From: Christoph Hellwig <hch@infradead.org>
To: ira.weiny@intel.com
Cc: linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Christian Koenig <christian.koenig@amd.com>,
Huang Rui <ray.huang@amd.com>,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
"James E.J. Bottomley" <James.Bottomley@hansenpartnership.com>,
Helge Deller <deller@gmx.de>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
"David S. Miller" <davem@davemloft.net>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
Andy Lutomirski <luto@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Chris Zankel <chris@zankel.net>,
Max Filippov <jcmvbkbc@gmail.com>,
Dan Williams <dan.j.williams@intel.com>,
linux-snps-arc@lists.infradead.org,
linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org,
linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org,
linux-xtensa@linux-xtensa.org, dri-devel@lists.freedesktop.org
Subject: Re: [PATCH V2 08/11] arch/kmap: Ensure kmap_prot visibility
Date: Tue, 5 May 2020 23:13:26 -0700 [thread overview]
Message-ID: <20200506061326.GD5192@infradead.org> (raw)
In-Reply-To: <20200504010912.982044-9-ira.weiny@intel.com>
On Sun, May 03, 2020 at 06:09:09PM -0700, ira.weiny@intel.com wrote:
> From: Ira Weiny <ira.weiny@intel.com>
>
> We want to support kmap_atomic_prot() on all architectures and it makes
> sense to define kmap_atomic() to use the default kmap_prot.
>
> So we ensure all arch's have a globally available kmap_prot either as a
> define or exported symbol.
FYI, I still think a
#ifndef kmap_prot
#define kmap_prot PAGE_KERNEL
#endif
in linux/highmem.h would be nicer. Then only xtensa and sparc need
to override it and clearly stand out.
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@infradead.org>
To: ira.weiny@intel.com
Cc: Peter Zijlstra <peterz@infradead.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
dri-devel@lists.freedesktop.org, linux-mips@vger.kernel.org,
"James E.J. Bottomley" <James.Bottomley@hansenpartnership.com>,
Max Filippov <jcmvbkbc@gmail.com>, Huang Rui <ray.huang@amd.com>,
Paul Mackerras <paulus@samba.org>,
"H. Peter Anvin" <hpa@zytor.com>,
sparclinux@vger.kernel.org,
Dan Williams <dan.j.williams@intel.com>,
Helge Deller <deller@gmx.de>,
x86@kernel.org, linux-csky@vger.kernel.org,
Ingo Molnar <mingo@redhat.com>,
linux-snps-arc@lists.infradead.org,
linux-xtensa@linux-xtensa.org, Borislav Petkov <bp@alien8.de>,
Andy Lutomirski <luto@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
linux-arm-kernel@lists.infradead.org,
Chris Zankel <chris@zankel.net>,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org,
Christian Koenig <christian.koenig@amd.com>,
Andrew Morton <akpm@linux-foundation.org>,
linuxppc-dev@lists.ozlabs.org,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH V2 08/11] arch/kmap: Ensure kmap_prot visibility
Date: Tue, 5 May 2020 23:13:26 -0700 [thread overview]
Message-ID: <20200506061326.GD5192@infradead.org> (raw)
In-Reply-To: <20200504010912.982044-9-ira.weiny@intel.com>
On Sun, May 03, 2020 at 06:09:09PM -0700, ira.weiny@intel.com wrote:
> From: Ira Weiny <ira.weiny@intel.com>
>
> We want to support kmap_atomic_prot() on all architectures and it makes
> sense to define kmap_atomic() to use the default kmap_prot.
>
> So we ensure all arch's have a globally available kmap_prot either as a
> define or exported symbol.
FYI, I still think a
#ifndef kmap_prot
#define kmap_prot PAGE_KERNEL
#endif
in linux/highmem.h would be nicer. Then only xtensa and sparc need
to override it and clearly stand out.
