From: Andrei Vagin <avagin@gmail.com>
To: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
dima@arista.com, arnd@arndb.de, tglx@linutronix.de,
vincenzo.frascino@arm.com, luto@kernel.org,
linux-arch@vger.kernel.org
Subject: Re: [PATCH RESEND v1 4/4] powerpc/vdso: Add support for time namespaces
Date: Sun, 4 Apr 2021 21:50:50 -0700 [thread overview]
Message-ID: <YGqXKkLDwDb589Qg@gmail.com> (raw)
In-Reply-To: <1a15495f80ec19a87b16cf874dbf7c3fa5ec40fe.1617209142.git.christophe.leroy@csgroup.eu>
On Wed, Mar 31, 2021 at 04:48:47PM +0000, Christophe Leroy wrote:
> This patch adds the necessary glue to provide time namespaces.
>
> Things are mainly copied from ARM64.
>
> __arch_get_timens_vdso_data() calculates timens vdso data position
> based on the vdso data position, knowing it is the next page in vvar.
> This avoids having to redo the mflr/bcl/mflr/mtlr dance to locate
> the page relative to running code position.
>
Acked-by: Andrei Vagin <avagin@gmail.com>
> Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
WARNING: multiple messages have this Message-ID (diff)
From: Andrei Vagin <avagin@gmail.com>
To: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: linux-arch@vger.kernel.org, arnd@arndb.de, dima@arista.com,
linux-kernel@vger.kernel.org, Paul Mackerras <paulus@samba.org>,
luto@kernel.org, tglx@linutronix.de, vincenzo.frascino@arm.com,
linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH RESEND v1 4/4] powerpc/vdso: Add support for time namespaces
Date: Sun, 4 Apr 2021 21:50:50 -0700 [thread overview]
Message-ID: <YGqXKkLDwDb589Qg@gmail.com> (raw)
In-Reply-To: <1a15495f80ec19a87b16cf874dbf7c3fa5ec40fe.1617209142.git.christophe.leroy@csgroup.eu>
On Wed, Mar 31, 2021 at 04:48:47PM +0000, Christophe Leroy wrote:
> This patch adds the necessary glue to provide time namespaces.
>
> Things are mainly copied from ARM64.
>
> __arch_get_timens_vdso_data() calculates timens vdso data position
> based on the vdso data position, knowing it is the next page in vvar.
> This avoids having to redo the mflr/bcl/mflr/mtlr dance to locate
> the page relative to running code position.
>
Acked-by: Andrei Vagin <avagin@gmail.com>
> Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
next prev parent reply other threads:[~2021-04-05 4:53 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-31 16:48 [PATCH RESEND v1 0/4] powerpc/vdso: Add support for time namespaces Christophe Leroy
2021-03-31 16:48 ` Christophe Leroy
2021-03-31 16:48 ` [PATCH RESEND v1 1/4] lib/vdso: Mark do_hres_timens() and do_coarse_timens() __always_inline() Christophe Leroy
2021-03-31 16:48 ` Christophe Leroy
2021-04-12 12:47 ` Thomas Gleixner
2021-04-12 12:47 ` Thomas Gleixner
2021-04-12 12:54 ` Vincenzo Frascino
2021-04-12 12:54 ` Vincenzo Frascino
2021-03-31 16:48 ` [PATCH RESEND v1 2/4] lib/vdso: Add vdso_data pointer as input to __arch_get_timens_vdso_data() Christophe Leroy
2021-03-31 16:48 ` Christophe Leroy
2021-04-05 5:00 ` Andrei Vagin
2021-04-05 5:00 ` Andrei Vagin
2021-04-12 12:48 ` Thomas Gleixner
2021-04-12 12:48 ` Thomas Gleixner
2021-04-12 12:56 ` Vincenzo Frascino
2021-04-12 12:56 ` Vincenzo Frascino
2021-03-31 16:48 ` [PATCH RESEND v1 3/4] powerpc/vdso: Separate vvar vma from vdso Christophe Leroy
2021-03-31 16:48 ` Christophe Leroy
2021-04-05 5:03 ` Andrei Vagin
2021-04-05 5:03 ` Andrei Vagin
2021-04-12 12:58 ` Vincenzo Frascino
2021-04-12 12:58 ` Vincenzo Frascino
2021-03-31 16:48 ` [PATCH RESEND v1 4/4] powerpc/vdso: Add support for time namespaces Christophe Leroy
2021-03-31 16:48 ` Christophe Leroy
2021-04-05 4:50 ` Andrei Vagin [this message]
2021-04-05 4:50 ` Andrei Vagin
2021-04-12 13:00 ` Vincenzo Frascino
2021-04-12 13:00 ` Vincenzo Frascino
2021-04-12 12:49 ` [PATCH RESEND v1 0/4] " Thomas Gleixner
2021-04-12 12:49 ` Thomas Gleixner
2021-04-13 6:31 ` Michael Ellerman
2021-04-13 6:31 ` Michael Ellerman
2021-04-19 4:00 ` Michael Ellerman
2021-04-19 4:00 ` Michael Ellerman
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