[dm-devel] [PATCH] multipath: set ACT_RESIZE when the size has changed

[Benjamin Marzinski]

When the multipath path devices change size, multipath can't be reloaded
with noflush set.  So, don't set the action to ACT_RELOAD, which will
cause the multipath device to get stuck in SUSPEND. Use ACT_RESIZE.

Also, I was seeing some messages that were getting cut off with the
128 byte messages size, so I doubled that, and the log area size.

Signed-off-by: Benjamin Marzinski <bmarzins at redhat.com>
---
 libmultipath/configure.c |    4 ++--
 libmultipath/log.h       |    4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

Index: multipath-tools-111010/libmultipath/configure.c
===================================================================
--- multipath-tools-111010.orig/libmultipath/configure.c
+++ multipath-tools-111010/libmultipath/configure.c
@@ -193,8 +193,8 @@ select_action (struct multipath * mpp, v
 		return;
 	}
 	if (cmpp->size != mpp->size) {
-		mpp->action = ACT_RELOAD;
-		condlog(3, "%s: set ACT_RELOAD (size change)",
+		mpp->action = ACT_RESIZE;
+		condlog(3, "%s: set ACT_RESIZE (size change)",
 			mpp->alias);
 		return;
 	}
Index: multipath-tools-111010/libmultipath/log.h
===================================================================
--- multipath-tools-111010.orig/libmultipath/log.h
+++ multipath-tools-111010/libmultipath/log.h
@@ -1,8 +1,8 @@
 #ifndef LOG_H
 #define LOG_H
 
-#define DEFAULT_AREA_SIZE 8192
-#define MAX_MSG_SIZE 128
+#define DEFAULT_AREA_SIZE 16384
+#define MAX_MSG_SIZE 256
 
 #ifndef LOGLEVEL
 #define LOGLEVEL 5