Merge tag 'vfs-7.1-rc1.integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs integrity updates from Christian Brauner:
"This adds support to generate and verify integrity inf

Merge tag 'vfs-7.1-rc1.integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs integrity updates from Christian Brauner:
"This adds support to generate and verify integrity information (aka
T10 PI) in the file system, instead of the automatic below the covers
support that is currently used.

The implementation is based on refactoring the existing block layer PI
code to be reusable for this use case, and then adding relatively
small wrappers for the file system use case. These are then used in
iomap to implement the semantics, and wired up in XFS with a small
amount of glue code.

Compared to the baseline this does not change performance for writes,
but increases read performance up to 15% for 4k I/O, with the benefit
decreasing with larger I/O sizes as even the baseline maxes out the
device quickly on my older enterprise SSD"

* tag 'vfs-7.1-rc1.integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
xfs: support T10 protection information
iomap: support T10 protection information
iomap: support ioends for buffered reads
iomap: add a bioset pointer to iomap_read_folio_ops
ntfs3: remove copy and pasted iomap code
iomap: allow file systems to hook into buffered read bio submission
iomap: only call into ->submit_read when there is a read_ctx
iomap: pass the iomap_iter to ->submit_read
iomap: refactor iomap_bio_read_folio_range
block: pass a maxlen argument to bio_iov_iter_bounce
block: add fs_bio_integrity helpers
block: make max_integrity_io_size public
block: prepare generation / verification helpers for fs usage
block: add a bdev_has_integrity_csum helper
block: factor out a bio_integrity_setup_default helper
block: factor out a bio_integrity_action helper

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Merge branch 'for-7.1/block-integrity'

Bring in the shared branch with the block layer.

* 'for-7.1/block-integrity' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
block: pass

Merge branch 'for-7.1/block-integrity'

Bring in the shared branch with the block layer.

* 'for-7.1/block-integrity' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
block: pass a maxlen argument to bio_iov_iter_bounce
block: add fs_bio_integrity helpers
block: make max_integrity_io_size public
block: prepare generation / verification helpers for fs usage
block: add a bdev_has_integrity_csum helper
block: factor out a bio_integrity_setup_default helper
block: factor out a bio_integrity_action helper

Signed-off-by: Christian Brauner <brauner@kernel.org>

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Merge branch 'for-7.1/block-integrity' into for-7.1/block

Merge in integrity changes which are also landing in the VFS tree as
dependencies for fs related changes.

* for-7.1/block-integrity:
bloc

Merge branch 'for-7.1/block-integrity' into for-7.1/block

Merge in integrity changes which are also landing in the VFS tree as
dependencies for fs related changes.

* for-7.1/block-integrity:
block: pass a maxlen argument to bio_iov_iter_bounce
block: add fs_bio_integrity helpers
block: make max_integrity_io_size public
block: prepare generation / verification helpers for fs usage
block: add a bdev_has_integrity_csum helper
block: factor out a bio_integrity_setup_default helper
block: factor out a bio_integrity_action helper

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block: add fs_bio_integrity helpers

Add a set of helpers for file system initiated integrity information.
These include mempool backed allocations and verifying based on a passed
in sector and size

block: add fs_bio_integrity helpers

Add a set of helpers for file system initiated integrity information.
These include mempool backed allocations and verifying based on a passed
in sector and size which is often available from file system completion
routines.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Anuj Gupta <anuj20.g@samsung.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Tested-by: Anuj Gupta <anuj20.g@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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