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7 months agoxfs: add realtime refcount btree block detection to log recovery
Darrick J. Wong [Thu, 21 Nov 2024 00:20:51 +0000 (16:20 -0800)]
xfs: add realtime refcount btree block detection to log recovery

Identify rt refcount btree blocks in the log correctly so that we can
validate them during log recovery.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: support recovering refcount intent items targetting realtime extents
Darrick J. Wong [Thu, 21 Nov 2024 00:20:51 +0000 (16:20 -0800)]
xfs: support recovering refcount intent items targetting realtime extents

Now that we have reflink on the realtime device, refcount intent items
have to support remapping extents on the realtime volume.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: add a realtime flag to the refcount update log redo items
Darrick J. Wong [Thu, 21 Nov 2024 00:20:50 +0000 (16:20 -0800)]
xfs: add a realtime flag to the refcount update log redo items

Extend the refcount update (CUI) log items with a new realtime flag that
indicates that the updates apply against the realtime refcountbt.  We'll
wire up the actual refcount code later.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: prepare refcount functions to deal with rtrefcountbt
Darrick J. Wong [Thu, 21 Nov 2024 00:20:49 +0000 (16:20 -0800)]
xfs: prepare refcount functions to deal with rtrefcountbt

Prepare the high-level refcount functions to deal with the new realtime
refcountbt and its slightly different conventions.  Provide the ability
to talk to either refcountbt or rtrefcountbt formats from the same high
level code.

Note that we leave the _recover_cow_leftovers functions for a separate
patch so that we can convert it all at once.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: add realtime refcount btree operations
Darrick J. Wong [Thu, 21 Nov 2024 00:20:48 +0000 (16:20 -0800)]
xfs: add realtime refcount btree operations

Implement the generic btree operations needed to manipulate rtrefcount
btree blocks. This is different from the regular refcountbt in that we
allocate space from the filesystem at large, and are neither constrained
to the free space nor any particular AG.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: realtime refcount btree transaction reservations
Darrick J. Wong [Thu, 21 Nov 2024 00:20:48 +0000 (16:20 -0800)]
xfs: realtime refcount btree transaction reservations

Make sure that there's enough log reservation to handle mapping
and unmapping realtime extents.  We have to reserve enough space
to handle a split in the rtrefcountbt to add the record and a second
split in the regular refcountbt to record the rtrefcountbt split.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: introduce realtime refcount btree ondisk definitions
Darrick J. Wong [Thu, 21 Nov 2024 00:20:47 +0000 (16:20 -0800)]
xfs: introduce realtime refcount btree ondisk definitions

Add the ondisk structure definitions for realtime refcount btrees. The
realtime refcount btree will be rooted from a hidden inode so it needs
to have a separate btree block magic and pointer format.

Next, add everything needed to read, write and manipulate refcount btree
blocks. This prepares the way for connecting the btree operations
implementation, though the changes to actually root the rtrefcount btree
in an inode come later.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: namespace the maximum length/refcount symbols
Darrick J. Wong [Thu, 21 Nov 2024 00:20:46 +0000 (16:20 -0800)]
xfs: namespace the maximum length/refcount symbols

Actually namespace these variables properly, so that readers can tell
that this is an XFS symbol, and that it's for the refcount
functionality.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: prepare refcount btree cursor tracepoints for realtime
Darrick J. Wong [Thu, 21 Nov 2024 00:20:45 +0000 (16:20 -0800)]
xfs: prepare refcount btree cursor tracepoints for realtime

Rework the refcount btree cursor tracepoints in preparation to handle the
realtime refcount btree cursor.  Mostly this involves renaming the field to
"refcbno" and extracting the group number from the cursor when possible.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: enable realtime rmap btree
Darrick J. Wong [Thu, 21 Nov 2024 00:20:45 +0000 (16:20 -0800)]
xfs: enable realtime rmap btree

