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From: Dave Hansen <dave.hansen@intel.com>
To: Gerald Schaefer <gerald.schaefer@linux.ibm.com>,
	Jason Gunthorpe <jgg@ziepe.ca>,
	John Hubbard <jhubbard@nvidia.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
	linux-mm <linux-mm@kvack.org>,
	linux-arch <linux-arch@vger.kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Russell King <linux@armlinux.org.uk>,
	Mike Rapoport <rppt@kernel.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>, Jeff Dike <jdike@addtoit.com>,
	Richard Weinberger <richard@nod.at>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	Andy Lutomirski <luto@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	Arnd Bergmann <arnd@arndb.de>,
	Andrey Ryabinin <aryabinin@virtuozzo.com>,
	linux-x86 <x86@kernel.org>,
	linux-arm <linux-arm-kernel@lists.infradead.org>,
	linux-power <linuxppc-dev@lists.ozlabs.org>,
	linux-sparc <sparclinux@vger.kernel.org>,
	linux-um <linux-um@lists.infradead.org>,
	linux-s390 <linux-s390@vger.kernel.org>,
	Alexander Gordeev <agordeev@linux.ibm.com>,
	Vasily Gorbik <gor@linux.ibm.com>,
	Heiko Carstens <hca@linux.ibm.com>,
	Christian Borntraeger <borntraeger@de.ibm.com>,
	Claudio Imbrenda <imbrenda@linux.ibm.com>
Subject: Re: [RFC PATCH v2 1/3] mm/gup: fix gup_fast with dynamic page table folding
Date: Tue, 8 Sep 2020 07:30:50 -0700	[thread overview]
Message-ID: <0dbc6ec8-45ea-0853-4856-2bc1e661a5a5@intel.com> (raw)
In-Reply-To: <20200907180058.64880-2-gerald.schaefer@linux.ibm.com>

On 9/7/20 11:00 AM, Gerald Schaefer wrote:
> Commit 1a42010cdc26 ("s390/mm: convert to the generic get_user_pages_fast
> code") introduced a subtle but severe bug on s390 with gup_fast, due to
> dynamic page table folding.

Would it be fair to say that the "fake" page table entries s390
allocates on the stack are what's causing the trouble here?  That might
be a nice thing to open up with here.  "Dynamic page table folding"
really means nothing to me.

> @@ -2521,7 +2521,7 @@ static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end,
>  	do {
>  		pmd_t pmd = READ_ONCE(*pmdp);
>  
> -		next = pmd_addr_end(addr, end);
> +		next = pmd_addr_end_folded(pmd, addr, end);
>  		if (!pmd_present(pmd))
>  			return 0;

It looks like you fix this up later, but this would be a problem if left
this way.  There's no documentation for whether I use
pmd_addr_end_folded() or pmd_addr_end() when writing a page table walker.


WARNING: multiple messages have this Message-ID (diff)
From: Dave Hansen <dave.hansen@intel.com>
To: Gerald Schaefer <gerald.schaefer@linux.ibm.com>,
	Jason Gunthorpe <jgg@ziepe.ca>,
	John Hubbard <jhubbard@nvidia.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	linux-mm <linux-mm@kvack.org>, Paul Mackerras <paulus@samba.org>,
	linux-sparc <sparclinux@vger.kernel.org>,
	Alexander Gordeev <agordeev@linux.ibm.com>,
	Claudio Imbrenda <imbrenda@linux.ibm.com>,
	Will Deacon <will@kernel.org>,
	linux-arch <linux-arch@vger.kernel.org>,
	linux-s390 <linux-s390@vger.kernel.org>,
	Vasily Gorbik <gor@linux.ibm.com>,
	Richard Weinberger <richard@nod.at>, linux-x86 <x86@kernel.org>,
	Russell King <linux@armlinux.org.uk>,
	Christian Borntraeger <borntraeger@de.ibm.com>,
	Ingo Molnar <mingo@redhat.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Andrey Ryabinin <aryabinin@virtuozzo.com>,
	Heiko Carstens <hca@linux.ibm.com>, Arnd Bergmann <arnd@arndb.de>,
	Jeff Dike <jdike@addtoit.com>,
	linux-um <linux-um@lists.infradead.org>,
	Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	linux-arm <linux-arm-kernel@lists.infradead.org>,
	linux-power <linuxppc-dev@lists.ozlabs.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Mike Rapoport <rppt@kernel.org>
Subject: Re: [RFC PATCH v2 1/3] mm/gup: fix gup_fast with dynamic page table folding
Date: Tue, 8 Sep 2020 07:30:50 -0700	[thread overview]
Message-ID: <0dbc6ec8-45ea-0853-4856-2bc1e661a5a5@intel.com> (raw)
In-Reply-To: <20200907180058.64880-2-gerald.schaefer@linux.ibm.com>

