From: David Hildenbrand <david@redhat.com>
To: linux-mm@kvack.org
Cc: linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-m68k@lists.linux-m68k.org, linuxppc-dev@lists.ozlabs.org,
linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org,
linux-mediatek@lists.infradead.org,
David Hildenbrand <david@redhat.com>,
Palmer Dabbelt <palmer@sifive.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Tobias Klauser <tklauser@distanz.ch>,
Andrew Morton <akpm@linux-foundation.org>,
Michal Hocko <mhocko@kernel.org>,
Matthew Wilcox <willy@infradead.org>
Subject: [PATCH v2 4/9] riscv/vdso: don't clear PG_reserved
Date: Mon, 14 Jan 2019 13:58:58 +0100 [thread overview]
Message-ID: <20190114125903.24845-5-david@redhat.com> (raw)
In-Reply-To: <20190114125903.24845-1-david@redhat.com>
The VDSO is part of the kernel image and therefore the struct pages are
marked as reserved during boot.
As we install a special mapping, the actual struct pages will never be
exposed to MM via the page tables. We can therefore leave the pages
marked as reserved.
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Tobias Klauser <tklauser@distanz.ch>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Matthew Wilcox <willy@infradead.org>
Acked-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
arch/riscv/kernel/vdso.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/riscv/kernel/vdso.c b/arch/riscv/kernel/vdso.c
index 582cb153eb24..0cd044122234 100644
--- a/arch/riscv/kernel/vdso.c
+++ b/arch/riscv/kernel/vdso.c
@@ -54,7 +54,6 @@ static int __init vdso_init(void)
struct page *pg;
pg = virt_to_page(vdso_start + (i << PAGE_SHIFT));
- ClearPageReserved(pg);
vdso_pagelist[i] = pg;
}
vdso_pagelist[i] = virt_to_page(vdso_data);
--
2.17.2
WARNING: multiple messages have this Message-ID (diff)
From: David Hildenbrand <david@redhat.com>
To: linux-mm@kvack.org
Cc: linux-s390@vger.kernel.org, Albert Ou <aou@eecs.berkeley.edu>,
Andrew Morton <akpm@linux-foundation.org>,
David Hildenbrand <david@redhat.com>,
Palmer Dabbelt <palmer@sifive.com>,
linux-kernel@vger.kernel.org,
Matthew Wilcox <willy@infradead.org>,
Michal Hocko <mhocko@kernel.org>,
linux-m68k@lists.linux-m68k.org,
linux-mediatek@lists.infradead.org,
linux-riscv@lists.infradead.org, linuxppc-dev@lists.ozlabs.org,
Tobias Klauser <tklauser@distanz.ch>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 4/9] riscv/vdso: don't clear PG_reserved
Date: Mon, 14 Jan 2019 13:58:58 +0100 [thread overview]
Message-ID: <20190114125903.24845-5-david@redhat.com> (raw)
In-Reply-To: <20190114125903.24845-1-david@redhat.com>
The VDSO is part of the kernel image and therefore the struct pages are
marked as reserved during boot.
As we install a special mapping, the actual struct pages will never be
exposed to MM via the page tables. We can therefore leave the pages
marked as reserved.
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Tobias Klauser <tklauser@distanz.ch>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Matthew Wilcox <willy@infradead.org>
Acked-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
arch/riscv/kernel/vdso.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/riscv/kernel/vdso.c b/arch/riscv/kernel/vdso.c
index 582cb153eb24..0cd044122234 100644
--- a/arch/riscv/kernel/vdso.c
+++ b/arch/riscv/kernel/vdso.c
@@ -54,7 +54,6 @@ static int __init vdso_init(void)
struct page *pg;
pg = virt_to_page(vdso_start + (i << PAGE_SHIFT));
- ClearPageReserved(pg);
vdso_pagelist[i] = pg;
}
vdso_pagelist[i] = virt_to_page(vdso_data);
--
2.17.2
_______________________________________________
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: David Hildenbrand <david@redhat.com>
To: linux-mm@kvack.org
Cc: linux-s390@vger.kernel.org, Albert Ou <aou@eecs.berkeley.edu>,
Andrew Morton <akpm@linux-foundation.org>,
David Hildenbrand <david@redhat.com>,
Palmer Dabbelt <palmer@sifive.com>,
linux-kernel@vger.kernel.org,
Matthew Wilcox <willy@infradead.org>,
Michal Hocko <mhocko@kernel.org>,
linux-m68k@lists.linux-m68k.org,
linux-mediatek@lists.infradead.org,
linux-riscv@lists.infradead.org, linuxppc-dev@lists.ozlabs.org,
Tobias Klauser <tklauser@distanz.ch>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 4/9] riscv/vdso: don't clear PG_reserved
Date: Mon, 14 Jan 2019 13:58:58 +0100 [thread overview]
Message-ID: <20190114125903.24845-5-david@redhat.com> (raw)
In-Reply-To: <20190114125903.24845-1-david@redhat.com>
The VDSO is part of the kernel image and therefore the struct pages are
marked as reserved during boot.
