[PATCH] Rearrange a few struct request members
This saves 8 bytes of data in 64-bit archs.
Signed-off-by: Jens Axboe <axboe@suse.de>
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 371c0ce..aafe827 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -151,11 +151,9 @@
void *elevator_private;
void *completion_data;
- unsigned short ioprio;
-
int rq_status; /* should split this into a few status bits */
- struct gendisk *rq_disk;
int errors;
+ struct gendisk *rq_disk;
unsigned long start_time;
/* Number of scatter-gather DMA addr+len pairs after
@@ -170,8 +168,9 @@
*/
unsigned short nr_hw_segments;
+ unsigned short ioprio;
+
int tag;
- char *buffer;
int ref_count;
request_queue_t *q;
@@ -179,6 +178,7 @@
struct completion *waiting;
void *special;
+ char *buffer;
/*
* when request is used as a packet command carrier
@@ -187,9 +187,8 @@
unsigned char cmd[BLK_MAX_CDB];
unsigned int data_len;
- void *data;
-
unsigned int sense_len;
+ void *data;
void *sense;
unsigned int timeout;