On 9/7/20 11:00 AM, Gerald Schaefer wrote:
> Commit 1a42010cdc26 ("s390/mm: convert to the generic get_user_pages_fast
> code") introduced a subtle but severe bug on s390 with gup_fast, due to
> dynamic page table folding.

Would it be fair to say that the "fake" page table entries s390
allocates on the stack are what's causing the trouble here?  That might
be a nice thing to open up with here.  "Dynamic page table folding"
really means nothing to me.

> @@ -2521,7 +2521,7 @@ static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end,
>  	do {
>  		pmd_t pmd = READ_ONCE(*pmdp);
>  
> -		next = pmd_addr_end(addr, end);
> +		next = pmd_addr_end_folded(pmd, addr, end);
>  		if (!pmd_present(pmd))
>  			return 0;

It looks like you fix this up later, but this would be a problem if left
this way.  There's no documentation for whether I use
pmd_addr_end_folded() or pmd_addr_end() when writing a page table walker.


WARNING: multiple messages have this Message-ID (diff)
From: Dave Hansen <dave.hansen@intel.com>
To: Gerald Schaefer <gerald.schaefer@linux.ibm.com>,
	Jason Gunthorpe <jgg@ziepe.ca>,
	John Hubbard <jhubbard@nvidia.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	linux-mm <linux-mm@kvack.org>, Paul Mackerras <paulus@samba.org>,
	linux-sparc <sparclinux@vger.kernel.org>,
	Alexander Gordeev <agordeev@linux.ibm.com>,
	Claudio Imbrenda <imbrenda@linux.ibm.com>,
	Will Deacon <will@kernel.org>,
	linux-arch <linux-arch@vger.kernel.org>,
	linux-s390 <linux-s390@vger.kernel.org>,
	Vasily Gorbik <gor@linux.ibm.com>,
	Richard Weinberger <richard@nod.at>, linux-x86 <x86@kernel.org>,
	Russell King <linux@armlinux.org.uk>,
	Christian Borntraeger <borntraeger@de.ibm.com>,
	Ingo Molnar <mingo@redhat.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Andrey Ryabinin <aryabinin@virtuozzo.com>,
	Heiko Carstens <hca@linux.ibm.com>, Arnd Bergmann <arnd@arndb.de>,
	Jeff Dike <jdike@addtoit.com>,
	linux-um <linux-um@lists.infradead.org>,
	Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	linux-arm <linux-arm-kernel@lists.infradead.org>,
	linux-power <linuxppc-dev@lists.ozlabs.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Mike Rapoport <rppt@kernel.org>
Subject: Re: [RFC PATCH v2 1/3] mm/gup: fix gup_fast with dynamic page table folding
Date: Tue, 8 Sep 2020 07:30:50 -0700	[thread overview]
Message-ID: <0dbc6ec8-45ea-0853-4856-2bc1e661a5a5@intel.com> (raw)
In-Reply-To: <20200907180058.64880-2-gerald.schaefer@linux.ibm.com>

On 9/7/20 11:00 AM, Gerald Schaefer wrote:
> Commit 1a42010cdc26 ("s390/mm: convert to the generic get_user_pages_fast
> code") introduced a subtle but severe bug on s390 with gup_fast, due to
> dynamic page table folding.

Would it be fair to say that the "fake" page table entries s390
allocates on the stack are what's causing the trouble here?  That might
be a nice thing to open up with here.  "Dynamic page table folding"
really means nothing to me.

> @@ -2521,7 +2521,7 @@ static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end,
>  	do {
>  		pmd_t pmd = READ_ONCE(*pmdp);
>  
> -		next = pmd_addr_end(addr, end);
> +		next = pmd_addr_end_folded(pmd, addr, end);
>  		if (!pmd_present(pmd))
>  			return 0;

It looks like you fix this up later, but this would be a problem if left
this way.  There's no documentation for whether I use
pmd_addr_end_folded() or pmd_addr_end() when writing a page table walker.


