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Diffstat (limited to 'include/linux/blkdev.h')
-rw-r--r--include/linux/blkdev.h10
1 files changed, 4 insertions, 6 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 159dbcd2eb5..6186d5e2110 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -107,9 +107,9 @@ typedef void (rq_end_io_fn)(struct request *);
struct request_list {
int count[2];
int starved[2];
+ int elvpriv;
mempool_t *rq_pool;
wait_queue_head_t wait[2];
- wait_queue_head_t drain;
};
#define BLK_MAX_CDB 16
@@ -211,6 +211,7 @@ enum rq_flag_bits {
__REQ_STARTED, /* drive already may have started this one */
__REQ_DONTPREP, /* don't call prep for this one */
__REQ_QUEUED, /* uses queueing */
+ __REQ_ELVPRIV, /* elevator private data attached */
/*
* for ATA/ATAPI devices
*/
@@ -244,6 +245,7 @@ enum rq_flag_bits {
#define REQ_STARTED (1 << __REQ_STARTED)
#define REQ_DONTPREP (1 << __REQ_DONTPREP)
#define REQ_QUEUED (1 << __REQ_QUEUED)
+#define REQ_ELVPRIV (1 << __REQ_ELVPRIV)
#define REQ_PC (1 << __REQ_PC)
#define REQ_BLOCK_PC (1 << __REQ_BLOCK_PC)
#define REQ_SENSE (1 << __REQ_SENSE)
@@ -413,8 +415,6 @@ struct request_queue
unsigned int sg_reserved_size;
int node;
- struct list_head drain_list;
-
/*
* reserved for flush operations
*/
@@ -442,7 +442,7 @@ enum {
#define QUEUE_FLAG_DEAD 5 /* queue being torn down */
#define QUEUE_FLAG_REENTER 6 /* Re-entrancy avoidance */
#define QUEUE_FLAG_PLUGGED 7 /* queue is plugged */
-#define QUEUE_FLAG_DRAIN 8 /* draining queue for sched switch */
+#define QUEUE_FLAG_BYPASS 8 /* don't use elevator, just do FIFO */
#define QUEUE_FLAG_FLUSH 9 /* doing barrier flush sequence */
#define blk_queue_plugged(q) test_bit(QUEUE_FLAG_PLUGGED, &(q)->queue_flags)
@@ -668,8 +668,6 @@ extern void blk_dump_rq_flags(struct request *, char *);
extern void generic_unplug_device(request_queue_t *);
extern void __generic_unplug_device(request_queue_t *);
extern long nr_blockdev_pages(void);
-extern void blk_wait_queue_drained(request_queue_t *, int);
-extern void blk_finish_queue_drain(request_queue_t *);
int blk_get_queue(request_queue_t *);
request_queue_t *blk_alloc_queue(int gfp_mask);