Patch "parisc: Increase initial kernel mapping size" has been added to the 4.4-stable tree
From: <gregkh@linuxfoundation.org>
Date: 2016-10-26 07:17:13
This is a note to let you know that I've just added the patch titled
parisc: Increase initial kernel mapping size
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
parisc-increase-initial-kernel-mapping-size.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let [off-list ref] know about it.
From 65bf34f59594c11f13d371c5334a6a0a385cd7ae Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de> Date: Sun, 9 Oct 2016 09:57:54 +0200 Subject: parisc: Increase initial kernel mapping size From: Helge Deller <deller@gmx.de> commit 65bf34f59594c11f13d371c5334a6a0a385cd7ae upstream. Increase the initial kernel default page mapping size for 64-bit kernels to 64 MB and for 32-bit kernels to 32 MB. Due to the additional support of ftrace, tracepoint and huge pages the kernel size can exceed the sizes we used up to now. Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- arch/parisc/include/asm/pgtable.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h@@ -83,10 +83,10 @@ static inline void purge_tlb_entries(str printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, (unsigned long)pgd_val(e)) /* This is the size of the initially mapped kernel memory */ -#if defined(CONFIG_64BIT) || defined(CONFIG_SMP) -#define KERNEL_INITIAL_ORDER 25 /* 1<<25 = 32MB */ +#if defined(CONFIG_64BIT) +#define KERNEL_INITIAL_ORDER 26 /* 1<<26 = 64MB */ #else -#define KERNEL_INITIAL_ORDER 24 /* 1<<24 = 16MB */ +#define KERNEL_INITIAL_ORDER 25 /* 1<<25 = 32MB */ #endif #define KERNEL_INITIAL_SIZE (1 << KERNEL_INITIAL_ORDER)
Patches currently in stable-queue which might be from deller@gmx.de are queue-4.4/parisc-fix-kernel-memory-layout-regarding-position-of-__gp.patch queue-4.4/parisc-increase-initial-kernel-mapping-size.patch queue-4.4/parisc-increase-kernel_initial_size-for-32-bit-smp-kernels.patch