| Message ID | 20220406060516.409838-27-hch@lst.de (mailing list archive) |
|---|---|
| State | Deferred, archived |
| Headers | show |
| Series | [01/27] target: remove an incorrect unmap zeroes data deduction | expand |
Christoph, > Secure erase is a very different operation from discard in that it is > a data integrity operation vs hint. Fully split the limits and helper > infrastructure to make the separation more clear. Great! Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
On 4/6/22 2:05 PM, Christoph Hellwig wrote: > Secure erase is a very different operation from discard in that it is > a data integrity operation vs hint. Fully split the limits and helper > infrastructure to make the separation more clear. > > Signed-off-by: Christoph Hellwig <hch@lst.de> For the bcache part, Acked-by: Coly Li <colyli@suse.de> Thanks. Coly Li > --- > block/blk-core.c | 2 +- > block/blk-lib.c | 64 ++++++++++++++++++++--------- > block/blk-mq-debugfs.c | 1 - > block/blk-settings.c | 16 +++++++- > block/fops.c | 2 +- > block/ioctl.c | 43 +++++++++++++++---- > drivers/block/drbd/drbd_receiver.c | 5 ++- > drivers/block/rnbd/rnbd-clt.c | 4 +- > drivers/block/rnbd/rnbd-srv-dev.h | 2 +- > drivers/block/xen-blkback/blkback.c | 15 +++---- > drivers/block/xen-blkback/xenbus.c | 5 +-- > drivers/block/xen-blkfront.c | 5 ++- > drivers/md/bcache/alloc.c | 2 +- > drivers/md/dm-table.c | 8 ++-- > drivers/md/dm-thin.c | 4 +- > drivers/md/md.c | 2 +- > drivers/md/raid5-cache.c | 6 +-- > drivers/mmc/core/queue.c | 2 +- > drivers/nvme/target/io-cmd-bdev.c | 2 +- > drivers/target/target_core_file.c | 2 +- > drivers/target/target_core_iblock.c | 2 +- > fs/btrfs/extent-tree.c | 4 +- > fs/ext4/mballoc.c | 2 +- > fs/f2fs/file.c | 16 ++++---- > fs/f2fs/segment.c | 2 +- > fs/jbd2/journal.c | 2 +- > fs/nilfs2/sufile.c | 4 +- > fs/nilfs2/the_nilfs.c | 4 +- > fs/ntfs3/super.c | 2 +- > fs/xfs/xfs_discard.c | 2 +- > fs/xfs/xfs_log_cil.c | 2 +- > include/linux/blkdev.h | 27 +++++++----- > mm/swapfile.c | 6 +-- > 33 files changed, 168 insertions(+), 99 deletions(-) [snipped] > diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c > index 097577ae3c471..ce13c272c3872 100644 > --- a/drivers/md/bcache/alloc.c > +++ b/drivers/md/bcache/alloc.c > @@ -336,7 +336,7 @@ static int bch_allocator_thread(void *arg) > mutex_unlock(&ca->set->bucket_lock); > blkdev_issue_discard(ca->bdev, > bucket_to_sector(ca->set, bucket), > - ca->sb.bucket_size, GFP_KERNEL, 0); > + ca->sb.bucket_size, GFP_KERNEL); > mutex_lock(&ca->set->bucket_lock); > } > [snipped]
On Wed, Apr 6, 2022 at 11:05 PM Christoph Hellwig <hch@lst.de> wrote: > > Secure erase is a very different operation from discard in that it is > a data integrity operation vs hint. Fully split the limits and helper > infrastructure to make the separation more clear. > > Signed-off-by: Christoph Hellwig <hch@lst.de> > --- > block/blk-core.c | 2 +- > block/blk-lib.c | 64 ++++++++++++++++++++--------- > block/blk-mq-debugfs.c | 1 - > block/blk-settings.c | 16 +++++++- > block/fops.c | 2 +- > block/ioctl.c | 43 +++++++++++++++---- > drivers/block/drbd/drbd_receiver.c | 5 ++- > drivers/block/rnbd/rnbd-clt.c | 4 +- > drivers/block/rnbd/rnbd-srv-dev.h | 2 +- > drivers/block/xen-blkback/blkback.c | 15 +++---- > drivers/block/xen-blkback/xenbus.c | 5 +-- > drivers/block/xen-blkfront.c | 5 ++- > drivers/md/bcache/alloc.c | 2 +- > drivers/md/dm-table.c | 8 ++-- > drivers/md/dm-thin.c | 4 +- > drivers/md/md.c | 2 +- > drivers/md/raid5-cache.c | 6 +-- > drivers/mmc/core/queue.c | 2 +- > drivers/nvme/target/io-cmd-bdev.c | 2 +- > drivers/target/target_core_file.c | 2 +- > drivers/target/target_core_iblock.c | 2 +- > fs/btrfs/extent-tree.c | 4 +- > fs/ext4/mballoc.c | 2 +- > fs/f2fs/file.c | 16 ++++---- > fs/f2fs/segment.c | 2 +- > fs/jbd2/journal.c | 2 +- > fs/nilfs2/sufile.c | 4 +- > fs/nilfs2/the_nilfs.c | 4 +- > fs/ntfs3/super.c | 2 +- > fs/xfs/xfs_discard.c | 2 +- > fs/xfs/xfs_log_cil.c | 2 +- > include/linux/blkdev.h | 27 +++++++----- > mm/swapfile.c | 6 +-- > 33 files changed, 168 insertions(+), 99 deletions(-) > > diff --git a/block/blk-core.c b/block/blk-core.c > index b5c3a8049134c..ee18b6a699bdf 100644 > --- a/block/blk-core.c > +++ b/block/blk-core.c > @@ -824,7 +824,7 @@ void submit_bio_noacct(struct bio *bio) > goto not_supported; > break; > case REQ_OP_SECURE_ERASE: > - if (!blk_queue_secure_erase(q)) > + if (!bdev_max_secure_erase_sectors(bdev)) > goto not_supported; > break; > case REQ_OP_ZONE_APPEND: > diff --git a/block/blk-lib.c b/block/blk-lib.c > index 43aa4d7fe859f..09b7e1200c0f4 100644 > --- a/block/blk-lib.c > +++ b/block/blk-lib.c > @@ -36,26 +36,15 @@ static sector_t bio_discard_limit(struct block_device *bdev, sector_t sector) > } > > int __blkdev_issue_discard(struct block_device *bdev, sector_t sector, > - sector_t nr_sects, gfp_t gfp_mask, int flags, > - struct bio **biop) > + sector_t nr_sects, gfp_t gfp_mask, struct bio **biop) > { > - struct request_queue *q = bdev_get_queue(bdev); > struct bio *bio = *biop; > - unsigned int op; > sector_t bs_mask; > > if (bdev_read_only(bdev)) > return -EPERM; > - > - if (flags & BLKDEV_DISCARD_SECURE) { > - if (!blk_queue_secure_erase(q)) > - return -EOPNOTSUPP; > - op = REQ_OP_SECURE_ERASE; > - } else { > - if (!bdev_max_discard_sectors(bdev)) > - return -EOPNOTSUPP; > - op = REQ_OP_DISCARD; > - } > + if (!bdev_max_discard_sectors(bdev)) > + return -EOPNOTSUPP; > > /* In case the discard granularity isn't set by buggy device driver */ > if (WARN_ON_ONCE(!bdev_discard_granularity(bdev))) { > @@ -77,7 +66,7 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector, > sector_t req_sects = > min(nr_sects, bio_discard_limit(bdev, sector)); > > - bio = blk_next_bio(bio, bdev, 0, op, gfp_mask); > + bio = blk_next_bio(bio, bdev, 0, REQ_OP_DISCARD, gfp_mask); > bio->bi_iter.bi_sector = sector; > bio->bi_iter.bi_size = req_sects << 9; > sector += req_sects; > @@ -103,21 +92,19 @@ EXPORT_SYMBOL(__blkdev_issue_discard); > * @sector: start sector > * @nr_sects: number of sectors to discard > * @gfp_mask: memory allocation flags (for bio_alloc) > - * @flags: BLKDEV_DISCARD_* flags to control behaviour > * > * Description: > * Issue a discard request for the sectors in question. > */ > int blkdev_issue_discard(struct block_device *bdev, sector_t sector, > - sector_t nr_sects, gfp_t gfp_mask, unsigned long flags) > + sector_t nr_sects, gfp_t gfp_mask) > { > struct bio *bio = NULL; > struct blk_plug plug; > int ret; > > blk_start_plug(&plug); > - ret = __blkdev_issue_discard(bdev, sector, nr_sects, gfp_mask, flags, > - &bio); > + ret = __blkdev_issue_discard(bdev, sector, nr_sects, gfp_mask, &bio); > if (!ret && bio) { > ret = submit_bio_wait(bio); > if (ret == -EOPNOTSUPP) > @@ -314,3 +301,42 @@ int blkdev_issue_zeroout(struct block_device *bdev, sector_t sector, > return ret; > } > EXPORT_SYMBOL(blkdev_issue_zeroout); > + > +int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector, > + sector_t nr_sects, gfp_t gfp) > +{ > + sector_t bs_mask = (bdev_logical_block_size(bdev) >> 9) - 1; > + unsigned int max_sectors = bdev_max_secure_erase_sectors(bdev); > + struct bio *bio = NULL; > + struct blk_plug plug; > + int ret = 0; > + > + if (max_sectors == 0) > + return -EOPNOTSUPP; > + if ((sector | nr_sects) & bs_mask) > + return -EINVAL; > + if (bdev_read_only(bdev)) > + return -EPERM; > + > + blk_start_plug(&plug); > + for (;;) { > + unsigned int len = min_t(sector_t, nr_sects, max_sectors); > + > + bio = blk_next_bio(bio, bdev, 0, REQ_OP_SECURE_ERASE, gfp); > + bio->bi_iter.bi_sector = sector; > + bio->bi_iter.bi_size = len; > + > + sector += len << SECTOR_SHIFT; > + nr_sects -= len << SECTOR_SHIFT; > + if (!nr_sects) { > + ret = submit_bio_wait(bio); > + bio_put(bio); > + break; > + } > + cond_resched(); > + } > + blk_finish_plug(&plug); > + > + return ret; > +} > +EXPORT_SYMBOL(blkdev_issue_secure_erase); > diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c > index fd111c5001256..7e4136a60e1cc 100644 > --- a/block/blk-mq-debugfs.c > +++ b/block/blk-mq-debugfs.c > @@ -115,7 +115,6 @@ static const char *const blk_queue_flag_name[] = { > QUEUE_FLAG_NAME(IO_STAT), > QUEUE_FLAG_NAME(NOXMERGES), > QUEUE_FLAG_NAME(ADD_RANDOM), > - QUEUE_FLAG_NAME(SECERASE), > QUEUE_FLAG_NAME(SAME_FORCE), > QUEUE_FLAG_NAME(DEAD), > QUEUE_FLAG_NAME(INIT_DONE), > diff --git a/block/blk-settings.c b/block/blk-settings.c > index fd83d674afd0a..6ccceb421ed2f 100644 > --- a/block/blk-settings.c > +++ b/block/blk-settings.c > @@ -46,6 +46,7 @@ void blk_set_default_limits(struct queue_limits *lim) > lim->max_zone_append_sectors = 0; > lim->max_discard_sectors = 0; > lim->max_hw_discard_sectors = 0; > + lim->max_secure_erase_sectors = 0; > lim->discard_granularity = 0; > lim->discard_alignment = 0; > lim->discard_misaligned = 0; > @@ -176,6 +177,18 @@ void blk_queue_max_discard_sectors(struct request_queue *q, > } > EXPORT_SYMBOL(blk_queue_max_discard_sectors); > > +/** > + * blk_queue_max_secure_erase_sectors - set max sectors for a secure erase > + * @q: the request queue for the device > + * @max_sectors: maximum number of sectors to secure_erase > + **/ > +void blk_queue_max_secure_erase_sectors(struct request_queue *q, > + unsigned int max_sectors) > +{ > + q->limits.max_secure_erase_sectors = max_sectors; > +} > +EXPORT_SYMBOL(blk_queue_max_secure_erase_sectors); > + > /** > * blk_queue_max_write_zeroes_sectors - set max sectors for a single > * write zeroes > @@ -661,7 +674,8 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b, > t->discard_alignment = lcm_not_zero(t->discard_alignment, alignment) % > t->discard_granularity; > } > - > + t->max_secure_erase_sectors = min_not_zero(t->max_secure_erase_sectors, > + b->max_secure_erase_sectors); > t->zone_write_granularity = max(t->zone_write_granularity, > b->zone_write_granularity); > t->zoned = max(t->zoned, b->zoned); > diff --git a/block/fops.c b/block/fops.c > index 9f2ecec406b04..c0ca3254d38cf 100644 > --- a/block/fops.c > +++ b/block/fops.c > @@ -672,7 +672,7 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start, > break; > case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE: > error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT, > - len >> SECTOR_SHIFT, GFP_KERNEL, 0); > + len >> SECTOR_SHIFT, GFP_KERNEL); > break; > default: > error = -EOPNOTSUPP; > diff --git a/block/ioctl.c b/block/ioctl.c > index c2cd3ba5290ce..5b5027fa78f7e 100644 > --- a/block/ioctl.c > +++ b/block/ioctl.c > @@ -83,7 +83,7 @@ static int compat_blkpg_ioctl(struct block_device *bdev, > #endif > > static int blk_ioctl_discard(struct block_device *bdev, fmode_t mode, > - unsigned long arg, unsigned long flags) > + unsigned long arg) > { > uint64_t range[2]; > uint64_t start, len; > @@ -114,15 +114,43 @@ static int blk_ioctl_discard(struct block_device *bdev, fmode_t mode, > err = truncate_bdev_range(bdev, mode, start, start + len - 1); > if (err) > goto fail; > - > - err = blkdev_issue_discard(bdev, start >> 9, len >> 9, > - GFP_KERNEL, flags); > - > + err = blkdev_issue_discard(bdev, start >> 9, len >> 9, GFP_KERNEL); > fail: > filemap_invalidate_unlock(inode->i_mapping); > return err; > } > > +static int blk_ioctl_secure_erase(struct block_device *bdev, fmode_t mode, > + void __user *argp) > +{ > + uint64_t start, len; > + uint64_t range[2]; > + int err; > + > + if (!