Merge tag 'xfs-merge-6.14' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull XFS updates from Carlos Maiolino:
"This is mostly focused on the implementation of reflink and
reverse-mapping sup

Merge tag 'xfs-merge-6.14' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull XFS updates from Carlos Maiolino:
"This is mostly focused on the implementation of reflink and
reverse-mapping support for XFS's real-time devices.

It also includes several bugfixes.

- Implement reflink support for the realtime device

- Implement reverse-mapping support for the realtime device

- Several bug fixes and cleanups"

* tag 'xfs-merge-6.14' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (121 commits)
xfs: fix buffer lookup vs release race
xfs: check for dead buffers in xfs_buf_find_insert
xfs: add a b_iodone callback to struct xfs_buf
xfs: move b_li_list based retry handling to common code
xfs: simplify xfsaild_resubmit_item
xfs: always complete the buffer inline in xfs_buf_submit
xfs: remove the extra buffer reference in xfs_buf_submit
xfs: move invalidate_kernel_vmap_range to xfs_buf_ioend
xfs: simplify buffer I/O submission
xfs: move in-memory buftarg handling out of _xfs_buf_ioapply
xfs: move write verification out of _xfs_buf_ioapply
xfs: remove xfs_buf_delwri_submit_buffers
xfs: simplify xfs_buf_delwri_pushbuf
xfs: move xfs_buf_iowait out of (__)xfs_buf_submit
xfs: remove the incorrect comment about the b_pag field
xfs: remove the incorrect comment above xfs_buf_free_maps
xfs: fix a double completion for buffers on in-memory targets
xfs/libxfs: replace kmalloc() and memcpy() with kmemdup()
xfs: constify feature checks
xfs: refactor xfs_fs_statfs
...

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Merge tag 'realtime-rmap_2024-12-23' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux into for-next

xfs: realtime reverse-mapping support [v6.2 04/14]

This is the latest revision

Merge tag 'realtime-rmap_2024-12-23' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux into for-next

xfs: realtime reverse-mapping support [v6.2 04/14]

This is the latest revision of a patchset that adds to XFS kernel
support for reverse mapping for the realtime device. This time around
I've fixed some of the bitrot that I've noticed over the past few
months, and most notably have converted rtrmapbt to use the metadata
inode directory feature instead of burning more space in the superblock.

At the beginning of the set are patches to implement storing B+tree
leaves in an inode root, since the realtime rmapbt is rooted in an
inode, unlike the regular rmapbt which is rooted in an AG block.
Prior to this, the only btree that could be rooted in the inode fork
was the block mapping btree; if all the extent records fit in the
inode, format would be switched from 'btree' to 'extents'.

The next few patches enhance the reverse mapping routines to handle
the parts that are specific to rtgroups -- adding the new btree type,
adding a new log intent item type, and wiring up the metadata directory
tree entries.

Finally, implement GETFSMAP with the rtrmapbt and scrub functionality
for the rtrmapbt and rtbitmap and online fsck functionality.

This has been running on the djcloud for months with no problems. Enjoy!

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>

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xfs: online repair of realtime bitmaps for a realtime group

For a given rt group, regenerate the bitmap contents from the group's
realtime rmap btree.

Signed-off-by: "Darrick J. Wong" <djwong@kerne

xfs: online repair of realtime bitmaps for a realtime group

For a given rt group, regenerate the bitmap contents from the group's
realtime rmap btree.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

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Merge branch 'next' into for-linus

Prepare input updates for 6.12 merge window.

Merge tag 'v6.10' into next

Sync up with mainline to bring in device_for_each_child_node_scoped()
and other newer APIs.

Merge drm-misc-next-2024-07-04 into drm-misc-next-fixes

Let's start the drm-misc-next-fixes cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge drm/drm-next into drm-intel-next

Sync to v6.10-rc3.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Merge drm/drm-next into drm-xe-next

Needed to get tracing cleanup and add mmio tracing series.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge remote-tracking branch 'drm-misc/drm-misc-next' into HEAD

Merge drm-misc-next tree into the msm-next tree in order to be able to
use HDMI connector framework for the MSM HDMI driver.

Merge drm/drm-next into drm-misc-next

Let's start the new release cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge branch 'tip/x86/cpu'

The Lunarlake patches rely on the new VFM stuff.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>

Merge topic branches 'clkdev' and 'fixes' into for-linus

Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes

v6.10-rc1 is released, forward from v6.9

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

Merge tag 'xfs-6.10-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs updates from Chandan Babu:
"Online repair feature continues to be expanded. Also, we now support
delayed all

Merge tag 'xfs-6.10-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs updates from Chandan Babu:
"Online repair feature continues to be expanded. Also, we now support
delayed allocation for realtime devices which have an extent size that
is equal to filesystem's block size.

