From: ard.biesheuvel@linaro.org (Ard Biesheuvel)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 2/9] arm64: mm: free __init memory via the linear mapping
Date: Wed, 30 Mar 2016 16:45:57 +0200 [thread overview]
Message-ID: <1459349164-27175-3-git-send-email-ard.biesheuvel@linaro.org> (raw)
In-Reply-To: <1459349164-27175-1-git-send-email-ard.biesheuvel@linaro.org>
The implementation of free_initmem_default() expects __init_begin
and __init_end to be covered by the linear mapping, which is no
longer the case. So open code it instead, using addresses that are
explicitly translated from kernel virtual to linear virtual.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
arch/arm64/mm/init.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 82ced5fa1e66..89376f3c65a3 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -452,7 +452,8 @@ void __init mem_init(void)
void free_initmem(void)
{
- free_initmem_default(0);
+ free_reserved_area(__va(__pa(__init_begin)), __va(__pa(__init_end)),
+ 0, "unused kernel");
fixup_init();
}
--
2.5.0
next prev parent reply other threads:[~2016-03-30 14:45 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-30 14:45 [PATCH v2 0/9] arm64: optimize virt_to_page and page_address Ard Biesheuvel
2016-03-30 14:45 ` [PATCH v2 1/9] arm64: vdso: avoid virt_to_page() translations on kernel symbols Ard Biesheuvel
2016-03-30 14:45 ` Ard Biesheuvel [this message]
2016-03-30 14:45 ` [PATCH v2 3/9] arm64: mm: avoid virt_to_page() translation for the zero page Ard Biesheuvel
2016-03-30 14:45 ` [PATCH v2 4/9] arm64: insn: avoid virt_to_page() translations on core kernel symbols Ard Biesheuvel
2016-03-30 14:46 ` [PATCH v2 5/9] arm64: mm: move vmemmap region right below the linear region Ard Biesheuvel
2016-03-30 14:46 ` [PATCH v2 6/9] arm64: mm: restrict virt_to_page() to the linear mapping Ard Biesheuvel
2016-03-30 14:46 ` [PATCH v2 7/9] nios2: use correct void* return type for page_to_virt() Ard Biesheuvel
2016-03-30 14:46 ` [PATCH v2 8/9] openrisc: drop wrongly typed definition of page_to_virt() Ard Biesheuvel
2016-03-30 14:46 ` [PATCH v2 9/9] mm: replace open coded page to virt conversion with page_to_virt() Ard Biesheuvel
2016-04-14 15:25 ` Will Deacon
2016-04-14 15:33 ` Ard Biesheuvel
-- strict thread matches above, loose matches on Subject: below --
2016-02-29 14:44 [PATCH v2 0/9] arm64: optimize virt_to_page and page_address Ard Biesheuvel
2016-02-29 14:44 ` [PATCH v2 2/9] arm64: mm: free __init memory via the linear mapping Ard Biesheuvel
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