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Diffstat (limited to 'include/linux/blk_types.h')
-rw-r--r--include/linux/blk_types.h24
1 files changed, 8 insertions, 16 deletions
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 1dcf652ba0aa..5c7e7f859a24 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -174,11 +174,11 @@ struct bio {
void *bi_private;
#ifdef CONFIG_BLK_CGROUP
/*
- * Optional ioc and css associated with this bio. Put on bio
- * release. Read comment on top of bio_associate_current().
+ * Represents the association of the css and request_queue for the bio.
+ * If a bio goes direct to device, it will not have a blkg as it will
+ * not have a request_queue associated with it. The reference is put
+ * on release of the bio.
*/
- struct io_context *bi_ioc;
- struct cgroup_subsys_state *bi_css;
struct blkcg_gq *bi_blkg;
struct bio_issue bi_issue;
#endif
@@ -228,6 +228,7 @@ struct bio {
#define BIO_TRACE_COMPLETION 10 /* bio_endio() should trace the final completion
* of this bio. */
#define BIO_QUEUE_ENTERED 11 /* can use blk_queue_enter_live() */
+#define BIO_TRACKED 12 /* set if bio goes through the rq_qos path */
/* See BVEC_POOL_OFFSET below before adding new flags */
@@ -323,6 +324,8 @@ enum req_flag_bits {
/* command specific flags for REQ_OP_WRITE_ZEROES: */
__REQ_NOUNMAP, /* do not free blocks when zeroing */
+ __REQ_HIPRI,
+
/* for driver use */
__REQ_DRV,
__REQ_SWAP, /* swapping request. */
@@ -343,8 +346,8 @@ enum req_flag_bits {
#define REQ_RAHEAD (1ULL << __REQ_RAHEAD)
#define REQ_BACKGROUND (1ULL << __REQ_BACKGROUND)
#define REQ_NOWAIT (1ULL << __REQ_NOWAIT)
-
#define REQ_NOUNMAP (1ULL << __REQ_NOUNMAP)
+#define REQ_HIPRI (1ULL << __REQ_HIPRI)
#define REQ_DRV (1ULL << __REQ_DRV)
#define REQ_SWAP (1ULL << __REQ_SWAP)
@@ -422,17 +425,6 @@ static inline bool blk_qc_t_valid(blk_qc_t cookie)
return cookie != BLK_QC_T_NONE;
}
-static inline blk_qc_t blk_tag_to_qc_t(unsigned int tag, unsigned int queue_num,
- bool internal)
-{
- blk_qc_t ret = tag | (queue_num << BLK_QC_T_SHIFT);
-
- if (internal)
- ret |= BLK_QC_T_INTERNAL;
-
- return ret;
-}
-
static inline unsigned int blk_qc_t_to_queue_num(blk_qc_t cookie)
{
return (cookie & ~BLK_QC_T_INTERNAL) >> BLK_QC_T_SHIFT;