(mode & FMODE_WRITE)) > + return -EBADF; > + if (!bdev_max_secure_erase_sectors(bdev)) > + return -EOPNOTSUPP; > + if (copy_from_user(range, argp, sizeof(range))) > + return -EFAULT; > + > + start = range[0]; > + len = range[1]; > + if ((start & 511) || (len & 511)) > + return -EINVAL; > + if (start + len > bdev_nr_bytes(bdev)) > + return -EINVAL; > + > + filemap_invalidate_lock(bdev->bd_inode->i_mapping); > + err = truncate_bdev_range(bdev, mode, start, start + len - 1); > + if (!err) > + err = blkdev_issue_secure_erase(bdev, start >> 9, len >> 9, > + GFP_KERNEL); > + filemap_invalidate_unlock(bdev->bd_inode->i_mapping); > + return err; > +} > + > + > static int blk_ioctl_zeroout(struct block_device *bdev, fmode_t mode, > unsigned long arg) > { > @@ -450,10 +478,9 @@ static int blkdev_common_ioctl(struct block_device *bdev, fmode_t mode, > case BLKROSET: > return blkdev_roset(bdev, mode, cmd, arg); > case BLKDISCARD: > - return blk_ioctl_discard(bdev, mode, arg, 0); > + return blk_ioctl_discard(bdev, mode, arg); > case BLKSECDISCARD: > - return blk_ioctl_discard(bdev, mode, arg, > - BLKDEV_DISCARD_SECURE); > + return blk_ioctl_secure_erase(bdev, mode, argp); > case BLKZEROOUT: > return blk_ioctl_zeroout(bdev, mode, arg); > case BLKGETDISKSEQ: > diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c > index 275c53c7b629e..2957b0b68d600 100644 > --- a/drivers/block/drbd/drbd_receiver.c > +++ b/drivers/block/drbd/drbd_receiver.c > @@ -1547,7 +1547,8 @@ int drbd_issue_discard_or_zero_out(struct drbd_device *device, sector_t start, u > start = tmp; > } > while (nr_sectors >= max_discard_sectors) { > - err |= blkdev_issue_discard(bdev, start, max_discard_sectors, GFP_NOIO, 0); > + err |= blkdev_issue_discard(bdev, start, max_discard_sectors, > + GFP_NOIO); > nr_sectors -= max_discard_sectors; > start += max_discard_sectors; > } > @@ -1559,7 +1560,7 @@ int drbd_issue_discard_or_zero_out(struct drbd_device *device, sector_t start, u > nr = nr_sectors; > nr -= (unsigned int)nr % granularity; > if (nr) { > - err |= blkdev_issue_discard(bdev, start, nr, GFP_NOIO, 0); > + err |= blkdev_issue_discard(bdev, start, nr, GFP_NOIO); > nr_sectors -= nr; > start += nr; > } > diff --git a/drivers/block/rnbd/rnbd-clt.c b/drivers/block/rnbd/rnbd-clt.c > index efa99a3884507..d178be175ad99 100644 > --- a/drivers/block/rnbd/rnbd-clt.c > +++ b/drivers/block/rnbd/rnbd-clt.c > @@ -1365,8 +1365,8 @@ static void setup_request_queue(struct rnbd_clt_dev *dev) > dev->queue->limits.discard_granularity = dev->discard_granularity; > dev->queue->limits.discard_alignment = dev->discard_alignment; > if (dev->secure_discard) > - blk_queue_flag_set(QUEUE_FLAG_SECERASE, dev->queue); > - > + blk_queue_max_secure_erase_sectors(dev->queue, > + dev->max_discard_sectors); > blk_queue_flag_set(QUEUE_FLAG_SAME_COMP, dev->queue); > blk_queue_flag_set(QUEUE_FLAG_SAME_FORCE, dev->queue); > blk_queue_max_segments(dev->queue, dev->max_segments); > diff --git a/drivers/block/rnbd/rnbd-srv-dev.h b/drivers/block/rnbd/rnbd-srv-dev.h > index 1f7e1c8fd4d9b..d080a0de59225 100644 > --- a/drivers/block/rnbd/rnbd-srv-dev.h > +++ b/drivers/block/rnbd/rnbd-srv-dev.h > @@ -44,7 +44,7 @@ static inline int rnbd_dev_get_max_hw_sects(const struct rnbd_dev *dev) > > static inline int rnbd_dev_get_secure_discard(const struct rnbd_dev *dev) > { > - return blk_queue_secure_erase(bdev_get_queue(dev->bdev)); > + return bdev_max_secure_erase_sectors(dev->bdev); > } > > static inline int rnbd_dev_get_max_discard_sects(const struct rnbd_dev *dev) > diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c > index de42458195bc1..a97f2bf5b01b9 100644 > --- a/drivers/block/xen-blkback/blkback.c > +++ b/drivers/block/xen-blkback/blkback.c > @@ -970,7 +970,6 @@ static int dispatch_discard_io(struct xen_blkif_ring *ring, > int status = BLKIF_RSP_OKAY; > struct xen_blkif *blkif = ring->blkif; > struct block_device *bdev = blkif->vbd.bdev; > - unsigned long secure; > struct phys_req preq; > > xen_blkif_get(blkif); > @@ -987,13 +986,15 @@ static int dispatch_discard_io(struct xen_blkif_ring *ring, > } > ring->st_ds_req++; > > - secure = (blkif->vbd.discard_secure && > - (req->u.discard.flag & BLKIF_DISCARD_SECURE)) ? > - BLKDEV_DISCARD_SECURE : 0; > + if (blkif->vbd.discard_secure && > + (req->u.discard.flag & BLKIF_DISCARD_SECURE)) > + err = blkdev_issue_secure_erase(bdev, > + req->u.discard.sector_number, > + req->u.discard.nr_sectors, GFP_KERNEL); > + else > + err = blkdev_issue_discard(bdev, req->u.discard.sector_number, > + req->u.discard.nr_sectors, GFP_KERNEL); > > - err = blkdev_issue_discard(bdev, req->u.discard.sector_number, > - req->u.discard.nr_sectors, > - GFP_KERNEL, secure); > fail_response: > if (err == -EOPNOTSUPP) { > pr_debug("discard op failed, not supported\n"); > diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c > index 83cd08041e6b3..b21bffc9c50bc 100644 > --- a/drivers/block/xen-blkback/xenbus.c > +++ b/drivers/block/xen-blkback/xenbus.c > @@ -484,7 +484,6 @@ static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle, > { > struct xen_vbd *vbd; > struct block_device *bdev; > - struct request_queue *q; > > vbd = &blkif->vbd; > vbd->handle = handle; > @@ -516,11 +515,9 @@ static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle, > if (vbd->bdev->bd_disk->flags & GENHD_FL_REMOVABLE) > vbd->type |= VDISK_REMOVABLE; > > - q = bdev_get_queue(bdev); > if (bdev_write_cache(bdev)) > vbd->flush_support = true; > - > - if (q && blk_queue_secure_erase(q)) > + if (bdev_max_secure_erase_sectors(bdev)) > vbd->discard_secure = true; > > vbd->feature_gnt_persistent = feature_persistent; > diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c > index 253bf835aca1f..9fb7c69f72b2d 100644 > --- a/drivers/block/xen-blkfront.c > +++ b/drivers/block/xen-blkfront.c > @@ -949,7 +949,8 @@ static void blkif_set_queue_limits(struct blkfront_info *info) > info->physical_sector_size; > rq->limits.discard_alignment = info->discard_alignment; > if (info->feature_secdiscard) > - blk_queue_flag_set(QUEUE_FLAG_SECERASE, rq); > + blk_queue_max_secure_erase_sectors(rq, > + get_capacity(gd)); > } > > /* Hard sector size and max sectors impersonate the equiv. hardware. */ > @@ -1605,7 +1606,7 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id) > blkif_req(req)->error = BLK_STS_NOTSUPP; > info->feature_discard = 0; > info->feature_secdiscard = 0; > - blk_queue_flag_clear(QUEUE_FLAG_SECERASE, rq); > + blk_queue_max_secure_erase_sectors(rq, 0); > } > break; > case BLKIF_OP_FLUSH_DISKCACHE: > diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c > index 097577ae3c471..ce13c272c3872 100644 > --- a/drivers/md/bcache/alloc.c > +++ b/drivers/md/bcache/alloc.c > @@ -336,7 +336,7 @@ static int bch_allocator_thread(void *arg) > mutex_unlock(&ca->set->bucket_lock); > blkdev_issue_discard(ca->bdev, > bucket_to_sector(ca->set, bucket), > - ca->sb.bucket_size, GFP_KERNEL, 0); > + ca->sb.bucket_size, GFP_KERNEL); > mutex_lock(&ca->set->bucket_lock); > } > > diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c > index 0dff6907fd00d..e7d42f6335a2a 100644 > --- a/drivers/md/dm-table.c > +++ b/drivers/md/dm-table.c > @@ -1920,9 +1920,7 @@ static int device_not_secure_erase_capable(struct dm_target *ti, > struct dm_dev *dev, sector_t start, > sector_t len, void *data) > { > - struct request_queue *q = bdev_get_queue(dev->bdev); > - > - return !blk_queue_secure_erase(q); > + return !bdev_max_secure_erase_sectors(dev->bdev); > } > > static bool dm_table_supports_secure_erase(struct dm_table *t) > @@ -1975,8 +1973,8 @@ int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q, > q->limits.discard_misaligned = 0; > } > > - if (dm_table_supports_secure_erase(t)) > - blk_queue_flag_set(QUEUE_FLAG_SECERASE, q); > + if (!dm_table_supports_secure_erase(t)) > + q->limits.max_secure_erase_sectors = 0; > > if (dm_table_supports_flush(t, (1UL << QUEUE_FLAG_WC))) { > wc = true; > diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c > index eded4bcc4545f..84c083f766736 100644 > --- a/drivers/md/dm-thin.c > +++ b/drivers/md/dm-thin.c > @@ -398,8 +398,8 @@ static int issue_discard(struct discard_op *op, dm_block_t data_b, dm_block_t da > sector_t s = block_to_sectors(tc->pool, data_b); > sector_t len = block_to_sectors(tc->pool, data_e - data_b); > > - return __blkdev_issue_discard(tc->pool_dev->bdev, s, len, > - GFP_NOWAIT, 0, &op->bio); > + return __blkdev_issue_discard(tc->pool_dev->bdev, s, len, GFP_NOWAIT, > + &op->bio); > } > > static void end_discard(struct discard_op *op, int r) > diff --git a/drivers/md/md.c b/drivers/md/md.c > index 19636c2f2cda4..2587f872c0884 100644 > --- a/drivers/md/md.c > +++ b/drivers/md/md.c > @@ -8584,7 +8584,7 @@ void md_submit_discard_bio(struct mddev *mddev, struct md_rdev *rdev, > { > struct bio *discard_bio = NULL; > > - if (__blkdev_issue_discard(rdev->bdev, start, size, GFP_NOIO, 0, > + if (__blkdev_issue_discard(rdev->bdev, start, size, GFP_NOIO, > &discard_bio) || !discard_bio) > return; > > diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c > index c3cbf9a574a39..094a4042589eb 100644 > --- a/drivers/md/raid5-cache.c > +++ b/drivers/md/raid5-cache.c > @@ -1344,14 +1344,14 @@ static void r5l_write_super_and_discard_space(struct r5l_log *log, > if (log->last_checkpoint < end) { > blkdev_issue_discard(bdev, > log->last_checkpoint + log->rdev->data_offset, > - end - log->last_checkpoint, GFP_NOIO, 0); > + end - log->last_checkpoint, GFP_NOIO); > } else { > blkdev_issue_discard(bdev, > log->last_checkpoint + log->rdev->data_offset, > log->device_size - log->last_checkpoint, > - GFP_NOIO, 0); > + GFP_NOIO); > blkdev_issue_discard(bdev, log->rdev->data_offset, end, > - GFP_NOIO, 0); > + GFP_NOIO); > } > } > > diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c > index cac6315010a3d..a3d4460055716 100644 > --- a/drivers/mmc/core/queue.c > +++ b/drivers/mmc/core/queue.c > @@ -189,7 +189,7 @@ static void mmc_queue_setup_discard(struct request_queue *q, > if (card->pref_erase > max_discard) > q->limits.discard_granularity = SECTOR_SIZE; > if (mmc_can_secure_erase_trim(card)) > - blk_queue_flag_set(QUEUE_FLAG_SECERASE, q); > + blk_queue_max_secure_erase_sectors(q, max_discard); > } > > static unsigned short mmc_get_max_segments(struct mmc_host *host) > diff --git a/drivers/nvme/target/io-cmd-bdev.c b/drivers/nvme/target/io-cmd-bdev.c > index d886c2c59554f..27a72504d31ce 100644 > --- a/drivers/nvme/target/io-cmd-bdev.c > +++ b/drivers/nvme/target/io-cmd-bdev.c > @@ -360,7 +360,7 @@ static u16 nvmet_bdev_discard_range(struct nvmet_req *req, > ret = __blkdev_issue_discard(ns->bdev, > nvmet_lba_to_sect(ns, range->slba), > le32_to_cpu(range->nlb) << (ns->blksize_shift - 9), > - GFP_KERNEL, 0, bio); > + GFP_KERNEL, bio); > if (ret && ret != -EOPNOTSUPP) { > req->error_slba = le64_to_cpu(range->slba); > return errno_to_nvme_status(req, ret); > diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c > index b6ba582b06775..e68f1cc8ef98b 100644 > --- a/drivers/target/target_core_file.c > +++ b/drivers/target/target_core_file.c > @@ -558,7 +558,7 @@ fd_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb) > ret = blkdev_issue_discard(bdev, > target_to_linux_sector(dev, lba), > target_to_linux_sector(dev, nolb), > - GFP_KERNEL, 0); > + GFP_KERNEL); > if (ret < 0) { > pr_warn("FILEIO: blkdev_issue_discard() failed: %d\n", > ret); > diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c > index c4a903b8a47fc..378c80313a0f2 100644 > --- a/drivers/target/target_core_iblock.c > +++ b/drivers/target/target_core_iblock.c > @@ -434,7 +434,7 @@ iblock_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb) > ret = blkdev_issue_discard(bdev, > target_to_linux_sector(dev, lba), > target_to_linux_sector(dev, nolb), > - GFP_KERNEL, 0); > + GFP_KERNEL); > if (ret < 0) { > pr_err("blkdev_issue_discard() failed: %d\n", ret); > return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; > diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c > index efd8deb3ab7e8..5c1d3a564da5a 100644 > --- a/fs/btrfs/extent-tree.c > +++ b/fs/btrfs/extent-tree.c > @@ -1239,7 +1239,7 @@ static int btrfs_issue_discard(struct block_device *bdev, u64 start, u64 len, > > if (size) { > ret = blkdev_issue_discard(bdev, start >> 9, size >> 9, > - GFP_NOFS, 0); > + GFP_NOFS); > if (!ret) > *discarded_bytes += size; > else if (ret != -EOPNOTSUPP) > @@ -1256,7 +1256,7 @@ static int btrfs_issue_discard(struct block_device *bdev, u64 start, u64 len, > > if (bytes_left) { > ret = blkdev_issue_discard(bdev, start >> 9, bytes_left >> 9, > - GFP_NOFS, 0); > + GFP_NOFS); > if (!ret) > *discarded_bytes += bytes_left; > } > diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c > index 6d1820536d88d..ea653d19f9ec7 100644 > --- a/fs/ext4/mballoc.c > +++ b/fs/ext4/mballoc.c > @@ -3629,7 +3629,7 @@ static inline int ext4_issue_discard(struct super_block *sb, > return __blkdev_issue_discard(sb->s_bdev, > (sector_t)discard_block << (sb->s_blocksize_bits - 9), > (sector_t)count << (sb->s_blocksize_bits - 9), > - GFP_NOFS, 0, biop); > + GFP_NOFS, biop); > } else > return sb_issue_discard(sb, discard_block, count, GFP_NOFS, 0); > } > diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c > index 8053d99f3920b..35b6c720c2bc1 100644 > --- a/fs/f2fs/file.c > +++ b/fs/f2fs/file.c > @@ -3685,18 +3685,18 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg) > static int f2fs_secure_erase(struct block_device *bdev, struct inode *inode, > pgoff_t off, block_t block, block_t len, u32 flags) > { > - struct request_queue *q = bdev_get_queue(bdev); > sector_t sector = SECTOR_FROM_BLOCK(block); > sector_t nr_sects = SECTOR_FROM_BLOCK(len); > int ret = 0; > > - if (!q) > - return -ENXIO; > - > - if (flags & F2FS_TRIM_FILE_DISCARD) > - ret = blkdev_issue_discard(bdev, sector, nr_sects, GFP_NOFS, > - blk_queue_secure_erase(q) ? > - BLKDEV_DISCARD_SECURE : 0); > + if (flags & F2FS_TRIM_FILE_DISCARD) { > + if (bdev_max_secure_erase_sectors(bdev)) > + ret = blkdev_issue_secure_erase(bdev, sector, nr_sects, > + GFP_NOFS); > + else > + ret = blkdev_issue_discard(bdev, sector, nr_sects, > + GFP_NOFS); > + } > > if (!ret && (flags & F2FS_TRIM_FILE_ZEROOUT)) { > if (IS_ENCRYPTED(inode)) > diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c > index 71f09adbcba86..e433c61e64b93 100644 > --- a/fs/f2fs/segment.c > +++ b/fs/f2fs/segment.c > @@ -1244,7 +1244,7 @@ static int __submit_discard_cmd(struct f2fs_sb_info *sbi, > err = __blkdev_issue_discard(bdev, > SECTOR_FROM_BLOCK(start), > SECTOR_FROM_BLOCK(len), > - GFP_NOFS, 0, &bio); > + GFP_NOFS, &bio); > submit: > if (err) { > spin_lock_irqsave(&dc->lock, flags); > diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c > index 19d226cd4ff4d..c0cbeeaec2d1a 100644 > --- a/fs/jbd2/journal.c > +++ b/fs/jbd2/journal.c > @@ -1825,7 +1825,7 @@ static int __jbd2_journal_erase(journal_t *journal, unsigned int flags) > err = blkdev_issue_discard(journal->j_dev, > byte_start >> SECTOR_SHIFT, > byte_count >> SECTOR_SHIFT, > - GFP_NOFS, 0); > + GFP_NOFS); > } else if (flags & JBD2_JOURNAL_FLUSH_ZEROOUT) { > err = blkdev_issue_zeroout(journal->j_dev, > byte_start >> SECTOR_SHIFT, > diff --git a/fs/nilfs2/sufile.c b/fs/nilfs2/sufile.c > index e385cca2004a7..77ff8e95421fa 100644 > --- a/fs/nilfs2/sufile.c > +++ b/fs/nilfs2/sufile.c > @@ -1100,7 +1100,7 @@ int nilfs_sufile_trim_fs(struct inode *sufile, struct fstrim_range *range) > ret = blkdev_issue_discard(nilfs->ns_bdev, > start * sects_per_block, > nblocks * sects_per_block, > - GFP_NOFS, 0); > + GFP_NOFS); > if (ret < 0) { > put_bh(su_bh); > goto out_sem; > @@ -1134,7 +1134,7 @@ int nilfs_sufile_trim_fs(struct inode *sufile, struct fstrim_range *range) > ret = blkdev_issue_discard(nilfs->ns_bdev, > start * sects_per_block, > nblocks * sects_per_block, > - GFP_NOFS, 0); > + GFP_NOFS); > if (!ret) > ndiscarded += nblocks; > } > diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c > index dd48a8f74d577..3b4a079c9617c 100644 > --- a/fs/nilfs2/the_nilfs.c > +++ b/fs/nilfs2/the_nilfs.c > @@ -672,7 +672,7 @@ int nilfs_discard_segments(struct the_nilfs *nilfs, __u64 *segnump, > ret = blkdev_issue_discard(nilfs->ns_bdev, > start * sects_per_block, > nblocks * sects_per_block, > - GFP_NOFS, 0); > + GFP_NOFS); > if (ret < 0) > return ret; > nblocks = 0; > @@ -682,7 +682,7 @@ int nilfs_discard_segments(struct the_nilfs *nilfs, __u64 *segnump, > ret = blkdev_issue_discard(nilfs->ns_bdev, > start * sects_per_block, > nblocks * sects_per_block, > - GFP_NOFS, 0); > + GFP_NOFS); > return ret; > } > > diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c > index 5f2e414cfa79b..5781b9e8e3d85 100644 > --- a/fs/ntfs3/super.c > +++ b/fs/ntfs3/super.c > @@ -1333,7 +1333,7 @@ int ntfs_discard(struct ntfs_sb_info *sbi, CLST lcn, CLST len) > return 0; > > err = blkdev_issue_discard(sb->s_bdev, start >> 9, (end - start) >> 9, > - GFP_NOFS, 0); > + GFP_NOFS); > > if (err == -EOPNOTSUPP) > sbi->flags |= NTFS_FLAGS_NODISCARD; > diff --git a/fs/xfs/xfs_discard.c b/fs/xfs/xfs_discard.c > index e2ada115c23f9..c6fe3f6ebb6b0 100644 > --- a/fs/xfs/xfs_discard.c > +++ b/fs/xfs/xfs_discard.c > @@ -114,7 +114,7 @@ xfs_trim_extents( > } > > trace_xfs_discard_extent(mp, agno, fbno, flen); > - error = blkdev_issue_discard(bdev, dbno, dlen, GFP_NOFS, 0); > + error = blkdev_issue_discard(bdev, dbno, dlen, GFP_NOFS); > if (error) > goto out_del_cursor; > *blocks_trimmed += flen; > diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c > index ba57323bfdcea..c9f55e4f09571 100644 > --- a/fs/xfs/xfs_log_cil.c > +++ b/fs/xfs/xfs_log_cil.c > @@ -605,7 +605,7 @@ xlog_discard_busy_extents( > error = __blkdev_issue_discard(mp->m_ddev_targp->bt_bdev, > XFS_AGB_TO_DADDR(mp, busyp->agno, busyp->bno), > XFS_FSB_TO_BB(mp, busyp->length), > - GFP_NOFS, 0, &bio); > + GFP_NOFS, &bio); > if (error && error != -EOPNOTSUPP) { > xfs_info(mp, > "discard failed for extent [0x%llx,%u], error %d", > diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h > index f1cf557ea20ef..c9b5925af5a3b 100644 > --- a/include/linux/blkdev.h > +++ b/include/linux/blkdev.h > @@ -248,6 +248,7 @@ struct queue_limits { > unsigned int io_opt; > unsigned int max_discard_sectors; > unsigned int max_hw_discard_sectors; > + unsigned int max_secure_erase_sectors; > unsigned int max_write_zeroes_sectors; > unsigned int max_zone_append_sectors; > unsigned int discard_granularity; > @@ -542,7 +543,6 @@ struct request_queue { > #define QUEUE_FLAG_IO_STAT 7 /* do disk/partitions IO accounting */ > #define QUEUE_FLAG_NOXMERGES 9 /* No extended merges */ > #define QUEUE_FLAG_ADD_RANDOM 10 /* Contributes to random pool */ > -#define QUEUE_FLAG_SECERASE 11 /* supports secure erase */ > #define QUEUE_FLAG_SAME_FORCE 12 /* force complete on same CPU */ > #define QUEUE_FLAG_DEAD 13 /* queue tear-down finished */ > #define QUEUE_FLAG_INIT_DONE 14 /* queue is initialized */ > @@ -583,8 +583,6 @@ bool blk_queue_flag_test_and_set(unsigned int flag, struct request_queue *q); > #define blk_queue_add_random(q) test_bit(QUEUE_FLAG_ADD_RANDOM, &(q)->queue_flags) > #define blk_queue_zone_resetall(q) \ > test_bit(QUEUE_FLAG_ZONE_RESETALL, &(q)->queue_flags) > -#define blk_queue_secure_erase(q) \ > - (test_bit(QUEUE_FLAG_SECERASE, &(q)->queue_flags)) > #define blk_queue_dax(q) test_bit(QUEUE_FLAG_DAX, &(q)->queue_flags) > #define blk_queue_pci_p2pdma(q) \ > test_bit(QUEUE_FLAG_PCI_P2PDMA, &(q)->queue_flags) > @@ -947,6 +945,8 @@ extern void blk_queue_chunk_sectors(struct request_queue *, unsigned int); > extern void blk_queue_max_segments(struct request_queue *, unsigned short); > extern void blk_queue_max_discard_segments(struct request_queue *, > unsigned short); > +void blk_queue_max_secure_erase_sectors(struct request_queue *q, > + unsigned int max_sectors); > extern void blk_queue_max_segment_size(struct request_queue *, unsigned int); > extern void blk_queue_max_discard_sectors(struct request_queue *q, > unsigned int max_discard_sectors); > @@ -1087,13 +1087,12 @@ static inline long nr_blockdev_pages(void) > > extern void blk_io_schedule(void); > > -#define BLKDEV_DISCARD_SECURE (1 << 0) /* issue a secure erase */ > - > -extern int blkdev_issue_discard(struct block_device *bdev, sector_t sector, > - sector_t nr_sects, gfp_t gfp_mask, unsigned long flags); > -extern int __blkdev_issue_discard(struct block_device *bdev, sector_t sector, > - sector_t nr_sects, gfp_t gfp_mask, int flags, > - struct bio **biop); > +int blkdev_issue_discard(struct block_device *bdev, sector_t sector, > + sector_t nr_sects, gfp_t gfp_mask); > +int __blkdev_issue_discard(struct block_device *bdev, sector_t sector, > + sector_t nr_sects, gfp_t gfp_mask, struct bio **biop); > +int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector, > + sector_t nr_sects, gfp_t gfp); > > #define BLKDEV_ZERO_NOUNMAP (1 << 0) /* do not free blocks */ > #define BLKDEV_ZERO_NOFALLBACK (1 << 1) /* don't write explicit zeroes */ > @@ -1112,7 +1111,7 @@ static inline int sb_issue_discard(struct super_block *sb, sector_t block, > SECTOR_SHIFT), > nr_blocks << (sb->s_blocksize_bits - > SECTOR_SHIFT), > - gfp_mask, flags); > + gfp_mask); > } > static inline int sb_issue_zeroout(struct super_block *sb, sector_t block, > sector_t nr_blocks, gfp_t gfp_mask) > @@ -1262,6 +1261,12 @@ static inline unsigned int bdev_discard_granularity(struct block_device *bdev) > return bdev_get_queue(bdev)->limits.discard_granularity; > } > > +static inline unsigned int > +bdev_max_secure_erase_sectors(struct block_device *bdev) > +{ > + return bdev_get_queue(bdev)->limits.max_secure_erase_sectors; > +} > + > static inline unsigned int bdev_write_zeroes_sectors(struct block_device *bdev) > { > struct request_queue *q = bdev_get_queue(bdev); > diff --git a/mm/swapfile.c b/mm/swapfile.c > index 5d9cedf9e7b84..a2b31fea0c42e 100644 > --- a/mm/swapfile.c > +++ b/mm/swapfile.c > @@ -179,7 +179,7 @@ static int discard_swap(struct swap_info_struct *si) > nr_blocks = ((sector_t)se->nr_pages - 1) << (PAGE_SHIFT - 9); > if (nr_blocks) { > err = blkdev_issue_discard(si->bdev, start_block, > - nr_blocks, GFP_KERNEL, 0); > + nr_blocks, GFP_KERNEL); > if (err) > return err; > cond_resched(); > @@ -190,7 +190,7 @@ static int discard_swap(struct swap_info_struct *si) > nr_blocks = (sector_t)se->nr_pages << (PAGE_SHIFT - 9); > > err = blkdev_issue_discard(si->bdev, start_block, > - nr_blocks, GFP_KERNEL, 0); > + nr_blocks, GFP_KERNEL); > if (err) > break; > > @@ -254,7 +254,7 @@ static void discard_swap_cluster(struct swap_info_struct *si, > start_block <<= PAGE_SHIFT - 9; > nr_blocks <<= PAGE_SHIFT - 9; > if (blkdev_issue_discard(si->bdev, start_block, > - nr_blocks, GFP_NOIO, 0)) > + nr_blocks, GFP_NOIO)) > break; > > se = next_se(se); > -- > 2.30.2 > For nilfs2 pieces, Acked-by: Ryusuke Konishi <konishi.ryusuke@gmail.com> Thanks, Ryusuke Konishi
On Wed, Apr 06, 2022 at 08:05:15AM +0200, Christoph Hellwig wrote: > Secure erase is a very different operation from discard in that it is > a data integrity operation vs hint. Fully split the limits and helper > infrastructure to make the separation more clear. > > Signed-off-by: Christoph Hellwig <hch@lst.de> > --- > block/blk-core.c | 2 +- > block/blk-lib.c | 64 ++++++++++++++++++++--------- > block/blk-mq-debugfs.c | 1 - > block/blk-settings.c | 16 +++++++- > block/fops.c | 2 +- > block/ioctl.c | 43 +++++++++++++++---- > drivers/block/drbd/drbd_receiver.c | 5 ++- > drivers/block/rnbd/rnbd-clt.c | 4 +- > drivers/block/rnbd/rnbd-srv-dev.h | 2 +- > drivers/block/xen-blkback/blkback.c | 15 +++---- > drivers/block/xen-blkback/xenbus.c | 5 +-- > drivers/block/xen-blkfront.c | 5 ++- > drivers/md/bcache/alloc.c | 2 +- > drivers/md/dm-table.c | 8 ++-- > drivers/md/dm-thin.c | 4 +- > drivers/md/md.c | 2 +- > drivers/md/raid5-cache.c | 6 +-- > drivers/mmc/core/queue.c | 2 +- > drivers/nvme/target/io-cmd-bdev.c | 2 +- > drivers/target/target_core_file.c | 2 +- > drivers/target/target_core_iblock.c | 2 +- For > fs/btrfs/extent-tree.c | 4 +- Acked-by: David Sterba <dsterba@suse.com>
