From: Lukas Wunner <lukas@wunner.de>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Will Deacon <will@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Arnd Bergmann <arnd@kernel.org>,
Russell King - ARM Linux admin <linux@armlinux.org.uk>,
linux-toolchains@vger.kernel.org,
Mark Rutland <mark.rutland@arm.com>,
Theodore Ts'o <tytso@mit.edu>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Andreas Dilger <adilger.kernel@dilger.ca>,
Ext4 Developers List <linux-ext4@vger.kernel.org>,
Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: Aarch64 EXT4FS inode checksum failures - seems to be weak memory ordering issues
Date: Tue, 12 Jan 2021 14:20:49 +0100 [thread overview]
Message-ID: <20210112132049.GA26096@wunner.de> (raw)
In-Reply-To: <CAHk-=whnKkj5CSbj-uG_MVVUsPZ6ppd_MFhZf_kpXDkh2MAVRA@mail.gmail.com>
On Fri, Jan 08, 2021 at 12:02:53PM -0800, Linus Torvalds wrote:
> I appreciate Arnd pointing out "--std=gnu11", though. What are the
> actual relevant language improvements?
>
> Variable declarations in for-loops is the only one I can think of. I
> think that would clean up some code (and some macros), but might not
> be compelling on its own.
Anonymous structs/unions. I used to have a use case for that in
struct efi_dev_path in include/linux/efi.h, but Ard Biesheuvel
refactored it in a gnu89-compatible way for v5.7 with db8952e7094f.
[The above was copy-pasted from last time this discussion came up
in July 2020. Back then, Kirill Shutemov likewise mentioned the
local variables in loops feature:
https://lore.kernel.org/lkml/20200710111724.m4jaci73pykalxys@wunner.de/
]
Thanks,
Lukas
next prev parent reply other threads:[~2021-01-12 13:21 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210105154726.GD1551@shell.armlinux.org.uk>
[not found] ` <20210106115359.GB26994@C02TD0UTHF1T.local>
[not found] ` <20210106135253.GJ1551@shell.armlinux.org.uk>
[not found] ` <20210106172033.GA2165@willie-the-truck>
[not found] ` <20210106223223.GM1551@shell.armlinux.org.uk>
2021-01-07 11:18 ` Aarch64 EXT4FS inode checksum failures - seems to be weak memory ordering issues Russell King - ARM Linux admin
2021-01-07 12:45 ` Russell King - ARM Linux admin
2021-01-07 13:16 ` Arnd Bergmann
2021-01-07 13:37 ` Russell King - ARM Linux admin
2021-01-07 16:27 ` Theodore Ts'o
2021-01-07 17:00 ` Florian Weimer
2021-01-07 21:48 ` Arnd Bergmann
2021-01-07 22:14 ` Russell King - ARM Linux admin
2021-01-07 22:41 ` Eric Biggers
2021-01-08 8:21 ` Ard Biesheuvel
2021-01-07 22:27 ` Eric Biggers
2021-01-07 23:53 ` Darrick J. Wong
2021-01-08 8:05 ` Arnd Bergmann
2021-01-08 9:13 ` Peter Zijlstra
2021-01-08 10:31 ` Pavel Machek
2021-01-07 21:20 ` Arnd Bergmann
2021-01-08 9:21 ` Peter Zijlstra
2021-01-08 9:26 ` Will Deacon
2021-01-08 20:02 ` Linus Torvalds
2021-01-08 20:22 ` Arnd Bergmann
2021-01-08 21:20 ` Nick Desaulniers
2021-01-08 20:29 ` Russell King - ARM Linux admin
2021-01-12 13:20 ` Lukas Wunner [this message]
2021-01-12 13:31 ` Florian Weimer
2021-01-12 13:46 ` David Laight
2021-01-12 17:28 ` Linus Torvalds
2021-01-14 13:13 ` Lukas Wunner
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