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authorJens Axboe <axboe@suse.de>2006-03-23 22:00:26 +0300
committerJens Axboe <axboe@suse.de>2006-03-23 22:00:26 +0300
commit2056a782f8e7e65fd4bfd027506b4ce1c5e9ccd4 (patch)
treed4fe59a7ca0c110690937085548936a4535c39db /include/linux/blkdev.h
parent6dac40a7ce2483a47b54af07afebeb84131c7228 (diff)
downloadlinux-2056a782f8e7e65fd4bfd027506b4ce1c5e9ccd4.tar.xz
[PATCH] Block queue IO tracing support (blktrace) as of 2006-03-23
Signed-off-by: Jens Axboe <axboe@suse.de>
Diffstat (limited to 'include/linux/blkdev.h')
-rw-r--r--include/linux/blkdev.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 56bb6a4e15f3..c179966f1a2f 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -22,6 +22,7 @@ typedef struct request_queue request_queue_t;
struct elevator_queue;
typedef struct elevator_queue elevator_t;
struct request_pm_state;
+struct blk_trace;
#define BLKDEV_MIN_RQ 4
#define BLKDEV_MAX_RQ 128 /* Default maximum */
@@ -416,6 +417,8 @@ struct request_queue
unsigned int sg_reserved_size;
int node;
+ struct blk_trace *blk_trace;
+
/*
* reserved for flush operations
*/