X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=fio.1;h=ed492682fde0a1a3a9f3498a80a46959879454b8;hb=72a675953c87f748ef83bf9f7c3f3a0a868da16d;hp=bf181b345548414865d7d138ba38c372b1619941;hpb=350a535d23c07b19f6358ac4d7593d0f905f428b;p=fio.git

diff --git a/fio.1 b/fio.1
index bf181b34..ed492682 100644
--- a/fio.1
+++ b/fio.1
@@ -2070,8 +2070,15 @@ changing data and the overlapping region has a non-zero size. Setting
 \fBserialize_overlap\fR tells fio to avoid provoking this behavior by explicitly
 serializing in-flight I/Os that have a non-zero overlap. Note that setting
 this option can reduce both performance and the \fBiodepth\fR achieved.
-Additionally this option does not work when \fBio_submit_mode\fR is set to
-offload. Default: false.
+.RS
+.P
+This option only applies to I/Os issued for a single job except when it is
+enabled along with \fBio_submit_mode\fR=offload. In offload mode, fio
+will check for overlap among all I/Os submitted by offload jobs with \fBserialize_overlap\fR
+enabled.
+.P
+Default: false.
+.RE
 .TP
 .BI io_submit_mode \fR=\fPstr
 This option controls how fio submits the I/O to the I/O engine. The default