New code:

- Introduce Parent Pointer extended attribute for inodes

- Bring back delalloc support for realtime devices which have an
extent size that is equal to filesystem's block size

- Improve performance of log incompat feature handling

Online Repair:

- Implement atomic file content exchanges i.e. exchange ranges of
bytes between two files atomically

- Create temporary files to repair file-based metadata. This uses
atomic file content exchange facility to swap file fork mappings
between the temporary file and the metadata inode

- Allow callers of directory/xattr code to set an explicit owner
number to be written into the header fields of any new blocks that
are created. This is required to avoid walking every block of the
new structure and modify their ownership during online repair

- Repair more data structures:
- Extended attributes
- Inode unlinked state
- Directories
- Symbolic links
- AGI's unlinked inode list
- Parent pointers

- Move Orphan files to lost and found directory

- Fixes for Inode repair functionality

- Introduce a new sub-AG FITRIM implementation to reduce the duration
for which the AGF lock is held

- Updates for the design documentation

- Use Parent Pointers to assist in checking directories, parent
pointers, extended attributes, and link counts

Fixes:

- Prevent userspace from reading invalid file data due to incorrect.
updation of file size when performing a non-atomic clone operation

- Minor fixes to online repair

- Fix confusing return values from xfs_bmapi_write()

- Fix an out of bounds access due to incorrect h_size during log
recovery

- Defer upgrading the extent counters in xfs_reflink_end_cow_extent()
until we know we are going to modify the extent mapping

- Remove racy access to if_bytes check in
xfs_reflink_end_cow_extent()

- Fix sparse warnings

Cleanups:

- Hold inode locks on all files involved in a rename until the
completion of the operation. This is in preparation for the parent
pointers patchset where parent pointers are applied in a separate
chained update from the actual directory update

- Compile out v4 support when disabled

- Cleanup xfs_extent_busy_clear()

- Remove unused flags and fields from struct xfs_da_args

- Remove definitions of unused functions

- Improve extended attribute validation

- Add higher level directory operations helpers to remove duplication
of code

- Cleanup quota (un)reservation interfaces"

* tag 'xfs-6.10-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (221 commits)
xfs: simplify iext overflow checking and upgrade
xfs: remove a racy if_bytes check in xfs_reflink_end_cow_extent
xfs: upgrade the extent counters in xfs_reflink_end_cow_extent later
xfs: xfs_quota_unreserve_blkres can't fail
xfs: consolidate the xfs_quota_reserve_blkres definitions
xfs: clean up buffer allocation in xlog_do_recovery_pass
xfs: fix log recovery buffer allocation for the legacy h_size fixup
xfs: widen flags argument to the xfs_iflags_* helpers
xfs: minor cleanups of xfs_attr3_rmt_blocks
xfs: create a helper to compute the blockcount of a max sized remote value
xfs: turn XFS_ATTR3_RMT_BUF_SPACE into a function
xfs: use unsigned ints for non-negative quantities in xfs_attr_remote.c
xfs: do not allocate the entire delalloc extent in xfs_bmapi_write
xfs: fix xfs_bmap_add_extent_delay_real for partial conversions
xfs: remove the xfs_iext_peek_prev_extent call in xfs_bmapi_allocate
xfs: pass the actual offset and len to allocate to xfs_bmapi_allocate
xfs: don't open code XFS_FILBLKS_MIN in xfs_bmapi_write
xfs: lift a xfs_valid_startblock into xfs_bmapi_allocate
xfs: remove the unusued tmp_logflags variable in xfs_bmapi_allocate
xfs: fix error returns from xfs_bmapi_write
...

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Merge tag 'repair-fixes-6.10_2024-04-23' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux into xfs-6.10-mergeC

xfs: minor fixes to online repair

Here are some miscellaneous bug f

Merge tag 'repair-fixes-6.10_2024-04-23' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux into xfs-6.10-mergeC

xfs: minor fixes to online repair

Here are some miscellaneous bug fixes for the online repair code.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>

* tag 'repair-fixes-6.10_2024-04-23' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux:
xfs: invalidate dentries for a file before moving it to the orphanage
xfs: exchange-range for repairs is no longer dynamic
xfs: fix iunlock calls in xrep_adoption_trans_alloc
xfs: drop the scrub file's iolock when transaction allocation fails

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xfs: exchange-range for repairs is no longer dynamic