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

WARNING: multiple messages have this Message-ID (diff)
From: Dave Hansen <dave.hansen@intel.com>
To: Gerald Schaefer <gerald.schaefer@linux.ibm.com>,
	Jason Gunthorpe <jgg@ziepe.ca>,
	John Hubbard <jhubbard@nvidia.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	linux-mm <linux-mm@kvack.org>, Paul Mackerras <paulus@samba.org>,
	linux-sparc <sparclinux@vger.kernel.org>,
	Alexander Gordeev <agordeev@linux.ibm.com>,
	Claudio Imbrenda <imbrenda@linux.ibm.com>,
	Will Deacon <will@kernel.org>,
	linux-arch <linux-arch@vger.kernel.org>,
	linux-s390 <linux-s390@vger.kernel.org>,
	Vasily Gorbik <gor@linux.ibm.com>,
	Richard Weinberger <richard@nod.at>, linux-x86 <x86@kernel.org>,
	Russell King <linux@armlinux.org.uk>,
	Christian Borntraeger <borntraeger@de.ibm.com>,
	Ingo Molnar <mingo@redhat.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Andrey Ryabinin <aryabinin@virtuozzo.com>,
	Heiko Carstens <hca@linux.ibm.com>, Arnd Bergmann <arnd@arndb.de>,
	Jeff Dike <jdike@addtoit.com>,
	linux-um <linux-um@lists.infradead.org>,
	Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	linux-arm <linux-arm-kernel@lists.infradead.org>,
	linux-power <linuxppc-dev@lists.ozlabs.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Mike Rapoport <rppt@kernel.org>
Subject: Re: [RFC PATCH v2 1/3] mm/gup: fix gup_fast with dynamic page table folding
Date: Tue, 8 Sep 2020 07:30:50 -0700	[thread overview]
Message-ID: <0dbc6ec8-45ea-0853-4856-2bc1e661a5a5@intel.com> (raw)
In-Reply-To: <20200907180058.64880-2-gerald.schaefer@linux.ibm.com>

On 9/7/20 11:00 AM, Gerald Schaefer wrote:
> Commit 1a42010cdc26 ("s390/mm: convert to the generic get_user_pages_fast
> code") introduced a subtle but severe bug on s390 with gup_fast, due to
> dynamic page table folding.

Would it be fair to say that the "fake" page table entries s390
allocates on the stack are what's causing the trouble here?  That might
be a nice thing to open up with here.  "Dynamic page table folding"
really means nothing to me.

> @@ -2521,7 +2521,7 @@ static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end,
>  	do {
>  		pmd_t pmd = READ_ONCE(*pmdp);
>  
> -		next = pmd_addr_end(addr, end);
> +		next = pmd_addr_end_folded(pmd, addr, end);
>  		if (!pmd_present(pmd))
>  			return 0;

It looks like you fix this up later, but this would be a problem if left
this way.  There's no documentation for whether I use
pmd_addr_end_folded() or pmd_addr_end() when writing a page table walker.


_______________________________________________
linux-um mailing list
linux-um@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-um


  parent reply	other threads:[~2020-09-08 20:01 UTC|newest]

