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Wed, 22 Oct 2025 10:14:27 -0700 (PDT) From: Jens Axboe To: Johannes Thumshirn Cc: chaitanyak@nvidia.com, dlemoal@kernel.org, hare@suse.de, hch@lst.de, john.g.garry@oracle.com, linux-block@vger.kernel.org, linux-btrace@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, martin.petersen@oracle.com, mathieu.desnoyers@efficios.com, mhiramat@kernel.org, naohiro.aota@wdc.com, rostedt@goodmis.org, shinichiro.kawasaki@wdc.com In-Reply-To: <20251022114115.213865-1-johannes.thumshirn@wdc.com> References: <20251022114115.213865-1-johannes.thumshirn@wdc.com> Subject: Re: [PATCH v5 00/16] block: add blktrace support for zoned block devies Message-Id: <176115326663.119946.495631617143867642.b4-ty@kernel.dk> Date: Wed, 22 Oct 2025 11:14:26 -0600 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Mailer: b4 0.14.3 On Wed, 22 Oct 2025 13:40:59 +0200, Johannes Thumshirn wrote: > This patch series extends the kernel blktrace infrastructure to support > tracing zoned block device commands. Zoned block devices (e.g., ZAC/ZBC and > ZNS) introduce command types such as zone open, close, reset, finish, and zone > append. These are currently not visible in blktrace, making it difficult to > debug and analyze I/O workloads on zoned devices. > > The patches in this series utilize the new trace points for these zone > management operations, and propagate the necessary context to the blktrace > logging path. These additions are designed to be backward-compatible, and are > only active when zoned devices are in use. > > [...] Applied, thanks! [01/16] blktrace: only calculate trace length once commit: a65988a0ad047dbdb8a1eb6f07540b980858b522 [02/16] blktrace: factor out recording a blktrace event commit: 472eca538358fc8a56884a8adb0cc6047bf05cf3 [03/16] blktrace: split out relaying a blktrace event commit: 04678e72e95f4165d58442b3ed108e06605984df [04/16] blktrace: untangle if/else sequence in __blk_add_trace commit: 70e3c62b891281b94b9d449a381e033ce592acc8 [05/16] blktrace: change the internal action to 64bit commit: 370cd70a402f972f6d7a7e54ba5a82d1a72c762f [06/16] blktrace: split do_blk_trace_setup into two functions commit: 42da88a724d8a3b92ade35ae2ef4d5e5a491df2d [07/16] blktrace: add definitions for blk_user_trace_setup2 commit: 0d8627cc936de8ea04f3cc1e6921c63fb72cc199 [08/16] blktrace: pass blk_user_trace2 to setup functions commit: 113cbd62824afdf62d2f3f092809cf37cc7f1dd8 [09/16] blktrace: add definitions for struct blk_io_trace2 commit: c44347d606260f36a81f6d8415a5af33cb3015fa [10/16] blktrace: differentiate between blk_io_trace versions commit: 915bb53860c3a6cc3dd2c9a5e0d1988ada0e377d [11/16] blktrace: move trace_note to blk_io_trace2 commit: 67bfa74d81bae9271f6ec72d2058d081732949cb [12/16] blktrace: move ftrace blk_io_tracer to blk_io_trace2 commit: 4d8bc7bd4f73c6b34ba29d3e8277864c6e0a44a7 [13/16] blktrace: add block trace commands for zone operations commit: f9ee38bbf70fb20584625849a253c8652176fa66 [14/16] blktrace: expose ZONE APPEND completions to blktrace commit: 1c164fcc1b08e75f1cad1532718f09cddc0ddebe [15/16] blktrace: trace zone write plugging operations commit: 3f6722816a73e2017599d965683dbe71833afd7a [16/16] blktrace: handle BLKTRACESETUP2 ioctl commit: 4ae8efb4f907383a16abf3c59b353763e31ae106 Best regards, -- Jens Axboe