Subject: + mm-hugetlb-mark-some-bootstrap-functions-as-__init.patch added to -mm tree
To: rientjes@xxxxxxxxxx,davidlohr@xxxxxx,iamjoonsoo.kim@xxxxxxx,mhocko@xxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Tue, 04 Feb 2014 16:34:08 -0800
The patch titled
Subject: mm, hugetlb: mark some bootstrap functions as __init
has been added to the -mm tree. Its filename is
mm-hugetlb-mark-some-bootstrap-functions-as-__init.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-hugetlb-mark-some-bootstrap-functions-as-__init.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-hugetlb-mark-some-bootstrap-functions-as-__init.patch
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From: David Rientjes <rientjes@xxxxxxxxxx>
Subject: mm, hugetlb: mark some bootstrap functions as __init
Both prep_compound_huge_page() and prep_compound_gigantic_page() are only
called at bootstrap and can be marked as __init.
The __SetPageTail(page) in prep_compound_gigantic_page() happening before
page->first_page is initialized is not concerning since this is bootstrap.
Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Reviewed-by: Davidlohr Bueso <davidlohr@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/hugetlb.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff -puN mm/hugetlb.c~mm-hugetlb-mark-some-bootstrap-functions-as-__init mm/hugetlb.c
--- a/mm/hugetlb.c~mm-hugetlb-mark-some-bootstrap-functions-as-__init
+++ a/mm/hugetlb.c
@@ -689,7 +689,8 @@ static void prep_new_huge_page(struct hs
put_page(page); /* free it into the hugepage allocator */
}
-static void prep_compound_gigantic_page(struct page *page, unsigned long order)
+static void __init prep_compound_gigantic_page(struct page *page,
+ unsigned long order)
{
int i;
int nr_pages = 1 << order;
@@ -1319,7 +1320,7 @@ found:
return 1;
}
-static void prep_compound_huge_page(struct page *page, int order)
+static void __init prep_compound_huge_page(struct page *page, int order)
{
if (unlikely(order > (MAX_ORDER - 1)))
prep_compound_gigantic_page(page, order);
_
Patches currently in -mm which might be from rientjes@xxxxxxxxxx are
documentation-kernel-parameterstxt-fix-memmap=-language.patch
mm-__set_page_dirty_nobuffers-uses-spin_lock_irqseve-instead-of-spin_lock_irq.patch
mm-slub-list_lock-may-not-be-held-in-some-circumstances.patch
fs-filec-fdtable-avoid-triggering-ooms-from-alloc_fdmem.patch
mm-page_alloc-make-first_page-visible-before-pagetail.patch
numa-mem-hotplug-initialize-numa_kernel_nodes-in-numa_clear_kernel_node_hotplug.patch
numa-mem-hotplug-fix-array-index-overflow-when-synchronizing-nid-to-memblockreserved.patch
kthread-ensure-locality-of-task_struct-allocations.patch
mm-compaction-ignore-pageblock-skip-when-manually-invoking-compaction.patch
mm-vmscan-shrink_slab-rename-max_pass-freeable.patch
mm-hugetlb-mark-some-bootstrap-functions-as-__init.patch
mm-utilc-add-kstrimdup.patch
cpusets-allocate-heap-only-when-required.patch
linux-next.patch
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