Thread overview: 313+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-07 18:00 [RFC PATCH v2 0/3] mm/gup: fix gup_fast with dynamic page table folding Gerald Schaefer
2020-09-07 18:00 ` Gerald Schaefer
2020-09-07 18:00 ` Gerald Schaefer
2020-09-07 18:00 ` Gerald Schaefer
2020-09-07 18:00 ` Gerald Schaefer
2020-09-07 18:00 ` [RFC PATCH v2 1/3] " Gerald Schaefer
2020-09-07 18:00   ` Gerald Schaefer
2020-09-07 18:00   ` Gerald Schaefer
2020-09-07 18:00   ` Gerald Schaefer
2020-09-07 18:00   ` Gerald Schaefer
2020-09-08  5:06   ` Christophe Leroy
2020-09-08  5:06     ` Christophe Leroy
2020-09-08  5:06     ` Christophe Leroy
2020-09-08  5:06     ` Christophe Leroy
2020-09-08  5:06     ` Christophe Leroy
2020-09-08 12:09     ` Christian Borntraeger
2020-09-08 12:09       ` Christian Borntraeger
2020-09-08 12:09       ` Christian Borntraeger
2020-09-08 12:09       ` Christian Borntraeger
2020-09-08 12:09       ` Christian Borntraeger
2020-09-08 12:40       ` Christophe Leroy
2020-09-08 12:40         ` Christophe Leroy
2020-09-08 12:40         ` Christophe Leroy
2020-09-08 12:40         ` Christophe Leroy
2020-09-08 12:40         ` Christophe Leroy
2020-09-08 13:38         ` Gerald Schaefer
2020-09-08 13:38           ` Gerald Schaefer
2020-09-08 13:38           ` Gerald Schaefer
2020-09-08 13:38           ` Gerald Schaefer
2020-09-08 13:38           ` Gerald Schaefer
2020-09-08 14:30   ` Dave Hansen [this message]
2020-09-08 14:30     ` Dave Hansen
2020-09-08 14:30     ` Dave Hansen
2020-09-08 14:30     ` Dave Hansen
2020-09-08 17:59     ` Gerald Schaefer
2020-09-08 17:59       ` Gerald Schaefer
2020-09-08 17:59       ` Gerald Schaefer
2020-09-08 17:59       ` Gerald Schaefer
2020-09-08 17:59       ` Gerald Schaefer
2020-09-09 12:29     ` Gerald Schaefer
2020-09-09 12:29       ` Gerald Schaefer
2020-09-09 12:29       ` Gerald Schaefer
2020-09-09 12:29       ` Gerald Schaefer
2020-09-09 12:29       ` Gerald Schaefer
2020-09-09 16:18       ` Dave Hansen
2020-09-09 16:18         ` Dave Hansen
2020-09-09 16:18         ` Dave Hansen
2020-09-09 16:18         ` Dave Hansen
2020-09-09 16:18         ` Dave Hansen
2020-09-09 17:25         ` Gerald Schaefer
2020-09-09 17:25           ` Gerald Schaefer
2020-09-09 17:25           ` Gerald Schaefer
2020-09-09 17:25           ` Gerald Schaefer
2020-09-09 17:25           ` Gerald Schaefer
2020-09-09 18:03           ` Jason Gunthorpe
2020-09-09 18:03             ` Jason Gunthorpe
2020-09-09 18:03             ` Jason Gunthorpe
2020-09-09 18:03             ` Jason Gunthorpe
2020-09-09 18:03             ` Jason Gunthorpe
2020-09-10  9:39             ` Alexander Gordeev
2020-09-10  9:39               ` Alexander Gordeev
2020-09-10  9:39               ` Alexander Gordeev
2020-09-10  9:39               ` Alexander Gordeev
2020-09-10  9:39               ` Alexander Gordeev
2020-09-10 13:02               ` Jason Gunthorpe
2020-09-10 13:02                 ` Jason Gunthorpe
2020-09-10 13:02                 ` Jason Gunthorpe
2020-09-10 13:02                 ` Jason Gunthorpe
2020-09-10 13:02                 ` Jason Gunthorpe
2020-09-10 13:28                 ` Gerald Schaefer
2020-09-10 13:28                   ` Gerald Schaefer
2020-09-10 13:28                   ` Gerald Schaefer
2020-09-10 13:28                   ` Gerald Schaefer
2020-09-10 13:28                   ` Gerald Schaefer
2020-09-10 15:10                   ` Jason Gunthorpe
2020-09-10 15:10                     ` Jason Gunthorpe
2020-09-10 15:10                     ` Jason Gunthorpe
2020-09-10 15:10                     ` Jason Gunthorpe
2020-09-10 15:10                     ` Jason Gunthorpe
2020-09-10 17:07                     ` Gerald Schaefer
2020-09-10 17:07                       ` Gerald Schaefer
2020-09-10 17:07                       ` Gerald Schaefer
2020-09-10 17:07                       ` Gerald Schaefer
2020-09-10 17:07                       ` Gerald Schaefer
2020-09-10 17:19                       ` Jason Gunthorpe
2020-09-10 17:19                         ` Jason Gunthorpe
