[PATCH 12/16] blktrace: add block trace commands for zone operations
From: Johannes Thumshirn <hidden>
Date: 2025-09-09 11:07:13
Also in:
linux-trace-kernel, lkml
Subsystem:
block layer, the rest, tracing · Maintainers:
Jens Axboe, Linus Torvalds, Steven Rostedt, Masami Hiramatsu
Add block trace commands for zone operations. These are added as a separate set of 'block trace commands' shifted by 32bit so that they do not interfere with the old 16bit wide trace command field in 'struct blk_io_trace' action. Signed-off-by: Johannes Thumshirn <redacted> --- include/uapi/linux/blktrace_api.h | 11 +++++++++++ kernel/trace/blktrace.c | 18 ++++++++++++++++++ 2 files changed, 29 insertions(+)
diff --git a/include/uapi/linux/blktrace_api.h b/include/uapi/linux/blktrace_api.h
index 01779f84d09f..d5047467c8ee 100644
--- a/include/uapi/linux/blktrace_api.h
+++ b/include/uapi/linux/blktrace_api.h@@ -29,8 +29,19 @@ enum blktrace_cat { BLK_TC_END = 1 << 15, /* we've run out of bits! */ }; +enum blktrace_cat2 { + BLK_TC_ZONE_APPEND = 1 << 1ull, /* zone append */ + BLK_TC_ZONE_RESET = 1 << 2ull, /* zone reset */ + BLK_TC_ZONE_RESET_ALL = 1 << 3ull, /* zone reset all */ + BLK_TC_ZONE_FINISH = 1 << 4ull, /* zone finish */ + BLK_TC_ZONE_OPEN = 1 << 5ull, /* zone open */ + BLK_TC_ZONE_CLOSE = 1 << 6ull, /* zone close */ +}; + #define BLK_TC_SHIFT (16) #define BLK_TC_ACT(act) ((act) << BLK_TC_SHIFT) +#define BLK_TC_SHIFT2 (32) +#define BLK_TC_ACT2(act) ((u64)(act) << BLK_TC_SHIFT2) /* * Basic trace actions
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 82ad626d6202..62f6cfcee4f6 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c@@ -333,6 +333,24 @@ static void __blk_add_trace(struct blk_trace *bt, sector_t sector, int bytes, case REQ_OP_FLUSH: what |= BLK_TC_ACT(BLK_TC_FLUSH); break; + case REQ_OP_ZONE_APPEND: + what |= BLK_TC_ACT2(BLK_TC_ZONE_APPEND); + break; + case REQ_OP_ZONE_RESET: + what |= BLK_TC_ACT2(BLK_TC_ZONE_RESET); + break; + case REQ_OP_ZONE_RESET_ALL: + what |= BLK_TC_ACT2(BLK_TC_ZONE_RESET_ALL); + break; + case REQ_OP_ZONE_FINISH: + what |= BLK_TC_ACT2(BLK_TC_ZONE_FINISH); + break; + case REQ_OP_ZONE_OPEN: + what |= BLK_TC_ACT2(BLK_TC_ZONE_OPEN); + break; + case REQ_OP_ZONE_CLOSE: + what |= BLK_TC_ACT2(BLK_TC_ZONE_CLOSE); + break; default: break; }
--
2.51.0