Document maximum ring size for io_uring_register_buf_ring
The maximum size was not documented, so do that.
Reported-by: Frank Rehwinkel
Link:
[axboe: kill end-of-line whitespace]
@@ -55,7 +55,8 @@ or similar. The size of the ring is the product of
and the size of
.IR "struct io_uring_buf" .
.I ring_entries
-is the desired size of the ring, and must be a power-of-2 in size.
+is the desired size of the ring, and must be a power-of-2 in size. The maximum
+size allowed is 2^15 (32768).
.I bgid
is the buffer group ID associated with this ring. SQEs that select a buffer
has a buffer group associated with them in their
