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From: Ingo Molnar <mingo@kernel.org>
To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	x86@kernel.org, Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Arnd Bergmann <arnd@arndb.de>,
	"H. Peter Anvin" <hpa@zytor.com>, Andi Kleen <ak@linux.intel.com>,
	Dave Hansen <dave.hansen@intel.com>,
	Andy Lutomirski <luto@amacapital.net>,
	Michal Hocko <mhocko@suse.com>,
	linux-arch@vger.kernel.org, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 22/26] x86/mm: add sync_global_pgds() for configuration with 5-level paging
Date: Mon, 13 Mar 2017 08:22:27 +0100	[thread overview]
Message-ID: <20170313072227.GB28726@gmail.com> (raw)
In-Reply-To: <20170313055020.69655-23-kirill.shutemov@linux.intel.com>


* Kirill A. Shutemov <kirill.shutemov@linux.intel.com> wrote:

> This basically restores slightly modified version of original
> sync_global_pgds() which we had before foldedl p4d was introduced.

Please read your changelogs, I saw several typos/grammar mistakes in earlier 
patches. The one here is:

	s/foldedl/folded

> +	for (address = start; address <= end && address >= start;
> +			address += PGDIR_SIZE) {

Please don't address col80 checkpatch warnings by breaking the line in such an 
ugly way! Find another method, or just leave it slightly longer than 80 cols.

This one could probably be solved by:

	s/address/addr

... which is the canonical variable name for such iterations anyway.

> +			/* the pgt_lock only for Xen */

Please use whole sentences in comments, and please capitalize them properly.

I.e. here:


			/* We acquire the pgt_lock only for Xen: */

> +				BUG_ON(pgd_page_vaddr(*pgd)
> +						!= pgd_page_vaddr(*pgd_ref));

Ugly col80 artifact ...

Please review the rest of the series for similar patterns as well, and please only 
post 5-10 patches in the next submission - we'll review and apply them step by 
step.

Thanks,

	Ingo

WARNING: multiple messages have this Message-ID (diff)
From: Ingo Molnar <mingo@kernel.org>
To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	x86@kernel.org, Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Arnd Bergmann <arnd@arndb.de>,
	"H. Peter Anvin" <hpa@zytor.com>, Andi Kleen <ak@linux.intel.com>,
	Dave Hansen <dave.hansen@intel.com>,
	Andy Lutomirski <luto@amacapital.net>,
	Michal Hocko <mhocko@suse.com>,
	linux-arch@vger.kernel.org, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 22/26] x86/mm: add sync_global_pgds() for configuration with 5-level paging
Date: Mon, 13 Mar 2017 08:22:27 +0100	[thread overview]
Message-ID: <20170313072227.GB28726@gmail.com> (raw)
In-Reply-To: <20170313055020.69655-23-kirill.shutemov@linux.intel.com>


* Kirill A. Shutemov <kirill.shutemov@linux.intel.com> wrote:

> This basically restores slightly modified version of original
> sync_global_pgds() which we had before foldedl p4d was introduced.

Please read your changelogs, I saw several typos/grammar mistakes in earlier 
patches. The one here is:

	s/foldedl/folded

> +	for (address = start; address <= end && address >= start;
> +			address += PGDIR_SIZE) {

Please don't address col80 checkpatch warnings by breaking the line in such an 
ugly way! Find another method, or just leave it slightly longer than 80 cols.

This one could probably be solved by:

	s/address/addr

... which is the canonical variable name for such iterations anyway.

> +			/* the pgt_lock only for Xen */

Please use whole sentences in comments, and please capitalize them properly.

I.e. here:


			/* We acquire the pgt_lock only for Xen: */

> +				BUG_ON(pgd_page_vaddr(*pgd)
> +						!= pgd_page_vaddr(*pgd_ref));

Ugly col80 artifact ...

Please review the rest of the series for similar patterns as well, and please only 
post 5-10 patches in the next submission - we'll review and apply them step by 
step.