_______________________________________________
linux-snps-arc mailing list
linux-snps-arc@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-snps-arc
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@infradead.org>
To: ira.weiny@intel.com
Cc: Peter Zijlstra <peterz@infradead.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
dri-devel@lists.freedesktop.org, linux-mips@vger.kernel.org,
"James E.J. Bottomley" <James.Bottomley@hansenpartnership.com>,
Max Filippov <jcmvbkbc@gmail.com>, Huang Rui <ray.huang@amd.com>,
Paul Mackerras <paulus@samba.org>,
"H. Peter Anvin" <hpa@zytor.com>,
sparclinux@vger.kernel.org,
Dan Williams <dan.j.williams@intel.com>,
Helge Deller <deller@gmx.de>,
x86@kernel.org, linux-csky@vger.kernel.org,
Ingo Molnar <mingo@redhat.com>,
linux-snps-arc@lists.infradead.org,
linux-xtensa@linux-xtensa.org, Borislav Petkov <bp@alien8.de>,
Andy Lutomirski <luto@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
linux-arm-kernel@lists.infradead.org,
Chris Zankel <chris@zankel.net>,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org,
Christian Koenig <christian.koenig@amd.com>,
Andrew Morton <akpm@linux-foundation.org>,
linuxppc-dev@lists.ozlabs.org,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH V2 08/11] arch/kmap: Ensure kmap_prot visibility
Date: Tue, 5 May 2020 23:13:26 -0700 [thread overview]
Message-ID: <20200506061326.GD5192@infradead.org> (raw)
In-Reply-To: <20200504010912.982044-9-ira.weiny@intel.com>
On Sun, May 03, 2020 at 06:09:09PM -0700, ira.weiny@intel.com wrote:
> From: Ira Weiny <ira.weiny@intel.com>
>
> We want to support kmap_atomic_prot() on all architectures and it makes
> sense to define kmap_atomic() to use the default kmap_prot.
>
> So we ensure all arch's have a globally available kmap_prot either as a
> define or exported symbol.
FYI, I still think a
#ifndef kmap_prot
#define kmap_prot PAGE_KERNEL
#endif
in linux/highmem.h would be nicer. Then only xtensa and sparc need
to override it and clearly stand out.
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@infradead.org>
To: ira.weiny@intel.com
Cc: Peter Zijlstra <peterz@infradead.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
dri-devel@lists.freedesktop.org, linux-mips@vger.kernel.org,
"James E.J. Bottomley" <James.Bottomley@hansenpartnership.com>,
Max Filippov <jcmvbkbc@gmail.com>, Huang Rui <ray.huang@amd.com>,
Paul Mackerras <paulus@samba.org>,
"H. Peter Anvin" <hpa@zytor.com>,
sparclinux@vger.kernel.org,
Dan Williams <dan.j.williams@intel.com>,
Helge Deller <deller@gmx.de>,
x86@kernel.org, linux-csky@vger.kernel.org,
Ingo Molnar <mingo@redhat.com>,
linux-snps-arc@lists.infradead.org,
linux-xtensa@linux-xtensa.org, Borislav Petkov <bp@alien8.de>,
Andy Lutomirski <luto@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
linux-arm-kernel@lists.infradead.org,
Chris Zankel <chris@zankel.net>,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org,
Christian Koenig <christian.koenig@amd.com>,
Andrew Morton <akpm@linux-foundation.org>,
linuxppc-dev@lists.ozlabs.org,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH V2 08/11] arch/kmap: Ensure kmap_prot visibility
Date: Wed, 06 May 2020 06:13:26 +0000 [thread overview]
Message-ID: <20200506061326.GD5192@infradead.org> (raw)
In-Reply-To: <20200504010912.982044-9-ira.weiny@intel.com>
On Sun, May 03, 2020 at 06:09:09PM -0700, ira.weiny@intel.com wrote:
> From: Ira Weiny <ira.weiny@intel.com>
>
> We want to support kmap_atomic_prot() on all architectures and it makes
> sense to define kmap_atomic() to use the default kmap_prot.
>
> So we ensure all arch's have a globally available kmap_prot either as a
> define or exported symbol.
FYI, I still think a
#ifndef kmap_prot
#define kmap_prot PAGE_KERNEL
#endif
in linux/highmem.h would be nicer. Then only xtensa and sparc need
to override it and clearly stand out.
