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authorNicholas Bellinger <nab@linux-iscsi.org>2016-10-23 14:28:15 -0700
committerNicholas Bellinger <nab@linux-iscsi.org>2017-02-08 07:46:31 -0800
commit391e2a6de9781e4906dd7e0b1cc097050bf43e11 (patch)
tree42ebf04325bc226435f330a75677dbe141f26a0b /net/batman-adv/main.h
parentd5adbfcd5f7bcc6fa58a41c5c5ada0e5c826ce2c (diff)
target: Don't BUG_ON during NodeACL dynamic -> explicit conversion
After the v4.2+ RCU conversion to se_node_acl->lun_entry_hlist, a BUG_ON() was added in core_enable_device_list_for_node() to detect when the located orig->se_lun_acl contains an existing se_lun_acl pointer reference. However, this scenario can happen when a dynamically generated NodeACL is being converted to an explicit NodeACL, when the explicit NodeACL contains a different LUN mapping than the default provided by the WWN endpoint. So instead of triggering BUG_ON(), go ahead and fail instead following the original pre RCU conversion logic. Reported-by: Benjamin ESTRABAUD <ben.estrabaud@mpstor.com> Cc: Benjamin ESTRABAUD <ben.estrabaud@mpstor.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: stable@vger.kernel.org # 4.2+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'net/batman-adv/main.h')
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