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authorJens Axboe <jens.axboe@oracle.com>2008-02-08 12:41:03 +0100
committerJens Axboe <jens.axboe@oracle.com>2008-02-08 12:41:03 +0100
commit63a7138671c50a6f2c27bbd1a308dc75967062a3 (patch)
tree6d8b0d9cbc05bce2848299b61528cabc6d04d267 /include/linux/blkdev.h
parenta4ffc0a0b240a29cbe489f6db9dae112a49ef1c1 (diff)
block: fixup rq_init() a bit
Rearrange fields in cache order and initialize some fields that we didn't previously init. Remove init of ->completion_data, it's part of a union with ->hash. Luckily clearing the rb node is the same as setting it to null! Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'include/linux/blkdev.h')
-rw-r--r--include/linux/blkdev.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 90392a9d7a9..e1888cc5b8a 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -137,7 +137,9 @@ enum rq_flag_bits {
#define BLK_MAX_CDB 16
/*
- * try to put the fields that are referenced together in the same cacheline
+ * try to put the fields that are referenced together in the same cacheline.
+ * if you modify this structure, be sure to check block/blk-core.c:rq_init()
+ * as well!
*/
struct request {
struct list_head queuelist;