Thanks,

	Ingo

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  reply	other threads:[~2017-03-13  7:22 UTC|newest]

Thread overview: 98+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-13  5:49 [PATCH 00/26] x86: 5-level paging enabling for v4.12 Kirill A. Shutemov
2017-03-13  5:49 ` Kirill A. Shutemov
2017-03-13  5:49 ` Kirill A. Shutemov
2017-03-13  5:49 ` [PATCH 01/26] x86: basic changes into headers for 5-level paging Kirill A. Shutemov
2017-03-13  5:49   ` Kirill A. Shutemov
2017-03-13  5:49 ` [PATCH 02/26] x86: trivial portion of 5-level paging conversion Kirill A. Shutemov
2017-03-13  5:49   ` Kirill A. Shutemov
2017-03-13  5:49 ` [PATCH 03/26] x86/gup: add 5-level paging support Kirill A. Shutemov
2017-03-13  5:49   ` Kirill A. Shutemov
2017-03-13  5:49 ` [PATCH 04/26] x86/ident_map: " Kirill A. Shutemov
2017-03-13  5:49   ` Kirill A. Shutemov
2017-03-13  5:49 ` [PATCH 05/26] x86/mm: add support of p4d_t in vmalloc_fault() Kirill A. Shutemov
2017-03-13  5:49   ` Kirill A. Shutemov
2017-03-13  5:50 ` [PATCH 06/26] x86/power: support p4d_t in hibernate code Kirill A. Shutemov
2017-03-13  5:50   ` Kirill A. Shutemov
2017-03-13  5:50 ` [PATCH 07/26] x86/kexec: support p4d_t Kirill A. Shutemov
2017-03-13  5:50   ` Kirill A. Shutemov
2017-03-13  5:50 ` [PATCH 08/26] x86/efi: handle p4d in EFI pagetables Kirill A. Shutemov
2017-03-13  5:50   ` Kirill A. Shutemov
2017-03-13  5:50 ` [PATCH 09/26] x86/mm/pat: handle additional page table Kirill A. Shutemov
2017-03-13  5:50   ` Kirill A. Shutemov
2017-03-13  5:50 ` [PATCH 10/26] x86/kasan: prepare clear_pgds() to switch to <asm-generic/pgtable-nop4d.h> Kirill A. Shutemov
2017-03-13  5:50   ` Kirill A. Shutemov
2017-03-13  5:50 ` [PATCH 11/26] x86/xen: convert __xen_pgd_walk() and xen_cleanmfnmap() to support p4d Kirill A. Shutemov
2017-03-13  5:50   ` Kirill A. Shutemov
2017-03-13  5:50 ` [PATCH 12/26] x86: convert the rest of the code to support p4d_t Kirill A. Shutemov
2017-03-13  5:50   ` Kirill A. Shutemov
2017-03-13  5:50 ` [PATCH 13/26] x86: detect 5-level paging support Kirill A. Shutemov
2017-03-13  5:50   ` Kirill A. Shutemov
2017-03-13  5:50 ` [PATCH 14/26] x86/asm: remove __VIRTUAL_MASK_SHIFT==47 assert Kirill A. Shutemov
2017-03-13  5:50   ` Kirill A. Shutemov
2017-03-13  5:50 ` [PATCH 15/26] x86/mm: define virtual memory map for 5-level paging Kirill A. Shutemov
2017-03-13  5:50   ` Kirill A. Shutemov
2017-03-13  5:50 ` [PATCH 16/26] x86/paravirt: make paravirt code support " Kirill A. Shutemov
2017-03-13  5:50   ` Kirill A. Shutemov
2017-03-13  5:50 ` [PATCH 17/26] x86/mm: basic defines/helpers for CONFIG_X86_5LEVEL Kirill A. Shutemov
2017-03-13  5:50   ` Kirill A. Shutemov
2017-03-13  5:50 ` [PATCH 18/26] x86/dump_pagetables: support 5-level paging Kirill A. Shutemov
2017-03-13  5:50   ` Kirill A. Shutemov
2017-03-13  5:50 ` [PATCH 19/26] x86/kasan: extend to " Kirill A. Shutemov
