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24 Feb 2021 23:06:30 -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 27/39] blktrace: add a new formatting routine Date: Wed, 24 Feb 2021 23:02:19 -0800 Message-Id: <20210225070231.21136-28-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 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Signed-off-by: Chaitanya Kulkarni --- kernel/trace/blktrace.c | 57 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c index 84bee8677162..2241c7304749 100644 --- a/kernel/trace/blktrace.c +++ b/kernel/trace/blktrace.c @@ -1722,6 +1722,62 @@ static void fill_rwbs(char *rwbs, const struct blk_io_trace *t) rwbs[i] = '\0'; } +static void fill_rwbs_ext(char *rwbs, const struct blk_io_trace_ext *t) +{ + int i = 0; + int tc = t->action >> BLK_TC_SHIFT_EXT; + + if ((t->action & ~__BLK_TN_CGROUP) == BLK_TN_MESSAGE_EXT) { + rwbs[i++] = 'N'; + goto out; + } + + if (tc & BLK_TC_FLUSH) + rwbs[i++] = 'F'; + + if (tc & BLK_TC_DISCARD) + rwbs[i++] = 'D'; + else if ((tc & BLK_TC_WRITE_ZEROES)) { + rwbs[i++] = 'W'; + rwbs[i++] = 'Z'; + } else if ((tc & BLK_TC_ZONE_RESET)) { + rwbs[i++] = 'Z'; + rwbs[i++] = 'R'; + } else if ((tc & BLK_TC_ZONE_RESET_ALL)) { + rwbs[i++] = 'Z'; + rwbs[i++] = 'R'; + rwbs[i++] = 'A'; + } else if ((tc & BLK_TC_ZONE_APPEND)) { + rwbs[i++] = 'Z'; + rwbs[i++] = 'A'; + } else if ((tc & BLK_TC_ZONE_OPEN)) { + rwbs[i++] = 'Z'; + rwbs[i++] = 'O'; + } else if ((tc & BLK_TC_ZONE_CLOSE)) { + rwbs[i++] = 'Z'; + rwbs[i++] = 'C'; + } else if ((tc & BLK_TC_ZONE_FINISH)) { + rwbs[i++] = 'Z'; + rwbs[i++] = 'F'; + } else if (tc & BLK_TC_WRITE) + rwbs[i++] = 'W'; + else if (t->bytes) + rwbs[i++] = 'R'; + else + rwbs[i++] = 'N'; + + if (tc & BLK_TC_FUA) + rwbs[i++] = 'F'; + if (tc & BLK_TC_AHEAD) + rwbs[i++] = 'A'; + if (tc & BLK_TC_SYNC) + rwbs[i++] = 'S'; + if (tc & BLK_TC_META) + rwbs[i++] = 'M'; +out: + rwbs[i] = '\0'; +} + static inline const struct blk_io_trace *te_blk_io_trace(const struct trace_entry *ent) { @@ -2514,5 +2570,6 @@ void blk_fill_rwbs(char *rwbs, unsigned int op) } EXPORT_SYMBOL_GPL(blk_fill_rwbs); + #endif /* CONFIG_EVENT_TRACING */ -- 2.22.1