#define list_entry_rq(ptr) list_entry((ptr), struct request, queuelist)
-#define rq_data_dir(rq) (((rq)->cmd_flags & 1) != 0)
+#define rq_data_dir(rq) ((int)((rq)->cmd_flags & 1))
/*
* Driver can handle struct request, if it either has an old style
((bprv->bv_offset + bprv->bv_len) & queue_virt_boundary(q));
}
+static inline bool bio_will_gap(struct request_queue *q, struct bio *prev,
+ struct bio *next)
+{
+ if (!bio_has_data(prev))
+ return false;
+
+ return bvec_gap_to_prev(q, &prev->bi_io_vec[prev->bi_vcnt - 1],
+ next->bi_io_vec[0].bv_offset);
+}
+
+static inline bool req_gap_back_merge(struct request *req, struct bio *bio)
+{
+ return bio_will_gap(req->q, req->biotail, bio);
+}
+
+static inline bool req_gap_front_merge(struct request *req, struct bio *bio)
+{
+ return bio_will_gap(req->q, bio, req->bio);
+}
+
struct work_struct;
int kblockd_schedule_work(struct work_struct *work);
int kblockd_schedule_delayed_work(struct delayed_work *dwork, unsigned long delay);
return q->limits.max_integrity_segments;
}
+static inline bool integrity_req_gap_back_merge(struct request *req,
+ struct bio *next)
+{
+ struct bio_integrity_payload *bip = bio_integrity(req->bio);
+ struct bio_integrity_payload *bip_next = bio_integrity(next);
+
+ return bvec_gap_to_prev(req->q, &bip->bip_vec[bip->bip_vcnt - 1],
+ bip_next->bip_vec[0].bv_offset);
+}
+
+static inline bool integrity_req_gap_front_merge(struct request *req,
+ struct bio *bio)
+{
+ struct bio_integrity_payload *bip = bio_integrity(bio);
+ struct bio_integrity_payload *bip_next = bio_integrity(req->bio);
+
+ return bvec_gap_to_prev(req->q, &bip->bip_vec[bip->bip_vcnt - 1],
+ bip_next->bip_vec[0].bv_offset);
+}
+
#else /* CONFIG_BLK_DEV_INTEGRITY */
struct bio;
{
return 0;
}
+static inline bool integrity_req_gap_back_merge(struct request *req,
+ struct bio *next)
+{
+ return false;
+}
+static inline bool integrity_req_gap_front_merge(struct request *req,
+ struct bio *bio)
+{
+ return false;
+}
#endif /* CONFIG_BLK_DEV_INTEGRITY */
int (*rw_page)(struct block_device *, sector_t, struct page *, int rw);
int (*ioctl) (struct block_device *, fmode_t, unsigned, unsigned long);
int (*compat_ioctl) (struct block_device *, fmode_t, unsigned, unsigned long);
- long (*direct_access)(struct block_device *, sector_t,
- void **, unsigned long *pfn, long size);
+ long (*direct_access)(struct block_device *, sector_t, void __pmem **,
+ unsigned long *pfn);
unsigned int (*check_events) (struct gendisk *disk,
unsigned int clearing);
/* ->media_changed() is DEPRECATED, use ->check_events() instead */
extern int bdev_read_page(struct block_device *, sector_t, struct page *);
extern int bdev_write_page(struct block_device *, sector_t, struct page *,
struct writeback_control *);
-extern long bdev_direct_access(struct block_device *, sector_t, void **addr,
- unsigned long *pfn, long size);
+extern long bdev_direct_access(struct block_device *, sector_t,
+ void __pmem **addr, unsigned long *pfn, long size);
#else /* CONFIG_BLOCK */
struct block_device;