On 04/06, Christoph Hellwig wrote: > Secure erase is a very different operation from discard in that it is > a data integrity operation vs hint. Fully split the limits and helper > infrastructure to make the separation more clear. > > Signed-off-by: Christoph Hellwig <hch@lst.de> > --- > block/blk-core.c | 2 +- > block/blk-lib.c | 64 ++++++++++++++++++++--------- > block/blk-mq-debugfs.c | 1 - > block/blk-settings.c | 16 +++++++- > block/fops.c | 2 +- > block/ioctl.c | 43 +++++++++++++++---- > drivers/block/drbd/drbd_receiver.c | 5 ++- > drivers/block/rnbd/rnbd-clt.c | 4 +- > drivers/block/rnbd/rnbd-srv-dev.h | 2 +- > drivers/block/xen-blkback/blkback.c | 15 +++---- > drivers/block/xen-blkback/xenbus.c | 5 +-- > drivers/block/xen-blkfront.c | 5 ++- > drivers/md/bcache/alloc.c | 2 +- > drivers/md/dm-table.c | 8 ++-- > drivers/md/dm-thin.c | 4 +- > drivers/md/md.c | 2 +- > drivers/md/raid5-cache.c | 6 +-- > drivers/mmc/core/queue.c | 2 +- > drivers/nvme/target/io-cmd-bdev.c | 2 +- > drivers/target/target_core_file.c | 2 +- > drivers/target/target_core_iblock.c | 2 +- > fs/btrfs/extent-tree.c | 4 +- > fs/ext4/mballoc.c | 2 +- > fs/f2fs/file.c | 16 ++++---- > fs/f2fs/segment.c | 2 +- For f2fs, Acked-by: Jaegeuk Kim <jaegeuk@kernel.org> Thank you, > fs/jbd2/journal.c | 2 +- > fs/nilfs2/sufile.c | 4 +- > fs/nilfs2/the_nilfs.c | 4 +- > fs/ntfs3/super.c | 2 +- > fs/xfs/xfs_discard.c | 2 +- > fs/xfs/xfs_log_cil.c | 2 +- > include/linux/blkdev.h | 27 +++++++----- > mm/swapfile.c | 6 +-- > 33 files changed, 168 insertions(+), 99 deletions(-) > > diff --git a/block/blk-core.c b/block/blk-core.c > index b5c3a8049134c..ee18b6a699bdf 100644 > --- a/block/blk-core.c > +++ b/block/blk-core.c > @@ -824,7 +824,7 @@ void submit_bio_noacct(struct bio *bio) > goto not_supported; > break; > case REQ_OP_SECURE_ERASE: > - if (!blk_queue_secure_erase(q)) > + if (!bdev_max_secure_erase_sectors(bdev)) > goto not_supported; > break; > case REQ_OP_ZONE_APPEND: > diff --git a/block/blk-lib.c b/block/blk-lib.c > index 43aa4d7fe859f..09b7e1200c0f4 100644 > --- a/block/blk-lib.c > +++ b/block/blk-lib.c > @@ -36,26 +36,15 @@ static sector_t bio_discard_limit(struct block_device *bdev, sector_t sector) > } > > int __blkdev_issue_discard(struct block_device *bdev, sector_t sector, > - sector_t nr_sects, gfp_t gfp_mask, int flags, > - struct bio **biop) > + sector_t nr_sects, gfp_t gfp_mask, struct bio **biop) > { > - struct request_queue *q = bdev_get_queue(bdev); > struct bio *bio = *biop; > - unsigned int op; > sector_t bs_mask; > > if (bdev_read_only(bdev)) > return -EPERM; > - > - if (flags & BLKDEV_DISCARD_SECURE) { > - if (!blk_queue_secure_erase(q)) > - return -EOPNOTSUPP; > - op = REQ_OP_SECURE_ERASE; > - } else { > - if (!bdev_max_discard_sectors(bdev)) > - return -EOPNOTSUPP; > - op = REQ_OP_DISCARD; > - } > + if (!bdev_max_discard_sectors(bdev)) > + return -EOPNOTSUPP; > > /* In case the discard granularity isn't set by buggy device driver */ > if (WARN_ON_ONCE(!bdev_discard_granularity(bdev))) { > @@ -77,7 +66,7 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector, > sector_t req_sects = > min(nr_sects, bio_discard_limit(bdev, sector)); > > - bio = blk_next_bio(bio, bdev, 0, op, gfp_mask); > + bio = blk_next_bio(bio, bdev, 0, REQ_OP_DISCARD, gfp_mask); > bio->bi_iter.bi_sector = sector; > bio->bi_iter.bi_size = req_sects << 9; > sector += req_sects; > @@ -103,21 +92,19 @@ EXPORT_SYMBOL(__blkdev_issue_discard); > * @sector: start sector > * @nr_sects: number of sectors to discard > * @gfp_mask: memory allocation flags (for bio_alloc) > - * @flags: BLKDEV_DISCARD_* flags to control behaviour > * > * Description: > * Issue a discard request for the sectors in question. > */ > int blkdev_issue_discard(struct block_device *bdev, sector_t sector, > - sector_t nr_sects, gfp_t gfp_mask, unsigned long flags) > + sector_t nr_sects, gfp_t gfp_mask) > { > struct bio *bio = NULL; > struct blk_plug plug; > int ret; > > blk_start_plug(&plug); > - ret = __blkdev_issue_discard(bdev, sector, nr_sects, gfp_mask, flags, > - &bio); > + ret = __blkdev_issue_discard(bdev, sector, nr_sects, gfp_mask, &bio); > if (!ret && bio) { > ret = submit_bio_wait(bio); > if (ret == -EOPNOTSUPP) > @@ -314,3 +301,42 @@ int blkdev_issue_zeroout(struct block_device *bdev, sector_t sector, > return ret; > } > EXPORT_SYMBOL(blkdev_issue_zeroout); > + > +int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector, > + sector_t nr_sects, gfp_t gfp) > +{ > + sector_t bs_mask = (bdev_logical_block_size(bdev) >> 9) - 1; > + unsigned int max_sectors = bdev_max_secure_erase_sectors(bdev); > + struct bio *bio = NULL; > + struct blk_plug plug; > + int ret = 0; > + > + if (max_sectors == 0) > + return -EOPNOTSUPP; > + if ((sector | nr_sects) & bs_mask) > + return -EINVAL; > + if (bdev_read_only(bdev)) > + return -EPERM; > + > + blk_start_plug(&plug); > + for (;;) { > + unsigned int len = min_t(sector_t, nr_sects, max_sectors); > + > + bio = blk_next_bio(bio, bdev, 0, REQ_OP_SECURE_ERASE, gfp); > + bio->bi_iter.bi_sector = sector; > + bio->bi_iter.bi_size = len; > + > + sector += len << SECTOR_SHIFT; > + nr_sects -= len << SECTOR_SHIFT; > + if (!nr_sects) { > + ret = submit_bio_wait(bio); > + bio_put(bio); > + break; > + } > + cond_resched(); > + } > + blk_finish_plug(&plug); > + > + return ret; > +} > +EXPORT_SYMBOL(blkdev_issue_secure_erase); > diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c > index fd111c5001256..7e4136a60e1cc 100644 > --- a/block/blk-mq-debugfs.c > +++ b/block/blk-mq-debugfs.c > @@ -115,7 +115,6 @@ static const char *const blk_queue_flag_name[] = { > QUEUE_FLAG_NAME(IO_STAT), > QUEUE_FLAG_NAME(NOXMERGES), > QUEUE_FLAG_NAME(ADD_RANDOM), > - QUEUE_FLAG_NAME(SECERASE), > QUEUE_FLAG_NAME(SAME_FORCE), > QUEUE_FLAG_NAME(DEAD), > QUEUE_FLAG_NAME(INIT_DONE), > diff --git a/block/blk-settings.c b/block/blk-settings.c > index fd83d674afd0a..6ccceb421ed2f 100644 > --- a/block/blk-settings.c > +++ b/block/blk-settings.c > @@ -46,6 +46,7 @@ void blk_set_default_limits(struct queue_limits *lim) > lim->max_zone_append_sectors = 0; > lim->max_discard_sectors = 0; > lim->max_hw_discard_sectors = 0; > + lim->max_secure_erase_sectors = 0; > lim->discard_granularity = 0; > lim->discard_alignment = 0; > lim->discard_misaligned = 0; > @@ -176,6 +177,18 @@ void blk_queue_max_discard_sectors(struct request_queue *q, > } > EXPORT_SYMBOL(blk_queue_max_discard_sectors); > > +/** > + * blk_queue_max_secure_erase_sectors - set max sectors for a secure erase > + * @q: the request queue for the device > + * @max_sectors: maximum number of sectors to secure_erase > + **/ > +void blk_queue_max_secure_erase_sectors(struct request_queue *q, > + unsigned int max_sectors) > +{ > + q->limits.max_secure_erase_sectors = max_sectors; > +} > +EXPORT_SYMBOL(blk_queue_max_secure_erase_sectors); > + > /** > * blk_queue_max_write_zeroes_sectors - set max sectors for a single > * write zeroes > @@ -661,7 +674,8 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b, > t->discard_alignment = lcm_not_zero(t->discard_alignment, alignment) % > t->discard_granularity; > } > - > + t->max_secure_erase_sectors = min_not_zero(t->max_secure_erase_sectors, > + b->max_secure_erase_sectors); > t->zone_write_granularity = max(t->zone_write_granularity, > b->zone_write_granularity); > t->zoned = max(t->zoned, b->zoned); > diff --git a/block/fops.c b/block/fops.c > index 9f2ecec406b04..c0ca3254d38cf 100644 > --- a/block/fops.c > +++ b/block/fops.c > @@ -672,7 +672,7 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start, > break; > case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE: > error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT, > - len >> SECTOR_SHIFT, GFP_KERNEL, 0); > + len >> SECTOR_SHIFT, GFP_KERNEL); > break; > default: > error = -EOPNOTSUPP; > diff --git a/block/ioctl.c b/block/ioctl.c > index c2cd3ba5290ce..5b5027fa78f7e 100644 > --- a/block/ioctl.c > +++ b/block/ioctl.c > @@ -83,7 +83,7 @@ static int compat_blkpg_ioctl(struct block_device *bdev, > #endif > > static int blk_ioctl_discard(struct block_device *bdev, fmode_t mode, > - unsigned long arg, unsigned long flags) > + unsigned long arg) > { > uint64_t range[2]; > uint64_t start, len; > @@ -114,15 +114,43 @@ static int blk_ioctl_discard(struct block_device *bdev, fmode_t mode, > err = truncate_bdev_range(bdev, mode, start, start + len - 1); > if (err) > goto fail; > - > - err = blkdev_issue_discard(bdev, start >> 9, len >> 9, > - GFP_KERNEL, flags); > - > + err = blkdev_issue_discard(bdev, start >> 9, len >> 9, GFP_KERNEL); > fail: > filemap_invalidate_unlock(inode->i_mapping); > return err; > } > > +static int blk_ioctl_secure_erase(struct block_device *bdev, fmode_t mode, > + void __user *argp) > +{ > + uint64_t start, len; > + uint64_t range[2]; > + int err; > + > + if (!(mode & FMODE_WRITE)) > + return -EBADF; > + if (!bdev_max_secure_erase_sectors(bdev)) > + return -EOPNOTSUPP; > + if (copy_from_user(range, argp, sizeof(range))) > + return -EFAULT; > + > + start = range[0]; > + len = range[1]; > + if ((start & 511) || (len & 511)) > + return -EINVAL; > + if (start + len > bdev_nr_bytes(bdev)) > + return -EINVAL; > + > + filemap_invalidate_lock(bdev->bd_inode->i_mapping); > + err = truncate_bdev_range(bdev, mode, start, start + len - 1); > + if (!err) > + err = blkdev_issue_secure_erase(bdev, start >> 9, len >> 9, > + GFP_KERNEL); > + filemap_invalidate_unlock(bdev->bd_inode->i_mapping); > + return err; > +} > + > + > static int blk_ioctl_zeroout(struct block_device *bdev, fmode_t mode, > unsigned long arg) > { > @@ -450,10 +478,9 @@ static int blkdev_common_ioctl(struct block_device *bdev, fmode_t mode, > case BLKROSET: > return blkdev_roset(bdev, mode, cmd, arg); > case BLKDISCARD: > - return blk_ioctl_discard(bdev, mode, arg, 0); > + return blk_ioctl_discard(bdev, mode, arg); > case BLKSECDISCARD: > - return blk_ioctl_discard(bdev, mode, arg, > - BLKDEV_DISCARD_SECURE); > + return blk_ioctl_secure_erase(bdev, mode, argp); > case BLKZEROOUT: > return blk_ioctl_zeroout(bdev, mode, arg); > case BLKGETDISKSEQ: > diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c > index 275c53c7b629e..2957b0b68d600 100644 > --- a/drivers/block/drbd/drbd_receiver.c > +++ b/drivers/block/drbd/drbd_receiver.c > @@ -1547,7 +1547,8 @@ int drbd_issue_discard_or_zero_out(struct drbd_device *device, sector_t start, u > start = tmp; > } > while (nr_sectors >= max_discard_sectors) { > - err |= blkdev_issue_discard(bdev, start, max_discard_sectors, GFP_NOIO, 0); > + err |= blkdev_issue_discard(bdev, start, max_discard_sectors, > + GFP_NOIO); > nr_sectors -= max_discard_sectors; > start += max_discard_sectors; > } > @@ -1559,7 +1560,7 @@ int drbd_issue_discard_or_zero_out(struct drbd_device *device, sector_t start, u > nr = nr_sectors; > nr -= (unsigned int)nr % granularity; > if (nr) { > - err |= blkdev_issue_discard(bdev, start, nr, GFP_NOIO, 0); > + err |= blkdev_issue_discard(bdev, start, nr, GFP_NOIO); > nr_sectors -= nr; > start += nr; > } > diff --git a/drivers/block/rnbd/rnbd-clt.c b/drivers/block/rnbd/rnbd-clt.c > index efa99a3884507..d178be175ad99 100644 > --- a/drivers/block/rnbd/rnbd-clt.c > +++ b/drivers/block/rnbd/rnbd-clt.c > @@ -1365,8 +1365,8 @@ static void setup_request_queue(struct rnbd_clt_dev *dev) > dev->queue->limits.discard_granularity = dev->discard_granularity; > dev->queue->limits.discard_alignment = dev->discard_alignment; > if (dev->secure_discard) > - blk_queue_flag_set(QUEUE_FLAG_SECERASE, dev->queue); > - > + blk_queue_max_secure_erase_sectors(dev->queue, > + dev->max_discard_sectors); > blk_queue_flag_set(QUEUE_FLAG_SAME_COMP, dev->queue); > blk_queue_flag_set(QUEUE_FLAG_SAME_FORCE, dev->queue); > blk_queue_max_segments(dev->queue, dev->max_segments); > diff --git a/drivers/block/rnbd/rnbd-srv-dev.h b/drivers/block/rnbd/rnbd-srv-dev.h > index 1f7e1c8fd4d9b..d080a0de59225 100644 > --- a/drivers/block/rnbd/rnbd-srv-dev.h > +++ b/drivers/block/rnbd/rnbd-srv-dev.h > @@ -44,7 +44,7 @@ static inline int rnbd_dev_get_max_hw_sects(const struct rnbd_dev *dev) > > static inline int rnbd_dev_get_secure_discard(const struct rnbd_dev *dev) > { > - return blk_queue_secure_erase(bdev_get_queue(dev->bdev)); > + return bdev_max_secure_erase_sectors(dev->bdev); > } > > static inline int rnbd_dev_get_max_discard_sects(const struct rnbd_dev *dev) > diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c > index de42458195bc1..a97f2bf5b01b9 100644 > --- a/drivers/block/xen-blkback/blkback.c > +++ b/drivers/block/xen-blkback/blkback.c > @@ -970,7 +970,6 @@ static int dispatch_discard_io(struct xen_blkif_ring *ring, > int status = BLKIF_RSP_OKAY; > struct xen_blkif *blkif = ring->blkif; > struct block_device *bdev = blkif->vbd.bdev; > - unsigned long secure; > struct phys_req preq; > > xen_blkif_get(blkif); > @@ -987,13 +986,15 @@ static int