* [PATCH liburing] Document maximum ring size for io_uring_register_buf_ring
@ 2022-10-20 11:51 Dylan Yudaken
2022-10-20 12:47 ` Jens Axboe
0 siblings, 1 reply; 2+ messages in thread
From: Dylan Yudaken @ 2022-10-20 11:51 UTC (permalink / raw)
To: Jens Axboe, Pavel Begunkov; +Cc: io-uring, Dylan Yudaken, Frank Rehwinkel
The maximum size was not documented, so do that.
Reported-by: Frank Rehwinkel <[email protected]>
Signed-off-by: Dylan Yudaken <[email protected]>
---
man/io_uring_register_buf_ring.3 | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/man/io_uring_register_buf_ring.3 b/man/io_uring_register_buf_ring.3
index f75063fc9f2c..357a3fb39a0c 100644
--- a/man/io_uring_register_buf_ring.3
+++ b/man/io_uring_register_buf_ring.3
@@ -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
base-commit: 13f3fe3af811d8508676dbd1ef552f2b459e1b21
--
2.30.2
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH liburing] Document maximum ring size for io_uring_register_buf_ring
2022-10-20 11:51 [PATCH liburing] Document maximum ring size for io_uring_register_buf_ring Dylan Yudaken
@ 2022-10-20 12:47 ` Jens Axboe
0 siblings, 0 replies; 2+ messages in thread
From: Jens Axboe @ 2022-10-20 12:47 UTC (permalink / raw)
To: Dylan Yudaken, Pavel Begunkov; +Cc: io-uring, Frank Rehwinkel
On Thu, 20 Oct 2022 04:51:41 -0700, Dylan Yudaken wrote:
> The maximum size was not documented, so do that.
>
>
Applied, thanks!
[1/1] Document maximum ring size for io_uring_register_buf_ring
(no commit info)
Best regards,
--
Jens Axboe
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