Re: [PATCH 26/27] block: uncouple REQ_OP_SECURE_ERASE from REQ_OP_DISCARD
- To: Christoph Hellwig <hch@lst.de>
- Cc: Jens Axboe <axboe@kernel.dk>, dm-devel@redhat.com, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-um@lists.infradead.org, linux-block@vger.kernel.org, drbd-dev@lists.linbit.com, nbd@other.debian.org, ceph-devel@vger.kernel.org, virtualization@lists.linux-foundation.org, xen-devel@lists.xenproject.org, linux-bcache@vger.kernel.org, linux-raid@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, linux-nvme@lists.infradead.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com, jfs-discussion@lists.sourceforge.net, linux-nilfs@vger.kernel.org, ntfs3@lists.linux.dev, ocfs2-devel@oss.oracle.com, linux-mm@kvack.org
- Subject: Re: [PATCH 26/27] block: uncouple REQ_OP_SECURE_ERASE from REQ_OP_DISCARD
- From: David Sterba <dsterba@suse.cz>
- Date: Thu, 7 Apr 2022 17:26:56 +0200
- Message-id: <[🔎] 20220407152656.GM15609@twin.jikos.cz>
- Mail-followup-to: dsterba@suse.cz, Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>, dm-devel@redhat.com, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-um@lists.infradead.org, linux-block@vger.kernel.org, drbd-dev@lists.linbit.com, nbd@other.debian.org, ceph-devel@vger.kernel.org, virtualization@lists.linux-foundation.org, xen-devel@lists.xenproject.org, linux-bcache@vger.kernel.org, linux-raid@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, linux-nvme@lists.infradead.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com, jfs-discussion@lists.sourceforge.net, linux-nilfs@vger.kernel.org, ntfs3@lists.linux.dev, ocfs2-devel@oss.oracle.com, linux-mm@kvack.org
- Reply-to: dsterba@suse.cz
- In-reply-to: <20220406060516.409838-27-hch@lst.de>
- References: <[🔎] 20220406060516.409838-1-hch@lst.de> <20220406060516.409838-27-hch@lst.de>
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>
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