Permit mounting filesystems with realtime rmap btrees.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: react to fsdax failure notifications on the rt device
Darrick J. Wong [Tue, 17 Dec 2024 21:22:44 +0000 (13:22 -0800)]
xfs: react to fsdax failure notifications on the rt device

Now that we have reverse mapping for the realtime device, use the
information to kill processes that have mappings to bad pmem.  This
requires refactoring the existing routines to handle rtgroups or AGs;
and splitting out the translation function to improve cohesion.
Also make a proper header file for the dax holder ops.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: don't shut down the filesystem for media failures beyond end of log
Darrick J. Wong [Tue, 17 Dec 2024 21:43:06 +0000 (13:43 -0800)]
xfs: don't shut down the filesystem for media failures beyond end of log

If the filesystem has an external log device on pmem and the pmem
reports a media error beyond the end of the log area, don't shut down
the filesystem because we don't use that space.

Cc: <stable@vger.kernel.org> # v6.0
Fixes: 6f643c57d57c56 ("xfs: implement ->notify_failure() for XFS")
Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: hook live realtime rmap operations during a repair operation
Darrick J. Wong [Thu, 21 Nov 2024 00:20:44 +0000 (16:20 -0800)]
xfs: hook live realtime rmap operations during a repair operation

Hook the regular realtime rmap code when an rtrmapbt repair operation is
running so that we can unlock the AGF buffer to scan the filesystem and
keep the in-memory btree up to date during the scan.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: create a shadow rmap btree during realtime rmap repair
Darrick J. Wong [Thu, 21 Nov 2024 00:20:43 +0000 (16:20 -0800)]
xfs: create a shadow rmap btree during realtime rmap repair

Create an in-memory btree of rmap records instead of an array.  This
enables us to do live record collection instead of freezing the fs.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: online repair of the realtime rmap btree
Darrick J. Wong [Thu, 21 Nov 2024 00:20:42 +0000 (16:20 -0800)]
xfs: online repair of the realtime rmap btree

Repair the realtime rmap btree while mounted.  Similar to the regular
rmap btree repair code, we walk the data fork mappings of every realtime
file in the filesystem to collect reverse-mapping records in an xfarray.
Then we sort the xfarray, and use the btree bulk loader to create a new
rtrmap btree ondisk.  Finally, we swap the btree roots, and reap the old
blocks in the usual way.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: support repairing metadata btrees rooted in metadir inodes
Darrick J. Wong [Thu, 21 Nov 2024 00:20:42 +0000 (16:20 -0800)]
xfs: support repairing metadata btrees rooted in metadir inodes

Adapt the repair code so that we can stage a new btree in the data fork
area of a metadir inode and reap the old blocks.  We already have nearly
all of the infrastructure; the only parts that were missing were the
metadata inode reservation handling.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: online repair of realtime bitmaps for a realtime group
Darrick J. Wong [Thu, 21 Nov 2024 00:20:41 +0000 (16:20 -0800)]
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>
7 months agoxfs: repair rmap btree inodes
Darrick J. Wong [Thu, 21 Nov 2024 00:20:40 +0000 (16:20 -0800)]
xfs: repair rmap btree inodes

Teach the inode repair code how to deal with realtime rmap btree inodes
that won't load properly.  This is most likely moot since the filesystem
generally won't mount without the rtrmapbt inodes being usable, but
we'll add this for completeness.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: repair inodes that have realtime extents
Darrick J. Wong [Thu, 21 Nov 2024 00:20:39 +0000 (16:20 -0800)]
xfs: repair inodes that have realtime extents

Plumb into the inode core repair code the ability to search for extents
on realtime devices.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: online repair of realtime file bmaps
Darrick J. Wong [Thu, 21 Nov 2024 00:20:39 +0000 (16:20 -0800)]
xfs: online repair of realtime file bmaps