2020-09-10 17:19                         ` Jason Gunthorpe
2020-09-10 17:19                         ` Jason Gunthorpe
2020-09-10 17:19                         ` Jason Gunthorpe
2020-09-10 17:57                 ` Gerald Schaefer
2020-09-10 17:57                   ` Gerald Schaefer
2020-09-10 17:57                   ` Gerald Schaefer
2020-09-10 17:57                   ` Gerald Schaefer
2020-09-10 17:57                   ` Gerald Schaefer
2020-09-10 23:21                   ` Jason Gunthorpe
2020-09-10 23:21                     ` Jason Gunthorpe
2020-09-10 23:21                     ` Jason Gunthorpe
2020-09-10 23:21                     ` Jason Gunthorpe
2020-09-10 23:21                     ` Jason Gunthorpe
2020-09-10 17:35               ` Linus Torvalds
2020-09-10 17:35                 ` Linus Torvalds
2020-09-10 17:35                 ` Linus Torvalds
2020-09-10 17:35                 ` Linus Torvalds
2020-09-10 17:35                 ` Linus Torvalds
2020-09-10 17:35                 ` Linus Torvalds
2020-09-10 18:13                 ` Jason Gunthorpe
2020-09-10 18:13                   ` Jason Gunthorpe
2020-09-10 18:13                   ` Jason Gunthorpe
2020-09-10 18:13                   ` Jason Gunthorpe
2020-09-10 18:13                   ` Jason Gunthorpe
2020-09-10 18:33                   ` Linus Torvalds
2020-09-10 18:33                     ` Linus Torvalds
2020-09-10 18:33                     ` Linus Torvalds
2020-09-10 18:33                     ` Linus Torvalds
2020-09-10 18:33                     ` Linus Torvalds
2020-09-10 19:10                     ` Gerald Schaefer
2020-09-10 19:10                       ` Gerald Schaefer
2020-09-10 19:10                       ` Gerald Schaefer
2020-09-10 19:10                       ` Gerald Schaefer
2020-09-10 19:10                       ` Gerald Schaefer
2020-09-10 19:32                       ` Linus Torvalds
2020-09-10 19:32                         ` Linus Torvalds
2020-09-10 19:32                         ` Linus Torvalds
2020-09-10 19:32                         ` Linus Torvalds
2020-09-10 19:32                         ` Linus Torvalds
2020-09-10 21:59                         ` Jason Gunthorpe
2020-09-10 21:59                           ` Jason Gunthorpe
2020-09-10 21:59                           ` Jason Gunthorpe
2020-09-10 21:59                           ` Jason Gunthorpe
2020-09-10 21:59                           ` Jason Gunthorpe
2020-09-11  7:09                           ` peterz
2020-09-11  7:09                             ` peterz
2020-09-11  7:09                             ` peterz
2020-09-11  7:09                             ` peterz
2020-09-11  7:09                             ` peterz
2020-09-11 11:19                             ` Jason Gunthorpe
2020-09-11 11:19                               ` Jason Gunthorpe
2020-09-11 11:19                               ` Jason Gunthorpe
2020-09-11 11:19                               ` Jason Gunthorpe
2020-09-11 11:19                               ` Jason Gunthorpe
2020-09-11 19:03                             ` [PATCH] " Vasily Gorbik
2020-09-11 19:03                               ` Vasily Gorbik
2020-09-11 19:03                               ` Vasily Gorbik
2020-09-11 19:03                               ` Vasily Gorbik
2020-09-11 19:03                               ` Vasily Gorbik
2020-09-11 19:09                               ` Linus Torvalds
2020-09-11 19:09                                 ` Linus Torvalds
2020-09-11 19:09                                 ` Linus Torvalds
2020-09-11 19:09                                 ` Linus Torvalds
2020-09-11 19:09                                 ` Linus Torvalds
2020-09-11 19:40                               ` Jason Gunthorpe
2020-09-11 19:40                                 ` Jason Gunthorpe
2020-09-11 19:40                                 ` Jason Gunthorpe
2020-09-11 19:40                                 ` Jason Gunthorpe
2020-09-11 19:40                                 ` Jason Gunthorpe
2020-09-11 20:05                                 ` Jason Gunthorpe
