From: "Jonathan Neuschäfer" <j.neuschaefer@gmx.net>
To: linuxppc-dev@lists.ozlabs.org
Cc: linux-kernel@vger.kernel.org,
"Michael Ellerman" <mpe@ellerman.id.au>,
linux-mm@kvack.org, "Joel Stanley" <joel@jms.id.au>,
"Christophe LEROY" <christophe.leroy@c-s.fr>,
"Jonathan Neuschäfer" <j.neuschaefer@gmx.net>,
"Benjamin Herrenschmidt" <benh@kernel.crashing.org>,
"Paul Mackerras" <paulus@samba.org>,
"Balbir Singh" <bsingharora@gmail.com>,
"Guenter Roeck" <linux@roeck-us.net>
Subject: [PATCH 3/5] powerpc/mm/32: Use page_is_ram to check for RAM
Date: Thu, 22 Feb 2018 13:15:14 +0100 [thread overview]
Message-ID: <20180222121516.23415-4-j.neuschaefer@gmx.net> (raw)
In-Reply-To: <20180222121516.23415-1-j.neuschaefer@gmx.net>
Signed-off-by: Jonathan NeuschA?fer <j.neuschaefer@gmx.net>
---
arch/powerpc/mm/pgtable_32.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index d35d9ad3c1cd..d54e1a9c1c99 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -145,9 +145,8 @@ __ioremap_caller(phys_addr_t addr, unsigned long size, unsigned long flags,
#ifndef CONFIG_CRASH_DUMP
/*
* Don't allow anybody to remap normal RAM that we're using.
- * mem_init() sets high_memory so only do the check after that.
*/
- if (slab_is_available() && (p < virt_to_phys(high_memory)) &&
+ if (page_is_ram(__phys_to_pfn(p)) &&
!(__allow_ioremap_reserved && memblock_is_region_reserved(p, size))) {
printk("__ioremap(): phys addr 0x%llx is RAM lr %ps\n",
(unsigned long long)p, __builtin_return_address(0));
--
2.16.1
--
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next prev parent reply other threads:[~2018-02-22 12:15 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-22 12:15 [PATCH 0/5] PPC32/ioremap: Use memblock API " Jonathan Neuschäfer
2018-02-22 12:15 ` [PATCH 1/5] powerpc: mm: Simplify page_is_ram by using memblock_is_memory Jonathan Neuschäfer
2018-02-22 12:15 ` [PATCH 2/5] powerpc: mm: Use memblock API for PPC32 page_is_ram Jonathan Neuschäfer
2018-02-22 12:15 ` Jonathan Neuschäfer [this message]
2018-03-19 6:05 ` [PATCH 3/5] powerpc/mm/32: Use page_is_ram to check for RAM Michael Ellerman
2018-03-19 11:19 ` Michael Ellerman
2018-03-27 19:24 ` Jonathan Neuschäfer
2018-02-22 12:15 ` [PATCH 4/5] powerpc: wii: Don't rely on the reserved memory hack Jonathan Neuschäfer
2018-02-22 12:15 ` [PATCH 5/5] powerpc/mm/32: Remove " Jonathan Neuschäfer
2018-02-23 8:01 ` [PATCH 0/5] PPC32/ioremap: Use memblock API to check for RAM Christophe LEROY
2018-02-24 13:48 ` Jonathan Neuschäfer
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