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| author | Jens Axboe <axboe@fb.com> | 2014-04-15 14:02:24 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-04-15 14:02:24 -0600 |
| commit | f89e0dd9d1a72fdf6b8958bcadfa6abf84f3cae0 (patch) | |
| tree | 6d4ca8c67dc22d1c81053392078588f9ab3804b5 /include/linux/blkdev.h | |
| parent | 21f9fcd81593e201172160853b8647336fb81f4f (diff) | |
| parent | c9eaa447e77efe77b7fa4c953bd62de8297fd6c5 (diff) | |
Merge tag 'v3.15-rc1' into for-3.16/core
We don't like this, but things have diverged with the blk-mq fixes
in 3.15-rc1. So merge it in.
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 5a31307c5ded..86a8df13a5fe 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -118,7 +118,18 @@ struct request { struct bio *bio; struct bio *biotail; - struct hlist_node hash; /* merge hash */ + /* + * The hash is used inside the scheduler, and killed once the + * request reaches the dispatch list. The ipi_list is only used + * to queue the request for softirq completion, which is long + * after the request has been unhashed (and even removed from + * the dispatch list). + */ + union { + struct hlist_node hash; /* merge hash */ + struct list_head ipi_list; + }; + /* * The rb_node is only used inside the io scheduler, requests * are pruned when moved to the dispatch queue. So let the @@ -824,8 +835,8 @@ extern int blk_rq_map_user(struct request_queue *, struct request *, extern int blk_rq_unmap_user(struct bio *); extern int blk_rq_map_kern(struct request_queue *, struct request *, void *, unsigned int, gfp_t); extern int blk_rq_map_user_iov(struct request_queue *, struct request *, - struct rq_map_data *, struct sg_iovec *, int, - unsigned int, gfp_t); + struct rq_map_data *, const struct sg_iovec *, + int, unsigned int, gfp_t); extern int blk_execute_rq(struct request_queue *, struct gendisk *, struct request *, int); extern void blk_execute_rq_nowait(struct request_queue *, struct gendisk *, |