As we install a special mapping, the actual struct pages will never be
exposed to MM via the page tables. We can therefore leave the pages
marked as reserved.
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Tobias Klauser <tklauser@distanz.ch>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Matthew Wilcox <willy@infradead.org>
Acked-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
arch/riscv/kernel/vdso.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/riscv/kernel/vdso.c b/arch/riscv/kernel/vdso.c
index 582cb153eb24..0cd044122234 100644
--- a/arch/riscv/kernel/vdso.c
+++ b/arch/riscv/kernel/vdso.c
@@ -54,7 +54,6 @@ static int __init vdso_init(void)
struct page *pg;
pg = virt_to_page(vdso_start + (i << PAGE_SHIFT));
- ClearPageReserved(pg);
vdso_pagelist[i] = pg;
}
vdso_pagelist[i] = virt_to_page(vdso_data);
--
2.17.2
_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
WARNING: multiple messages have this Message-ID (diff)
From: David Hildenbrand <david@redhat.com>
To: linux-mm@kvack.org
Cc: linux-s390@vger.kernel.org, Albert Ou <aou@eecs.berkeley.edu>,
Andrew Morton <akpm@linux-foundation.org>,
David Hildenbrand <david@redhat.com>,
Palmer Dabbelt <palmer@sifive.com>,
linux-kernel@vger.kernel.org,
Matthew Wilcox <willy@infradead.org>,
Michal Hocko <mhocko@kernel.org>,
linux-m68k@lists.linux-m68k.org,
linux-mediatek@lists.infradead.org,
linux-riscv@lists.infradead.org, linuxppc-dev@lists.ozlabs.org,
Tobias Klauser <tklauser@distanz.ch>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 4/9] riscv/vdso: don't clear PG_reserved
Date: Mon, 14 Jan 2019 13:58:58 +0100 [thread overview]
Message-ID: <20190114125903.24845-5-david@redhat.com> (raw)
In-Reply-To: <20190114125903.24845-1-david@redhat.com>
The VDSO is part of the kernel image and therefore the struct pages are
marked as reserved during boot.
As we install a special mapping, the actual struct pages will never be
exposed to MM via the page tables. We can therefore leave the pages
marked as reserved.
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Tobias Klauser <tklauser@distanz.ch>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Matthew Wilcox <willy@infradead.org>
Acked-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
arch/riscv/kernel/vdso.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/riscv/kernel/vdso.c b/arch/riscv/kernel/vdso.c
index 582cb153eb24..0cd044122234 100644
--- a/arch/riscv/kernel/vdso.c
+++ b/arch/riscv/kernel/vdso.c
@@ -54,7 +54,6 @@ static int __init vdso_init(void)
struct page *pg;
pg = virt_to_page(vdso_start + (i << PAGE_SHIFT));
- ClearPageReserved(pg);
vdso_pagelist[i] = pg;
}
vdso_pagelist[i] = virt_to_page(vdso_data);
--
2.17.2
next prev parent reply other threads:[~2019-01-14 12:59 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-14 12:58 [PATCH v2 0/9] mm: PG_reserved cleanups and documentation David Hildenbrand
2019-01-14 12:58 ` David Hildenbrand
2019-01-14 12:58 ` David Hildenbrand
2019-01-14 12:58 ` David Hildenbrand
2019-01-14 12:58 ` [PATCH v2 1/9] agp: efficeon: no need to set PG_reserved on GATT tables David Hildenbrand
2019-01-14 12:58 ` David Hildenbrand
2019-01-14 12:58 ` David Hildenbrand
2019-01-14 12:58 ` David Hildenbrand
