthew Wilcox
2026-05-26 2:31 ` Matthew Wilcox
2026-05-26 3:47 ` Jaegeuk Kim
2026-05-26 3:47 ` Jaegeuk Kim via Linux-f2fs-devel
2026-05-27 6:33 ` Christoph Hellwig
2026-05-27 6:33 ` Christoph Hellwig
2026-05-27 6:26 ` Christoph Hellwig
2026-05-27 6:26 ` Christoph Hellwig
2026-05-27 15:42 ` Jaegeuk Kim
2026-05-27 15:42 ` Jaegeuk Kim via Linux-f2fs-devel
2026-05-25 5:34 ` Christoph Hellwig
2026-05-25 5:34 ` [f2fs-dev] " Christoph Hellwig
2026-05-22 3:32 ` Jaegeuk Kim
2026-05-22 3:32 ` Jaegeuk Kim via Linux-f2fs-devel
2026-05-22 3:53 ` Eric Biggers
2026-05-22 3:53 ` Eric Biggers via Linux-f2fs-devel
2026-05-22 4:02 ` Jaegeuk Kim
2026-05-22 4:02 ` Jaegeuk Kim via Linux-f2fs-devel
2026-05-22 10:01 ` Christian Brauner
2026-05-22 10:01 ` Christian Brauner via Linux-f2fs-devel
2026-05-22 14:11 ` Theodore Tso
2026-05-22 14:11 ` Theodore Tso
2026-05-22 17:08 ` Jaegeuk Kim
2026-05-22 17:08 ` Jaegeuk Kim via Linux-f2fs-devel
2026-05-22 22:41 ` Theodore Tso
2026-05-22 22:41 ` Theodore Tso
2026-05-26 1:10 ` Jaegeuk Kim
2026-05-26 1:10 ` Jaegeuk Kim via Linux-f2fs-devel
2026-05-26 2:35 ` Matthew Wilcox
2026-05-26 2:35 ` Matthew Wilcox
2026-05-26 3:34 ` Jaegeuk Kim
2026-05-26 3:34 ` Jaegeuk Kim via Linux-f2fs-devel
2026-05-26 3:35 ` Randy Dunlap
2026-05-26 3:35 ` Randy Dunlap
2026-05-26 4:12 ` Jaegeuk Kim
2026-05-26 4:12 ` Jaegeuk Kim via Linux-f2fs-devel
2026-05-26 13:42 ` Theodore Tso
2026-05-26 13:42 ` Theodore Tso
2026-05-26 16:14 ` Bart Van Assche
2026-05-26 16:14 ` Bart Van Assche via Linux-f2fs-devel
2026-05-27 6:28 ` Christoph Hellwig
2026-05-27 6:28 ` Christoph Hellwig
2026-05-27 15:59 ` Jaegeuk Kim
2026-05-27 15:59 ` Jaegeuk Kim via Linux-f2fs-devel
2026-05-29 5:36 ` Christoph Hellwig
2026-05-29 5:36 ` Christoph Hellwig
2026-05-31 0:12 ` Jaegeuk Kim
2026-05-31 0:12 ` Jaegeuk Kim via Linux-f2fs-devel
2026-05-31 5:28 ` Barry Song
2026-05-31 5:28 ` Barry Song via Linux-f2fs-devel
2026-06-01 1:52 ` Jaegeuk Kim
2026-06-01 1:52 ` Jaegeuk Kim via Linux-f2fs-devel
2026-05-26 21:52 ` Jaegeuk Kim
2026-05-26 21:52 ` Jaegeuk Kim via Linux-f2fs-devel
2026-05-27 1:21 ` Theodore Tso
2026-05-27 1:21 ` Theodore Tso
2026-05-27 2:43 ` Jaegeuk Kim
2026-05-27 2:43 ` Jaegeuk Kim via Linux-f2fs-devel
2026-05-27 3:30 ` Matthew Wilcox
2026-05-27 3:30 ` Matthew Wilcox
2026-05-27 15:39 ` Jaegeuk Kim
2026-05-27 15:39 ` Jaegeuk Kim via Linux-f2fs-devel
2026-05-27 6:31 ` Christoph Hellwig
2026-05-27 6:31 ` Christoph Hellwig
2026-05-27 1:15 ` Bart Van Assche via Linux-f2fs-devel
2026-05-27 1:15 ` Bart Van Assche
2026-05-28 19:36 ` Matthew Wilcox
2026-05-28 19:36 ` Matthew Wilcox
2026-05-31 0:35 ` Jaegeuk Kim
2026-05-31 0:35 ` Jaegeuk Kim via Linux-f2fs-devel
2026-05-25 5:37 ` Christoph Hellwig [this message]
2026-05-25 5:37 ` Christoph Hellwig
2026-05-22 9:59 ` Christian Brauner
2026-05-22 9:59 ` [f2fs-dev] " Christian Brauner via Linux-f2fs-devel
2026-04-15 16:41 ` Jaegeuk Kim
2026-04-15 16:41 ` [f2fs-dev] " Jaegeuk Kim via Linux-f2fs-devel
2026-04-17 0:58 ` Chao Yu via Linux-f2fs-devel
2026-04-17 0:58 ` Chao Yu
2026-04-17 16:54 ` Jaegeuk Kim via Linux-f2fs-devel
2026-04-17 16:54 ` Jaegeuk Kim
2026-04-18 1:08 ` Chao Yu via Linux-f2fs-devel
2026-04-18 1:08 ` Chao Yu
2026-04-18 1:11 ` Chao Yu via Linux-f2fs-devel
2026-04-18 1:11 ` Chao Yu
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