[dm-devel] [PATCH] multipathd: fail path when path check timeout

[tang.junhui at zte.com.cn]

Please have a review for this patch, any comment will be highly 
appreciated.




发件人:         tang.junhui at zte.com.cn
收件人:         christophe varoqui <christophe.varoqui at free.fr>, 
抄送:   dm-devel at redhat.com, zhang.kai16 at zte.com.cn, "tang.junhui" 
<tang.junhui at zte.com.cn>
日期:   2016/08/10 16:11
主题:   [PATCH] multipathd: fail path when path check timeout



From: "tang.junhui" <tang.junhui at zte.com.cn>

path should be failed when path status is PATH_TIMEOUT after check,
otherwise, the valid number of paths in the map would be increased when
the path status is PATH_UP after the next turn check, which would cause
the valid number of paths exceeding the total number of paths in the map.

Signed-off-by: tang.junhui <tang.junhui at zte.com.cn>
---
 multipathd/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/multipathd/main.c b/multipathd/main.c
index f5e9a01..01f1e58 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -1585,7 +1585,7 @@ check_path (struct vectors * vecs, struct path * pp, 
int ticks)
                                 pp->checkint = conf->checkint;
                                 put_multipath_config(conf);
 
-                                if (newstate == PATH_DOWN || newstate == 
PATH_SHAKY) {
+                                if (newstate == PATH_DOWN || newstate == 
PATH_SHAKY || newstate == PATH_TIMEOUT) {
                                                 /*
                                                  * proactively fail path 
in the DM
                                                  */
-- 
2.8.1.windows.1



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