[patch 083/166] mm/zsmalloc: add missing annotation for migrate_read_unlock()

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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);
 }
_




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