From: Christoph Hellwig <hch@infradead.org>
To: David Hildenbrand <david@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
Michal Hocko <mhocko@suse.com>,
CHANDAN VN <chandan.vn@samsung.com>,
David Airlie <airlied@linux.ie>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Bhupesh Sharma <bhsharma@redhat.com>,
Palmer Dabbelt <palmer@sifive.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
Stefan Agner <stefan@agner.ch>, Michal Hocko <mhocko@kernel.org>,
David Howells <dhowells@redhat.com>,
linux-mm@kvack.org, Paul Mackerras <paulus@samba.org>,
linux-riscv@lists.infradead.org,
Alexander Duyck <alexander.h.duyck@linux.intel.com>,
linux-s390@vger.kernel.org,
Florian Fainelli <f.fainelli@gmail.com>,
Arnd Bergmann <arnd@arndb.de>,
Michael Ellerman <mpe@ellerman.id.au>,
Pavel Tatashin <pasha.tatashin@oracle.com>,
Matthew Wilcox <willy@infradead.org>,
AKASHI Takahiro <takahiro.akashi@linaro.org>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Matthias Brugger <mbrugger@suse.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Anthony Yznaga <anthony.yznaga@oracle.com>,
Tobias Klauser <tklauser@distanz.ch>,
Laura Abbott <labbott@redhat.com>,
Fenghua Yu <fenghua.yu@intel.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Kees Cook <keescook@chromium.org>,
Vasily Gorbik <gor@linux.ibm.com>,
Stephen Rothwell <sfr@canb.auug.org.au>,
Marc Zyngier <marc.zyngier@arm.com>,
Will Deacon <will.deacon@arm.com>,
linuxppc-dev@lists.ozlabs.org,
Kristina Martsenko <kristina.martsenko@arm.com>,
linux-m68k@lists.linux-m68k.org,
Dave Kleikamp <dave.kleikamp@oracle.com>,
linux-mediatek@lists.infradead.org,
Dan Williams <dan.j.williams@intel.com>,
linux-arm-kernel@lists.infradead.org,
Christophe Leroy <christophe.leroy@c-s.fr>,
Tony Luck <tony.luck@intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Randy Dunlap <rdunlap@infradead.org>,
Oleg Nesterov <oleg@redhat.com>,
linux-kernel@vger.kernel.org,
Miles Chen <miles.chen@mediatek.com>,
Mike Rapoport <rppt@linux.vnet.ibm.com>,
James Morse <james.morse@arm.com>,
Souptick Joarder <jrdr.linux@gmail.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Andrew Morton <akpm@linux-foundation.org>,
Logan Gunthorpe <logang@deltatee.com>,
Greg Hackmann <ghackmann@android.com>
Subject: Re: [PATCH v2 0/9] mm: PG_reserved cleanups and documentation
Date: Tue, 15 Jan 2019 07:38:39 -0800 [thread overview]
Message-ID: <20190115153839.GE26443@infradead.org> (raw)
In-Reply-To: <20190114125903.24845-1-david@redhat.com>
On Mon, Jan 14, 2019 at 01:58:54PM +0100, David Hildenbrand wrote:
> Nothing major changed since the last version. I would be happy about
> additional ACKs. If there are no further comments, can this go via the
> mm-tree in one chunk?
>
> I was recently going over all users of PG_reserved. Short story: it is
> difficult and sometimes not really clear if setting/checking for
> PG_reserved is only a relict from the past. Easy to break things. I
> guess I now have a pretty good idea wh things are like that
> nowadays and how they evolved.
Any reason you skipped
drivers/gpu/drm/drm_pci.c:drm_pci_alloc()
and
drivers/gpu/drm/drm_scatter.c:drm_legacy_sg_alloc()
which both look completely bogus as-is?
In fact we should probably just try to kill them off as they have
very few users left.
