diff options
Diffstat (limited to 'block/blk.h')
| -rw-r--r-- | block/blk.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/block/blk.h b/block/blk.h index 434017701403..8e79296ee97a 100644 --- a/block/blk.h +++ b/block/blk.h @@ -159,6 +159,19 @@ static inline bool blk_discard_mergable(struct request *req) return false; } +static inline unsigned int blk_queue_get_max_sectors(struct request_queue *q, + int op) +{ + if (unlikely(op == REQ_OP_DISCARD || op == REQ_OP_SECURE_ERASE)) + return min(q->limits.max_discard_sectors, + UINT_MAX >> SECTOR_SHIFT); + + if (unlikely(op == REQ_OP_WRITE_ZEROES)) + return q->limits.max_write_zeroes_sectors; + + return q->limits.max_sectors; +} + #ifdef CONFIG_BLK_DEV_INTEGRITY void blk_flush_integrity(void); bool __bio_integrity_endio(struct bio *); |