From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Bart Van Assche To: Jens Axboe CC: , Bart Van Assche Subject: [PATCH v3 0/8] blk-mq debugfs patches for kernel v4.12 Date: Tue, 18 Apr 2017 16:29:41 -0700 Message-ID: <20170418232949.5228-1-bart.vanassche@sandisk.com> MIME-Version: 1.0 Content-Type: text/plain Return-Path: Bart.VanAssche@sandisk.com List-ID: Hello Jens, Please consider the eight patches in this series for kernel v4.12. These patches improve blk-mq debugfs support. Thanks, Bart. Changes compared to v2: - Changed the mutex_lock() calls in registration methods into mutex_lock_interruptible() since these functions can be called from the context of a user space process. - Avoid that the blk_mq_register_dev() changes in patch 1/8 cause a deadlock. Changes compared to v1: - Added two patches and replaced patch 1/6 such that debugfs attributes are now unregistered before freeing of a blk-mq queue starts instead of checking the "dead" queue flag. - Changed "rq->cmd_flags ^ op" into "rq->cmd_flags & ~REQ_OP_MASK" as proposed by Omar. - A seq_file pointer is now passed to the new queue_rq callback function instead of a fixed-size char buffer. Bart Van Assche (8): blk-mq: Register /queue/mq after having registered /queue blk-mq: Let blk_mq_debugfs_register() look up the queue name blk-mq: Unregister debugfs attributes earlier blk-mq: Move the "state" debugfs attribute one level down blk-mq: Make blk_flags_show() callers append a newline character blk-mq: Show operation, cmd_flags and rq_flags names blk-mq: Add blk_mq_ops.show_rq() scsi: Implement blk_mq_ops.show_rq() block/blk-mq-debugfs.c | 94 +++++++++++++++++++++++++++++++++++++++++-------- block/blk-mq-sysfs.c | 66 +++++++++++++++++++--------------- block/blk-mq.h | 6 ++-- block/blk-sysfs.c | 9 +++-- drivers/scsi/scsi_lib.c | 26 ++++++++++++++ include/linux/blk-mq.h | 6 ++++ 6 files changed, 156 insertions(+), 51 deletions(-) -- 2.12.2