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authorChristoph Hellwig <hch@lst.de>2014-10-19 17:13:57 +0200
committerChristoph Hellwig <hch@lst.de>2014-10-28 09:53:43 +0100
commite999dbc254044e8d2a5818d92d205f65bae28f37 (patch)
tree83cc41a1ea52b44ab32afe4b22769b3b4d83ab26
parentlib/scatterlist: fix memory leak with scsi-mq (diff)
downloadlinux-e999dbc254044e8d2a5818d92d205f65bae28f37.tar.xz
linux-e999dbc254044e8d2a5818d92d205f65bae28f37.zip
Revert "block: all blk-mq requests are tagged"
This reverts commit fb3ccb5da71273e7f0d50b50bc879e50cedd60e7. SCSI-2/SPI actually needs the tagged/untagged flag in the request to work properly. Revert this patch and add a follow on to set it in the right place. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Acked-by: Jens Axboe <axboe@kernel.dk> Reported-by: Meelis Roos <mroos@linux.ee> Tested-by: Meelis Roos <mroos@linux.ee> Cc: stable@vger.kernel.org
-rw-r--r--include/linux/blkdev.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 0207a78a8d82..51d0dc2259cf 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1136,8 +1136,7 @@ static inline bool blk_needs_flush_plug(struct task_struct *tsk)
/*
* tag stuff
*/
-#define blk_rq_tagged(rq) \
- ((rq)->mq_ctx || ((rq)->cmd_flags & REQ_QUEUED))
+#define blk_rq_tagged(rq) ((rq)->cmd_flags & REQ_QUEUED)
extern int blk_queue_start_tag(struct request_queue *, struct request *);
extern struct request *blk_queue_find_tag(struct request_queue *, int);
extern void blk_queue_end_tag(struct request_queue *, struct request *);