struct list_head queuelist;
union {
struct call_single_data csd;
- unsigned long fifo_time;
+ u64 fifo_time;
};
struct request_queue *q;
#define QUEUE_FLAG_DISCARD 14 /* supports DISCARD */
#define QUEUE_FLAG_NOXMERGES 15 /* No extended merges */
#define QUEUE_FLAG_ADD_RANDOM 16 /* Contributes to random pool */
-#define QUEUE_FLAG_SECDISCARD 17 /* supports SECDISCARD */
+#define QUEUE_FLAG_SECERASE 17 /* supports secure erase */
#define QUEUE_FLAG_SAME_FORCE 18 /* force complete on same CPU */
#define QUEUE_FLAG_DEAD 19 /* queue tear-down finished */
#define QUEUE_FLAG_INIT_DONE 20 /* queue is initialized */
#define QUEUE_FLAG_WC 23 /* Write back caching */
#define QUEUE_FLAG_FUA 24 /* device supports FUA writes */
#define QUEUE_FLAG_FLUSH_NQ 25 /* flush not queueuable */
+#define QUEUE_FLAG_DAX 26 /* device supports DAX */
#define QUEUE_FLAG_DEFAULT ((1 << QUEUE_FLAG_IO_STAT) | \
(1 << QUEUE_FLAG_STACKABLE) | \
#define blk_queue_stackable(q) \
test_bit(QUEUE_FLAG_STACKABLE, &(q)->queue_flags)
#define blk_queue_discard(q) test_bit(QUEUE_FLAG_DISCARD, &(q)->queue_flags)
-#define blk_queue_secdiscard(q) (blk_queue_discard(q) && \
- test_bit(QUEUE_FLAG_SECDISCARD, &(q)->queue_flags))
+#define blk_queue_secure_erase(q) \
+ (test_bit(QUEUE_FLAG_SECERASE, &(q)->queue_flags))
+#define blk_queue_dax(q) test_bit(QUEUE_FLAG_DAX, &(q)->queue_flags)
#define blk_noretry_request(rq) \
((rq)->cmd_flags & (REQ_FAILFAST_DEV|REQ_FAILFAST_TRANSPORT| \
return true;
}
-static inline bool blk_check_merge_flags(unsigned int flags1, unsigned int op1,
- unsigned int flags2, unsigned int op2)
-{
- if ((op1 == REQ_OP_DISCARD) != (op2 == REQ_OP_DISCARD))
- return false;
-
- if ((flags1 & REQ_SECURE) != (flags2 & REQ_SECURE))
- return false;
-
- if ((op1 == REQ_OP_WRITE_SAME) != (op2 == REQ_OP_WRITE_SAME))
- return false;
-
- return true;
-}
-
static inline bool blk_write_same_mergeable(struct bio *a, struct bio *b)
{
if (bio_data(a) == bio_data(b))
extern void blk_put_request(struct request *);
extern void __blk_put_request(struct request_queue *, struct request *);
extern struct request *blk_get_request(struct request_queue *, int, gfp_t);
-extern struct request *blk_make_request(struct request_queue *, struct bio *,
- gfp_t);
extern void blk_rq_set_block_pc(struct request *);
extern void blk_requeue_request(struct request_queue *, struct request *);
extern void blk_add_request_payload(struct request *rq, struct page *page,
extern void blk_rq_unprep_clone(struct request *rq);
extern int blk_insert_cloned_request(struct request_queue *q,
struct request *rq);
+extern int blk_rq_append_bio(struct request *rq, struct bio *bio);
extern void blk_delay_queue(struct request_queue *, unsigned long);
extern void blk_queue_split(struct request_queue *, struct bio **,
struct bio_set *);
(offset & (q->limits.chunk_sectors - 1));
}
-static inline unsigned int blk_rq_get_max_sectors(struct request *rq)
+static inline unsigned int blk_rq_get_max_sectors(struct request *rq,
+ sector_t offset)
{
struct request_queue *q = rq->q;
if (!q->limits.chunk_sectors || (req_op(rq) == REQ_OP_DISCARD))
return blk_queue_get_max_sectors(q, req_op(rq));
- return min(blk_max_size_offset(q, blk_rq_pos(rq)),
+ return min(blk_max_size_offset(q, offset),
blk_queue_get_max_sectors(q, req_op(rq)));
}
return bqt->tag_index[tag];
}
-#define BLKDEV_DISCARD_SECURE 0x01 /* secure discard */
+
+#define BLKDEV_DISCARD_SECURE (1 << 0) /* issue a secure erase */
+#define BLKDEV_DISCARD_ZERO (1 << 1) /* must reliably zero data */
extern int blkdev_issue_flush(struct block_device *, gfp_t, sector_t *);
extern int blkdev_issue_discard(struct block_device *bdev, sector_t sector,
sector_t nr_sects, gfp_t gfp_mask, unsigned long flags);
extern int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
- sector_t nr_sects, gfp_t gfp_mask, int op_flags,
+ sector_t nr_sects, gfp_t gfp_mask, int flags,
struct bio **biop);
extern int blkdev_issue_write_same(struct block_device *bdev, sector_t sector,
sector_t nr_sects, gfp_t gfp_mask, struct page *page);