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-rw-r--r--io_uring/kbuf.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/io_uring/kbuf.h b/io_uring/kbuf.h
index 43c7b18244b3..4c34ff3144b9 100644
--- a/io_uring/kbuf.h
+++ b/io_uring/kbuf.h
@@ -121,6 +121,9 @@ static inline bool io_kbuf_recycle(struct io_kiocb *req, unsigned issue_flags)
return false;
}
+/* Mapped buffer ring, return io_uring_buf from head */
+#define io_ring_head_to_buf(br, head, mask) &(br)->bufs[(head) & (mask)]
+
static inline void io_kbuf_commit(struct io_kiocb *req,
struct io_buffer_list *bl, int nr)
{