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Diffstat (limited to 'mm/cma.c')
-rw-r--r--mm/cma.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/mm/cma.c b/mm/cma.c
index acd6991f77a0..b44a71eb3174 100644
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -435,13 +435,13 @@ struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align,
int ret = -ENOMEM;
if (!cma || !cma->count || !cma->bitmap)
- return NULL;
+ goto out;
pr_debug("%s(cma %p, count %zu, align %d)\n", __func__, (void *)cma,
count, align);
if (!count)
- return NULL;
+ goto out;
mask = cma_bitmap_aligned_mask(cma, align);
offset = cma_bitmap_aligned_offset(cma, align);
@@ -449,7 +449,7 @@ struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align,
bitmap_count = cma_bitmap_pages_to_bits(cma, count);
if (bitmap_count > bitmap_maxno)
- return NULL;
+ goto out;
for (;;) {
spin_lock_irq(&cma->lock);
@@ -506,6 +506,12 @@ struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align,
}
pr_debug("%s(): returned %p\n", __func__, page);
+out:
+ if (page)
+ count_vm_event(CMA_ALLOC_SUCCESS);
+ else
+ count_vm_event(CMA_ALLOC_FAIL);
+
return page;
}