From: Thomas Gleixner <tglx@linutronix.de>
To: Christophe Leroy <christophe.leroy@csgroup.eu>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
dima@arista.com, avagin@gmail.com, arnd@arndb.de,
vincenzo.frascino@arm.com, luto@kernel.org,
linux-arch@vger.kernel.org
Subject: Re: [PATCH RESEND v1 2/4] lib/vdso: Add vdso_data pointer as input to __arch_get_timens_vdso_data()
Date: Mon, 12 Apr 2021 14:48:06 +0200 [thread overview]
Message-ID: <87pmyz1xfd.ffs@nanos.tec.linutronix.de> (raw)
In-Reply-To: <539c4204b1baa77c55f758904a1ea239abbc7a5c.1617209142.git.christophe.leroy@csgroup.eu>
On Wed, Mar 31 2021 at 16:48, Christophe Leroy wrote:
> For the same reason as commit e876f0b69dc9 ("lib/vdso: Allow
> architectures to provide the vdso data pointer"), powerpc wants to
> avoid calculation of relative position to code.
>
> As the timens_vdso_data is next page to vdso_data, provide
> vdso_data pointer to __arch_get_timens_vdso_data() in order
> to ease the calculation on powerpc in following patches.
>
> Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
WARNING: multiple messages have this Message-ID (diff)
From: Thomas Gleixner <tglx@linutronix.de>
To: Christophe Leroy <christophe.leroy@csgroup.eu>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>
Cc: linux-arch@vger.kernel.org, arnd@arndb.de, dima@arista.com,
linux-kernel@vger.kernel.org, avagin@gmail.com, luto@kernel.org,
vincenzo.frascino@arm.com, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH RESEND v1 2/4] lib/vdso: Add vdso_data pointer as input to __arch_get_timens_vdso_data()
Date: Mon, 12 Apr 2021 14:48:06 +0200 [thread overview]
Message-ID: <87pmyz1xfd.ffs@nanos.tec.linutronix.de> (raw)
In-Reply-To: <539c4204b1baa77c55f758904a1ea239abbc7a5c.1617209142.git.christophe.leroy@csgroup.eu>
On Wed, Mar 31 2021 at 16:48, Christophe Leroy wrote:
> For the same reason as commit e876f0b69dc9 ("lib/vdso: Allow
> architectures to provide the vdso data pointer"), powerpc wants to
> avoid calculation of relative position to code.
>
> As the timens_vdso_data is next page to vdso_data, provide
> vdso_data pointer to __arch_get_timens_vdso_data() in order
> to ease the calculation on powerpc in following patches.
>
> Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
next prev parent reply other threads:[~2021-04-12 12:48 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 [this message]
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
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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