The patch titled
sparsemem: reduce i386 PAE section size
has been added to the -mm tree. Its filename is
sparsemem-reduce-i386-pae-section-size.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: sparsemem: reduce i386 PAE section size
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
A 1G section size makes memory hotplug too coarse in a virtual environment.
Retuce it by a factor of 2 to 512M. I would have liked to make it smaller,
but it runs out of reserved flags in the page flags.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Yasunori Goto <y-goto@xxxxxxxxxxxxxx>
Cc: Christoph Lameter <clameter@xxxxxxx>
Cc: Dave Hansen <dave@xxxxxxxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/asm-x86/sparsemem.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN include/asm-x86/sparsemem.h~sparsemem-reduce-i386-pae-section-size include/asm-x86/sparsemem.h
--- a/include/asm-x86/sparsemem.h~sparsemem-reduce-i386-pae-section-size
+++ a/include/asm-x86/sparsemem.h
@@ -16,7 +16,7 @@
#ifdef CONFIG_X86_32
# ifdef CONFIG_X86_PAE
-# define SECTION_SIZE_BITS 30
+# define SECTION_SIZE_BITS 29
# define MAX_PHYSADDR_BITS 36
# define MAX_PHYSMEM_BITS 36
# else
_
Patches currently in -mm which might be from jeremy@xxxxxxxx are
origin.patch
git-x86.patch
sparsemem-vmemmap-does-not-need-section-bits.patch
kbuild-create-a-way-to-create-preprocessor-constants-from-c-expressions.patch
pageflags-use-an-enum-for-the-flags.patch
pageflags-get-rid-of-flags_reserved.patch
pageflags-introduce-macros-to-generate-page-flag-functions.patch
pageflags-convert-to-the-use-of-new-macros.patch
pageflags-use-proper-page-flag-functions-in-xen.patch
pageflags-eliminate-pg_xxx-aliases.patch
hotplug-memory-add-add_memory_resource.patch
hotplug-memory-adding-non-section-aligned-memory-is-bad.patch
sparsemem-reduce-i386-pae-section-size.patch
paravirt_ops-dont-steal-memory-resources-in-paravirt_disable_iospace.patch
xen-make-blkif_getgeo-static.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