2019-01-14 12:58 ` [PATCH v2 2/9] s390/vdso: don't clear PG_reserved David Hildenbrand
2019-01-14 12:58 ` David Hildenbrand
2019-01-14 12:58 ` David Hildenbrand
2019-01-14 12:58 ` David Hildenbrand
2019-01-14 12:58 ` [PATCH v2 3/9] powerpc/vdso: " David Hildenbrand
2019-01-14 12:58 ` David Hildenbrand
2019-01-14 12:58 ` David Hildenbrand
2019-01-14 12:58 ` David Hildenbrand
2019-01-14 12:58 ` David Hildenbrand [this message]
2019-01-14 12:58 ` [PATCH v2 4/9] riscv/vdso: " David Hildenbrand
2019-01-14 12:58 ` David Hildenbrand
2019-01-14 12:58 ` David Hildenbrand
2019-01-15 15:36 ` Christoph Hellwig
2019-01-15 15:36 ` Christoph Hellwig
2019-01-15 15:36 ` Christoph Hellwig
2019-01-15 15:36 ` Christoph Hellwig
2019-01-14 12:58 ` [PATCH v2 5/9] m68k/mm: use __ClearPageReserved() David Hildenbrand
2019-01-14 12:58 ` David Hildenbrand
2019-01-14 12:58 ` David Hildenbrand
2019-01-14 12:58 ` David Hildenbrand
2019-01-14 14:02 ` Geert Uytterhoeven
2019-01-14 14:02 ` Geert Uytterhoeven
2019-01-14 14:02 ` Geert Uytterhoeven
2019-01-14 14:02 ` Geert Uytterhoeven
2019-01-14 14:02 ` Geert Uytterhoeven
2019-01-14 12:59 ` [PATCH v2 6/9] arm64: kexec: no need to ClearPageReserved() David Hildenbrand
2019-01-14 12:59 ` David Hildenbrand
2019-01-14 12:59 ` David Hildenbrand
2019-01-14 12:59 ` David Hildenbrand
2019-01-14 15:50 ` Bhupesh Sharma
2019-01-14 15:50 ` Bhupesh Sharma
2019-01-14 15:50 ` Bhupesh Sharma
2019-01-14 15:50 ` Bhupesh Sharma
2019-01-14 15:50 ` Bhupesh Sharma
2019-01-25 16:25 ` Catalin Marinas
2019-01-25 16:25 ` Catalin Marinas
2019-01-25 16:25 ` Catalin Marinas
2019-01-25 16:25 ` Catalin Marinas
2019-01-14 12:59 ` [PATCH v2 7/9] arm64: kdump: No need to mark crashkernel pages manually PG_reserved David Hildenbrand
2019-01-14 12:59 ` David Hildenbrand
2019-01-14 12:59 ` David Hildenbrand
2019-01-14 12:59 ` David Hildenbrand
2019-01-14 12:59 ` David Hildenbrand
2019-01-14 15:52 ` Bhupesh Sharma
2019-01-14 15:52 ` Bhupesh Sharma
2019-01-14 15:52 ` Bhupesh Sharma
2019-01-14 15:52 ` Bhupesh Sharma
2019-01-14 15:52 ` Bhupesh Sharma
2019-01-14 15:52 ` Bhupesh Sharma
2019-01-25 16:28 ` Catalin Marinas
2019-01-25 16:28 ` Catalin Marinas
2019-01-25 16:28 ` Catalin Marinas
2019-01-25 16:28 ` Catalin Marinas
2019-01-25 16:28 ` Catalin Marinas
2019-01-14 12:59 ` [PATCH v2 8/9] ia64: perfmon: Don't mark buffer pages as PG_reserved David Hildenbrand
2019-01-14 12:59 ` David Hildenbrand
2019-01-14 12:59 ` David Hildenbrand
2019-01-14 12:59 ` David Hildenbrand
2019-01-14 12:59 ` [PATCH v2 9/9] mm: better document PG_reserved David Hildenbrand
2019-01-14 12:59 ` David Hildenbrand
2019-01-14 12:59 ` David Hildenbrand
2019-01-14 12:59 ` David Hildenbrand
2019-01-15 15:38 ` [PATCH v2 0/9] mm: PG_reserved cleanups and documentation Christoph Hellwig
2019-01-15 15:38 ` Christoph Hellwig
2019-01-15 15:38 ` Christoph Hellwig
2019-01-15 15:38 ` Christoph Hellwig
2019-01-15 15:53 ` David Hildenbrand
2019-01-15 15:53 ` David Hildenbrand
2019-01-15 15:53 ` David Hildenbrand
2019-01-15 15:53 ` David Hildenbrand
2019-01-21 11:36 ` David Hildenbrand
2019-01-21 11:36 ` David Hildenbrand
2019-01-21 11:36 ` David Hildenbrand
2019-01-21 11:36 ` David Hildenbrand
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