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-rw-r--r--mm/cma.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/mm/cma.c b/mm/cma.c
index 94b5da468a7d..15cc0ae76c8e 100644
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -1013,6 +1013,7 @@ bool cma_release(struct cma *cma, const struct page *pages,
unsigned long count)
{
struct cma_memrange *cmr;
+ unsigned long ret = 0;
unsigned long i, pfn;
cmr = find_cma_memrange(cma, pages, count);
@@ -1021,7 +1022,9 @@ bool cma_release(struct cma *cma, const struct page *pages,
pfn = page_to_pfn(pages);
for (i = 0; i < count; i++, pfn++)
- VM_WARN_ON(!put_page_testzero(pfn_to_page(pfn)));
+ ret += !put_page_testzero(pfn_to_page(pfn));
+
+ WARN(ret, "%lu pages are still in use!\n", ret);
__cma_release_frozen(cma, cmr, pages, count);