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authorNicholas Bellinger <nab@linux-iscsi.org>2012-03-13 21:29:06 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-03-19 09:02:36 -0700
commitb527fd1fe4c9a63648f106098bc0f95bfb63dd5f (patch)
tree0f431273c78689bcd1cb70714d78f1bf55495347 /Documentation
parent980b16ee8122615e15197b0a747d924c3b35b6bd (diff)
target: Fix compatible reservation handling (CRH=1) with legacy RESERVE/RELEASE
commit 087a03b3ea1c8d6e2d5743a8d1c6d571058caa04 upstream. This patch addresses a bug with target_check_scsi2_reservation_conflict() return checking in target_scsi2_reservation_[reserve,release]() that was preventing CRH=1 operation from silently succeeding in the two special cases defined by SPC-3, and not failing with reservation conflict status when dealing with legacy RESERVE/RELEASE + active SPC-3 PR logic. Also explictly set cmd->scsi_status = SAM_STAT_RESERVATION_CONFLICT during the early non reservation holder failure from pr_ops->t10_seq_non_holder() check in transport_generic_cmd_sequencer() for fabrics that already expect it to be set. This bug was originally introduced in mainline commit: commit eacac00ce5bfde8086cd0615fb53c986f7f970fe Author: Christoph Hellwig <hch@infradead.org> Date: Thu Nov 3 17:50:40 2011 -0400 target: split core_scsi2_emulate_crh Reported-by: Martin Svec <martin.svec@zoner.cz> Cc: Martin Svec <martin.svec@zoner.cz> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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