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Re: [PATCH 26/27] block: uncouple REQ_OP_SECURE_ERASE from REQ_OP_DISCARD
- To: Christoph Hellwig <hch@xxxxxx>
- From: David Sterba <dsterba@xxxxxxx>
- Date: Thu, 7 Apr 2022 17:26:56 +0200
- Cc: Jens Axboe <axboe@xxxxxxxxx>, dm-devel@xxxxxxxxxx, linux-xfs@xxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-um@xxxxxxxxxxxxxxxxxxx, linux-block@xxxxxxxxxxxxxxx, drbd-dev@xxxxxxxxxxxxxxxx, nbd@xxxxxxxxxxxxxxxx, ceph-devel@xxxxxxxxxxxxxxx, virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-bcache@xxxxxxxxxxxxxxx, linux-raid@xxxxxxxxxxxxxxx, linux-mmc@xxxxxxxxxxxxxxx, linux-mtd@xxxxxxxxxxxxxxxxxxx, linux-nvme@xxxxxxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, linux-scsi@xxxxxxxxxxxxxxx, target-devel@xxxxxxxxxxxxxxx, linux-btrfs@xxxxxxxxxxxxxxx, linux-ext4@xxxxxxxxxxxxxxx, linux-f2fs-devel@xxxxxxxxxxxxxxxxxxxxx, cluster-devel@xxxxxxxxxx, jfs-discussion@xxxxxxxxxxxxxxxxxxxxx, linux-nilfs@xxxxxxxxxxxxxxx, ntfs3@xxxxxxxxxxxxxxx, ocfs2-devel@xxxxxxxxxxxxxx, linux-mm@xxxxxxxxx
- Delivery-date: Thu, 07 Apr 2022 15:31:06 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Mail-followup-to: dsterba@xxxxxxx, Christoph Hellwig <hch@xxxxxx>, Jens Axboe <axboe@xxxxxxxxx>, dm-devel@xxxxxxxxxx, linux-xfs@xxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-um@xxxxxxxxxxxxxxxxxxx, linux-block@xxxxxxxxxxxxxxx, drbd-dev@xxxxxxxxxxxxxxxx, nbd@xxxxxxxxxxxxxxxx, ceph-devel@xxxxxxxxxxxxxxx, virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-bcache@xxxxxxxxxxxxxxx, linux-raid@xxxxxxxxxxxxxxx, linux-mmc@xxxxxxxxxxxxxxx, linux-mtd@xxxxxxxxxxxxxxxxxxx, linux-nvme@xxxxxxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, linux-scsi@xxxxxxxxxxxxxxx, target-devel@xxxxxxxxxxxxxxx, linux-btrfs@xxxxxxxxxxxxxxx, linux-ext4@xxxxxxxxxxxxxxx, linux-f2fs-devel@xxxxxxxxxxxxxxxxxxxxx, cluster-devel@xxxxxxxxxx, jfs-discussion@xxxxxxxxxxxxxxxxxxxxx, linux-nilfs@xxxxxxxxxxxxxxx, ntfs3@xxxxxxxxxxxxxxx, ocfs2-devel@xxxxxxxxxxxxxx, linux-mm@xxxxxxxxx
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@xxxxxx>
> ---
> 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@xxxxxxxx>
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