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authorChristoph Hellwig <hch@lst.de>2016-10-20 16:12:13 +0300
committerJens Axboe <axboe@fb.com>2016-10-28 17:45:17 +0300
commite806402130c9c494e22c73ae9ead4e79d2a5811c (patch)
treebac59e1eb3f1b5945409bd0780a4824e9b8383f8 /block/blk.h
parent8d2bbd4c8236e9e38e6b36ac9e2c54fdcfe5b335 (diff)
downloadlinux-e806402130c9c494e22c73ae9ead4e79d2a5811c.tar.xz
block: split out request-only flags into a new namespace
A lot of the REQ_* flags are only used on struct requests, and only of use to the block layer and a few drivers that dig into struct request internals. This patch adds a new req_flags_t rq_flags field to struct request for them, and thus dramatically shrinks the number of common requests. It also removes the unfortunate situation where we have to fit the fields from the same enum into 32 bits for struct bio and 64 bits for struct request. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Shaun Tancheff <shaun.tancheff@seagate.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk.h')
-rw-r--r--block/blk.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/block/blk.h b/block/blk.h
index 74444c49078f..aa132dea598c 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -130,7 +130,7 @@ static inline void blk_clear_rq_complete(struct request *rq)
/*
* Internal elevator interface
*/
-#define ELV_ON_HASH(rq) ((rq)->cmd_flags & REQ_HASHED)
+#define ELV_ON_HASH(rq) ((rq)->rq_flags & RQF_HASHED)
void blk_insert_flush(struct request *rq);
@@ -247,7 +247,7 @@ extern int blk_update_nr_requests(struct request_queue *, unsigned int);
static inline int blk_do_io_stat(struct request *rq)
{
return rq->rq_disk &&
- (rq->cmd_flags & REQ_IO_STAT) &&
+ (rq->rq_flags & RQF_IO_STAT) &&
(rq->cmd_type == REQ_TYPE_FS);
}