The atomic file exchange-range functionality is now a permanent
filesystem feature instead of a dynamic log-incompat feature. It cannot
be turne

xfs: exchange-range for repairs is no longer dynamic

The atomic file exchange-range functionality is now a permanent
filesystem feature instead of a dynamic log-incompat feature. It cannot
be turned on at runtime, so we no longer need the XCHK_FSGATES flags and
whatnot that supported it. Remove the flag and the enable function, and
move the xfs_has_exchange_range checks to the start of the repair
functions.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

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Merge tag 'repair-xattrs-6.10_2024-04-15' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux into xfs-6.10-mergeA

xfs: online repair of extended attributes

This series employs atom

Merge tag 'repair-xattrs-6.10_2024-04-15' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux into xfs-6.10-mergeA

xfs: online repair of extended attributes

This series employs atomic extent swapping to enable safe reconstruction
of extended attribute data attached to a file. Because xattrs do not
have any redundant information to draw off of, we can at best salvage
as much data as we can and build a new structure.

Rebuilding an extended attribute structure consists of these three
steps:

First, we walk the existing attributes to salvage as many of them as we
can, by adding them as new attributes attached to the repair tempfile.
We need to add a new xfile-based data structure to hold blobs of
arbitrary length to stage the xattr names and values.

Second, we write the salvaged attributes to a temporary file, and use
atomic extent swaps to exchange the entire attribute fork between the
two files.

Finally, we reap the old xattr blocks (which are now in the temporary
file) as carefully as we can.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>

* tag 'repair-xattrs-6.10_2024-04-15' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux:
xfs: create an xattr iteration function for scrub
xfs: flag empty xattr leaf blocks for optimization
xfs: scrub should set preen if attr leaf has holes
xfs: repair extended attributes
xfs: use atomic extent swapping to fix user file fork data
xfs: create a blob array data structure
xfs: enable discarding of folios backing an xfile

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Merge tag 'repair-rtsummary-6.10_2024-04-15' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux into xfs-6.10-mergeA

xfs: online repair of realtime summaries

We now have all the in

Merge tag 'repair-rtsummary-6.10_2024-04-15' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux into xfs-6.10-mergeA

xfs: online repair of realtime summaries

We now have all the infrastructure we need to repair file metadata.
We'll begin with the realtime summary file, because it is the least
complex data structure. To support this we need to add three more
pieces to the temporary file code from the previous patchset --
preallocating space in the temp file, formatting metadata into that
space and writing the blocks to disk, and swapping the fork mappings
atomically.

After that, the actual reconstruction of the realtime summary
information is pretty simple, since we can simply write the incore
copy computed by the rtsummary scrubber to the temporary file, swap the
contents, and reap the old blocks.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>

* tag 'repair-rtsummary-6.10_2024-04-15' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux:
xfs: online repair of realtime summaries
xfs: teach the tempfile to set up atomic file content exchanges
xfs: support preallocating and copying content into temporary files

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xfs: use atomic extent swapping to fix user file fork data

Build on the code that was recently added to the temporary repair file
code so that we can atomically switch the contents of any file fork,

xfs: use atomic extent swapping to fix user file fork data

Build on the code that was recently added to the temporary repair file
code so that we can atomically switch the contents of any file fork,
even if the fork is in local format. The upcoming functions to repair
xattrs, directories, and symlinks will need that capability.

Repair can lock out access to these user files by holding IOLOCK_EXCL on
these user files. Therefore, it is safe to drop the ILOCK of both the
file being repaired and the tempfile being used for staging, and cancel
the scrub transaction. We do this so that we can reuse the resource
estimation and transaction allocation functions used by a regular file
exchange operation.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

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xfs: teach the tempfile to set up atomic file content exchanges

Create some new routines to exchange the contents of a temporary file
created to stage a repair with another ondisk file. This will b

xfs: teach the tempfile to set up atomic file content exchanges

Create some new routines to exchange the contents of a temporary file
created to stage a repair with another ondisk file. This will be used
by the realtime summary repair function to commit atomically the new
rtsummary data, which will be staged in the tempfile.

The rest of XFS coordinates access to the realtime metadata inodes
solely through the ILOCK. For repair to hold its exclusive access to
the realtime summary file, it has to allocate a single large transaction
and roll it repeatedly throughout the repair while holding the ILOCK.
In turn, this means that for now there's only a partial file mapping
exchange implementation for the temporary file because we can only work
within an existing transaction.

For now, the only tempswap functions needed here are to estimate the
resource requirements of the exchange, reserve more space/quota to an
existing transaction, and kick off the actual exchange. The rest will
be added in a later patch in preparation for repairing xattrs and
directories.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

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