dispatch_discard_io(struct xen_blkif_ring *ring, > } > ring->st_ds_req++; > > - secure = (blkif->vbd.discard_secure && > - (req->u.discard.flag & BLKIF_DISCARD_SECURE)) ? > - BLKDEV_DISCARD_SECURE : 0; > + if (blkif->vbd.discard_secure && > + (req->u.discard.flag & BLKIF_DISCARD_SECURE)) > + err = blkdev_issue_secure_erase(bdev, > + req->u.discard.sector_number, > + req->u.discard.nr_sectors, GFP_KERNEL); > + else > + err = blkdev_issue_discard(bdev, req->u.discard.sector_number, > + req->u.discard.nr_sectors, GFP_KERNEL); > > - err = blkdev_issue_discard(bdev, req->u.discard.sector_number, > - req->u.discard.nr_sectors, > - GFP_KERNEL, secure); > fail_response: > if (err == -EOPNOTSUPP) { > pr_debug("discard op failed, not supported\n"); > diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c > index 83cd08041e6b3..b21bffc9c50bc 100644 > --- a/drivers/block/xen-blkback/xenbus.c > +++ b/drivers/block/xen-blkback/xenbus.c > @@ -484,7 +484,6 @@ static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle, > { > struct xen_vbd *vbd; > struct block_device *bdev; > - struct request_queue *q; > > vbd = &blkif->vbd; > vbd->handle = handle; > @@ -516,11 +515,9 @@ static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle, > if (vbd->bdev->bd_disk->flags & GENHD_FL_REMOVABLE) > vbd->type |= VDISK_REMOVABLE; > > - q = bdev_get_queue(bdev); > if (bdev_write_cache(bdev)) > vbd->flush_support = true; > - > - if (q && blk_queue_secure_erase(q)) > + if (bdev_max_secure_erase_sectors(bdev)) > vbd->discard_secure = true; > > vbd->feature_gnt_persistent = feature_persistent; > diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c > index 253bf835aca1f..9fb7c69f72b2d 100644 > --- a/drivers/block/xen-blkfront.c > +++ b/drivers/block/xen-blkfront.c > @@ -949,7 +949,8 @@ static void blkif_set_queue_limits(struct blkfront_info *info) > info->physical_sector_size; > rq->limits.discard_alignment = info->discard_alignment; > if (info->feature_secdiscard) > - blk_queue_flag_set(QUEUE_FLAG_SECERASE, rq); > + blk_queue_max_secure_erase_sectors(rq, > + get_capacity(gd)); > } > > /* Hard sector size and max sectors impersonate the equiv. hardware. */ > @@ -1605,7 +1606,7 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id) > blkif_req(req)->error = BLK_STS_NOTSUPP; > info->feature_discard = 0; > info->feature_secdiscard = 0; > - blk_queue_flag_clear(QUEUE_FLAG_SECERASE, rq); > + blk_queue_max_secure_erase_sectors(rq, 0); > } > break; > case BLKIF_OP_FLUSH_DISKCACHE: > diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c > index 097577ae3c471..ce13c272c3872 100644 > --- a/drivers/md/bcache/alloc.c > +++ b/drivers/md/bcache/alloc.c > @@ -336,7 +336,7 @@ static int bch_allocator_thread(void *arg) > mutex_unlock(&ca->set->bucket_lock); > blkdev_issue_discard(ca->bdev, > bucket_to_sector(ca->set, bucket), > - ca->sb.bucket_size, GFP_KERNEL, 0); > + ca->sb.bucket_size, GFP_KERNEL); > mutex_lock(&ca->set->bucket_lock); > } > > diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c > index 0dff6907fd00d..e7d42f6335a2a 100644 > --- a/drivers/md/dm-table.c > +++ b/drivers/md/dm-table.c > @@ -1920,9 +1920,7 @@ static int device_not_secure_erase_capable(struct dm_target *ti, > struct dm_dev *dev, sector_t start, > sector_t len, void *data) > { > - struct request_queue *q = bdev_get_queue(dev->bdev); > - > - return !blk_queue_secure_erase(q); > + return !bdev_max_secure_erase_sectors(dev->bdev); > } > > static bool dm_table_supports_secure_erase(struct dm_table *t) > @@ -1975,8 +1973,8 @@ int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q, > q->limits.discard_misaligned = 0; > } > > - if (dm_table_supports_secure_erase(t)) > - blk_queue_flag_set(QUEUE_FLAG_SECERASE, q); > + if (!dm_table_supports_secure_erase(t)) > + q->limits.max_secure_erase_sectors = 0; > > if (dm_table_supports_flush(t, (1UL << QUEUE_FLAG_WC))) { > wc = true; > diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c > index eded4bcc4545f..84c083f766736 100644 > --- a/drivers/md/dm-thin.c > +++ b/drivers/md/dm-thin.c > @@ -398,8 +398,8 @@ static int issue_discard(struct discard_op *op, dm_block_t data_b, dm_block_t da > sector_t s = block_to_sectors(tc->pool, data_b); > sector_t len = block_to_sectors(tc->pool, data_e - data_b); > > - return __blkdev_issue_discard(tc->pool_dev->bdev, s, len, > - GFP_NOWAIT, 0, &op->bio); > + return __blkdev_issue_discard(tc->pool_dev->bdev, s, len, GFP_NOWAIT, > + &op->bio); > } > > static void end_discard(struct discard_op *op, int r) > diff --git a/drivers/md/md.c b/drivers/md/md.c > index 19636c2f2cda4..2587f872c0884 100644 > --- a/drivers/md/md.c > +++ b/drivers/md/md.c > @@ -8584,7 +8584,7 @@ void md_submit_discard_bio(struct mddev *mddev, struct md_rdev *rdev, > { > struct bio *discard_bio = NULL; > > - if (__blkdev_issue_discard(rdev->bdev, start, size, GFP_NOIO, 0, > + if (__blkdev_issue_discard(rdev->bdev, start, size, GFP_NOIO, > &discard_bio) || !discard_bio) > return; > > diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c > index c3cbf9a574a39..094a4042589eb 100644 > --- a/drivers/md/raid5-cache.c > +++ b/drivers/md/raid5-cache.c > @@ -1344,14 +1344,14 @@ static void r5l_write_super_and_discard_space(struct r5l_log *log, > if (log->last_checkpoint < end) { > blkdev_issue_discard(bdev, > log->last_checkpoint + log->rdev->data_offset, > - end - log->last_checkpoint, GFP_NOIO, 0); > + end - log->last_checkpoint, GFP_NOIO); > } else { > blkdev_issue_discard(bdev, > log->last_checkpoint + log->rdev->data_offset, > log->device_size - log->last_checkpoint, > - GFP_NOIO, 0); > + GFP_NOIO); > blkdev_issue_discard(bdev, log->rdev->data_offset, end, > - GFP_NOIO, 0); > + GFP_NOIO); > } > } > > diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c > index cac6315010a3d..a3d4460055716 100644 > --- a/drivers/mmc/core/queue.c > +++ b/drivers/mmc/core/queue.c > @@ -189,7 +189,7 @@ static void mmc_queue_setup_discard(struct request_queue *q, > if (card->pref_erase > max_discard) > q->limits.discard_granularity = SECTOR_SIZE; > if (mmc_can_secure_erase_trim(card)) > - blk_queue_flag_set(QUEUE_FLAG_SECERASE, q); > + blk_queue_max_secure_erase_sectors(q, max_discard); > } > > static unsigned short mmc_get_max_segments(struct mmc_host *host) > diff --git a/drivers/nvme/target/io-cmd-bdev.c b/drivers/nvme/target/io-cmd-bdev.c > index d886c2c59554f..27a72504d31ce 100644 > --- a/drivers/nvme/target/io-cmd-bdev.c > +++ b/drivers/nvme/target/io-cmd-bdev.c > @@ -360,7 +360,7 @@ static u16 nvmet_bdev_discard_range(struct nvmet_req *req, > ret = __blkdev_issue_discard(ns->bdev, > nvmet_lba_to_sect(ns, range->slba), > le32_to_cpu(range->nlb) << (ns->blksize_shift - 9), > - GFP_KERNEL, 0, bio); > + GFP_KERNEL, bio); > if (ret && ret != -EOPNOTSUPP) { > req->error_slba = le64_to_cpu(range->slba); > return errno_to_nvme_status(req, ret); > diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c > index b6ba582b06775..e68f1cc8ef98b 100644 > --- a/drivers/target/target_core_file.c > +++ b/drivers/target/target_core_file.c > @@ -558,7 +558,7 @@ fd_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb) > ret = blkdev_issue_discard(bdev, > target_to_linux_sector(dev, lba), > target_to_linux_sector(dev, nolb), > - GFP_KERNEL, 0); > + GFP_KERNEL); > if (ret < 0) { > pr_warn("FILEIO: blkdev_issue_discard() failed: %d\n", > ret); > diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c > index c4a903b8a47fc..378c80313a0f2 100644 > --- a/drivers/target/target_core_iblock.c > +++ b/drivers/target/target_core_iblock.c > @@ -434,7 +434,7 @@ iblock_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb) > ret = blkdev_issue_discard(bdev, > target_to_linux_sector(dev, lba), > target_to_linux_sector(dev, nolb), > - GFP_KERNEL, 0); > + GFP_KERNEL); > if (ret < 0) { > pr_err("blkdev_issue_discard() failed: %d\n", ret); > return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; > diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c > index efd8deb3ab7e8..5c1d3a564da5a 100644 > --- a/fs/btrfs/extent-tree.c > +++ b/fs/btrfs/extent-tree.c > @@ -1239,7 +1239,7 @@ static int btrfs_issue_discard(struct block_device *bdev, u64 start, u64 len, > > if (size) { > ret = blkdev_issue_discard(bdev, start >> 9, size >> 9, > - GFP_NOFS, 0); > + GFP_NOFS); > if (!ret) > *discarded_bytes += size; > else if (ret != -EOPNOTSUPP) > @@ -1256,7 +1256,7 @@ static int btrfs_issue_discard(struct block_device *bdev, u64 start, u64 len, > > if (bytes_left) { > ret = blkdev_issue_discard(bdev, start >> 9, bytes_left >> 9, > - GFP_NOFS, 0); > + GFP_NOFS); > if (!ret) > *discarded_bytes += bytes_left; > } > diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c > index 6d1820536d88d..ea653d19f9ec7 100644 > --- a/fs/ext4/mballoc.c > +++ b/fs/ext4/mballoc.c > @@ -3629,7 +3629,7 @@ static inline int ext4_issue_discard(struct super_block *sb, > return __blkdev_issue_discard(sb->s_bdev, > (sector_t)discard_block << (sb->s_blocksize_bits - 9), > (sector_t)count << (sb->s_blocksize_bits - 9), > - GFP_NOFS, 0, biop); > + GFP_NOFS, biop); > } else > return sb_issue_discard(sb, discard_block, count, GFP_NOFS, 0); > } > diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c > index 8053d99f3920b..35b6c720c2bc1 100644 > --- a/fs/f2fs/file.c > +++ b/fs/f2fs/file.c > @@ -3685,18 +3685,18 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg) > static int f2fs_secure_erase(struct block_device *bdev, struct inode *inode, > pgoff_t off, block_t block, block_t len, u32 flags) > { > - struct request_queue *q = bdev_get_queue(bdev); > sector_t sector = SECTOR_FROM_BLOCK(block); > sector_t nr_sects = SECTOR_FROM_BLOCK(len); > int ret = 0; > > - if (!q) > - return -ENXIO; > - > - if (flags & F2FS_TRIM_FILE_DISCARD) > - ret = blkdev_issue_discard(bdev, sector, nr_sects, GFP_NOFS, > - blk_queue_secure_erase(q) ? > - BLKDEV_DISCARD_SECURE : 0); > + if (flags & F2FS_TRIM_FILE_DISCARD) { > + if (bdev_max_secure_erase_sectors(bdev)) > + ret = blkdev_issue_secure_erase(bdev, sector, nr_sects, > + GFP_NOFS); > + else > + ret = blkdev_issue_discard(bdev, sector, nr_sects, > + GFP_NOFS); > + } > > if (!ret && (flags & F2FS_TRIM_FILE_ZEROOUT)) { > if (IS_ENCRYPTED(inode)) > diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c > index 71f09adbcba86..e433c61e64b93 100644 > --- a/fs/f2fs/segment.c > +++ b/fs/f2fs/segment.c > @@ -1244,7 +1244,7 @@ static int __submit_discard_cmd(struct f2fs_sb_info *sbi, > err = __blkdev_issue_discard(bdev, > SECTOR_FROM_BLOCK(start), > SECTOR_FROM_BLOCK(len), > - GFP_NOFS, 0, &bio); > + GFP_NOFS, &bio); > submit: > if (err) { > spin_lock_irqsave(&dc->lock, flags); > diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c > index 19d226cd4ff4d..c0cbeeaec2d1a 100644 > --- a/fs/jbd2/journal.c > +++ b/fs/jbd2/journal.c > @@ -1825,7 +1825,7 @@ static int __jbd2_journal_erase(journal_t *journal, unsigned int flags) > err = blkdev_issue_discard(journal->j_dev, > byte_start >> SECTOR_SHIFT, > byte_count >> SECTOR_SHIFT, > - GFP_NOFS, 0); > + GFP_NOFS); > } else if (flags & JBD2_JOURNAL_FLUSH_ZEROOUT) { > err = blkdev_issue_zeroout(journal->j_dev, > byte_start >> SECTOR_SHIFT, > diff --git a/fs/nilfs2/sufile.c b/fs/nilfs2/sufile.c > index e385cca2004a7..77ff8e95421fa 100644 > --- a/fs/nilfs2/sufile.c > +++ b/fs/nilfs2/sufile.c > @@ -1100,7 +1100,7 @@ int nilfs_sufile_trim_fs(struct inode *sufile, struct fstrim_range *range) > ret = blkdev_issue_discard(nilfs->ns_bdev, > start * sects_per_block, > nblocks * sects_per_block, > - GFP_NOFS, 0); > + GFP_NOFS); > if (ret < 0) { > put_bh(su_bh); > goto out_sem; > @@ -1134,7 +1134,7 @@ int nilfs_sufile_trim_fs(struct inode *sufile, struct fstrim_range *range) > ret = blkdev_issue_discard(nilfs->ns_bdev, > start * sects_per_block, > nblocks * sects_per_block, > - GFP_NOFS, 0); > + GFP_NOFS); > if (!ret) > ndiscarded += nblocks; > } > diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c > index dd48a8f74d577..3b4a079c9617c 100644 > --- a/fs/nilfs2/the_nilfs.c > +++ b/fs/nilfs2/the_nilfs.c > @@ -672,7 +672,7 @@ int nilfs_discard_segments(struct the_nilfs *nilfs, __u64 *segnump, > ret = blkdev_issue_discard(nilfs->ns_bdev, > start * sects_per_block, > nblocks * sects_per_block, > - GFP_NOFS, 0); > + GFP_NOFS); > if (ret < 0) > return ret; > nblocks = 0; > @@ -682,7 +682,7 @@ int nilfs_discard_segments(struct the_nilfs *nilfs, __u64 *segnump, > ret = blkdev_issue_discard(nilfs->ns_bdev, > start * sects_per_block, > nblocks * sects_per_block, > - GFP_NOFS, 0); > + GFP_NOFS); > return ret; > } > > diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c > index 5f2e414cfa79b..5781b9e8e3d85 100644 > --- a/fs/ntfs3/super.c > +++ b/fs/ntfs3/super.c > @@ -1333,7 +1333,7 @@ int ntfs_discard(struct ntfs_sb_info *sbi, CLST lcn, CLST len) > return 0; > > err = blkdev_issue_discard(sb->s_bdev, start >> 9, (end - start) >> 9, > - GFP_NOFS, 0); > + GFP_NOFS); > > if (err == -EOPNOTSUPP) > sbi->flags |= NTFS_FLAGS_NODISCARD; > diff --git a/fs/xfs/xfs_discard.c b/fs/xfs/xfs_discard.c > index e2ada115c23f9..c6fe3f6ebb6b0 100644 > --- a/fs/xfs/xfs_discard.c > +++ b/fs/xfs/xfs_discard.c > @@ -114,7 +114,7 @@ xfs_trim_extents( > } > > trace_xfs_discard_extent(mp, agno, fbno, flen); > - error = blkdev_issue_discard(bdev, dbno, dlen, GFP_NOFS, 0); > + error = blkdev_issue_discard(bdev, dbno, dlen, GFP_NOFS); > if (error) > goto out_del_cursor; > *blocks_trimmed += flen; > diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c > index ba57323bfdcea..c9f55e4f09571 100644 > --- a/fs/xfs/xfs_log_cil.c > +++ b/fs/xfs/xfs_log_cil.c > @@ -605,7 +605,7 @@ xlog_discard_busy_extents( > error = __blkdev_issue_discard(mp->m_ddev_targp->bt_bdev, > XFS_AGB_TO_DADDR(mp, busyp->agno, busyp->bno), > XFS_FSB_TO_BB(mp, busyp->length), > - GFP_NOFS, 0, &bio); > + GFP_NOFS, &bio); > if (error && error != -EOPNOTSUPP) { > xfs_info(mp, > "discard failed for extent [0x%llx,%u], error %d", > diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h > index f1cf557ea20ef..c9b5925af5a3b 100644 > --- a/include/linux/blkdev.h > +++ b/include/linux/blkdev.h > @@ -248,6 +248,7 @@ struct queue_limits { > unsigned int io_opt; > unsigned int max_discard_sectors; > unsigned int max_hw_discard_sectors; > + unsigned int max_secure_erase_sectors; > unsigned int max_write_zeroes_sectors; > unsigned int max_zone_append_sectors; > unsigned int discard_granularity; > @@ -542,7 +543,6 @@ struct request_queue { > #define QUEUE_FLAG_IO_STAT 7 /* do disk/partitions IO accounting */ > #define QUEUE_FLAG_NOXMERGES 9 /* No extended merges */ > #define QUEUE_FLAG_ADD_RANDOM 10 /* Contributes to random pool */ > -#define QUEUE_FLAG_SECERASE 11 /* supports secure erase */ > #define QUEUE_FLAG_SAME_FORCE 12 /* force complete on same CPU */ > #define QUEUE_FLAG_DEAD 13 /* queue tear-down finished */ > #define QUEUE_FLAG_INIT_DONE 14 /* queue is initialized */ > @@ -583,8 +583,6 @@ bool blk_queue_flag_test_and_set(unsigned int flag, struct request_queue *q); > #define blk_queue_add_random(q) test_bit(QUEUE_FLAG_ADD_RANDOM, &(q)->queue_flags) > #define blk_queue_zone_resetall(q) \ > test_bit(QUEUE_FLAG_ZONE_RESETALL, &(q)->queue_flags) > -#define blk_queue_secure_erase(q) \ > - (test_bit(QUEUE_FLAG_SECERASE, &(q)->queue_flags)) > #define blk_queue_dax(q) test_bit(QUEUE_FLAG_DAX, &(q)->queue_flags) > #define blk_queue_pci_p2pdma(q) \ > test_bit(QUEUE_FLAG_PCI_P2PDMA, &(q)->queue_flags) > @@ -947,6 +945,8 @@ extern void blk_queue_chunk_sectors(struct request_queue *, unsigned int); > extern void blk_queue_max_segments(struct request_queue *, unsigned short); > extern void blk_queue_max_discard_segments(struct request_queue *, > unsigned short); > +void blk_queue_max_secure_erase_sectors(struct request_queue *q, > + unsigned int max_sectors); > extern void blk_queue_max_segment_size(struct request_queue *, unsigned int); > extern void blk_queue_max_discard_sectors(struct request_queue *q, > unsigned int max_discard_sectors); > @@ -1087,13 +1087,12 @@ static inline long nr_blockdev_pages(void) > > extern void blk_io_schedule(void); > > -#define BLKDEV_DISCARD_SECURE (1 << 0) /* issue a secure erase */ > - > -extern int blkdev_issue_discard(struct block_device *bdev, sector_t sector, > - sector_t nr_sects, gfp_t gfp_mask, unsigned long flags); > -extern int __blkdev_issue_discard(struct block_device *bdev, sector_t sector, > - sector_t nr_sects, gfp_t gfp_mask, int flags, > - struct bio **biop); > +int blkdev_issue_discard(struct block_device *bdev, sector_t sector, > + sector_t nr_sects, gfp_t gfp_mask); > +int __blkdev_issue_discard(struct block_device *bdev, sector_t sector, > + sector_t nr_sects, gfp_t gfp_mask, struct bio **biop); > +int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector, > + sector_t nr_sects, gfp_t gfp); > > #define BLKDEV_ZERO_NOUNMAP (1 << 0) /* do not free blocks */ > #define BLKDEV_ZERO_NOFALLBACK (1 << 1) /* don't write explicit zeroes */ > @@ -1112,7 +1111,7 @@ static inline int sb_issue_discard(struct super_block *sb, sector_t block, > SECTOR_SHIFT), > nr_blocks << (sb->s_blocksize_bits - > SECTOR_SHIFT), > - gfp_mask, flags); > + gfp_mask); > } > static inline int sb_issue_zeroout(struct super_block *sb, sector_t block, > sector_t nr_blocks, gfp_t gfp_mask) > @@ -1262,6 +1261,12 @@ static inline unsigned int bdev_discard_granularity(struct block_device *bdev) > return bdev_get_queue(bdev)->limits.discard_granularity; > } > > +static inline unsigned int > +bdev_max_secure_erase_sectors(struct block_device *bdev) > +{ > + return bdev_get_queue(bdev)->limits.max_secure_erase_sectors; > +} > + > static inline unsigned int bdev_write_zeroes_sectors(struct block_device *bdev) > { > struct request_queue *q = bdev_get_queue(bdev); > diff --git a/mm/swapfile.c b/mm/swapfile.c > index 5d9cedf9e7b84..a2b31fea0c42e 100644 > --- a/mm/swapfile.c > +++ b/mm/swapfile.c > @@ -179,7 +179,7 @@ static int discard_swap(struct swap_info_struct *si) > nr_blocks = ((sector_t)se->nr_pages - 1) << (PAGE_SHIFT - 9); > if (nr_blocks) { > err = blkdev_issue_discard(si->bdev, start_block, > - nr_blocks, GFP_KERNEL, 0); > + nr_blocks, GFP_KERNEL); > if (err) > return err; > cond_resched(); > @@ -190,7 +190,7 @@ static int discard_swap(struct swap_info_struct *si) > nr_blocks = (sector_t)se->nr_pages << (PAGE_SHIFT - 9); > > err = blkdev_issue_discard(si->bdev, start_block, > - nr_blocks, GFP_KERNEL, 0); > + nr_blocks, GFP_KERNEL); > if (err) > break; > > @@ -254,7 +254,7 @@ static void discard_swap_cluster(struct swap_info_struct *si, > start_block <<= PAGE_SHIFT - 9; > nr_blocks <<= PAGE_SHIFT - 9; > if (blkdev_issue_discard(si->bdev, start_block, > - nr_blocks, GFP_NOIO, 0)) > + nr_blocks, GFP_NOIO)) > break; > > se = next_se(se); > -- > 2.30.2 > > > > _______________________________________________ > Linux-f2fs-devel mailing list > Linux-f2fs-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
diff --git a/block/blk-core.c b/block/blk-core.c index b5c3a8049134c..ee18b6a699bdf 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -824,7 +824,7 @@ void submit_bio_noacct(struct bio *bio) goto not_supported; break; case REQ_OP_SECURE_ERASE: - if (!blk_queue_secure_erase(q)) + if (!bdev_max_secure_erase_sectors(bdev)) goto not_supported; break; case REQ_OP_ZONE_APPEND: diff --git a/block/blk-lib.c b/block/blk-lib.c index 43aa4d7fe859f..09b7e1200c0f4 100644 --- a/block/blk-lib.c +++ b/block/blk-lib.c @@ -36,26 +36,15 @@ static sector_t bio_discard_limit(struct block_device *bdev, sector_t sector) } int __blkdev_issue_discard(struct block_device *bdev, sector_t sector, - sector_t nr_sects, gfp_t gfp_mask, int flags, - struct bio **biop) + sector_t nr_sects, gfp_t gfp_mask, struct bio **biop) { - struct request_queue *q = bdev_get_queue(bdev); struct bio *bio = *biop; - unsigned int op; sector_t bs_mask; if (bdev_read_only(bdev)) return -EPERM; - - if (flags & BLKDEV_DISCARD_SECURE) { - if (!blk_queue_secure_erase(q)) - return -EOPNOTSUPP; - op = REQ_OP_SECURE_ERASE; - } else { - if (!bdev_max_discard_sectors(bdev)) - return -EOPNOTSUPP; - op = REQ_OP_DISCARD; - } + if (!bdev_max_discard_sectors(bdev)) + return -EOPNOTSUPP; /* In case the discard granularity isn't set by buggy device driver */ if (WARN_ON_ONCE(!bdev_discard_granularity(bdev))) { @@ -77,7 +66,7 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector, sector_t req_sects = min(nr_sects, bio_discard_limit(bdev, sector)); - bio = blk_next_bio(bio, bdev, 0, op, gfp_mask); + bio = blk_next_bio(bio, bdev, 0, REQ_OP_DISCARD, gfp_mask); bio->bi_iter.bi_sector = sector; bio->bi_iter.bi_size = req_sects << 9; sector += req_sects; @@ -103,21 +92,19 @@ EXPORT_SYMBOL(__blkdev_issue_discard); * @sector: start sector * @nr_sects: number of sectors to discard * @gfp_mask: memory allocation flags (for bio_alloc) - * @flags: BLKDEV_DISCARD_* flags to control behaviour * * Description: * Issue a discard request for the sectors in question. */ int blkdev_issue_discard(struct block_device *bdev, sector_t sector, - sector_t nr_sects, gfp_t gfp_mask, unsigned long flags) + sector_t nr_sects, gfp_t gfp_mask) { struct bio *bio = NULL; struct blk_plug plug; int ret; blk_start_plug(&plug); - ret = __blkdev_issue_discard(bdev, sector, nr_sects, gfp_mask, flags, - &bio); + ret = __blkdev_issue_discard(bdev, sector, nr_sects, gfp_mask, &bio); if (!ret && bio) { ret = submit_bio_wait(bio); if (ret == -EOPNOTSUPP) @@ -314,3 +301,42 @@ int blkdev_issue_zeroout(struct block_device *bdev, sector_t sector, return ret; } EXPORT_SYMBOL(blkdev_issue_zeroout); + +int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector, + sector_t nr_sects, gfp_t gfp) +{ + sector_t bs_mask = (bdev_logical_block_size(bdev) >> 9) - 1; + unsigned int max_sectors = bdev_max_secure_erase_sectors(bdev); + struct bio *bio = NULL; + struct blk_plug plug; + int ret = 0; + + if (max_sectors == 0) + return -EOPNOTSUPP; + if ((sector | nr_sects) & bs_mask) + return -EINVAL; + if (bdev_read_only(bdev)) + return -EPERM; + + blk_start_plug(&plug); + for (;;) { + unsigned int len = min_t(sector_t, nr_sects, max_sectors); + + bio = blk_next_bio(bio, bdev, 0, REQ_OP_SECURE_ERASE, gfp); + bio->bi_iter.bi_sector = sector; + bio->bi_iter.bi_size = len; + + sector += len << SECTOR_SHIFT; + nr_sects -= len << SECTOR_SHIFT; + if (!nr_sects) { + ret = submit_bio_wait(bio); + bio_put(bio); + break; + } + cond_resched(); + } + blk_finish_plug(&plug); + + return ret; +} +EXPORT_SYMBOL(blkdev_issue_secure_erase); diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c index fd111c5001256..7e4136a60e1cc 100644 --- a/block/blk-mq-debugfs.c +++ b/block/blk-mq-debugfs.c @@ -115,7 +115,6 @@ static const char *const blk_queue_flag_name[] = { QUEUE_FLAG_NAME(IO_STAT), QUEUE_FLAG_NAME(NOXMERGES), QUEUE_FLAG_NAME(ADD_RANDOM), - QUEUE_FLAG_NAME(SECERASE), QUEUE_FLAG_NAME(SAME_FORCE), QUEUE_FLAG_NAME(DEAD), QUEUE_FLAG_NAME(INIT_DONE), diff --git a/block/blk-settings.c b/block/blk-settings.c index fd83d674afd0a..6ccceb421ed2f 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -46,6 +46,7 @@ void blk_set_default_limits(struct queue_limits *lim) lim->max_zone_append_sectors = 0; lim->max_discard_sectors = 0; lim->max_hw_discard_sectors = 0; + lim->max_secure_erase_sectors = 0; lim->discard_granularity = 0; lim->discard_alignment = 0; lim->discard_misaligned = 0; @@ -176,6 +177,18 @@ void blk_queue_max_discard_sectors(struct request_queue *q, } EXPORT_SYMBOL(blk_queue_max_discard_sectors); +/** + * blk_queue_max_secure_erase_sectors - set max sectors for a secure erase + * @q: the request queue for the device + * @max_sectors: maximum number of sectors to secure_erase + **/ +void blk_queue_max_secure_erase_sectors(struct request_queue *q, + unsigned int max_sectors) +{ + q->limits.max_secure_erase_sectors = max_sectors; +} +EXPORT_SYMBOL(blk_queue_max_secure_erase_sectors); + /** * blk_queue_max_write_zeroes_sectors - set max sectors for a single * write zeroes @@ -661,7 +674,8 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b, t->discard_alignment = lcm_not_zero(t->discard_alignment, alignment) % t->discard_granularity; } - + t->max_secure_erase_sectors = min_not_zero(t->max_secure_erase_sectors, + b->max_secure_erase_sectors); t->zone_write_granularity = max(t->zone_write_granularity, b->zone_write_granularity); t->zoned = max(t->zoned, b->zoned); diff --git a/block/fops.c b/block/fops.c index 9f2ecec406b04..c0ca3254d38cf 100644 --- a/block/fops.c +++ b/block/fops.c @@ -672,7 +672,7 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start, break; case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE: error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT, - len >> SECTOR_SHIFT, GFP_KERNEL, 0); + len >> SECTOR_SHIFT, GFP_KERNEL); break; default: error = -EOPNOTSUPP; diff --git a/block/ioctl.c b/block/ioctl.c index c2cd3ba5290ce..5b5027fa78f7e 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -83,7 +83,7 @@ static int compat_blkpg_ioctl(struct block_device *bdev, #endif static int blk_ioctl_discard(struct block_device *bdev, fmode_t mode, - unsigned long arg, unsigned long flags) + unsigned long arg) { uint64_t range[2]; uint64_t start, len; @@ -114,15 +114,43 @@ static int blk_ioctl_discard(struct block_device *bdev, fmode_t mode, err = truncate_bdev_range(bdev, mode, start, start + len - 1); if (err) goto fail; - - err = blkdev_issue_discard(bdev, start >> 9, len >> 9, - GFP_KERNEL, flags); - + err = blkdev_issue_discard(bdev, start >> 9, len >> 9, GFP_KERNEL); fail: filemap_invalidate_unlock(inode->i_mapping); return err; } +static int blk_ioctl_secure_erase(struct block_device *bdev, fmode_t mode, + void __user *argp) +{ + uint64_t start, len; + uint64_t range[2]; + int err; + + if (!