_______________________________________________
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: Christoph Hellwig <hch@infradead.org>
To: David Hildenbrand <david@redhat.com>
Cc: linux-mm@kvack.org, Mark Rutland <mark.rutland@arm.com>,
Michal Hocko <mhocko@suse.com>,
CHANDAN VN <chandan.vn@samsung.com>,
David Airlie <airlied@linux.ie>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Bhupesh Sharma <bhsharma@redhat.com>,
Palmer Dabbelt <palmer@sifive.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
Tony Luck <tony.luck@intel.com>, Stefan Agner <stefan@agner.ch>,
Michal Hocko <mhocko@kernel.org>,
David Howells <dhowells@redhat.com>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
linux-riscv@lists.infradead.org,
Alexander Duyck <alexander.h.duyck@linux.intel.com>,
linux-s390@vger.kernel.org,
Florian Fainelli <f.fainelli@gmail.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Logan Gunthorpe <logang@deltatee.com>,
Pavel Tatashin <pasha.tatashin@oracle.com>,
Matthew Wilcox <willy@infradead.org>,
AKASHI Takahiro <takahiro.akashi@linaro.org>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Anthony Yznaga <anthony.yznaga@oracle.com>,
Tobias Klauser <tklauser@distanz.ch>,
Laura Abbott <labbott@redhat.com>,
Fenghua Yu <fenghua.yu@intel.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Kees Cook <keescook@chromium.org>, Arnd Bergmann <arnd@arndb.de>,
Stephen Rothwell <sfr@canb.auug.org.au>,
Marc Zyngier <marc.zyngier@arm.com>,
Will Deacon <will.deacon@arm.com>,
Kristina Martsenko <kristina.martsenko@arm.com>,
linux-m68k@lists.linux-m68k.org,
Dave Kleikamp <dave.kleikamp@oracle.com>,
linux-mediatek@lists.infradead.org,
Oleg Nesterov <oleg@redhat.com>,
Dan Williams <dan.j.williams@intel.com>,
linux-arm-kernel@lists.infradead.org,
Christophe Leroy <christophe.leroy@c-s.fr>,
Matthias Brugger <mbrugger@suse.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Randy Dunlap <rdunlap@infradead.org>,
linux-kernel@vger.kernel.org,
Miles Chen <miles.chen@mediatek.com>,
Mike Rapoport <rppt@linux.vnet.ibm.com>,
James Morse <james.morse@arm.com>,
Souptick Joarder <jrdr.linux@gmail.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Andrew Morton <akpm@linux-foundation.org>,
linuxppc-dev@lists.ozlabs.org,
Greg Hackmann <ghackmann@android.com>
Subject: Re: [PATCH v2 0/9] mm: PG_reserved cleanups and documentation
Date: Tue, 15 Jan 2019 07:38:39 -0800 [thread overview]
Message-ID: <20190115153839.GE26443@infradead.org> (raw)
In-Reply-To: <20190114125903.24845-1-david@redhat.com>
On Mon, Jan 14, 2019 at 01:58:54PM +0100, David Hildenbrand wrote:
> Nothing major changed since the last version. I would be happy about
> additional ACKs. If there are no further comments, can this go via the
> mm-tree in one chunk?
>
> I was recently going over all users of PG_reserved. Short story: it is
> difficult and sometimes not really clear if setting/checking for
> PG_reserved is only a relict from the past. Easy to break things. I
> guess I now have a pretty good idea wh things are like that
> nowadays and how they evolved.
Any reason you skipped
drivers/gpu/drm/drm_pci.c:drm_pci_alloc()
and
drivers/gpu/drm/drm_scatter.c:drm_legacy_sg_alloc()
which both look completely bogus as-is?
In fact we should probably just try to kill them off as they have
very few users left.
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@infradead.org>
To: David Hildenbrand <david@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
Michal Hocko <mhocko@suse.com>,
CHANDAN VN <chandan.vn@samsung.com>,
David Airlie <airlied@linux.ie>,
Bhupesh Sharma <bhsharma@redhat.com>,
Palmer Dabbelt <palmer@sifive.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
Stefan Agner <stefan@agner.ch>, Michal Hocko <mhocko@kernel.org>,
David Howells <dhowells@redhat.com>,
linux-mm@kvack.org, Paul Mackerras <paulus@samba.org>,
linux-riscv@lists.infradead.org,
Alexander Duyck <alexander.h.duyck@linux.intel.com>,
linux-s390@vger.kernel.org,
Florian Fainelli <f.fainelli@gmail.com>,
Arnd Bergmann <arnd@arndb.de>,
Pavel Tatashin <pasha.tatashin@oracle.com>,
Matthew Wilcox <willy@infradead.org>,
AKASHI Takahiro <takahiro.akashi@linaro.org>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Matthias Brugger <mbrugger@suse.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Anthony Yznaga <anthony.yznaga@oracle.com>,
Tobias Klauser <tklauser@distanz.ch>,
Laura Abbott <labbott@redhat.com>,
Fenghua Yu <fenghua.yu@intel.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Kees Cook <keescook@chromium.org>,
