From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>,
linux-rt-users@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Sekhar Nori <nsekhar@ti.com>
Subject: Re: [4.4-rt2 PATCH] ARM: highmem: take into account FIX_KMAP_BEGIN in switch_kmaps()
Date: Wed, 20 Jan 2016 20:23:17 +0000 [thread overview]
Message-ID: <20160120202317.GV19062@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <20160120202139.GC2741@linutronix.de>
On Wed, Jan 20, 2016 at 09:21:39PM +0100, Sebastian Andrzej Siewior wrote:
> * Grygorii Strashko | 2016-01-15 16:20:47 [+0200]:
>
> >--- a/arch/arm/mm/highmem.c
> >+++ b/arch/arm/mm/highmem.c
> >@@ -175,7 +180,7 @@ void switch_kmaps(struct task_struct *prev_p, struct task_struct *next_p)
> > * Restore @next_p's kmap_atomic mappings
> > */
> > for (i = 0; i < next_p->kmap_idx; i++) {
> >- int idx = i + KM_TYPE_NR * smp_processor_id();
> >+ int idx = fixmap_idx(i);
> >
> > if (!pte_none(next_p->kmap_pte[i]))
> > set_fixmap_pte(idx, next_p->kmap_pte[i]);
>
> Grygorii, if you remove this chunk then it should apply upstream. Could
> you forward it upstream then please? So the -RT piece would shrink a
> little:)
Or I could commit my own patch which forms a proportion of this change.
--
RMK's Patch system: http://www.arm.linux.org.uk/developer/patches/
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next prev parent reply other threads:[~2016-01-20 20:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-15 14:20 [4.4-rt2 PATCH] ARM: highmem: take into account FIX_KMAP_BEGIN in switch_kmaps() Grygorii Strashko
2016-01-15 16:56 ` Sebastian Andrzej Siewior
2016-01-20 20:21 ` Sebastian Andrzej Siewior
2016-01-20 20:23 ` Russell King - ARM Linux [this message]
2016-01-20 20:35 ` Grygorii Strashko
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