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24 Feb 2021 23:06:15 -0800 From: Chaitanya Kulkarni To: axboe@kernel.dk, viro@zeniv.linux.org.uk, rostedt@goodmis.org, mingo@redhat.com, chaitanya.kulkarni@wdc.com, johannes.thumshirn@wdc.com, damien.lemoal@wdc.com, bvanassche@acm.org, dongli.zhang@oracle.com, aravind.ramesh@wdc.com, joshi.k@samsung.com, niklas.cassel@wdc.com, hch@lst.de, osandov@fb.com, martin.petersen@oracle.com Cc: linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [RFC PATCH 25/39] blktrace: update blk_add_driver_data() Date: Wed, 24 Feb 2021 23:02:17 -0800 Message-Id: <20210225070231.21136-26-chaitanya.kulkarni@wdc.com> X-Mailer: git-send-email 2.22.1.dirty In-Reply-To: <20210225070231.21136-1-chaitanya.kulkarni@wdc.com> References: <20210225070231.21136-1-chaitanya.kulkarni@wdc.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Signed-off-by: Chaitanya Kulkarni --- kernel/trace/blktrace.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c index 0710f2e40404..1f9bc2eb31da 100644 --- a/kernel/trace/blktrace.c +++ b/kernel/trace/blktrace.c @@ -1600,17 +1600,26 @@ static void blk_add_trace_rq_remap(void *ignore, struct request *rq, dev_t dev, void blk_add_driver_data(struct request *rq, void *data, size_t len) { struct blk_trace *bt; + struct blk_trace_ext *bte; rcu_read_lock(); bt = rcu_dereference(rq->q->blk_trace); - if (likely(!bt)) { + bte = rcu_dereference(rq->q->blk_trace_ext); + if (likely(!bt) && likely(!bte)) { rcu_read_unlock(); return; } - __blk_add_trace(bt, blk_rq_trace_sector(rq), blk_rq_bytes(rq), 0, 0, - BLK_TA_DRV_DATA, 0, len, data, + if (bt) { + __blk_add_trace(bt, blk_rq_trace_sector(rq), blk_rq_bytes(rq), 0, + 0, BLK_TA_DRV_DATA, 0, len, data, blk_trace_request_get_cgid(rq)); + } else if (bte) { + __blk_add_trace_ext(bte, blk_rq_trace_sector(rq), + blk_rq_bytes(rq), 0, 0, BLK_TA_DRV_DATA_EXT, 0, + len, data, blk_trace_request_get_cgid(rq), + req_get_ioprio(rq)); + } rcu_read_unlock(); } EXPORT_SYMBOL_GPL(blk_add_driver_data);