Now that we have a reverse-mapping index of the realtime device, we can
rebuild the data fork forward-mappings of any realtime file.  Enhance
the existing bmbt repair code to walk the rtrmap btrees to gather this
information.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: walk the rt reverse mapping tree when rebuilding rmap
Darrick J. Wong [Thu, 21 Nov 2024 00:20:38 +0000 (16:20 -0800)]
xfs: walk the rt reverse mapping tree when rebuilding rmap

When we're rebuilding the data device rmap, if we encounter an "rmap"
format fork, we have to walk the (realtime) rmap btree inode to build
the appropriate mappings.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: scrub the metadir path of rt rmap btree files
Darrick J. Wong [Thu, 21 Nov 2024 00:20:37 +0000 (16:20 -0800)]
xfs: scrub the metadir path of rt rmap btree files

Add a new XFS_SCRUB_METAPATH subtype so that we can scrub the metadata
directory tree path to the rmap btree file for each rt group.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: scan rt rmap when we're doing an intense rmap check of bmbt mappings
Darrick J. Wong [Thu, 21 Nov 2024 00:20:36 +0000 (16:20 -0800)]
xfs: scan rt rmap when we're doing an intense rmap check of bmbt mappings

Teach the bmbt scrubber how to perform a comprehensive check that the
rmapbt does not contain /any/ mappings that are not described by bmbt
records when it's dealing with a realtime file.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: cross-reference the realtime rmapbt
Darrick J. Wong [Thu, 21 Nov 2024 00:20:36 +0000 (16:20 -0800)]
xfs: cross-reference the realtime rmapbt

Teach the data fork and realtime bitmap scrubbers to cross-reference
information with the realtime rmap btree.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: cross-reference realtime bitmap to realtime rmapbt scrubber
Darrick J. Wong [Thu, 21 Nov 2024 00:20:35 +0000 (16:20 -0800)]
xfs: cross-reference realtime bitmap to realtime rmapbt scrubber

When we're checking the realtime rmap btree entries, cross-reference
those entries with the realtime bitmap too.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: scrub the realtime rmapbt
Darrick J. Wong [Thu, 21 Nov 2024 00:20:34 +0000 (16:20 -0800)]
xfs: scrub the realtime rmapbt

Check the realtime reverse mapping btree against the rtbitmap, and
modify the rtbitmap scrub to check against the rtrmapbt.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: allow queued realtime intents to drain before scrubbing
Darrick J. Wong [Thu, 21 Nov 2024 00:20:33 +0000 (16:20 -0800)]
xfs: allow queued realtime intents to drain before scrubbing

When a writer thread executes a chain of log intent items for the
realtime volume, the ILOCKs taken during each step are for each rt
metadata file, not the entire rt volume itself.  Although scrub takes
all rt metadata ILOCKs, this isn't sufficient to guard against scrub
checking the rt volume while that writer thread is in the middle of
finishing a chain because there's no higher level locking primitive
guarding the realtime volume.

When there's a collision, cross-referencing between data structures
(e.g. rtrmapbt and rtrefcountbt) yields false corruption events; if
repair is running, this results in incorrect repairs, which is
catastrophic.

Fix this by adding to the mount structure the same drain that we use to
protect scrub against concurrent AG updates, but this time for the
realtime volume.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: report realtime rmap btree corruption errors to the health system
Darrick J. Wong [Thu, 21 Nov 2024 00:20:33 +0000 (16:20 -0800)]
xfs: report realtime rmap btree corruption errors to the health system

Whenever we encounter corrupt realtime rmap btree blocks, we should
report that to the health monitoring system for later reporting.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: check that the rtrmapbt maxlevels doesn't increase when growing fs
Darrick J. Wong [Thu, 21 Nov 2024 00:20:32 +0000 (16:20 -0800)]
xfs: check that the rtrmapbt maxlevels doesn't increase when growing fs

