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[v2,2/9] arm64: mm: free __init memory via the linear mapping

Message ID 1459349164-27175-3-git-send-email-ard.biesheuvel@linaro.org
State Accepted
Commit d386825c959efeaae3315c25dd2d2874c68829c7
Headers show

Commit Message

Ard Biesheuvel March 30, 2016, 2:45 p.m. UTC 
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(-)

-- 
2.5.0


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diff mbox

Patch

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();
 }