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-rw-r--r--io_uring/memmap.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/io_uring/memmap.h b/io_uring/memmap.h
index a6c63ca2c6f1..a39d9e518905 100644
--- a/io_uring/memmap.h
+++ b/io_uring/memmap.h
@@ -43,4 +43,9 @@ static inline void io_region_publish(struct io_ring_ctx *ctx,
*dst_region = *src_region;
}
+static inline size_t io_region_size(struct io_mapped_region *mr)
+{
+ return (size_t) mr->nr_pages << PAGE_SHIFT;
+}
+
#endif