[PATCH v3 2/2] Documentation: update the documentation to include the page_fault engine

[Nico Pache <npache@redhat.com>]

Document the new page fault engine.

Signed-off-by: Nico Pache <npache@redhat.com>
---
 HOWTO.rst | 5 +++++
 fio.1     | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/HOWTO.rst b/HOWTO.rst
index 5e3266df..bb97ee22 100644
--- a/HOWTO.rst
+++ b/HOWTO.rst
@@ -2379,6 +2379,11 @@ I/O engine
 			several instances to access the same device or file
 			simultaneously, but allow it for threads.
 
+		**page_fault**
+			I/O engine that uses an mmap region to simulate data transfer by
+			allocating anonymous memory and copying data on read/write to
+			intentionally trigger page faults.
+
 	File/directory operation engines define how the job operates file or directory. The
 	following types are defined:
 
diff --git a/fio.1 b/fio.1
index 664d7e3b..14ea6427 100644
--- a/fio.1
+++ b/fio.1
@@ -2168,6 +2168,11 @@ instance is used per process, so all jobs setting option \fBthread\fR will share
 a single instance (with one queue per thread) and must specify compatible
 options. Note that some drivers don't allow several instances to access the same
 device or file simultaneously, but allow it for threads.
+.TP
+.B page_fault
+I/O engine that uses an mmap region to simulate data transfer by allocating
+anonymous memory and copying data on read/write to intentionally trigger page
+faults.
 .RE
 .P
 File/directory operation engines define how the job operates file or directory.
-- 
2.53.0