BLKDEV_ISSUE_DISCARD(9) Block Devices BLKDEV_ISSUE_DISCARD(9)

NAME blkdev_issue_discard - queue a discard

SYNOPSIS int blkdev_issue_discard(struct block_device * bdev, sector_t sector, sector_t nr_sects, gfp_t gfp_mask, int flags);

ARGUMENTS bdev blockdev to issue discard for

sector start sector

nr_sects number of sectors to discard

gfp_mask memory allocation flags (for bio_alloc)

flags BLKDEV_IFL_* flags to control behaviour

DESCRIPTION Issue a discard request for the sectors in question.

COPYRIGHT Kernel Hackers Manual 2.6. April 2016 BLKDEV_ISSUE_DISCARD(9)