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From: David Laight <David.Laight@ACULAB.COM>
To: 'Peter Zijlstra' <peterz@infradead.org>,
	Linus Torvalds <torvalds@linux-foundation.org>
Cc: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>,
	Alexey Dobriyan <adobriyan@gmail.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	"akpm@linux-foundation.org" <akpm@linux-foundation.org>
Subject: RE: Buggy __free(kfree) usage pattern already in tree
Date: Wed, 20 Sep 2023 11:02:51 +0000	[thread overview]
Message-ID: <a0ba32c892654a2bb60327e103d181fb@AcuMS.aculab.com> (raw)
In-Reply-To: <20230919193516.GA20937@noisy.programming.kicks-ass.net>

If this stuff is so hard to get right for non-trivial cases
perhaps it should all be ripped out?

The trivial cases are pretty easy to eve-ball check and
static analysis tools do a reasonable job.

Maybe I'm 'old-school' but I'd much rather see explicit
unlock() and free() than have 'some compiler magic' do
it for you.

	David

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Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)


      reply	other threads:[~2023-09-20 11:03 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-15  9:56 Buggy __free(kfree) usage pattern already in tree Alexey Dobriyan
2023-09-15 10:09 ` Bartosz Golaszewski
2023-09-15 17:04 ` Linus Torvalds
2023-09-15 17:22   ` Bartosz Golaszewski
2023-09-15 19:06     ` Linus Torvalds
2023-09-15 19:27       ` Bartosz Golaszewski
2023-09-15 20:03         ` Bartosz Golaszewski
2023-09-15 20:40           ` Linus Torvalds
2023-09-15 21:08             ` Peter Zijlstra
2023-09-15 21:18               ` Peter Zijlstra
2023-09-15 21:25                 ` Linus Torvalds
2023-09-15 21:22               ` Linus Torvalds
2023-09-15 21:32                 ` Peter Zijlstra
2023-09-15 21:50                   ` Linus Torvalds
2023-09-15 22:10                     ` Linus Torvalds
2023-09-15 22:13                     ` Peter Zijlstra
2023-09-19 12:57                       ` Peter Zijlstra
2023-09-19 12:59                         ` Peter Zijlstra
2023-09-19 13:10                           ` Peter Zijlstra
2023-09-19 19:35                             ` Peter Zijlstra
2023-09-20 11:02                               ` David Laight [this message]

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