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This patch fixes a bug during QUEUE_FULL where transport_complete_qf() calls transport_complete_task_attr() after it's already been invoked by target_complete_ok_work() or transport_generic_request_failure() during initial completion, preceeding QUEUE_FULL. This will result in se_device->simple_cmds, se_device->dev_cur_ordered_id and/or se_device->dev_ordered_sync being updated multiple times for a single se_cmd. To address this bug, clear SCF_TASK_ATTR_SET after the first call to transport_complete_task_attr(), and avoid updating SCSI task attribute related counters for any subsequent calls. Also, when a se_cmd is deferred due to ordered tags and executed via target_restart_delayed_cmds(), set CMD_T_SENT before execution matching what target_execute_cmd() does. Cc: Michael Cyr <mikecyr@linux.vnet.ibm.com> Cc: Bryant G. Ly <bryantly@linux.vnet.ibm.com> Cc: Mike Christie <mchristi@redhat.com> Cc: Hannes Reinecke <hare@suse.com> Cc: stable@vger.kernel.org # 4.1+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> |
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| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.