(mode & FMODE_WRITE)) + return -EBADF; + if (!bdev_max_secure_erase_sectors(bdev)) + return -EOPNOTSUPP; + if (copy_from_user(range, argp, sizeof(range))) + return -EFAULT; + + start = range[0]; + len = range[1]; + if ((start & 511) || (len & 511)) + return -EINVAL; + if (start + len > bdev_nr_bytes(bdev)) + return -EINVAL; + + filemap_invalidate_lock(bdev->bd_inode->i_mapping); + err = truncate_bdev_range(bdev, mode, start, start + len - 1); + if (!err) + err = blkdev_issue_secure_erase(bdev, start >> 9, len >> 9, + GFP_KERNEL); + filemap_invalidate_unlock(bdev->bd_inode->i_mapping); + return err; +} + + static int blk_ioctl_zeroout(struct block_device *bdev, fmode_t mode, unsigned long arg) { @@ -450,10 +478,9 @@ static int blkdev_common_ioctl(struct block_device *bdev, fmode_t mode, case BLKROSET: return blkdev_roset(bdev, mode, cmd, arg); case BLKDISCARD: - return blk_ioctl_discard(bdev, mode, arg, 0); + return blk_ioctl_discard(bdev, mode, arg); case BLKSECDISCARD: - return blk_ioctl_discard(bdev, mode, arg, - BLKDEV_DISCARD_SECURE); + return blk_ioctl_secure_erase(bdev, mode, argp); case BLKZEROOUT: return blk_ioctl_zeroout(bdev, mode, arg); case BLKGETDISKSEQ: diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 275c53c7b629e..2957b0b68d600 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -1547,7 +1547,8 @@ int drbd_issue_discard_or_zero_out(struct drbd_device *device, sector_t start, u start = tmp; } while (nr_sectors >= max_discard_sectors) { - err |= blkdev_issue_discard(bdev, start, max_discard_sectors, GFP_NOIO, 0); + err |= blkdev_issue_discard(bdev, start, max_discard_sectors, + GFP_NOIO); nr_sectors -= max_discard_sectors; start += max_discard_sectors; } @@ -1559,7 +1560,7 @@ int drbd_issue_discard_or_zero_out(struct drbd_device *device, sector_t start, u nr = nr_sectors; nr -= (unsigned int)nr % granularity; if (nr) { - err |= blkdev_issue_discard(bdev, start, nr, GFP_NOIO, 0); + err |= blkdev_issue_discard(bdev, start, nr, GFP_NOIO); nr_sectors -= nr; start += nr; } diff --git a/drivers/block/rnbd/rnbd-clt.c b/drivers/block/rnbd/rnbd-clt.c index efa99a3884507..d178be175ad99 100644 --- a/drivers/block/rnbd/rnbd-clt.c +++ b/drivers/block/rnbd/rnbd-clt.c @@ -1365,8 +1365,8 @@ static void setup_request_queue(struct rnbd_clt_dev *dev) dev->queue->limits.discard_granularity = dev->discard_granularity; dev->queue->limits.discard_alignment = dev->discard_alignment; if (dev->secure_discard) - blk_queue_flag_set(QUEUE_FLAG_SECERASE, dev->queue); - + blk_queue_max_secure_erase_sectors(dev->queue, + dev->max_discard_sectors); blk_queue_flag_set(QUEUE_FLAG_SAME_COMP, dev->queue); blk_queue_flag_set(QUEUE_FLAG_SAME_FORCE, dev->queue); blk_queue_max_segments(dev->queue, dev->max_segments); diff --git a/drivers/block/rnbd/rnbd-srv-dev.h b/drivers/block/rnbd/rnbd-srv-dev.h index 1f7e1c8fd4d9b..d080a0de59225 100644 --- a/drivers/block/rnbd/rnbd-srv-dev.h +++ b/drivers/block/rnbd/rnbd-srv-dev.h @@ -44,7 +44,7 @@ static inline int rnbd_dev_get_max_hw_sects(const struct rnbd_dev *dev) static inline int rnbd_dev_get_secure_discard(const struct rnbd_dev *dev) { - return blk_queue_secure_erase(bdev_get_queue(dev->bdev)); + return bdev_max_secure_erase_sectors(dev->bdev); } static inline int rnbd_dev_get_max_discard_sects(const struct rnbd_dev *dev) diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index de42458195bc1..a97f2bf5b01b9 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -970,7 +970,6 @@ static int dispatch_discard_io(struct xen_blkif_ring *ring, int status = BLKIF_RSP_OKAY; struct xen_blkif *blkif = ring->blkif; struct block_device *bdev = blkif->vbd.bdev; - unsigned long secure; struct phys_req preq; xen_blkif_get(blkif); @@ -987,13 +986,15 @@ static int dispatch_discard_io(struct xen_blkif_ring *ring, } ring->st_ds_req++; - secure = (blkif->vbd.discard_secure && - (req->u.discard.flag & BLKIF_DISCARD_SECURE)) ? - BLKDEV_DISCARD_SECURE : 0; + if (blkif->vbd.discard_secure && + (req->u.discard.flag & BLKIF_DISCARD_SECURE)) + err = blkdev_issue_secure_erase(bdev, + req->u.discard.sector_number, + req->u.discard.nr_sectors, GFP_KERNEL); + else + err = blkdev_issue_discard(bdev, req->u.discard.sector_number, + req->u.discard.nr_sectors, GFP_KERNEL); - err = blkdev_issue_discard(bdev, req->u.discard.sector_number, - req->u.discard.nr_sectors, - GFP_KERNEL, secure); fail_response: if (err == -EOPNOTSUPP) { pr_debug("discard op failed, not supported\n"); diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index 83cd08041e6b3..b21bffc9c50bc 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -484,7 +484,6 @@ static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle, { struct xen_vbd *vbd; struct block_device *bdev; - struct request_queue *q; vbd = &blkif->vbd; vbd->handle = handle; @@ -516,11 +515,9 @@ static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle, if (vbd->bdev->bd_disk->flags & GENHD_FL_REMOVABLE) vbd->type |= VDISK_REMOVABLE; - q = bdev_get_queue(bdev); if (bdev_write_cache(bdev)) vbd->flush_support = true; - - if (q && blk_queue_secure_erase(q)) + if (bdev_max_secure_erase_sectors(bdev)) vbd->discard_secure = true; vbd->feature_gnt_persistent = feature_persistent; diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 253bf835aca1f..9fb7c69f72b2d 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -949,7 +949,8 @@ static void blkif_set_queue_limits(struct blkfront_info *info) info->physical_sector_size; rq->limits.discard_alignment = info->discard_alignment; if (info->feature_secdiscard) - blk_queue_flag_set(QUEUE_FLAG_SECERASE, rq); + blk_queue_max_secure_erase_sectors(rq, + get_capacity(gd)); } /* Hard sector size and max sectors impersonate the equiv. hardware. */ @@ -1605,7 +1606,7 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id) blkif_req(req)->error = BLK_STS_NOTSUPP; info->feature_discard = 0; info->feature_secdiscard = 0; - blk_queue_flag_clear(QUEUE_FLAG_SECERASE, rq); + blk_queue_max_secure_erase_sectors(rq, 0); } break; case BLKIF_OP_FLUSH_DISKCACHE: diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c index 097577ae3c471..ce13c272c3872 100644 --- a/drivers/md/bcache/alloc.c +++ b/drivers/md/bcache/alloc.c @@ -336,7 +336,7 @@ static int bch_allocator_thread(void *arg) mutex_unlock(&ca->set->bucket_lock); blkdev_issue_discard(ca->bdev, bucket_to_sector(ca->set, bucket), - ca->sb.bucket_size, GFP_KERNEL, 0); + ca->sb.bucket_size, GFP_KERNEL); mutex_lock(&ca->set->bucket_lock); } diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index 0dff6907fd00d..e7d42f6335a2a 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -1920,9 +1920,7 @@ static int device_not_secure_erase_capable(struct dm_target *ti, struct dm_dev *dev, sector_t start, sector_t len, void *data) { - struct request_queue *q = bdev_get_queue(dev->bdev); - - return !blk_queue_secure_erase(q); + return !bdev_max_secure_erase_sectors(dev->bdev); } static bool dm_table_supports_secure_erase(struct dm_table *t) @@ -1975,8 +1973,8 @@ int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q, q->limits.discard_misaligned = 0; } - if (dm_table_supports_secure_erase(t)) - blk_queue_flag_set(QUEUE_FLAG_SECERASE, q); + if (!dm_table_supports_secure_erase(t)) + q->limits.max_secure_erase_sectors = 0; if (dm_table_supports_flush(t, (1UL << QUEUE_FLAG_WC))) { wc = true; diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index eded4bcc4545f..84c083f766736 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -398,8 +398,8 @@ static int issue_discard(struct discard_op *op, dm_block_t data_b, dm_block_t da sector_t s = block_to_sectors(tc->pool, data_b); sector_t len = block_to_sectors(tc->pool, data_e - data_b); - return __blkdev_issue_discard(tc->pool_dev->bdev, s, len, - GFP_NOWAIT, 0, &op->bio); + return __blkdev_issue_discard(tc->pool_dev->bdev, s, len, GFP_NOWAIT, + &op->bio); } static void end_discard(struct discard_op *op, int r) diff --git a/drivers/md/md.c b/drivers/md/md.c index 19636c2f2cda4..2587f872c0884 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -8584,7 +8584,7 @@ void md_submit_discard_bio(struct mddev *mddev, struct md_rdev *rdev, { struct bio *discard_bio = NULL; - if (__blkdev_issue_discard(rdev->bdev, start, size, GFP_NOIO, 0, + if (__blkdev_issue_discard(rdev->bdev, start, size, GFP_NOIO, &discard_bio) || !discard_bio) return; diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c index c3cbf9a574a39..094a4042589eb 100644 --- a/drivers/md/raid5-cache.c +++ b/drivers/md/raid5-cache.c @@ -1344,14 +1344,14 @@ static void r5l_write_super_and_discard_space(struct r5l_log *log, if (log->last_checkpoint < end) { blkdev_issue_discard(bdev, log->last_checkpoint + log->rdev->data_offset, - end - log->last_checkpoint, GFP_NOIO, 0); + end - log->last_checkpoint, GFP_NOIO); } else { blkdev_issue_discard(bdev, log->last_checkpoint + log->rdev->data_offset, log->device_size - log->last_checkpoint, - GFP_NOIO, 0); + GFP_NOIO); blkdev_issue_discard(bdev, log->rdev->data_offset, end, - GFP_NOIO, 0); + GFP_NOIO); } } diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c index cac6315010a3d..a3d4460055716 100644 --- a/drivers/mmc/core/queue.c +++ b/drivers/mmc/core/queue.c @@ -189,7 +189,7 @@ static void mmc_queue_setup_discard(struct request_queue *q, if (card->pref_erase > max_discard) q->limits.discard_granularity = SECTOR_SIZE; if (mmc_can_secure_erase_trim(card)) - blk_queue_flag_set(QUEUE_FLAG_SECERASE, q); + blk_queue_max_secure_erase_sectors(q, max_discard); } static unsigned short mmc_get_max_segments(struct mmc_host *host) diff --git a/drivers/nvme/target/io-cmd-bdev.c b/drivers/nvme/target/io-cmd-bdev.c index d886c2c59554f..27a72504d31ce 100644 --- a/drivers/nvme/target/io-cmd-bdev.c +++ b/drivers/nvme/target/io-cmd-bdev.c @@ -360,7 +360,7 @@ static u16 nvmet_bdev_discard_range(struct nvmet_req *req, ret = __blkdev_issue_discard(ns->bdev, nvmet_lba_to_sect(ns, range->slba), le32_to_cpu(range->nlb) << (ns->blksize_shift - 9), - GFP_KERNEL, 0, bio); + GFP_KERNEL, bio); if (ret && ret != -EOPNOTSUPP) { req->error_slba = le64_to_cpu(range->slba); return errno_to_nvme_status(req, ret); diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c index b6ba582b06775..e68f1cc8ef98b 100644 --- a/drivers/target/target_core_file.c +++ b/drivers/target/target_core_file.c @@ -558,7 +558,7 @@ fd_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb) ret = blkdev_issue_discard(bdev, target_to_linux_sector(dev, lba), target_to_linux_sector(dev, nolb), - GFP_KERNEL, 0); + GFP_KERNEL); if (ret < 0) { pr_warn("FILEIO: