The patch titled
Subject: mm/page_alloc.c: pull out init code from build_all_zonelists
has been added to the -mm tree. Its filename is
mm-page_allocc-pull-out-init-code-from-build_all_zonelists.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-page_allocc-pull-out-init-code-from-build_all_zonelists.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-page_allocc-pull-out-init-code-from-build_all_zonelists.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
Subject: mm/page_alloc.c: pull out init code from build_all_zonelists
Pulling the code protected by if (system_state == SYSTEM_BOOTING) into
its own helper allows us to shrink .text a little. This relies on
build_all_zonelists already having a __ref annotation. Add a comment
explaining why so one doesn't have to track it down through git log.
The real saving comes in 3/5, ("mm/mm_init.c: Mark mminit_verify_zonelist
as __init"), where we save about 400 bytes
Signed-off-by: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Vishnu Pratap Singh <vishnu.ps@xxxxxxxxxxx>
Cc: Pintu Kumar <pintu.k@xxxxxxxxxxx>
Cc: Michal Nazarewicz <mina86@xxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Cc: Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Tim Chen <tim.c.chen@xxxxxxxxxxxxxx
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Li Zefan <lizefan@xxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)
diff -puN mm/page_alloc.c~mm-page_allocc-pull-out-init-code-from-build_all_zonelists mm/page_alloc.c
--- a/mm/page_alloc.c~mm-page_allocc-pull-out-init-code-from-build_all_zonelists
+++ a/mm/page_alloc.c
@@ -3871,18 +3871,29 @@ static int __build_all_zonelists(void *d
return 0;
}
+static noinline void __init
+build_all_zonelists_init(void)
+{
+ __build_all_zonelists(NULL);
+ mminit_verify_zonelist();
+ cpuset_init_current_mems_allowed();
+}
+
/*
* Called with zonelists_mutex held always
* unless system_state == SYSTEM_BOOTING.
+ *
+ * __ref due to (1) call of __meminit annotated setup_zone_pageset
+ * [we're only called with non-NULL zone through __meminit paths] and
+ * (2) call of __init annotated helper build_all_zonelists_init
+ * [protected by SYSTEM_BOOTING].
*/
void __ref build_all_zonelists(pg_data_t *pgdat, struct zone *zone)
{
set_zonelist_order();
if (system_state == SYSTEM_BOOTING) {
- __build_all_zonelists(NULL);
- mminit_verify_zonelist();
- cpuset_init_current_mems_allowed();
+ build_all_zonelists_init();
} else {
#ifdef CONFIG_MEMORY_HOTPLUG
if (zone)
_
Patches currently in -mm which might be from linux@xxxxxxxxxxxxxxxxxx are
mm-internalh-dont-split-printk-call-in-two.patch
mm-page_allocc-pull-out-init-code-from-build_all_zonelists.patch
mm-mm_initc-mark-mminit_verify_zonelist-as-__init.patch
mm-mm_initc-mark-mminit_loglevel-__meminitdata.patch
kernel-cpusetc-mark-cpuset_init_current_mems_allowed-as-__init.patch
kernelh-remove-ancient-__function__-hack.patch
kernelh-remove-ancient-__function__-hack-fix.patch
lib-vsprintfc-consume-p-in-format_decode.patch
lib-vsprintfc-improve-sanity-check-in-vsnprintf.patch
lib-vsprintfc-replace-while-with-do-while-in-skip_atoi.patch
lib-string_get_size-remove-redundant-prefixes.patch
lib-string_get_size-use-32-bit-arithmetic-when-possible.patch
lib-string_get_size-return-void.patch
lib-bitmap-more-signed-unsigned-conversions.patch
linux-nodemaskh-update-bitmap-wrappers-to-take-unsigned-int.patch
linux-cpumaskh-update-bitmap-wrappers-to-take-unsigned-int.patch
lib-bitmap-update-bitmap_onto-to-unsigned.patch
lib-bitmap-update-bitmap_onto-to-unsigned-checkpatch-fixes.patch
lib-bitmap-change-parameters-of-bitmap_fold-to-unsigned.patch
lib-bitmap-change-parameters-of-bitmap_fold-to-unsigned-fix.patch
lib-bitmap-simplify-bitmap_pos_to_ord.patch
lib-bitmap-simplify-bitmap_ord_to_pos.patch
lib-bitmap-make-the-bits-parameter-of-bitmap_remap-unsigned.patch
lib-remove-strnicmp.patch
lib-interval_treec-simplify-includes.patch
lib-sortc-use-simpler-includes.patch
lib-dynamic_queue_limitsc-simplify-includes.patch
lib-halfmd4c-simplify-includes.patch
lib-idrc-remove-redundant-include.patch
lib-genallocc-remove-redundant-include.patch
lib-list_sortc-rearrange-includes.patch
lib-md5c-simplify-include.patch
lib-llistc-remove-redundant-include.patch
lib-kobject_ueventc-remove-redundant-include.patch
lib-nlattrc-remove-redundant-include.patch
lib-plistc-remove-redundant-include.patch
lib-radix-treec-change-to-simpler-include.patch
lib-show_memc-remove-redundant-include.patch
lib-sortc-move-include-inside-if-0.patch
lib-stmp_devicec-replace-moduleh-include.patch
lib-strncpy_from_userc-replace-moduleh-include.patch
lib-percpu_idac-remove-redundant-includes.patch
lib-lcmc-replace-include.patch
lib-bitmapc-change-prototype-of-bitmap_copy_le.patch
lib-bitmapc-elide-bitmap_copy_le-on-little-endian.patch
lib-bitmap-change-bitmap_shift_right-to-take-unsigned-parameters.patch
lib-bitmap-eliminate-branch-in-__bitmap_shift_right.patch
lib-bitmap-remove-redundant-code-from-__bitmap_shift_right.patch
lib-bitmap-yet-another-simplification-in-__bitmap_shift_right.patch
lib-bitmap-change-bitmap_shift_left-to-take-unsigned-parameters.patch
lib-bitmap-eliminate-branch-in-__bitmap_shift_left.patch
lib-bitmap-remove-redundant-code-from-__bitmap_shift_left.patch
lib-stringc-improve-strrchr.patch
checkpatch-emit-an-error-when-using-predefined-timestamp-macros.patch
linux-next.patch
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