The patch titled Subject: mm/slub: add missing annotation for get_map() has been added to the -mm tree. Its filename is mm-slub-add-missing-annotation-for-get_map.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/mm-slub-add-missing-annotation-for-get_map.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/mm-slub-add-missing-annotation-for-get_map.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/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Jules Irenge <jbi.octave@xxxxxxxxx> Subject: mm/slub: add missing annotation for get_map() Sparse reports a warning at get_map()() warning: context imbalance in get_map() - wrong count at exit The root cause is the missing annotation at get_map() Add the missing __acquires(&object_map_lock) annotation Link: http://lkml.kernel.org/r/20200214204741.94112-9-jbi.octave@xxxxxxxxx Signed-off-by: Jules Irenge <jbi.octave@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/slub.c | 1 + 1 file changed, 1 insertion(+) --- a/mm/slub.c~mm-slub-add-missing-annotation-for-get_map +++ a/mm/slub.c @@ -449,6 +449,7 @@ static DEFINE_SPINLOCK(object_map_lock); * not vanish from under us. */ static unsigned long *get_map(struct kmem_cache *s, struct page *page) + __acquires(&object_map_lock) { void *p; void *addr = page_address(page); _ 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