Vasily Gorbik <gor@linux.ibm.com>,
Stephen Rothwell <sfr@canb.auug.org.au>,
Marc Zyngier <marc.zyngier@arm.com>,
Will Deacon <will.deacon@arm.com>,
linuxppc-dev@lists.ozlabs.org,
Kristina Martsenko <kristina.martsenko@arm.com>,
linux-m68k@lists.linux-m68k.org,
Dave Kleikamp <dave.kleikamp@oracle.com>,
linux-mediatek@lists.infradead.org,
Dan Williams <dan.j.williams@intel.com>,
linux-arm-kernel@lists.infradead.org,
Tony Luck <tony.luck@intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Randy Dunlap <rdunlap@infradead.org>,
Oleg Nesterov <oleg@redhat.com>,
linux-kernel@vger.kernel.org,
Miles Chen <miles.chen@mediatek.com>,
Mike Rapoport <rppt@linux.vnet.ibm.com>,
James Morse <james.morse@arm.com>,
Souptick Joarder <jrdr.linux@gmail.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Andrew Morton <akpm@linux-foundation.org>,
Logan Gunthorpe <logang@deltatee.com>,
Greg Hackmann <ghackmann@android.com>
Subject: Re: [PATCH v2 0/9] mm: PG_reserved cleanups and documentation
Date: Tue, 15 Jan 2019 07:38:39 -0800 [thread overview]
Message-ID: <20190115153839.GE26443@infradead.org> (raw)
In-Reply-To: <20190114125903.24845-1-david@redhat.com>
On Mon, Jan 14, 2019 at 01:58:54PM +0100, David Hildenbrand wrote:
> Nothing major changed since the last version. I would be happy about
> additional ACKs. If there are no further comments, can this go via the
> mm-tree in one chunk?
>
> I was recently going over all users of PG_reserved. Short story: it is
> difficult and sometimes not really clear if setting/checking for
> PG_reserved is only a relict from the past. Easy to break things. I
> guess I now have a pretty good idea wh things are like that
> nowadays and how they evolved.
Any reason you skipped
drivers/gpu/drm/drm_pci.c:drm_pci_alloc()
and
drivers/gpu/drm/drm_scatter.c:drm_legacy_sg_alloc()
which both look completely bogus as-is?
In fact we should probably just try to kill them off as they have
very few users left.
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@infradead.org>
To: David Hildenbrand <david@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
Michal Hocko <mhocko@suse.com>,
CHANDAN VN <chandan.vn@samsung.com>,
David Airlie <airlied@linux.ie>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Bhupesh Sharma <bhsharma@redhat.com>,
Palmer Dabbelt <palmer@sifive.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
Stefan Agner <stefan@agner.ch>, Michal Hocko <mhocko@kernel.org>,
David Howells <dhowells@redhat.com>,
linux-mm@kvack.org, Paul Mackerras <paulus@samba.org>,
linux-riscv@lists.infradead.org,
Alexander Duyck <alexander.h.duyck@linux.intel.com>,
linux-s390@vger.kernel.org,
Florian Fainelli <f.fainelli@gmail.com>,
Arnd Bergmann <arnd@arndb.de>,
Michael Ellerman <mpe@ellerman.id.au>,
Pavel Tatashin <pasha.tatashin@oracle.com>,
Matthew Wilcox <willy@infradead.org>,
AKASHI Takahiro <takahiro.akashi@linaro.org>,
Geert Uytterhoeven <geert@linux-m68k.org>Matthias Brugger <m>
Subject: Re: [PATCH v2 0/9] mm: PG_reserved cleanups and documentation
Date: Tue, 15 Jan 2019 07:38:39 -0800 [thread overview]
Message-ID: <20190115153839.GE26443@infradead.org> (raw)
In-Reply-To: <20190114125903.24845-1-david@redhat.com>
On Mon, Jan 14, 2019 at 01:58:54PM +0100, David Hildenbrand wrote:
> Nothing major changed since the last version. I would be happy about
> additional ACKs. If there are no further comments, can this go via the
> mm-tree in one chunk?
>
> I was recently going over all users of PG_reserved. Short story: it is
> difficult and sometimes not really clear if setting/checking for
> PG_reserved is only a relict from the past. Easy to break things. I
> guess I now have a pretty good idea wh things are like that
> nowadays and how they evolved.
Any reason you skipped
drivers/gpu/drm/drm_pci.c:drm_pci_alloc()
and
drivers/gpu/drm/drm_scatter.c:drm_legacy_sg_alloc()
which both look completely bogus as-is?
In fact we should probably just try to kill them off as they have
very few users left.
next prev parent reply other threads:[~2019-01-15 15:39 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 ` [PATCH v2 4/9] riscv/vdso: " David Hildenbrand
2019-01-14 12:58 ` David Hildenbrand
2019-01-14 12:58 ` David Hildenbrand
2019-01-14 12:58 ` David Hildenbrand
2019-01-15 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 ` Christoph Hellwig [this message]
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 15:53 ` 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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