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authorPavel Begunkov <asml.silence@gmail.com>2024-03-03 23:59:17 +0000
committerJens Axboe <axboe@kernel.dk>2024-03-04 05:29:41 -0700
commit7dccf035cbca029f2ca863aaa074aa75a9d61fec (patch)
treeee06a11e4ad44429bed3c74594099234ef6c7443
parent2b353a85abed9d19201bd947f3efca6a630e476a (diff)
downloadliburing-7dccf035cbca029f2ca863aaa074aa75a9d61fec.tar.gz
man/io_uring_setup.2: document IORING_SETUP_NO_SQARRAY
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/dc574ee0e7eebe7deb691ddb18b9643495ea8331.1709510250.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--man/io_uring_setup.212
1 files changed, 12 insertions, 0 deletions
diff --git a/man/io_uring_setup.2 b/man/io_uring_setup.2
index c86f2e73..f65c1f29 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