From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>,
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 21:21:39 +0100 [thread overview]
Message-ID: <20160120202139.GC2741@linutronix.de> (raw)
In-Reply-To: <1452867647-1410-1-git-send-email-grygorii.strashko@ti.com>
* 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:)
Sebastian
WARNING: multiple messages have this Message-ID (diff)
From: bigeasy@linutronix.de (Sebastian Andrzej Siewior)
To: linux-arm-kernel@lists.infradead.org
Subject: [4.4-rt2 PATCH] ARM: highmem: take into account FIX_KMAP_BEGIN in switch_kmaps()
Date: Wed, 20 Jan 2016 21:21:39 +0100 [thread overview]
Message-ID: <20160120202139.GC2741@linutronix.de> (raw)
In-Reply-To: <1452867647-1410-1-git-send-email-grygorii.strashko@ti.com>
* 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:)
Sebastian
next prev parent reply other threads:[~2016-01-20 20:21 UTC|newest]
Thread overview: 10+ 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 14:20 ` Grygorii Strashko
2016-01-15 16:56 ` Sebastian Andrzej Siewior
2016-01-15 16:56 ` Sebastian Andrzej Siewior
2016-01-20 20:21 ` Sebastian Andrzej Siewior [this message]
2016-01-20 20:21 ` Sebastian Andrzej Siewior
2016-01-20 20:23 ` Russell King - ARM Linux
2016-01-20 20:23 ` Russell King - ARM Linux
2016-01-20 20:35 ` Grygorii Strashko
2016-01-20 20:35 ` Grygorii Strashko
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