From: James Bottomley <jejb@titanic.(none)>
Date: Sun, 28 Aug 2005 15:43:07 +0000 (-0500)
Subject: fix mismerge in ll_rw_blk.c
X-Git-Tag: firefly_0821_release~41676^2~16
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=31151ba2cef171344beac254e65bd7e00138bb0d;p=firefly-linux-kernel-4.4.55.git

fix mismerge in ll_rw_blk.c
---

31151ba2cef171344beac254e65bd7e00138bb0d
diff --cc drivers/block/ll_rw_blk.c
index 3c818544475e,f6fda036b4ae..0c7599563b65
--- a/drivers/block/ll_rw_blk.c
+++ b/drivers/block/ll_rw_blk.c
@@@ -2277,7 -2347,45 +2373,45 @@@ int blkdev_issue_flush(struct block_dev
  
  EXPORT_SYMBOL(blkdev_issue_flush);
  
+ /**
+  * blkdev_scsi_issue_flush_fn - issue flush for SCSI devices
+  * @q:		device queue
+  * @disk:	gendisk
+  * @error_sector:	error offset
+  *
+  * Description:
+  *    Devices understanding the SCSI command set, can use this function as
+  *    a helper for issuing a cache flush. Note: driver is required to store
+  *    the error offset (in case of error flushing) in ->sector of struct
+  *    request.
+  */
+ int blkdev_scsi_issue_flush_fn(request_queue_t *q, struct gendisk *disk,
+ 			       sector_t *error_sector)
+ {
+ 	struct request *rq = blk_get_request(q, WRITE, __GFP_WAIT);
+ 	int ret;
+ 
+ 	rq->flags |= REQ_BLOCK_PC | REQ_SOFTBARRIER;
+ 	rq->sector = 0;
+ 	memset(rq->cmd, 0, sizeof(rq->cmd));
+ 	rq->cmd[0] = 0x35;
+ 	rq->cmd_len = 12;
+ 	rq->data = NULL;
+ 	rq->data_len = 0;
+ 	rq->timeout = 60 * HZ;
+ 
+ 	ret = blk_execute_rq(q, disk, rq, 0);
+ 
+ 	if (ret && error_sector)
+ 		*error_sector = rq->sector;
+ 
+ 	blk_put_request(rq);
+ 	return ret;
+ }
+ 
+ EXPORT_SYMBOL(blkdev_scsi_issue_flush_fn);
+ 
 -void drive_stat_acct(struct request *rq, int nr_sectors, int new_io)
 +static void drive_stat_acct(struct request *rq, int nr_sectors, int new_io)
  {
  	int rw = rq_data_dir(rq);