2020-09-11 20:05                                   ` Jason Gunthorpe
2020-09-11 20:05                                   ` Jason Gunthorpe
2020-09-11 20:05                                   ` Jason Gunthorpe
2020-09-11 20:05                                   ` Jason Gunthorpe
2020-09-11 20:36                                   ` [PATCH v2] " Vasily Gorbik
2020-09-11 20:36                                     ` Vasily Gorbik
2020-09-11 20:36                                     ` Vasily Gorbik
2020-09-11 20:36                                     ` Vasily Gorbik
2020-09-11 20:36                                     ` Vasily Gorbik
2020-09-15 17:09                                     ` Vasily Gorbik
2020-09-15 17:09                                       ` Vasily Gorbik
2020-09-15 17:09                                       ` Vasily Gorbik
2020-09-15 17:09                                       ` Vasily Gorbik
2020-09-15 17:09                                       ` Vasily Gorbik
2020-09-15 17:14                                     ` Jason Gunthorpe
2020-09-15 17:14                                       ` Jason Gunthorpe
2020-09-15 17:14                                       ` Jason Gunthorpe
2020-09-15 17:14                                       ` Jason Gunthorpe
2020-09-15 17:14                                       ` Jason Gunthorpe
2020-09-15 17:18                                     ` Mike Rapoport
2020-09-15 17:18                                       ` Mike Rapoport
2020-09-15 17:18                                       ` Mike Rapoport
2020-09-15 17:18                                       ` Mike Rapoport
2020-09-15 17:18                                       ` Mike Rapoport
2020-09-15 17:31                                     ` John Hubbard
2020-09-15 17:31                                       ` John Hubbard
2020-09-15 17:31                                       ` John Hubbard
2020-09-15 17:31                                       ` John Hubbard
2020-09-15 17:31                                       ` John Hubbard
2020-09-17 15:53                                     ` Sasha Levin
2020-09-18 15:15                                       ` Vasily Gorbik
2020-09-18 15:15                                         ` [PATCH stable-5.4.y backport] " Vasily Gorbik
2020-09-10 21:22                   ` [RFC PATCH v2 1/3] " John Hubbard
2020-09-10 21:22                     ` John Hubbard
2020-09-10 21:22                     ` John Hubbard
2020-09-10 21:22                     ` John Hubbard
2020-09-10 21:22                     ` John Hubbard
2020-09-10 22:11                     ` Jason Gunthorpe
2020-09-10 22:11                       ` Jason Gunthorpe
2020-09-10 22:11                       ` Jason Gunthorpe
2020-09-10 22:11                       ` Jason Gunthorpe
2020-09-10 22:11                       ` Jason Gunthorpe
2020-09-10 22:17                       ` John Hubbard
2020-09-10 22:17                         ` John Hubbard
2020-09-10 22:17                         ` John Hubbard
2020-09-10 22:17                         ` John Hubbard
2020-09-10 22:17                         ` John Hubbard
2020-09-11 12:19                       ` Alexander Gordeev
2020-09-11 12:19                         ` Alexander Gordeev
2020-09-11 12:19                         ` Alexander Gordeev
2020-09-11 12:19                         ` Alexander Gordeev
2020-09-11 12:19                         ` Alexander Gordeev
2020-09-11 16:45                         ` Linus Torvalds
2020-09-11 16:45                           ` Linus Torvalds
2020-09-11 16:45                           ` Linus Torvalds
2020-09-11 16:45                           ` Linus Torvalds
2020-09-11 16:45                           ` Linus Torvalds
2020-09-10 13:11             ` Gerald Schaefer
2020-09-10 13:11               ` Gerald Schaefer
2020-09-10 13:11               ` Gerald Schaefer
2020-09-10 13:11               ` Gerald Schaefer
2020-09-10 13:11               ` Gerald Schaefer
2020-09-07 18:00 ` [RFC PATCH v2 2/3] mm: make pXd_addr_end() functions page-table entry aware Gerald Schaefer
