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| author | Jens Axboe <axboe@suse.de> | 2006-02-02 11:56:56 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@suse.de> | 2006-02-02 11:56:56 +0100 |
| commit | 210824c332e30b543676a537ddd34d380bc9c69d (patch) | |
| tree | d5ed9e014865e2e612eefdd1631c6b2430cf9404 /blktrace.h | |
| parent | 89482da65bbe96da701e2c873e3eeb3016b4e651 (diff) | |
| download | blktrace-210824c332e30b543676a537ddd34d380bc9c69d.tar.gz blktrace-210824c332e30b543676a537ddd34d380bc9c69d.tar.bz2 | |
[PATCH] Make the sequence per-CPU so the kernel side can be lockless
Diffstat (limited to 'blktrace.h')
| -rw-r--r-- | blktrace.h | 8 |
1 files changed, 7 insertions, 1 deletions
@@ -6,6 +6,7 @@ #include <endian.h> #include "blktrace_api.h" +#include "rbtree.h" #define MINORBITS 20 #define MINORMASK ((1U << MINORBITS) - 1) @@ -41,12 +42,17 @@ struct per_cpu_info { char fname[128]; struct io_stats io_stats; + + struct rb_root rb_last; + unsigned long rb_last_entries; + unsigned long last_sequence; + unsigned long smallest_seq_read; }; extern FILE *ofp; #define CHECK_MAGIC(t) (((t)->magic & 0xffffff00) == BLK_IO_TRACE_MAGIC) -#define SUPPORTED_VERSION (0x05) +#define SUPPORTED_VERSION (0x06) #if __BYTE_ORDER == __LITTLE_ENDIAN #define be16_to_cpu(x) __bswap_16(x) |