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[PATCH 3/4] arm64: let set_memory_xx(addr, 0) succeed.

From <mika.penttila@nextfour.com>
Newsgroups linux.kernel
Subject [PATCH 3/4] arm64: let set_memory_xx(addr, 0) succeed.
Date 2016-01-23 16:10 +0100
Message-ID <qU7Z8-4tS-1@gated-at.bofh.it> (permalink)
References <qU7Z8-4tS-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Mika Penttilä <mika.penttila@nextfour.com>

This makes set_memory_xx() consistent with x86.

Signed-off-by: Mika Penttilä mika.penttila@nextfour.com

---
 arch/arm64/mm/pageattr.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/mm/pageattr.c b/arch/arm64/mm/pageattr.c
index 3571c73..52220dd 100644
--- a/arch/arm64/mm/pageattr.c
+++ b/arch/arm64/mm/pageattr.c
@@ -51,6 +51,9 @@ static int change_memory_common(unsigned long addr, int numpages,
 		WARN_ON_ONCE(1);
 	}
 
+	if (!numpages)
+		return 0;
+
 	if (start < MODULES_VADDR || start >= MODULES_END)
 		return -EINVAL;
 
-- 
1.9.1

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[PATCH 3/4] arm64: let set_memory_xx(addr, 0) succeed. <mika.penttila@nextfour.com> - 2016-01-23 16:10 +0100
  Re: [PATCH 3/4] arm64: let set_memory_xx(addr, 0) succeed. Laura Abbott <labbott@redhat.com> - 2016-01-25 19:50 +0100
    Re: [PATCH 3/4] arm64: let set_memory_xx(addr, 0) succeed. David Rientjes <rientjes@google.com> - 2016-01-26 03:40 +0100

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