diff options
Diffstat (limited to 'block/blk-lib.c')
| -rw-r--r-- | block/blk-lib.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/block/blk-lib.c b/block/blk-lib.c index 78626c2fde33..45b35b15496f 100644 --- a/block/blk-lib.c +++ b/block/blk-lib.c @@ -36,12 +36,17 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector, return -ENXIO; if (flags & BLKDEV_DISCARD_SECURE) { + if (flags & BLKDEV_DISCARD_ZERO) + return -EOPNOTSUPP; if (!blk_queue_secure_erase(q)) return -EOPNOTSUPP; op = REQ_OP_SECURE_ERASE; } else { if (!blk_queue_discard(q)) return -EOPNOTSUPP; + if ((flags & BLKDEV_DISCARD_ZERO) && + !q->limits.discard_zeroes_data) + return -EOPNOTSUPP; op = REQ_OP_DISCARD; } @@ -116,7 +121,7 @@ int blkdev_issue_discard(struct block_device *bdev, sector_t sector, &bio); if (!ret && bio) { ret = submit_bio_wait(bio); - if (ret == -EOPNOTSUPP) + if (ret == -EOPNOTSUPP && !(flags & BLKDEV_DISCARD_ZERO)) ret = 0; } blk_finish_plug(&plug); @@ -241,11 +246,11 @@ static int __blkdev_issue_zeroout(struct block_device *bdev, sector_t sector, int blkdev_issue_zeroout(struct block_device *bdev, sector_t sector, sector_t nr_sects, gfp_t gfp_mask, bool discard) { - struct request_queue *q = bdev_get_queue(bdev); - - if (discard && blk_queue_discard(q) && q->limits.discard_zeroes_data && - blkdev_issue_discard(bdev, sector, nr_sects, gfp_mask, 0) == 0) - return 0; + if (discard) { + if (!blkdev_issue_discard(bdev, sector, nr_sects, gfp_mask, + BLKDEV_DISCARD_ZERO)) + return 0; + } if (bdev_write_same(bdev) && blkdev_issue_write_same(bdev, sector, nr_sects, gfp_mask, |