The patch titled Subject: mm/zsmalloc: add missing annotation for migrate_read_unlock() has been added to the -mm tree. Its filename is mm-zsmalloc-add-missing-annotation-for-migrate_read_unlock.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/mm-zsmalloc-add-missing-annotation-for-migrate_read_unlock.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/mm-zsmalloc-add-missing-annotation-for-migrate_read_unlock.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/zsmalloc: add missing annotation for migrate_read_unlock() Sparse reports a warning at migrate_read_unlock()() warning: context imbalance in migrate_read_unlock() - unexpected unlock The root cause is the missing annotation at migrate_read_unlock() Add the missing __releases(&zspage->lock) annotation Link: http://lkml.kernel.org/r/20200214204741.94112-12-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_unlock +++ a/mm/zsmalloc.c @@ -1838,7 +1838,7 @@ static void migrate_read_lock(struct zsp read_lock(&zspage->lock); } -static void migrate_read_unlock(struct zspage *zspage) +static void migrate_read_unlock(struct zspage *zspage) __releases(&zspage->lock) { read_unlock(&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