[PATCH v4 3/3] io_submit.2: Document RWF_ATOMIC

John Garry
2024-07-17T09:38:56Z

Document RWF_ATOMIC for asynchronous I/O.

Signed-off-by: John Garry <john.g.garry@oracle.com>
---
man/man2/io_submit.2 | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)

diff --git a/man/man2/io_submit.2 b/man/man2/io_submit.2
index c53ae9aaf..12b4a72d7 100644
--- a/man/man2/io_submit.2
+++ b/man/man2/io_submit.2
@@ -140,6 +140,25 @@ as well the description of
.B O_SYNC
in
.BR open (2).
+.TP
+.BR RWF_ATOMIC " (since Linux 6.11)"
+Write a block of data such that a write will never be torn from power fail or
+similar.
+See the description of
+.B RWF_ATOMIC
+in
+.BR pwritev2 (2).
+For usage with
+.BR IOCB_CMD_PWRITEV,
+the upper vector limit is in
+.I stx_atomic_write_segments_max.
+See
+.B STATX_WRITE_ATOMIC
+and
+.I stx_atomic_write_segments_max
+description
+in
+.BR statx (2).
.RE
.TP
.I aio_lio_opcode
--
2.31.1