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From: Baoquan He <bhe@redhat.com>
To: Oscar Salvador <osalvador@suse.de>
Cc: akpm@linux-foundation.org, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org, yanjun.zhu@linux.dev,
	x86@kernel.org
Subject: Re: [PATCH v2 5/7] x86/mm: remove pgd_leaf definition in arch
Date: Wed, 2 Apr 2025 11:39:49 +0800	[thread overview]
Message-ID: <Z+yxhf07eaqYsaIl@MiWiFi-R3L-srv> (raw)
In-Reply-To: <Z-vyGtcrU9Y3n9it@localhost.localdomain>

On 04/01/25 at 04:03pm, Oscar Salvador wrote:
> On Mon, Mar 31, 2025 at 04:13:25PM +0800, Baoquan He wrote:
> > pgd huge page is not supported yet, let's use the generic definition
> > in linux/pgtable.h.
> > 
> > And also update the BUILD_BUG_ON() checking for pgd_leaf() in
> > pti_user_pagetable_walk_p4d() because pgd_leaf() returns boolean value.
> > 
> > Signed-off-by: Baoquan He <bhe@redhat.com>
> > Cc: x86@kernel.org
> 
> I have been carrying a sort of this patch in my tree as well for quite
> some time now, and I think that Christophe also sent it some time ago,
> so glad someone finally pushed it
> 
> https://patchwork.kernel.org/project/linux-mm/patch/20240704043132.28501-2-osalvador@suse.de/

Oops, I even commented in Christophe's patch thread to ask why the
patchset hasn't been merged yet. Later when I focused on mm/gup.c code
reading, I forgot that posting completely. Hope you don't mind I grab
you and Christophe's credit since Ingo has picked it into x86/tip tree.

[PATCH v3 1/5] arch/x86: Drop own definition of pgd,p4d_leaf

> 
> Reviewed-by: Oscar Salvador <osalvador@suse.de>
> 
> 
> -- 
> Oscar Salvador
> SUSE Labs
> 



  reply	other threads:[~2025-04-02  3:40 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-31  8:13 [PATCH v2 0/7] mm/gup: Minor fix, cleanup and improvements Baoquan He
2025-03-31  8:13 ` [PATCH v2 1/7] mm/gup: fix wrongly calculated returned value in fault_in_safe_writeable() Baoquan He
2025-04-01  8:10   ` David Hildenbrand
2025-04-01 14:00     ` Oscar Salvador
2025-04-01 14:12       ` Baoquan He
2025-04-01 14:11     ` Baoquan He
2025-03-31  8:13 ` [PATCH v2 2/7] mm/gup: check if both GUP_GET and GUP_PIN are set in __get_user_pages() earlier Baoquan He
2025-04-01  8:02   ` David Hildenbrand
2025-04-01 14:34     ` Baoquan He
2025-04-01 14:37       ` David Hildenbrand
2025-04-02  1:26         ` Baoquan He
2025-03-31  8:13 ` [PATCH v2 3/7] mm/gup: Fix the outdated code comments above get_user_pages_unlocked() Baoquan He
2025-04-01  8:14   ` David Hildenbrand
2025-04-01 14:36     ` Baoquan He
2025-04-01 13:51   ` Oscar Salvador
2025-04-01 15:29     ` Baoquan He
2025-03-31  8:13 ` [PATCH v2 4/7] mm/gup: remove gup_fast_pgd_leaf() and clean up the relevant codes Baoquan He
2025-04-01  8:19   ` David Hildenbrand
2025-04-01 14:11   ` Oscar Salvador
2025-03-31  8:13 ` [PATCH v2 5/7] x86/mm: remove pgd_leaf definition in arch Baoquan He
2025-03-31 10:25   ` [tip: x86/mm] x86/mm: Simplify the pgd_leaf() and p4d_leaf() checks a bit tip-bot2 for Baoquan He
2025-03-31 10:26   ` [tip: x86/mm] x86/mm: Remove the arch-specific pgd_leaf() definition tip-bot2 for Baoquan He
2025-04-01  8:21   ` [PATCH v2 5/7] x86/mm: remove pgd_leaf definition in arch David Hildenbrand
2025-04-01 14:03   ` Oscar Salvador
2025-04-02  3:39     ` Baoquan He [this message]
2025-04-01 20:53   ` [tip: x86/mm] x86/mm: Simplify the pgd_leaf() and p4d_leaf() checks a bit tip-bot2 for Baoquan He
2025-04-01 20:53   ` [tip: x86/mm] x86/mm: Remove the arch-specific pgd_leaf() definition tip-bot2 for Baoquan He
2025-04-01 21:03   ` [tip: x86/mm] x86/mm: Simplify the pgd_leaf() and p4d_leaf() checks a bit tip-bot2 for Baoquan He
2025-03-31  8:13 ` [PATCH v2 6/7] x86/mm: remove p4d_leaf definition Baoquan He
2025-03-31  9:57   ` Ingo Molnar
2025-03-31 14:20     ` Baoquan He
2025-04-01  7:20       ` Ingo Molnar
2025-04-03 13:44         ` Baoquan He
2025-03-31 10:25   ` [tip: x86/mm] x86/mm: Remove the arch-specific p4d_leaf() definition tip-bot2 for Baoquan He
2025-04-01 14:05   ` [PATCH v2 6/7] x86/mm: remove p4d_leaf definition Oscar Salvador
2025-04-01 20:53   ` [tip: x86/mm] x86/mm: Remove the arch-specific p4d_leaf() definition tip-bot2 for Baoquan He
2025-04-01 21:03   ` tip-bot2 for Baoquan He
2025-03-31  8:13 ` [PATCH v2 7/7] mm/pgtable: remove unneeded pgd_devmap() Baoquan He
2025-04-01  8:21   ` David Hildenbrand
2025-04-02  3:33     ` Baoquan He

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