From: "Kirill A. Shutemov" <kirill@shutemov.name>
To: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
akpm@linux-foundation.org, peterz@infradead.org,
mingo@kernel.org, davej@redhat.com, sasha.levin@oracle.com,
hughd@google.com, linux-mm@kvack.org, linux-arch@vger.kernel.org,
linux-kernel@vger.kernel.org,
Heiko Carstens <heiko.carstens@de.ibm.com>
Subject: Re: [PATCH 30/38] s390: drop pte_file()-related helpers
Date: Mon, 29 Dec 2014 12:37:57 +0200 [thread overview]
Message-ID: <20141229103757.GA379@node.dhcp.inet.fi> (raw)
In-Reply-To: <20141229110727.75afa56d@mschwide>
On Mon, Dec 29, 2014 at 11:07:27AM +0100, Martin Schwidefsky wrote:
> On Wed, 24 Dec 2014 14:22:38 +0200
> "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> wrote:
>
> > We've replaced remap_file_pages(2) implementation with emulation.
> > Nobody creates non-linear mapping anymore.
> >
> > Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
> > Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
> > Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
> > ---
> > @@ -279,7 +279,6 @@ static inline int is_module_addr(void *addr)
> > *
> > * pte_present is true for the bit pattern .xx...xxxxx1, (pte & 0x001) == 0x001
> > * pte_none is true for the bit pattern .10...xxxx00, (pte & 0x603) == 0x400
> > - * pte_file is true for the bit pattern .11...xxxxx0, (pte & 0x601) == 0x600
> > * pte_swap is true for the bit pattern .10...xxxx10, (pte & 0x603) == 0x402
> > */
>
> Nice, once this is upstream I can free up one of the software bits in
> the pte by redefining the type bits. Right now all of them are used up.
> Is the removal of non-linear mappings a done deal ?
Yes, if no horrible regression will be reported. We don't create
non-linear mapping in -mm (and -next) tree for a few release cycles.
Nobody complained so far.
Ack?
--
Kirill A. Shutemov
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next prev parent reply other threads:[~2014-12-29 10:40 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-24 12:22 [PATCH 00/38] mm: remove non-linear mess Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 01/38] mm: drop support of non-linear mapping from unmap/zap codepath Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 02/38] mm: drop support of non-linear mapping from fault codepath Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 03/38] mm: drop vm_ops->remap_pages and generic_file_remap_pages() stub Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 04/38] proc: drop handling non-linear mappings Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 05/38] rmap: drop support of " Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 06/38] mm: replace vma->sharead.linear with vma->shared Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 07/38] mm: remove rest usage of VM_NONLINEAR and pte_file() Kirill A. Shutemov
2014-12-24 14:02 ` [PATCHv2 " Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 08/38] asm-generic: drop unused pte_file* helpers Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 09/38] alpha: drop _PAGE_FILE and pte_file()-related helpers Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 10/38] arc: " Kirill A. Shutemov
2014-12-24 12:29 ` Vineet Gupta
2014-12-24 12:22 ` [PATCH 11/38] arm64: drop PTE_FILE " Kirill A. Shutemov
2014-12-24 17:23 ` Catalin Marinas
2014-12-24 12:22 ` [PATCH 12/38] arm: drop L_PTE_FILE " Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 13/38] avr32: drop _PAGE_FILE " Kirill A. Shutemov
2014-12-24 14:15 ` Hans-Christian Egtvedt
2014-12-24 12:22 ` [PATCH 14/38] blackfin: drop pte_file() Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 15/38] c6x: " Kirill A. Shutemov
2014-12-24 14:08 ` Mark Salter
2014-12-24 12:22 ` [PATCH 16/38] cris: drop _PAGE_FILE and pte_file()-related helpers Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 17/38] frv: " Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 18/38] hexagon: " Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 19/38] ia64: " Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 20/38] m32r: " Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 21/38] m68k: " Kirill A. Shutemov
2014-12-29 12:16 ` [PATCHv2 " Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 22/38] metag: " Kirill A. Shutemov
2015-01-02 16:03 ` James Hogan
2014-12-24 12:22 ` [PATCH 23/38] microblaze: " Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 24/38] mips: " Kirill A. Shutemov
2014-12-25 10:08 ` Geert Uytterhoeven
2014-12-25 10:18 ` Kirill A. Shutemov
2014-12-29 12:17 ` [PATCHv2 " Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 25/38] mn10300: " Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 26/38] nios2: " Kirill A. Shutemov
2014-12-25 12:30 ` Tobias Klauser
2014-12-26 5:52 ` Ley Foon Tan
2014-12-24 12:22 ` [PATCH 27/38] openrisc: " Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 28/38] parisc: " Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 29/38] powerpc: " Kirill A. Shutemov
2015-01-05 5:03 ` Michael Ellerman
2014-12-24 12:22 ` [PATCH 30/38] s390: drop " Kirill A. Shutemov
2014-12-29 10:07 ` Martin Schwidefsky
2014-12-29 10:37 ` Kirill A. Shutemov [this message]
2014-12-30 10:55 ` Martin Schwidefsky
2014-12-24 12:22 ` [PATCH 31/38] score: drop _PAGE_FILE and " Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 32/38] sh: " Kirill A. Shutemov
2014-12-24 14:05 ` [PATCH] " Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 33/38] sparc: drop " Kirill A. Shutemov
2014-12-25 23:34 ` David Miller
2014-12-24 12:22 ` [PATCH 34/38] tile: " Kirill A. Shutemov
2014-12-25 2:57 ` Chris Metcalf
2014-12-24 12:22 ` [PATCH 35/38] um: drop _PAGE_FILE and " Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 36/38] unicore32: drop " Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 37/38] x86: drop _PAGE_FILE and " Kirill A. Shutemov
2014-12-24 12:22 ` [PATCH 38/38] xtensa: " Kirill A. Shutemov
2014-12-25 10:25 ` Max Filippov
2014-12-26 21:10 ` [PATCH 00/38] mm: remove non-linear mess Felipe Balbi
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