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From: Pavel Begunkov <[email protected]>
To: [email protected]
Cc: Jens Axboe <[email protected]>, [email protected]
Subject: [PATCH liburing] man/io_uring_setup.2: document IORING_SETUP_NO_SQARRAY
Date: Sun,  3 Mar 2024 23:59:17 +0000	[thread overview]
Message-ID: <dc574ee0e7eebe7deb691ddb18b9643495ea8331.1709510250.git.asml.silence@gmail.com> (raw)

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

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
-- 
2.43.0


             reply	other threads:[~2024-03-04  0:00 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-03 23:59 Pavel Begunkov [this message]
2024-03-04 12:29 ` [PATCH liburing] man/io_uring_setup.2: document IORING_SETUP_NO_SQARRAY Jens Axboe

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