blkdev_issue_discard() failed: %d\n", ret); diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index c4a903b8a47fc..378c80313a0f2 100644 --- a/drivers/target/target_core_iblock.c +++ b/drivers/target/target_core_iblock.c @@ -434,7 +434,7 @@ iblock_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb) ret = blkdev_issue_discard(bdev, target_to_linux_sector(dev, lba), target_to_linux_sector(dev, nolb), - GFP_KERNEL, 0); + GFP_KERNEL); if (ret < 0) { pr_err("blkdev_issue_discard() failed: %d\n", ret); return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index efd8deb3ab7e8..5c1d3a564da5a 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -1239,7 +1239,7 @@ static int btrfs_issue_discard(struct block_device *bdev, u64 start, u64 len, if (size) { ret = blkdev_issue_discard(bdev, start >> 9, size >> 9, - GFP_NOFS, 0); + GFP_NOFS); if (!ret) *discarded_bytes += size; else if (ret != -EOPNOTSUPP) @@ -1256,7 +1256,7 @@ static int btrfs_issue_discard(struct block_device *bdev, u64 start, u64 len, if (bytes_left) { ret = blkdev_issue_discard(bdev, start >> 9, bytes_left >> 9, - GFP_NOFS, 0); + GFP_NOFS); if (!ret) *discarded_bytes += bytes_left; } diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 6d1820536d88d..ea653d19f9ec7 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -3629,7 +3629,7 @@ static inline int ext4_issue_discard(struct super_block *sb, return __blkdev_issue_discard(sb->s_bdev, (sector_t)discard_block << (sb->s_blocksize_bits - 9), (sector_t)count << (sb->s_blocksize_bits - 9), - GFP_NOFS, 0, biop); + GFP_NOFS, biop); } else return sb_issue_discard(sb, discard_block, count, GFP_NOFS, 0); } diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 8053d99f3920b..35b6c720c2bc1 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -3685,18 +3685,18 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg) static int f2fs_secure_erase(struct block_device *bdev, struct inode *inode, pgoff_t off, block_t block, block_t len, u32 flags) { - struct request_queue *q = bdev_get_queue(bdev); sector_t sector = SECTOR_FROM_BLOCK(block); sector_t nr_sects = SECTOR_FROM_BLOCK(len); int ret = 0; - if (!q) - return -ENXIO; - - if (flags & F2FS_TRIM_FILE_DISCARD) - ret = blkdev_issue_discard(bdev, sector, nr_sects, GFP_NOFS, - blk_queue_secure_erase(q) ? - BLKDEV_DISCARD_SECURE : 0); + if (flags & F2FS_TRIM_FILE_DISCARD) { + if (bdev_max_secure_erase_sectors(bdev)) + ret = blkdev_issue_secure_erase(bdev, sector, nr_sects, + GFP_NOFS); + else + ret = blkdev_issue_discard(bdev, sector, nr_sects, + GFP_NOFS); + } if (!ret && (flags & F2FS_TRIM_FILE_ZEROOUT)) { if (IS_ENCRYPTED(inode)) diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 71f09adbcba86..e433c61e64b93 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -1244,7 +1244,7 @@ static int __submit_discard_cmd(struct f2fs_sb_info *sbi, err = __blkdev_issue_discard(bdev, SECTOR_FROM_BLOCK(start), SECTOR_FROM_BLOCK(len), - GFP_NOFS, 0, &bio); + GFP_NOFS, &bio); submit: if (err) { spin_lock_irqsave(&dc->lock, flags); diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index 19d226cd4ff4d..c0cbeeaec2d1a 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -1825,7 +1825,7 @@ static int __jbd2_journal_erase(journal_t *journal, unsigned int flags) err = blkdev_issue_discard(journal->j_dev, byte_start >> SECTOR_SHIFT, byte_count >> SECTOR_SHIFT, - GFP_NOFS, 0); + GFP_NOFS); } else if (flags & JBD2_JOURNAL_FLUSH_ZEROOUT) { err = blkdev_issue_zeroout(journal->j_dev, byte_start >> SECTOR_SHIFT, diff --git a/fs/nilfs2/sufile.c b/fs/nilfs2/sufile.c index e385cca2004a7..77ff8e95421fa 100644 --- a/fs/nilfs2/sufile.c +++ b/fs/nilfs2/sufile.c @@ -1100,7 +1100,7 @@ int nilfs_sufile_trim_fs(struct inode *sufile, struct fstrim_range *range) ret = blkdev_issue_discard(nilfs->ns_bdev, start * sects_per_block, nblocks * sects_per_block, - GFP_NOFS, 0); + GFP_NOFS); if (ret < 0) { put_bh(su_bh); goto out_sem; @@ -1134,7 +1134,7 @@ int nilfs_sufile_trim_fs(struct inode *sufile, struct fstrim_range *range) ret = blkdev_issue_discard(nilfs->ns_bdev, start * sects_per_block, nblocks * sects_per_block, - GFP_NOFS, 0); + GFP_NOFS); if (!ret) ndiscarded += nblocks; } diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c index dd48a8f74d577..3b4a079c9617c 100644 --- a/fs/nilfs2/the_nilfs.c +++ b/fs/nilfs2/the_nilfs.c @@ -672,7 +672,7 @@ int nilfs_discard_segments(struct the_nilfs *nilfs, __u64 *segnump, ret = blkdev_issue_discard(nilfs->ns_bdev, start * sects_per_block, nblocks * sects_per_block, - GFP_NOFS, 0); + GFP_NOFS); if (ret < 0) return ret; nblocks = 0; @@ -682,7 +682,7 @@ int nilfs_discard_segments(struct the_nilfs *nilfs, __u64 *segnump, ret = blkdev_issue_discard(nilfs->ns_bdev, start * sects_per_block, nblocks * sects_per_block, - GFP_NOFS, 0); + GFP_NOFS); return ret; } diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c index 5f2e414cfa79b..5781b9e8e3d85 100644 --- a/fs/ntfs3/super.c +++ b/fs/ntfs3/super.c @@ -1333,7 +1333,7 @@ int ntfs_discard(struct ntfs_sb_info *sbi, CLST lcn, CLST len) return 0; err = blkdev_issue_discard(sb->s_bdev, start >> 9, (end - start) >> 9, - GFP_NOFS, 0); + GFP_NOFS); if (err == -EOPNOTSUPP) sbi->flags |= NTFS_FLAGS_NODISCARD; diff --git a/fs/xfs/xfs_discard.c b/fs/xfs/xfs_discard.c index e2ada115c23f9..c6fe3f6ebb6b0 100644 --- a/fs/xfs/xfs_discard.c +++ b/fs/xfs/xfs_discard.c @@ -114,7 +114,7 @@ xfs_trim_extents( } trace_xfs_discard_extent(mp, agno, fbno, flen); - error = blkdev_issue_discard(bdev, dbno, dlen, GFP_NOFS, 0); + error = blkdev_issue_discard(bdev, dbno, dlen, GFP_NOFS); if (error) goto out_del_cursor; *blocks_trimmed += flen; diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c index ba57323bfdcea..c9f55e4f09571 100644 --- a/fs/xfs/xfs_log_cil.c +++ b/fs/xfs/xfs_log_cil.c @@ -605,7 +605,7 @@ xlog_discard_busy_extents( error = __blkdev_issue_discard(mp->m_ddev_targp->bt_bdev, XFS_AGB_TO_DADDR(mp, busyp->agno, busyp->bno), XFS_FSB_TO_BB(mp, busyp->length), - GFP_NOFS, 0, &bio); + GFP_NOFS, &bio); if (error && error != -EOPNOTSUPP) { xfs_info(mp, "discard failed for extent [0x%llx,%u], error %d", diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index f1cf557ea20ef..c9b5925af5a3b 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -248,6 +248,7 @@ struct queue_limits { unsigned int io_opt; unsigned int max_discard_sectors; unsigned int max_hw_discard_sectors; + unsigned int max_secure_erase_sectors; unsigned int max_write_zeroes_sectors; unsigned int max_zone_append_sectors; unsigned int discard_granularity; @@ -542,7 +543,6 @@ struct request_queue { #define QUEUE_FLAG_IO_STAT 7 /* do disk/partitions IO accounting */ #define QUEUE_FLAG_NOXMERGES 9 /* No extended merges */ #define QUEUE_FLAG_ADD_RANDOM 10 /* Contributes to random pool */ -#define QUEUE_FLAG_SECERASE 11 /* supports secure erase */ #define QUEUE_FLAG_SAME_FORCE 12 /* force complete on same CPU */ #define QUEUE_FLAG_DEAD 13 /* queue tear-down finished */ #define QUEUE_FLAG_INIT_DONE 14 /* queue is initialized */ @@ -583,8 +583,6 @@ bool blk_queue_flag_test_and_set(unsigned int flag, struct request_queue *q); #define blk_queue_add_random(q) test_bit(QUEUE_FLAG_ADD_RANDOM, &(q)->queue_flags) #define blk_queue_zone_resetall(q) \ test_bit(QUEUE_FLAG_ZONE_RESETALL, &(q)->queue_flags) -#define blk_queue_secure_erase(q) \ - (test_bit(QUEUE_FLAG_SECERASE, &(q)->queue_flags)) #define blk_queue_dax(q) test_bit(QUEUE_FLAG_DAX, &(q)->queue_flags) #define blk_queue_pci_p2pdma(q) \ test_bit(QUEUE_FLAG_PCI_P2PDMA, &(q)->queue_flags) @@ -947,6 +945,8 @@ extern void blk_queue_chunk_sectors(struct request_queue *, unsigned int); extern void blk_queue_max_segments(struct request_queue *, unsigned short); extern void blk_queue_max_discard_segments(struct request_queue *, unsigned short); +void blk_queue_max_secure_erase_sectors(struct request_queue *q, + unsigned int max_sectors); extern void blk_queue_max_segment_size(struct request_queue *, unsigned int); extern void blk_queue_max_discard_sectors(struct request_queue *q, unsigned int max_discard_sectors); @@ -1087,13 +1087,12 @@ static inline long nr_blockdev_pages(void) extern void blk_io_schedule(void); -#define BLKDEV_DISCARD_SECURE (1 << 0) /* issue a secure erase */ - -extern int blkdev_issue_discard(struct block_device *bdev, sector_t sector, - sector_t nr_sects, gfp_t gfp_mask, unsigned long flags); -extern int __blkdev_issue_discard(struct block_device *bdev, sector_t sector, - sector_t nr_sects, gfp_t gfp_mask, int flags, - struct bio **biop); +int blkdev_issue_discard(struct block_device *bdev, sector_t sector, + sector_t nr_sects, gfp_t gfp_mask); +int __blkdev_issue_discard(struct block_device *bdev, sector_t sector, + sector_t nr_sects, gfp_t gfp_mask, struct bio **biop); +int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector, + sector_t nr_sects, gfp_t gfp); #define BLKDEV_ZERO_NOUNMAP (1 << 0) /* do not free blocks */ #define BLKDEV_ZERO_NOFALLBACK (1 << 1) /* don't write explicit zeroes */ @@ -1112,7 +1111,7 @@ static inline int sb_issue_discard(struct super_block *sb, sector_t block, SECTOR_SHIFT), nr_blocks << (sb->s_blocksize_bits - SECTOR_SHIFT), - gfp_mask, flags); + gfp_mask); } static inline int sb_issue_zeroout(struct super_block *sb, sector_t block, sector_t nr_blocks, gfp_t gfp_mask) @@ -1262,6 +1261,12 @@ static inline unsigned int bdev_discard_granularity(struct block_device *bdev) return bdev_get_queue(bdev)->limits.discard_granularity; } +static inline unsigned int +bdev_max_secure_erase_sectors(struct block_device *bdev) +{ + return bdev_get_queue(bdev)->limits.max_secure_erase_sectors; +} + static inline unsigned int bdev_write_zeroes_sectors(struct block_device *bdev) { struct request_queue *q = bdev_get_queue(bdev); diff --git a/mm/swapfile.c b/mm/swapfile.c index 5d9cedf9e7b84..a2b31fea0c42e 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -179,7 +179,7 @@ static int discard_swap(struct swap_info_struct *si) nr_blocks = ((sector_t)se->nr_pages - 1) << (PAGE_SHIFT - 9); if (nr_blocks) { err = blkdev_issue_discard(si->bdev, start_block, - nr_blocks, GFP_KERNEL, 0); + nr_blocks, GFP_KERNEL); if (err) return err; cond_resched(); @@ -190,7 +190,7 @@ static int discard_swap(struct swap_info_struct *si) nr_blocks = (sector_t)se->nr_pages << (PAGE_SHIFT - 9); err = blkdev_issue_discard(si->bdev, start_block, - nr_blocks, GFP_KERNEL, 0); + nr_blocks, GFP_KERNEL); if (err) break; @@ -254,7 +254,7 @@ static void discard_swap_cluster(struct swap_info_struct *si, start_block <<= PAGE_SHIFT - 9; nr_blocks <<= PAGE_SHIFT - 9; if (blkdev_issue_discard(si->bdev, start_block, - nr_blocks, GFP_NOIO, 0)) + nr_blocks, GFP_NOIO)) break; se = next_se(se);
Secure erase is a very different operation from discard in that it is a data integrity operation vs hint. Fully split the limits and helper infrastructure to make the separation more clear. Signed-off-by: Christoph Hellwig <hch@lst.de> --- block/blk-core.c | 2 +- block/blk-lib.c | 64 ++++++++++++++++++++--------- block/blk-mq-debugfs.c | 1 - block/blk-settings.c | 16 +++++++- block/fops.c | 2 +- block/ioctl.c | 43 +++++++++++++++---- drivers/block/drbd/drbd_receiver.c | 5 ++- drivers/block/rnbd/rnbd-clt.c | 4 +- drivers/block/rnbd/rnbd-srv-dev.h | 2 +- drivers/block/xen-blkback/blkback.c | 15 +++---- drivers/block/xen-blkback/xenbus.c | 5 +-- drivers/block/xen-blkfront.c | 5 ++- drivers/md/bcache/alloc.c | 2 +- drivers/md/dm-table.c | 8 ++-- drivers/md/dm-thin.c | 4 +- drivers/md/md.c | 2 +- drivers/md/raid5-cache.c | 6 +-- drivers/mmc/core/queue.c | 2 +- drivers/nvme/target/io-cmd-bdev.c | 2 +- drivers/target/target_core_file.c | 2 +- drivers/target/target_core_iblock.c | 2 +- fs/btrfs/extent-tree.c | 4 +- fs/ext4/mballoc.c | 2 +- fs/f2fs/file.c | 16 ++++---- fs/f2fs/segment.c | 2 +- fs/jbd2/journal.c | 2 +- fs/nilfs2/sufile.c | 4 +- fs/nilfs2/the_nilfs.c | 4 +- fs/ntfs3/super.c | 2 +- fs/xfs/xfs_discard.c | 2 +- fs/xfs/xfs_log_cil.c | 2 +- include/linux/blkdev.h | 27 +++++++----- mm/swapfile.c | 6 +-- 33 files changed, 168 insertions(+), 99 deletions(-)