2020-09-07 18:00   ` Gerald Schaefer
2020-09-07 18:00   ` Gerald Schaefer
2020-09-07 18:00   ` Gerald Schaefer
2020-09-07 18:00   ` Gerald Schaefer
2020-09-08  5:14   ` Christophe Leroy
2020-09-08  5:14     ` Christophe Leroy
2020-09-08  5:14     ` Christophe Leroy
2020-09-08  5:14     ` Christophe Leroy
2020-09-08  5:14     ` Christophe Leroy
2020-09-08  7:46     ` Alexander Gordeev
2020-09-08  7:46       ` Alexander Gordeev
2020-09-08  7:46       ` Alexander Gordeev
2020-09-08  7:46       ` Alexander Gordeev
2020-09-08  7:46       ` Alexander Gordeev
2020-09-08  8:16       ` Christophe Leroy
2020-09-08  8:16         ` Christophe Leroy
2020-09-08  8:16         ` Christophe Leroy
2020-09-08  8:16         ` Christophe Leroy
2020-09-08  8:16         ` Christophe Leroy
2020-09-08 14:15         ` Alexander Gordeev
2020-09-08 14:15           ` Alexander Gordeev
2020-09-08 14:15           ` Alexander Gordeev
2020-09-08 14:15           ` Alexander Gordeev
2020-09-08 14:15           ` Alexander Gordeev
2020-09-09  8:38           ` Christophe Leroy
2020-09-09  8:38             ` Christophe Leroy
2020-09-09  8:38             ` Christophe Leroy
2020-09-09  8:38             ` Christophe Leroy
2020-09-09  8:38             ` Christophe Leroy
2020-09-08 14:25     ` Alexander Gordeev
2020-09-08 14:25       ` Alexander Gordeev
2020-09-08 14:25       ` Alexander Gordeev
2020-09-08 14:25       ` Alexander Gordeev
2020-09-08 14:25       ` Alexander Gordeev
2020-09-08 13:26   ` Jason Gunthorpe
2020-09-08 13:26     ` Jason Gunthorpe
2020-09-08 13:26     ` Jason Gunthorpe
2020-09-08 13:26     ` Jason Gunthorpe
2020-09-08 13:26     ` Jason Gunthorpe
2020-09-08 14:33   ` Dave Hansen
2020-09-08 14:33     ` Dave Hansen
2020-09-08 14:33     ` Dave Hansen
2020-09-08 14:33     ` Dave Hansen
2020-09-07 18:00 ` [RFC PATCH v2 3/3] mm: make generic pXd_addr_end() macros inline functions Gerald Schaefer
2020-09-07 18:00   ` Gerald Schaefer
2020-09-07 18:00   ` Gerald Schaefer
2020-09-07 18:00   ` Gerald Schaefer
2020-09-07 18:00   ` Gerald Schaefer
2020-09-07 20:15   ` Mike Rapoport
2020-09-07 20:15     ` Mike Rapoport
2020-09-07 20:15     ` Mike Rapoport
2020-09-07 20:15     ` Mike Rapoport
2020-09-07 20:15     ` Mike Rapoport
2020-09-08  5:19   ` Christophe Leroy
2020-09-08  5:19     ` Christophe Leroy
2020-09-08  5:19     ` Christophe Leroy
2020-09-08  5:19     ` Christophe Leroy
2020-09-08  5:19     ` Christophe Leroy
2020-09-08 15:48     ` Alexander Gordeev
2020-09-08 15:48       ` Alexander Gordeev
2020-09-08 15:48       ` Alexander Gordeev
2020-09-08 15:48       ` Alexander Gordeev
2020-09-08 15:48       ` Alexander Gordeev
2020-09-08 17:20       ` Christophe Leroy
2020-09-08 17:20         ` Christophe Leroy
2020-09-08 17:20         ` Christophe Leroy
2020-09-08 17:20         ` Christophe Leroy
2020-09-08 17:20         ` Christophe Leroy
2020-09-08 16:05   ` kernel test robot
2020-09-07 20:12 ` [RFC PATCH v2 0/3] mm/gup: fix gup_fast with dynamic page table folding Mike Rapoport
2020-09-07 20:12   ` Mike Rapoport
2020-09-07 20:12   ` Mike Rapoport
2020-09-07 20:12   ` Mike Rapoport
2020-09-07 20:12   ` Mike Rapoport
2020-09-08  5:22   ` Christophe Leroy
2020-09-08  5:22     ` Christophe Leroy
2020-09-08  5:22     ` Christophe Leroy
2020-09-08  5:22     ` Christophe Leroy
2020-09-08  5:22     ` Christophe Leroy
2020-09-08 17:36     ` Gerald Schaefer
2020-09-08 17:36       ` Gerald Schaefer
2020-09-08 17:36       ` Gerald Schaefer
2020-09-08 17:36       ` Gerald Schaefer
2020-09-08 17:36       ` Gerald Schaefer
2020-09-09 16:12       ` Gerald Schaefer
2020-09-09 16:12         ` Gerald Schaefer
2020-09-09 16:12         ` Gerald Schaefer
2020-09-09 16:12         ` Gerald Schaefer
2020-09-09 16:12         ` Gerald Schaefer
2020-09-08  4:42 ` Christophe Leroy
2020-09-08  4:42   ` Christophe Leroy
2020-09-08  4:42   ` Christophe Leroy
2020-09-08  4:42   ` Christophe Leroy
2020-09-08  4:42   ` Christophe Leroy

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