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Commit 8f34ee75 authored by Jens Axboe's avatar Jens Axboe Committed by Jens Axboe
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[PATCH] Rearrange a few struct request members 



This saves 8 bytes of data in 64-bit archs.

Signed-off-by: default avatarJens Axboe <axboe@suse.de>
parent ad3cadda

include/linux/blkdev.h

+5 −6
Original line number Original line Diff line number Diff line
@@ -151,11 +151,9 @@ struct request { 
	void *elevator_private;

	void *elevator_private;

	void *completion_data;

	void *completion_data;





	unsigned short ioprio;



	int rq_status;	/* should split this into a few status bits */

	int rq_status;	/* should split this into a few status bits */

	struct gendisk *rq_disk;

	int errors;

	int errors;

	struct gendisk *rq_disk;

	unsigned long start_time;

	unsigned long start_time;





	/* Number of scatter-gather DMA addr+len pairs after

	/* Number of scatter-gather DMA addr+len pairs after
@@ -170,8 +168,9 @@ struct request { 
	 */

	 */

	unsigned short nr_hw_segments;

	unsigned short nr_hw_segments;





	unsigned short ioprio;



	int tag;

	int tag;

	char *buffer;





	int ref_count;

	int ref_count;

	request_queue_t *q;

	request_queue_t *q;
@@ -179,6 +178,7 @@ struct request { 




	struct completion *waiting;

	struct completion *waiting;

	void *special;

	void *special;

	char *buffer;





	/*

	/*

	 * when request is used as a packet command carrier

	 * when request is used as a packet command carrier
@@ -187,9 +187,8 @@ struct request { 
	unsigned char cmd[BLK_MAX_CDB];

	unsigned char cmd[BLK_MAX_CDB];





	unsigned int data_len;

	unsigned int data_len;

	void *data;



	unsigned int sense_len;

	unsigned int sense_len;

	void *data;

	void *sense;

	void *sense;





	unsigned int timeout;

	unsigned int timeout;