The size of filesystem transaction reservations depends on the maximum
height (maxlevels) of the realtime btrees.  Since we don't want a grow
operation to increase the reservation size enough that we'll fail the
minimum log size checks on the next mount, constrain growfs operations
if they would cause an increase in those maxlevels.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: wire up getfsmap to the realtime reverse mapping btree
Darrick J. Wong [Thu, 21 Nov 2024 00:20:31 +0000 (16:20 -0800)]
xfs: wire up getfsmap to the realtime reverse mapping btree

Connect the getfsmap ioctl to the realtime rmapbt.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: create routine to allocate and initialize a realtime rmap btree inode
Darrick J. Wong [Thu, 21 Nov 2024 00:20:30 +0000 (16:20 -0800)]
xfs: create routine to allocate and initialize a realtime rmap btree inode

Create a library routine to allocate and initialize an empty realtime
rmapbt inode.  We'll use this for mkfs and repair.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: wire up rmap map and unmap to the realtime rmapbt
Darrick J. Wong [Thu, 21 Nov 2024 00:20:30 +0000 (16:20 -0800)]
xfs: wire up rmap map and unmap to the realtime rmapbt

Connect the map and unmap reverse-mapping operations to the realtime
rmapbt via the deferred operation callbacks.  This enables us to
perform rmap operations against the correct btree.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: wire up a new metafile type for the realtime rmap
Darrick J. Wong [Thu, 21 Nov 2024 00:20:29 +0000 (16:20 -0800)]
xfs: wire up a new metafile type for the realtime rmap

Plumb in the pieces we need to embed the root of the realtime rmap btree
in an inode's data fork, complete with new metafile type and on-disk
interpretation functions.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: add metadata reservations for realtime rmap btrees
Darrick J. Wong [Thu, 21 Nov 2024 00:20:28 +0000 (16:20 -0800)]
xfs: add metadata reservations for realtime rmap btrees

Reserve some free blocks so that we will always have enough free blocks
in the data volume to handle expansion of the realtime rmap btree.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: add realtime reverse map inode to metadata directory
Darrick J. Wong [Thu, 21 Nov 2024 00:20:27 +0000 (16:20 -0800)]
xfs: add realtime reverse map inode to metadata directory

Add a metadir path to select the realtime rmap btree inode and load
it at mount time.  The rtrmapbt inode will have a unique extent format
code, which means that we also have to update the inode validation and
flush routines to look for it.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: support file data forks containing metadata btrees
Darrick J. Wong [Thu, 21 Nov 2024 00:20:27 +0000 (16:20 -0800)]
xfs: support file data forks containing metadata btrees

Create a new fork format type for metadata btrees.  This fork type
requires that the inode is in the metadata directory tree, and only
applies to the data fork.  The actual type of the metadata btree itself
is determined by the di_metatype field.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: pretty print metadata file types in error messages
Darrick J. Wong [Thu, 21 Nov 2024 00:20:26 +0000 (16:20 -0800)]
xfs: pretty print metadata file types in error messages

Create a helper function to turn a metadata file type code into a
printable string, and use this to complain about lockdep problems with
rtgroup inodes.  We'll use this more in the next patch.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: support recovering rmap intent items targetting realtime extents
Darrick J. Wong [Thu, 21 Nov 2024 00:20:25 +0000 (16:20 -0800)]
xfs: support recovering rmap intent items targetting realtime extents

Now that we have rmap on the realtime device and rmap intent items that
target the realtime device, log recovery has to support remapping
extents on the realtime volume.  Make this work.  Identify rtrmapbt
blocks in the log correctly so that we can validate them during log
recovery.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: add a realtime flag to the rmap update log redo items
Darrick J. Wong [Thu, 21 Nov 2024 00:20:24 +0000 (16:20 -0800)]
xfs: add a realtime flag to the rmap update log redo items

Extend the rmap update (RUI) log items to handle realtime volumes by
adding a new log intent item type.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: prepare rmap functions to deal with rtrmapbt
Darrick J. Wong [Thu, 21 Nov 2024 00:20:23 +0000 (16:20 -0800)]
xfs: prepare rmap functions to deal with rtrmapbt

