Add support for O_ATOMIC

[fio.git] / fio.1

diff --git a/fio.1 b/fio.1
index e910e0102e76ff756c3cd85217df3d6123ba3a54..15a1ac5d00a42b59bfe6596e60074a3ef4009537 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -569,6 +569,11 @@ Low watermark indicating when to start filling the queue again.  Default:
 .BI direct \fR=\fPbool
 If true, use non-buffered I/O (usually O_DIRECT).  Default: false.
 .TP
+.BI atomic \fR=\fPbool
+If value is true, attempt to use atomic direct IO. Atomic writes are guaranteed
+to be stable once acknowledged by the operating system. Only Linux supports
+O_ATOMIC right now.
+.TP
 .BI buffered \fR=\fPbool
 If true, use buffered I/O.  This is the opposite of the \fBdirect\fR parameter.
 Default: true.