The patch titled
Subject: mm/zsmalloc: add missing annotation for migrate_read_lock()
has been added to the -mm tree. Its filename is
mm-zsmalloc-add-missing-annotation-for-migrate_read_lock.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-zsmalloc-add-missing-annotation-for-migrate_read_lock.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-zsmalloc-add-missing-annotation-for-migrate_read_lock.patch
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------------------------------------------------------
From: Jules Irenge <jbi.octave@xxxxxxxxx>
Subject: mm/zsmalloc: add missing annotation for migrate_read_lock()
Sparse reports a warning at migrate_read_lock()()
warning: context imbalance in migrate_read_lock() - wrong count at exit
The root cause is the missing annotation at migrate_read_lock()
Add the missing __acquires(&zspage->lock) annotation
Link: http://lkml.kernel.org/r/20200214204741.94112-11-jbi.octave@xxxxxxxxx
Signed-off-by: Jules Irenge <jbi.octave@xxxxxxxxx>
Acked-by: Minchan Kim <minchan@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/zsmalloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/zsmalloc.c~mm-zsmalloc-add-missing-annotation-for-migrate_read_lock
+++ a/mm/zsmalloc.c
@@ -1833,7 +1833,7 @@ static void migrate_lock_init(struct zsp
rwlock_init(&zspage->lock);
}
-static void migrate_read_lock(struct zspage *zspage)
+static void migrate_read_lock(struct zspage *zspage) __acquires(&zspage->lock)
{
read_lock(&zspage->lock);
}
_
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