Prepare the high-level rmap functions to deal with the new realtime
rmapbt and its slightly different conventions.  Provide the ability
to talk to either rmapbt or rtrmapbt formats from the same high
level code.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: add realtime rmap btree operations
Darrick J. Wong [Thu, 21 Nov 2024 00:20:23 +0000 (16:20 -0800)]
xfs: add realtime rmap btree operations

Implement the generic btree operations needed to manipulate rtrmap
btree blocks. This is different from the regular rmapbt in that we
allocate space from the filesystem at large, and are neither
constrained to the free space nor any particular AG.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: realtime rmap btree transaction reservations
Darrick J. Wong [Thu, 21 Nov 2024 00:20:22 +0000 (16:20 -0800)]
xfs: realtime rmap btree transaction reservations

Make sure that there's enough log reservation to handle mapping
and unmapping realtime extents.  We have to reserve enough space
to handle a split in the rtrmapbt to add the record and a second
split in the regular rmapbt to record the rtrmapbt split.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: introduce realtime rmap btree ondisk definitions
Darrick J. Wong [Thu, 21 Nov 2024 00:20:21 +0000 (16:20 -0800)]
xfs: introduce realtime rmap btree ondisk definitions

Add the ondisk structure definitions for realtime rmap btrees. The
realtime rmap btree will be rooted from a hidden inode so it needs to
have a separate btree block magic and pointer format.

Next, add everything needed to read, write and manipulate rmap btree
blocks. This prepares the way for connecting the btree operations
implementation, though embedding the rtrmap btree root in the inode
comes later in the series.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: simplify the xfs_rmap_{alloc,free}_extent calling conventions
Darrick J. Wong [Thu, 21 Nov 2024 00:20:21 +0000 (16:20 -0800)]
xfs: simplify the xfs_rmap_{alloc,free}_extent calling conventions

Simplify the calling conventions by allowing callers to pass a fsbno
(xfs_fsblock_t) directly into these functions, since we're just going to
set it in a struct anyway.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: prepare rmap btree cursor tracepoints for realtime
Darrick J. Wong [Thu, 21 Nov 2024 00:20:20 +0000 (16:20 -0800)]
xfs: prepare rmap btree cursor tracepoints for realtime

Rework the rmap btree cursor tracepoints in preparation to handle the
realtime rmap btree cursor.  Mostly this involves renaming the field to
"gbno" and extracting the group number from the cursor.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: add some rtgroup inode helpers
Darrick J. Wong [Fri, 22 Nov 2024 20:33:17 +0000 (12:33 -0800)]
xfs: add some rtgroup inode helpers

Create some simple helpers to reduce the amount of typing whenever we
access rtgroup inodes.  Conversion was done with this spatch and some
minor reformatting:

@@
expression rtg;
@@

- rtg->rtg_inodes[XFS_RTGI_BITMAP]
+ rtg_bitmap(rtg)

@@
expression rtg;
@@

- rtg->rtg_inodes[XFS_RTGI_SUMMARY]
+ rtg_summary(rtg)

and the CLI command:

$ spatch --sp-file /tmp/moo.cocci --dir fs/xfs/ --use-gitgrep --in-place

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: allow inode-based btrees to reserve space in the data device
Darrick J. Wong [Thu, 21 Nov 2024 00:20:19 +0000 (16:20 -0800)]
xfs: allow inode-based btrees to reserve space in the data device

Create a new space reservation scheme so that btree metadata for the
realtime volume can reserve space in the data device to avoid space
underruns.

Back when we were testing the rmap and refcount btrees for the data
device, people observed occasional shutdowns when xfs_btree_split was
called for either of those two btrees.  This happened when certain
operations (mostly writeback ioends) created new rmap or refcount
records, which would expand the size of the btree.  If there were no
free blocks available the allocation would fail and the split would shut
down the filesystem.

