[liburing] man/io_uring_setup.2: document IORING_SETUP_NO_SQARRAY

Commit Message

Pavel Begunkov March 3, 2024, 11:59 p.m. UTC

Signed-off-by: Pavel Begunkov <[e-mail]>
---
 man/io_uring_setup.2 | 12 ++++++++++++
 1 file changed, 12 insertions(+)

Comments

Jens Axboe March 4, 2024, 12:29 p.m. UTC | #1

On Sun, 03 Mar 2024 23:59:17 +0000, Pavel Begunkov wrote:
> 


Applied, thanks!

[1/1] man/io_uring_setup.2: document IORING_SETUP_NO_SQARRAY
      commit: 7dccf035cbca029f2ca863aaa074aa75a9d61fec

Best regards,

Patch

diff --git a/man/io_uring_setup.2 b/man/io_uring_setup.2
index c86f2e7..f65c1f2 100644
--- a/man/io_uring_setup.2
+++ b/man/io_uring_setup.2
@@ -327,6 +327,18 @@  when calling
 .BR io_uring_register (2).
 Available since 6.5.
 
+.TP
+.B IORING_SETUP_NO_SQARRAY
+If this flag is set, entries in the submission queue will be submitted in order,
+wrapping around to the first entry after reaching the end of the queue. In other
+words, there will be no more indirection via the array of submission entries,
+and the queue will be indexed directly by the submission queue tail and the
+range of indexed represented by it modulo queue size. Subsequently, the user
+should not map the array of submission queue entries, and the corresponding
+offset in
+.I struct io_sqring_offsets
+will be set to zero. Available since 6.6.
+
 .PP
 If no flags are specified, the io_uring instance is setup for
 interrupt driven I/O.  I/O may be submitted using