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Diffstat (limited to 'include/linux/blkdev.h')
-rw-r--r--include/linux/blkdev.h28
1 files changed, 22 insertions, 6 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 301cf1cf4f2f..b9637d63e6f0 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -288,6 +288,7 @@ struct queue_limits {
unsigned int max_dev_sectors;
unsigned int chunk_sectors;
unsigned int max_sectors;
+ unsigned int max_user_sectors;
unsigned int max_segment_size;
unsigned int physical_block_size;
unsigned int logical_block_size;
@@ -484,6 +485,7 @@ struct request_queue {
DECLARE_BITMAP (blkcg_pols, BLKCG_MAX_POLS);
struct blkcg_gq *root_blkg;
struct list_head blkg_list;
+ struct mutex blkcg_mutex;
#endif
struct queue_limits limits;
@@ -1095,11 +1097,12 @@ static inline bool bdev_is_partition(struct block_device *bdev)
enum blk_default_limits {
BLK_MAX_SEGMENTS = 128,
BLK_SAFE_MAX_SECTORS = 255,
- BLK_DEF_MAX_SECTORS = 2560,
BLK_MAX_SEGMENT_SIZE = 65536,
BLK_SEG_BOUNDARY_MASK = 0xFFFFFFFFUL,
};
+#define BLK_DEF_MAX_SECTORS 2560u
+
static inline unsigned long queue_segment_boundary(const struct request_queue *q)
{
return q->limits.seg_boundary_mask;
@@ -1283,12 +1286,12 @@ static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev)
static inline bool bdev_is_zoned(struct block_device *bdev)
{
- struct request_queue *q = bdev_get_queue(bdev);
-
- if (q)
- return blk_queue_is_zoned(q);
+ return blk_queue_is_zoned(bdev_get_queue(bdev));
+}
- return false;
+static inline unsigned int bdev_zone_no(struct block_device *bdev, sector_t sec)
+{
+ return disk_zone_no(bdev->bd_disk, sec);
}
static inline bool bdev_op_is_zoned_write(struct block_device *bdev,
@@ -1309,6 +1312,18 @@ static inline sector_t bdev_zone_sectors(struct block_device *bdev)
return q->limits.chunk_sectors;
}
+static inline sector_t bdev_offset_from_zone_start(struct block_device *bdev,
+ sector_t sector)
+{
+ return sector & (bdev_zone_sectors(bdev) - 1);
+}
+
+static inline bool bdev_is_zone_start(struct block_device *bdev,
+ sector_t sector)
+{
+ return bdev_offset_from_zone_start(bdev, sector) == 0;
+}
+
static inline int queue_dma_alignment(const struct request_queue *q)
{
return q ? q->limits.dma_alignment : 511;
@@ -1395,6 +1410,7 @@ struct block_device_operations {
void (*swap_slot_free_notify) (struct block_device *, unsigned long);
int (*report_zones)(struct gendisk *, sector_t sector,
unsigned int nr_zones, report_zones_cb cb, void *data);
+ char *(*devnode)(struct gendisk *disk, umode_t *mode);
/* returns the length of the identifier or a negative errno: */
int (*get_unique_id)(struct gendisk *disk, u8 id[16],
enum blk_unique_id id_type);