[dm-devel] [PATCH] multipath-tools: document missing multipathd option at man page

[Xose Vazquez Perez]

 -w was added in 2858c60a34527401381ea6b13cf316c3e5064383

Cc: Benjamin Marzinski <bmarzins at redhat.com>
Cc: Christophe Varoqui <christophe.varoqui at opensvc.com>
Cc: DM-DEVEL ML <dm-devel at redhat.com>
Signed-off-by: Xose Vazquez Perez <xose.vazquez at gmail.com>
---
 multipathd/multipathd.8 | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/multipathd/multipathd.8 b/multipathd/multipathd.8
index 94c3f97..edac7a9 100644
--- a/multipathd/multipathd.8
+++ b/multipathd/multipathd.8
@@ -25,6 +25,7 @@ multipathd \- Multipath daemon.
 .RB [\| \-v\ \c
 .IR verbosity \|]
 .RB [\| \-B \|]
+.RB [\| \-w \|]
 .
 .
 .\" ----------------------------------------------------------------------------
@@ -77,6 +78,12 @@ be viewed by entering '\fIhelp\fR'. When you are finished entering commands, pre
 multipathd. See
 .BR multipath.conf(5).
 .
+.TP
+.B \-w
+Since kernel 4.14 a new device-mapper event polling interface is used for updating
+multipath devices on dmevents. Use this flag to force it to use the old event
+waiting method, based on creating a seperate thread for each device.
+.
 .
 .
 .\" ----------------------------------------------------------------------------
-- 
2.21.0