I considered pre-reserving blocks for btree expansion at the time of a
write() call, but there wasn't any good way to attach the reservations
to an inode and keep them there all the way to ioend processing.  Unlike
delalloc reservations which have that indlen mechanism, there's no way
to do that for mapped extents; and indlen blocks are given back during
the delalloc -> unwritten transition.

The solution was to reserve sufficient blocks for rmap/refcount btree
expansion at mount time.  This is what the XFS_AG_RESV_* flags provide;
any expansion of those two btrees can come from the pre-reserved space.

This patch brings that pre-reservation ability to inode-rooted btrees so
that the rt rmap and refcount btrees can also save room for future
expansion.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: prepare to reuse the dquot pointer space in struct xfs_inode
Darrick J. Wong [Thu, 21 Nov 2024 00:20:18 +0000 (16:20 -0800)]
xfs: prepare to reuse the dquot pointer space in struct xfs_inode

Files participating in the metadata directory tree are not accounted to
the quota subsystem.  Therefore, the i_[ugp]dquot pointers in struct
xfs_inode are never used and should always be NULL.

In the next patch we want to add a u64 count of fs blocks reserved for
metadata btree expansion, but we don't want every inode in the fs to pay
the memory price for this feature.  The intent is to union those three
pointers with the u64 counter, but for that to work we must guard
against all access to the dquot pointers for metadata files.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: support storing records in the inode core root
Darrick J. Wong [Thu, 21 Nov 2024 00:20:18 +0000 (16:20 -0800)]
xfs: support storing records in the inode core root

Add the necessary flags and code so that we can support storing leaf
records in the inode root block of a btree.  This hasn't been necessary
before, but the realtime rmapbt will need to be able to do this.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: hoist the node iroot update code out of xfs_btree_kill_iroot
Darrick J. Wong [Thu, 21 Nov 2024 00:20:17 +0000 (16:20 -0800)]
xfs: hoist the node iroot update code out of xfs_btree_kill_iroot

In preparation for allowing records in an inode btree root, hoist the
code that copies keyptrs from an existing node child into the root block
to a separate function.  Remove some unnecessary conditionals and clean
up a few function calls in the new function.  Note that this change
reorders the ->free_block call with respect to the change in bc_nlevels
to make it easier to support inode root leaf blocks in the next patch.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: hoist the node iroot update code out of xfs_btree_new_iroot
Darrick J. Wong [Thu, 21 Nov 2024 00:20:16 +0000 (16:20 -0800)]
xfs: hoist the node iroot update code out of xfs_btree_new_iroot

In preparation for allowing records in an inode btree root, hoist the
code that copies keyptrs from an existing node root into a child block
to a separate function.  Note that the new function explicitly computes
the keys of the new child block and stores that in the root block; while
the bmap btree could rely on leaving the key alone, realtime rmap needs
to set the new high key.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: tidy up xfs_bmap_broot_realloc a bit
Darrick J. Wong [Thu, 21 Nov 2024 00:20:15 +0000 (16:20 -0800)]
xfs: tidy up xfs_bmap_broot_realloc a bit

Hoist out the code that migrates broot pointers during a resize
operation to avoid code duplication and streamline the caller.  Also
use the correct bmbt pointer type for the sizeof operation.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: make xfs_iroot_realloc a bmap btree function
Darrick J. Wong [Thu, 21 Nov 2024 00:20:15 +0000 (16:20 -0800)]
xfs: make xfs_iroot_realloc a bmap btree function

Move the inode fork btree root reallocation function part of the btree
ops because it's now mostly bmbt-specific code.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: make xfs_iroot_realloc take the new numrecs instead of deltas
Darrick J. Wong [Thu, 21 Nov 2024 00:20:14 +0000 (16:20 -0800)]
xfs: make xfs_iroot_realloc take the new numrecs instead of deltas

Change the calling signature of xfs_iroot_realloc to take the ifork and
the new number of records in the btree block, not a diff against the
current number.  This will make the callsites easier to understand.

