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From f06103354394ffa86817696a37edb7ddd351bc10 Mon Sep 17 00:00:00 2001
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From: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
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Date: Fri, 9 Feb 2018 17:20:26 +0530
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Subject: [PATCH] create: remove stale hba-only dir
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curretly if there exist any stale hba-only directories,
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$ ls /sys/kernel/config/target/core/user_0/
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hba_info hba_mode
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Then backend creation fails,
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$ targetcli /backstores/fileio create block file 1M
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This _Backstore already exists in configFS
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We will have to restart target.service or restore the configuration
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again to clear the stale hba-only dirs.
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This patch checks for hba directory before creating one,
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if it is already existing and found to be stale then removes it.
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Thanks to "Maurizio Lombardi <mlombard@redhat.com>" for debugging along
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Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
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---
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rtslib/node.py | 11 +++++++++--
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1 file changed, 9 insertions(+), 2 deletions(-)
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diff --git a/rtslib/node.py b/rtslib/node.py
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index c0092fc..1d77cd1 100644
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--- a/rtslib/node.py
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+++ b/rtslib/node.py
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@@ -52,9 +52,16 @@ class CFSNode(object):
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'''
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if mode not in ['any', 'lookup', 'create']:
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raise RTSLibError("Invalid mode: %s" % mode)
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+
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if self.exists and mode == 'create':
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- raise RTSLibError("This %s already exists in configFS"
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- % self.__class__.__name__)
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+ # ensure that self.path is not stale hba-only dir
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+ if os.path.samefile(os.path.dirname(self.path), self.configfs_dir+'/core') \
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+ and not next(os.walk(self.path))[1]:
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+ os.rmdir(self.path)
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+ else:
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+ raise RTSLibError("This %s already exists in configFS"
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+ % self.__class__.__name__)
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+
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elif not self.exists and mode == 'lookup':
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raise RTSLibNotInCFS("No such %s in configfs: %s"
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% (self.__class__.__name__, self.path))
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--
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1.8.3.1
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