Re: [PATCH 5/5] prevent getting started up or shutdown again while already in such state

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On Sun, 16 Aug 2009, Steffen Maier wrote:

Essential with all the correct error handling in place.
---
storage/zfcp.py |    9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/storage/zfcp.py b/storage/zfcp.py
index b948eb5..c98c3ca 100644
--- a/storage/zfcp.py
+++ b/storage/zfcp.py
@@ -190,6 +190,7 @@ class ZFCP:
    def __init__(self):
        self.fcpdevs = []
        self.hasReadConfig = False
+        self.down = True

    def readConfig(self):
        try:
@@ -234,6 +235,9 @@ class ZFCP:
            self.fcpdevs.append(d)

    def shutdown(self):
+        if self.down:
+            return
+        self.down = True
        if len(self.fcpdevs) == 0:
            return
        for d in self.fcpdevs:
@@ -243,9 +247,14 @@ class ZFCP:
                log.warn(str(e))

    def startup(self):
+        if not self.down:
+            return
+        self.down = False
        if not self.hasReadConfig:
            self.readConfig()
            self.hasReadConfig = True
+            # readConfig calls addFCP which calls onlineDevice already
+            return

        if len(self.fcpdevs) == 0:
            return


Applied to master.  Thanks.

- -- David Cantrell <dcantrell@xxxxxxxxxx>
Red Hat / Honolulu, HI

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