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From: Christophe Leroy <christophe.leroy@csgroup.eu>
To: Arnd Bergmann <arnd@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>,
	Daniel Bristot de Oliveira <bristot@redhat.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Paul Mackerras <paulus@samba.org>,
	Daniel Vetter <daniel@ffwll.ch>, Arnd Bergmann <arnd@arndb.de>,
	LKML <linux-kernel@vger.kernel.org>,
	Vineet Gupta <vgupta@synopsys.com>,
	Max Filippov <jcmvbkbc@gmail.com>, Nick Hu <nickhu@andestech.com>,
	Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	Michal Simek <monstr@monstr.eu>, Chris Zankel <chris@zankel.net>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Greentime Hu <green.hu@gmail.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
	Paul McKenney <paulmck@kernel.org>,
	Ard Biesheuvel <ardb@kernel.org>,
	"open list:SYNOPSYS ARC ARCHITECTURE"
	<linux-snps-arc@lists.infradead.org>,
	Mel Gorman <mgorman@suse.de>, David Airlie <airlied@linux.ie>,
	Christoph Hellwig <hch@lst.de>,
	linux-csky@vger.kernel.org, Russell King <linux@armlinux.org.uk>,
	the arch/x86 maintainers <x86@kernel.org>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	linux-arch <linux-arch@vger.kernel.org>,
	Ingo Molnar <mingo@kernel.org>,
	Vincent Chen <deanbo422@gmail.com>,
	linux-sparc <sparclinux@vger.kernel.org>,
	Matthew Wilcox <willy@infradead.org>, Guo Ren <guoren@kernel.org>,
	Linux-MM <linux-mm@kvack.org>, Ben Segall <bsegall@google.com>,
	"open list:BROADCOM NVRAM DRIVER" <linux-mips@vger.kernel.org>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Peter Zijlstra <peterz@infradead.org>,
	linux-xtensa@linux-xtensa.org, Juri Lelli <juri.lelli@redhat.com>,
	Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [patch V2 00/18] mm/highmem: Preemptible variant of kmap_atomic & friends
Date: Sat, 31 Oct 2020 16:05:39 +0100	[thread overview]
Message-ID: <20201031160539.Horde.n5yNbG9LoUSWqtuPQW_h3w1@messagerie.c-s.fr> (raw)
In-Reply-To: <CAK8P3a3FyKTHDSAPCyP8e7UA0LN3OvAatNK_vQ3tnBsdbou4sA@mail.gmail.com>


> There are also some users on 10+ year old 32-bit netbooks or
> business laptops, both x86 and Apple G4.
> The longest-lived 32-bit embedded systems with large memory
> (other than Arm) are probably NXP QorIQ P20xx/P40xx used in
> military VME bus systems, and low-end embedded systems based
> on Vortex86.
> I'm less worried about all of these because upstream kernel
> support for ppc32 and x86-32 is already bitrotting and they will
> likely get stuck on the last working kernel before the
> TI/Renesas/NXP Arm systems do.
>

Upstream kernel support for ppc32 is bitrotting, seriously ? What do  
you mean exactly ?

ppc32 is actively supported, with recent addition of support of  
hugepages, kasan, uaccess protection, VMAP stack, etc ...

Christophe




  reply	other threads:[~2020-10-31 15:03 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-29 22:18 Thomas Gleixner
2020-10-29 22:18 ` [patch V2 01/18] sched: Make migrate_disable/enable() independent of RT Thomas Gleixner
2020-10-29 22:18 ` [patch V2 02/18] mm/highmem: Un-EXPORT __kmap_atomic_idx() Thomas Gleixner
2020-10-29 22:18 ` [patch V2 03/18] highmem: Provide generic variant of kmap_atomic* Thomas Gleixner
2020-10-29 22:18 ` [patch V2 04/18] x86/mm/highmem: Use generic kmap atomic implementation Thomas Gleixner
2020-10-29 22:18 ` [patch V2 05/18] arc/mm/highmem: " Thomas Gleixner
2020-10-29 22:18 ` [patch V2 06/18] ARM: highmem: Switch to generic kmap atomic Thomas Gleixner
2020-10-29 22:18 ` [patch V2 07/18] csky/mm/highmem: " Thomas Gleixner
2020-10-29 22:18 ` [patch V2 08/18] microblaze/mm/highmem: " Thomas Gleixner
2020-10-29 22:18 ` [patch V2 09/18] mips/mm/highmem: " Thomas Gleixner
2020-10-29 22:18 ` [patch V2 10/18] nds32/mm/highmem: " Thomas Gleixner
2020-10-29 22:18 ` [patch V2 11/18] powerpc/mm/highmem: " Thomas Gleixner
2020-10-29 22:18 ` [patch V2 12/18] sparc/mm/highmem: " Thomas Gleixner
2020-10-29 22:18 ` [patch V2 13/18] xtensa/mm/highmem: " Thomas Gleixner
2020-10-29 22:18 ` [patch V2 14/18] mm/highmem: Remove the old kmap_atomic cruft Thomas Gleixner
2020-10-29 22:18 ` [patch V2 15/18] io-mapping: Cleanup atomic iomap Thomas Gleixner
2020-10-29 22:18 ` [patch V2 16/18] sched: highmem: Store local kmaps in task struct Thomas Gleixner
2020-10-29 22:18 ` [patch V2 17/18] mm/highmem: Provide kmap_local* Thomas Gleixner
2020-10-29 22:18 ` [patch V2 18/18] io-mapping: Provide iomap_local variant Thomas Gleixner
2020-10-29 23:11 ` [patch V2 00/18] mm/highmem: Preemptible variant of kmap_atomic & friends Linus Torvalds
2020-10-29 23:41   ` Thomas Gleixner
2020-10-30  9:39     ` Thomas Gleixner
2020-10-30 20:28       ` Linus Torvalds
2020-10-30 22:26         ` Thomas Gleixner
2020-10-30 22:46           ` Linus Torvalds
2020-10-30 23:26             ` Thomas Gleixner
2020-10-30 23:53               ` Thomas Gleixner
2020-10-31 13:37             ` Arnd Bergmann
2020-10-31 15:05               ` Christophe Leroy [this message]
2020-10-31 21:33                 ` Arnd Bergmann
2020-10-30  7:25 ` Christoph Hellwig
2020-10-30  9:39   ` Thomas Gleixner
2020-10-30 13:06 ` Matthew Wilcox
2020-10-30 19:35   ` Thomas Gleixner
2020-11-02  1:08 ` Thomas Gleixner

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