Queue a write same operation
int blkdev_issue_write_same(struct block_device * bdev, sector_t sector, sector_t nr_sects, gfp_t gfp_mask, struct page * page);
bdev
target blockdev
sector
start sector
nr_sects
number of sectors to write
gfp_mask
memory allocation flags (for bio_alloc)
page
page containing data to write
Issue a write same request for the sectors in question.