Note that this function is misnamed because it is very specific to the
single type of inode-rooted btree supported.  This will be addressed in
a subsequent patch.

Return the new btree root to reduce the amount of code clutter.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: refactor the inode fork memory allocation functions
Darrick J. Wong [Thu, 21 Nov 2024 00:20:13 +0000 (16:20 -0800)]
xfs: refactor the inode fork memory allocation functions

Hoist the code that allocates, frees, and reallocates if_broot into a
single xfs_iroot_krealloc function.  Eventually we're going to push
xfs_iroot_realloc into the btree ops structure to handle multiple
inode-rooted btrees, but first let's separate out the bits that should
stay in xfs_inode_fork.c.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: tidy up xfs_iroot_realloc
Darrick J. Wong [Thu, 21 Nov 2024 00:20:12 +0000 (16:20 -0800)]
xfs: tidy up xfs_iroot_realloc

Tidy up this function a bit before we start refactoring the memory
handling and move the function to the bmbt code.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: release the dquot buf outside of qli_lock
Darrick J. Wong [Tue, 17 Dec 2024 23:00:49 +0000 (15:00 -0800)]
xfs: release the dquot buf outside of qli_lock

Lai Yi reported a lockdep complaint about circular locking:

 Chain exists of:
   &lp->qli_lock --> &bch->bc_lock --> &l->lock

  Possible unsafe locking scenario:

        CPU0                    CPU1
        ----                    ----
   lock(&l->lock);
                                lock(&bch->bc_lock);
                                lock(&l->lock);
   lock(&lp->qli_lock);

I /think/ the problem here is that xfs_dquot_attach_buf during
quotacheck will release the buffer while it's holding the qli_lock.
Because this is a cached buffer, xfs_buf_rele_cached takes b_lock before
decrementing b_hold.  Other threads have taught lockdep that a locking
dependency chain is bp->b_lock -> bch->bc_lock -> l(ru)->lock; and that
another chain is l(ru)->lock -> lp->qli_lock.  Hence we do not want to
take b_lock while holding qli_lock.

Reported-by: syzbot+3126ab3db03db42e7a31@syzkaller.appspotmail.com
Cc: <stable@vger.kernel.org> # v6.13-rc3
Fixes: ca378189fdfa89 ("xfs: convert quotacheck to attach dquot buffers")
Tested-by: syzbot+3126ab3db03db42e7a31@syzkaller.appspotmail.com
Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoxfs: don't over-report free space or inodes in statvfs
Darrick J. Wong [Thu, 12 Dec 2024 22:37:56 +0000 (14:37 -0800)]
xfs: don't over-report free space or inodes in statvfs

Emmanual Florac reports a strange occurrence when project quota limits
are enabled, free space is lower than the remaining quota, and someone
runs statvfs:

  # mkfs.xfs -f /dev/sda
  # mount /dev/sda /mnt -o prjquota
  # xfs_quota  -x -c 'limit -p bhard=2G 55' /mnt
  # mkdir /mnt/dir
  # xfs_io -c 'chproj 55' -c 'chattr +P' -c 'stat -vvvv' /mnt/dir
  # fallocate -l 19g /mnt/a
  # df /mnt /mnt/dir
  Filesystem      Size  Used Avail Use% Mounted on
  /dev/sda         20G   20G  345M  99% /mnt
  /dev/sda        2.0G     0  2.0G   0% /mnt

I think the bug here is that xfs_fill_statvfs_from_dquot unconditionally
assigns to f_bfree without checking that the filesystem has enough free
space to fill the remaining project quota.  However, this is a
longstanding behavior of xfs so it's unclear what to do here.

