From: "Wang, Yalin" <Yalin.Wang@sonymobile.com>
To: 'Will Deacon' <will.deacon@arm.com>,
"'linux-kernel@vger.kernel.org'" <linux-kernel@vger.kernel.org>,
"'linux-arm-kernel@lists.infradead.org'"
<linux-arm-kernel@lists.infradead.org>,
"'linux-mm@kvack.org'" <linux-mm@kvack.org>,
'Russell King - ARM Linux' <linux@arm.linux.org.uk>
Subject: [RFC Resend] arm:extend __init_end to a page align address
Date: Mon, 15 Sep 2014 18:26:43 +0800 [thread overview]
Message-ID: <35FD53F367049845BC99AC72306C23D103D6DB491607@CNBJMBX05.corpusers.net> (raw)
In-Reply-To: <35FD53F367049845BC99AC72306C23D103D6DB4915FB@CNBJMBX05.corpusers.net>
this patch change the __init_end address to a page align address, so that free_initmem()
can free the whole .init section, because if the end address is not page aligned,
it will round down to a page align address, then the tail unligned page will not be freed.
Signed-off-by: Yalin wang <yalin.wang@sonymobile.com>
---
arch/arm/kernel/vmlinux.lds.S | 2 +-
arch/arm64/kernel/vmlinux.lds.S | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S index 6f57cb9..8e95aa4 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -219,8 +219,8 @@ SECTIONS
__data_loc = ALIGN(4); /* location in binary */
. = PAGE_OFFSET + TEXT_OFFSET;
#else
- __init_end = .;
. = ALIGN(THREAD_SIZE);
+ __init_end = .;
__data_loc = .;
#endif
diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S index 97f0c04..edf8715 100644
--- a/arch/arm64/kernel/vmlinux.lds.S
+++ b/arch/arm64/kernel/vmlinux.lds.S
@@ -97,9 +97,9 @@ SECTIONS
PERCPU_SECTION(64)
+ . = ALIGN(PAGE_SIZE);
__init_end = .;
- . = ALIGN(PAGE_SIZE);
_data = .;
_sdata = .;
RW_DATA_SECTION(64, PAGE_SIZE, THREAD_SIZE)
--
1.9.2.msysgit.0
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next prev parent reply other threads:[~2014-09-15 10:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-12 10:05 [PATCH] arm:free_initrd_mem should also free the memblock Wang, Yalin
2014-09-15 2:29 ` [PATCH] arm:extend __init_end to a page align address Wang, Yalin
2014-09-15 10:26 ` Wang, Yalin [this message]
2014-09-15 10:55 ` [RFC Resend] " Russell King - ARM Linux
2014-09-15 13:15 ` Catalin Marinas
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