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@infradead.org>
To: ira.weiny@intel.com
Cc: Peter Zijlstra <peterz@infradead.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
dri-devel@lists.freedesktop.org, linux-mips@vger.kernel.org,
"James E.J. Bottomley" <James.Bottomley@hansenpartnership.com>,
Max Filippov <jcmvbkbc@gmail.com>, Huang Rui <ray.huang@amd.com>,
Paul Mackerras <paulus@samba.org>,
"H. Peter Anvin" <hpa@zytor.com>,
sparclinux@vger.kernel.org,
Dan Williams <dan.j.williams@intel.com>,
Helge Deller <deller@gmx.de>,
x86@kernel.org, linux-csky@vger.kernel.org,
Ingo Molnar <mingo@redhat.com>,
linux-snps-arc@lists.infradead.org,
linux-xtensa@linux-xtensa.org, Borislav Petkov <bp@alien8.de>,
Andy Lutomirski <luto@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
linux-arm-kernel@lists.infradead.org,
Chris Zankel <chris@zankel.net>,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org,
Christian Koenig <christian.koenig@amd.com>,
Andrew Morton <akpm@linux-foundation.org>,
linuxppc-dev@lists.ozlabs.org,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH V2 08/11] arch/kmap: Ensure kmap_prot visibility
Date: Tue, 5 May 2020 23:13:26 -0700 [thread overview]
Message-ID: <20200506061326.GD5192@infradead.org> (raw)
In-Reply-To: <20200504010912.982044-9-ira.weiny@intel.com>
On Sun, May 03, 2020 at 06:09:09PM -0700, ira.weiny@intel.com wrote:
> From: Ira Weiny <ira.weiny@intel.com>
>
> We want to support kmap_atomic_prot() on all architectures and it makes
> sense to define kmap_atomic() to use the default kmap_prot.
>
> So we ensure all arch's have a globally available kmap_prot either as a
> define or exported symbol.
FYI, I still think a
#ifndef kmap_prot
#define kmap_prot PAGE_KERNEL
#endif
in linux/highmem.h would be nicer. Then only xtensa and sparc need
to override it and clearly stand out.
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-05-06 6:13 UTC|newest]
Thread overview: 162+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-04 1:09 [PATCH V2 00/11] Subject: Remove duplicated kmap code ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` [PATCH V2 01/11] arch/kmap: Remove BUG_ON() ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` [PATCH V2 02/11] arch/xtensa: Move kmap build bug out of the way ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` [PATCH V2 03/11] arch/kmap: Remove redundant arch specific kmaps ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` [PATCH V2 04/11] arch/kunmap: Remove duplicate kunmap implementations ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` [PATCH V2 05/11] {x86,powerpc,microblaze}/kmap: Move preempt disable ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-06 6:11 ` Christoph Hellwig
2020-05-06 6:11 ` Christoph Hellwig
2020-05-06 6:11 ` Christoph Hellwig
2020-05-06 6:11 ` Christoph Hellwig
2020-05-06 6:11 ` Christoph Hellwig
2020-05-06 20:25 ` Ira Weiny
2020-05-06 20:25 ` Ira Weiny
2020-05-06 20:25 ` Ira Weiny
2020-05-06 20:25 ` Ira Weiny
2020-05-06 20:25 ` Ira Weiny
2020-05-06 20:25 ` Ira Weiny
2020-05-04 1:09 ` [PATCH V2 06/11] arch/kmap_atomic: Consolidate duplicate code ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-06 6:12 ` Christoph Hellwig