2017-03-13  5:50   ` Kirill A. Shutemov
2017-03-13  7:25   ` Dmitry Vyukov
2017-03-13  7:25     ` Dmitry Vyukov
2017-03-13  5:50 ` [PATCH 20/26] x86/espfix: " Kirill A. Shutemov
2017-03-13  5:50   ` Kirill A. Shutemov
2017-03-13  5:50 ` [PATCH 21/26] x86/mm: add support of additional page table level during early boot Kirill A. Shutemov
2017-03-13  5:50   ` Kirill A. Shutemov
2017-03-13  7:18   ` Ingo Molnar
2017-03-13  7:18     ` Ingo Molnar
2017-04-05 11:36     ` Kirill A. Shutemov
2017-04-05 11:36       ` Kirill A. Shutemov
2017-04-05 15:32       ` Kirill A. Shutemov
2017-04-05 15:32         ` Kirill A. Shutemov
2017-03-13  5:50 ` [PATCH 22/26] x86/mm: add sync_global_pgds() for configuration with 5-level paging Kirill A. Shutemov
2017-03-13  5:50   ` Kirill A. Shutemov
2017-03-13  7:22   ` Ingo Molnar [this message]
2017-03-13  7:22     ` Ingo Molnar
2017-03-13  5:50 ` [PATCH 23/26] x86/mm: make kernel_physical_mapping_init() support " Kirill A. Shutemov
2017-03-13  5:50   ` Kirill A. Shutemov
2017-03-13  5:50 ` [PATCH 24/26] x86/mm: add support for 5-level paging for KASLR Kirill A. Shutemov
2017-03-13  5:50   ` Kirill A. Shutemov
2017-03-13  5:50 ` [PATCH 25/26] x86: enable 5-level paging support Kirill A. Shutemov
2017-03-13  5:50   ` Kirill A. Shutemov
2017-03-13  5:50 ` [PATCH 26/26] x86/mm: allow to have userspace mappings above 47-bits Kirill A. Shutemov
2017-03-13  5:50   ` Kirill A. Shutemov
2017-03-17 17:53   ` Aneesh Kumar K.V
2017-03-17 17:53     ` Aneesh Kumar K.V
2017-03-17 17:53     ` Aneesh Kumar K.V
2017-03-17 17:53     ` Aneesh Kumar K.V
2017-03-17 17:57     ` Kirill A. Shutemov
2017-03-17 17:57       ` Kirill A. Shutemov
2017-03-19  8:24       ` Aneesh Kumar K.V
2017-03-19  8:24         ` Aneesh Kumar K.V
2017-03-19  8:26         ` Kirill A. Shutemov
2017-03-20 18:08           ` hpa
2017-03-20 18:08             ` hpa
2017-03-20 18:38             ` Matthew Wilcox
2017-03-20 18:38               ` Matthew Wilcox
2017-03-24  8:59             ` Kirill A. Shutemov
2017-03-24  8:59               ` Kirill A. Shutemov
2017-03-19  8:55         ` Aneesh Kumar K.V
2017-03-19  8:55           ` Aneesh Kumar K.V
2017-03-24  9:03           ` Kirill A. Shutemov
2017-03-24  9:03             ` Kirill A. Shutemov
2017-03-20  9:15         ` Michael Ellerman
2017-03-20  9:15           ` Michael Ellerman
2017-03-20  5:10   ` Aneesh Kumar K.V
2017-03-20  5:10     ` Aneesh Kumar K.V
2017-03-20  5:10     ` Aneesh Kumar K.V
2017-03-20  5:10     ` Aneesh Kumar K.V
2017-03-24  9:04     ` Kirill A. Shutemov
2017-03-24  9:04       ` Kirill A. Shutemov
2017-03-24  9:14       ` Aneesh Kumar K.V
2017-03-24  9:14         ` Aneesh Kumar K.V
2017-03-24  9:30         ` Kirill A. Shutemov
2017-03-24  9:30           ` Kirill A. Shutemov
2017-03-13  7:49 ` [PATCH 00/26] x86: 5-level paging enabling for v4.12 Ingo Molnar
2017-03-13  7:49   ` Ingo Molnar

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