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[PATCH] Block queue IO tracing support (blktrace) as of 2006-03-23

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Signed-off-by: Jens Axboe <axboe@suse.de>
This commit is contained in:
Jens Axboe
2006-03-23 20:00:26 +01:00
parent 6dac40a7ce
commit 2056a782f8
17 changed files with 916 additions and 3 deletions
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3
include/linux/blkdev.h
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@ -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
*/