The patch titled
Subject: mm/hugetlb: add missing annotation for gather_surplus_pages()
has been added to the -mm tree. Its filename is
mm-hugetlb-add-missing-annotation-for-gather_surplus_pages.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-hugetlb-add-missing-annotation-for-gather_surplus_pages.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-hugetlb-add-missing-annotation-for-gather_surplus_pages.patch
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------------------------------------------------------
From: Jules Irenge <jbi.octave@xxxxxxxxx>
Subject: mm/hugetlb: add missing annotation for gather_surplus_pages()
Sparse reports a warning at gather_surplus_pages()
warning: context imbalance in hugetlb_cow() - unexpected unlock
The root cause is the missing annotation at gather_surplus_pages()
Add the missing __must_hold(&hugetlb_lock)
Link: http://lkml.kernel.org/r/20200214204741.94112-7-jbi.octave@xxxxxxxxx
Signed-off-by: Jules Irenge <jbi.octave@xxxxxxxxx>
Reviewed-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/hugetlb.c | 1 +
1 file changed, 1 insertion(+)
--- a/mm/hugetlb.c~mm-hugetlb-add-missing-annotation-for-gather_surplus_pages
+++ a/mm/hugetlb.c
@@ -1910,6 +1910,7 @@ struct page *alloc_huge_page_vma(struct
* of size 'delta'.
*/
static int gather_surplus_pages(struct hstate *h, int delta)
+ __must_hold(&hugetlb_lock)
{
struct list_head surplus_list;
struct page *page, *tmp;
_
Patches currently in -mm which might be from jbi.octave@xxxxxxxxx are
ocfs2-add-missing-annotations-for-ocfs2_refcount_cache_lock-and-ocfs2_refcount_cache_unlock.patch
mm-memcontrol-add-missing-annotation-for-unlock_page_lru.patch
mm-memcontrol-add-missing-annotation-for-lock_page_lru.patch
mm-compaction-add-missing-annotation-for-compact_lock_irqsave.patch
mm-hugetlb-add-missing-annotation-for-gather_surplus_pages.patch
mm-mempolicy-add-missing-annotation-for-queue_pages_pmd.patch
mm-slub-add-missing-annotation-for-get_map.patch
mm-slub-add-missing-annotation-for-put_map.patch
mm-zsmalloc-add-missing-annotation-for-migrate_read_lock.patch
mm-zsmalloc-add-missing-annotation-for-migrate_read_unlock.patch
mm-zsmalloc-add-missing-annotation-for-pin_tag.patch
mm-zsmalloc-add-missing-annotation-for-unpin_tag.patch
