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authorJens Axboe <axboe@suse.de>2006-06-13 09:02:34 +0200
committerJens Axboe <axboe@nelson.home.kernel.dk>2006-06-23 17:10:39 +0200
commit8f34ee75decb80007ba77bba5a7384eadff4866d (patch)
tree63d6d4a613d0c7d2269e2dec01975d58b1e97a31
parentad3caddaa1708e506f20b8e25a4a8ae586fc7d5b (diff)
downloadlinux-8f34ee75decb80007ba77bba5a7384eadff4866d.tar.bz2
[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>
-rw-r--r--include/linux/blkdev.h11
1 files changed, 5 insertions, 6 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 371c0ce5f630..aafe82788b4e 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -151,11 +151,9 @@ struct request {
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 @@ struct request {
*/
unsigned short nr_hw_segments;
+ unsigned short ioprio;
+
int tag;
- char *buffer;
int ref_count;
request_queue_t *q;
@@ -179,6 +178,7 @@ struct request {
struct completion *waiting;
void *special;
+ char *buffer;
/*
* when request is used as a packet command carrier
@@ -187,9 +187,8 @@ struct request {
unsigned char cmd[BLK_MAX_CDB];
unsigned int data_len;
- void *data;
-
unsigned int sense_len;
+ void *data;
void *sense;
unsigned int timeout;