From: Helge Deller <deller@gmx.de>
To: linux-parisc@vger.kernel.org,
James Bottomley <James.Bottomley@hansenpartnership.com>,
John David Anglin <dave.anglin@bell.net>
Subject: [PATCH] parisc: Allow live-patching of __meminit functions
Date: Wed, 1 May 2019 14:59:58 +0200 [thread overview]
Message-ID: <20190501125958.GA8511@ls3530.dellerweb.de> (raw)
When making the text sections writeable with set_kernel_text_rw(1),
include all text sections including those in the __init section.
Otherwise functions marked with __meminit will stay read-only.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # 4.20+
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 78e451ce0f1b..79afd9600cca 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -477,7 +477,7 @@ static void __init map_pages(unsigned long start_vaddr,
void __init set_kernel_text_rw(int enable_read_write)
{
- unsigned long start = (unsigned long) _text;
+ unsigned long start = (unsigned long) __init_begin;
unsigned long end = (unsigned long) &data_start;
map_pages(start, __pa(start), end-start,
reply other threads:[~2019-05-01 13:00 UTC|newest]
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