2020-05-06 6:12 ` Christoph Hellwig
2020-05-06 6:12 ` Christoph Hellwig
2020-05-06 6:12 ` Christoph Hellwig
2020-05-06 6:12 ` Christoph Hellwig
2020-05-04 1:09 ` [PATCH V2 07/11] arch/kunmap_atomic: " ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-06 6:12 ` Christoph Hellwig
2020-05-06 6:12 ` Christoph Hellwig
2020-05-06 6:12 ` Christoph Hellwig
2020-05-06 6:12 ` Christoph Hellwig
2020-05-06 6:12 ` Christoph Hellwig
2020-05-04 1:09 ` [PATCH V2 08/11] arch/kmap: Ensure kmap_prot visibility ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-06 6:13 ` Christoph Hellwig [this message]
2020-05-06 6:13 ` Christoph Hellwig
2020-05-06 6:13 ` Christoph Hellwig
2020-05-06 6:13 ` Christoph Hellwig
2020-05-06 6:13 ` Christoph Hellwig
2020-05-06 20:33 ` Ira Weiny
2020-05-06 20:33 ` Ira Weiny
2020-05-06 20:33 ` Ira Weiny
2020-05-06 20:33 ` Ira Weiny
2020-05-06 20:33 ` Ira Weiny
2020-05-06 20:33 ` Ira Weiny
2020-05-07 4:56 ` Christoph Hellwig
2020-05-07 4:56 ` Christoph Hellwig
2020-05-07 4:56 ` Christoph Hellwig
2020-05-07 4:56 ` Christoph Hellwig
2020-05-07 4:56 ` Christoph Hellwig
2020-05-04 1:09 ` [PATCH V2 09/11] arch/kmap: Don't hard code kmap_prot values ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` [PATCH V2 10/11] arch/kmap: Define kmap_atomic_prot() for all arch's ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-06 6:14 ` Christoph Hellwig
2020-05-06 6:14 ` Christoph Hellwig
2020-05-06 6:14 ` Christoph Hellwig
2020-05-06 6:14 ` Christoph Hellwig
2020-05-06 6:14 ` Christoph Hellwig
2020-05-04 1:09 ` [PATCH V2 11/11] drm: Remove drm specific kmap_atomic code ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 1:09 ` ira.weiny
2020-05-04 11:18 ` Daniel Vetter
2020-05-04 11:18 ` Daniel Vetter
2020-05-04 11:18 ` Daniel Vetter
2020-05-04 11:18 ` Daniel Vetter
2020-05-04 11:18 ` Daniel Vetter
2020-05-04 11:18 ` Daniel Vetter
2020-05-04 20:24 ` Ira Weiny
2020-05-04 20:24 ` Ira Weiny
2020-05-04 20:24 ` Ira Weiny
2020-05-04 20:24 ` Ira Weiny
2020-05-04 20:24 ` Ira Weiny
2020-05-04 20:24 ` Ira Weiny
2020-05-04 1:35 ` [PATCH V2 00/11] Subject: Remove duplicated kmap code Al Viro
2020-05-04 1:35 ` Al Viro
2020-05-04 1:35 ` Al Viro
2020-05-04 1:35 ` Al Viro
2020-05-04 1:35 ` Al Viro
2020-05-04 1:35 ` Al Viro
2020-05-04 5:04 ` Ira Weiny
2020-05-04 5:04 ` Ira Weiny
2020-05-04 5:04 ` Ira Weiny
2020-05-04 5:04 ` Ira Weiny
2020-05-04 5:04 ` Ira Weiny
2020-05-04 5:04 ` Ira Weiny
2020-05-04 5:33 ` Al Viro
2020-05-04 5:33 ` Al Viro
2020-05-04 5:33 ` Al Viro
2020-05-04 5:33 ` Al Viro
2020-05-04 5:33 ` Al Viro
2020-05-04 5:33 ` Al Viro
2020-05-04 20:17 ` Ira Weiny
2020-05-04 20:17 ` Ira Weiny
2020-05-04 20:17 ` Ira Weiny
2020-05-04 20:17 ` Ira Weiny
2020-05-04 20:17 ` Ira Weiny
2020-05-04 20:17 ` Ira Weiny
2020-05-04 21:02 ` Al Viro
2020-05-04 21:02 ` Al Viro
2020-05-04 21:02 ` Al Viro
2020-05-04 21:02 ` Al Viro
2020-05-04 21:02 ` Al Viro
2020-05-04 21:02 ` Al Viro
2020-05-04 23:27 ` Ira Weiny
2020-05-04 23:27 ` Ira Weiny
2020-05-04 23:27 ` Ira Weiny
2020-05-04 23:27 ` Ira Weiny
2020-05-04 23:27 ` Ira Weiny
2020-05-04 23:27 ` Ira Weiny
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