[patch 079/166] mm/mempolicy: add missing annotation for queue_pages_pmd()

Andrew Morton
2020-04-07T03:08:15Z

From: Jules Irenge <jbi.octave@gmail.com>
Subject: mm/mempolicy: add missing annotation for queue_pages_pmd()

Sparse reports a warning at queue_pages_pmd()

context imbalance in queue_pages_pmd() - unexpected unlock

The root cause is the missing annotation at queue_pages_pmd()
Add the missing __releases(ptl)

Link: http://lkml.kernel.org/r/20200214204741.94112-8-jbi.octave@gmail.com
Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

mm/mempolicy.c | 1 +
1 file changed, 1 insertion(+)

--- a/mm/mempolicy.c~mm-mempolicy-add-missing-annotation-for-queue_pages_pmd
+++ a/mm/mempolicy.c
@@ -442,6 +442,7 @@ static inline bool queue_pages_required(
*/
static int queue_pages_pmd(pmd_t *pmd, spinlock_t *ptl, unsigned long addr,
unsigned long end, struct mm_walk *walk)
+ __releases(ptl)
{
int ret = 0;
struct page *page;
_