Cc: <stable@vger.kernel.org> # v2.6.18
Fixes: 932f2c323196c2 ("[XFS] statvfs component of directory/project quota support, code originally by Glen.")
Reported-by: Emmanuel Florac <eflorac@intellique.com>
Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
7 months agoLinux 6.13-rc4
Linus Torvalds [Sun, 22 Dec 2024 21:22:21 +0000 (13:22 -0800)]
Linux 6.13-rc4

7 months agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Sun, 22 Dec 2024 20:16:41 +0000 (12:16 -0800)]
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM x86 fixes from Paolo Bonzini:

 - Disable AVIC on SNP-enabled systems that don't allow writes to the
   virtual APIC page, as such hosts will hit unexpected RMP #PFs in the
   host when running VMs of any flavor.

 - Fix a WARN in the hypercall completion path due to KVM trying to
   determine if a guest with protected register state is in 64-bit mode
   (KVM's ABI is to assume such guests only make hypercalls in 64-bit
   mode).

 - Allow the guest to write to supported bits in MSR_AMD64_DE_CFG to fix
   a regression with Windows guests, and because KVM's read-only
   behavior appears to be entirely made up.

 - Treat TDP MMU faults as spurious if the faulting access is allowed
   given the existing SPTE. This fixes a benign WARN (other than the
   WARN itself) due to unexpectedly replacing a writable SPTE with a
   read-only SPTE.

 - Emit a warning when KVM is configured with ignore_msrs=1 and also to
   hide the MSRs that the guest is looking for from the kernel logs.
   ignore_msrs can trick guests into assuming that certain processor
   features are present, and this in turn leads to bogus bug reports.

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: let it be known that ignore_msrs is a bad idea
  KVM: VMX: don't include '<linux/find.h>' directly
  KVM: x86/mmu: Treat TDP MMU faults as spurious if access is already allowed
  KVM: SVM: Allow guest writes to set MSR_AMD64_DE_CFG bits
  KVM: x86: Play nice with protected guests in complete_hypercall_exit()
  KVM: SVM: Disable AVIC on SNP-enabled system without HvInUseWrAllowed feature

7 months agoMerge tag 'kvm-x86-fixes-6.13-rcN' of https://github.com/kvm-x86/linux into HEAD
Paolo Bonzini [Sun, 22 Dec 2024 17:07:16 +0000 (12:07 -0500)]
Merge tag 'kvm-x86-fixes-6.13-rcN' of https://github.com/kvm-x86/linux into HEAD

KVM x86 fixes for 6.13:

 - Disable AVIC on SNP-enabled systems that don't allow writes to the virtual
   APIC page, as such hosts will hit unexpected RMP #PFs in the host when
   running VMs of any flavor.

 - Fix a WARN in the hypercall completion path due to KVM trying to determine
   if a guest with protected register state is in 64-bit mode (KVM's ABI is to
   assume such guests only make hypercalls in 64-bit mode).

 - Allow the guest to write to supported bits in MSR_AMD64_DE_CFG to fix a
   regression with Windows guests, and because KVM's read-only behavior appears
   to be entirely made up.

 - Treat TDP MMU faults as spurious if the faulting access is allowed given the
   existing SPTE.  This fixes a benign WARN (other than the WARN itself) due to
   unexpectedly replacing a writable SPTE with a read-only SPTE.

7 months agoKVM: x86: let it be known that ignore_msrs is a bad idea
Paolo Bonzini [Thu, 19 Dec 2024 12:43:20 +0000 (07:43 -0500)]
KVM: x86: let it be known that ignore_msrs is a bad idea

When running KVM with ignore_msrs=1 and report_ignored_msrs=0, the user has
no clue that that the guest is being lied to.  This may cause bug reports
such as https://gitlab.com/qemu-project/qemu/-/issues/2571, where enabling
a CPUID bit in QEMU caused Linux guests to try reading MSR_CU_DEF_ERR; and
being lied about the existence of MSR_CU_DEF_ERR caused the guest to assume
other things about the local APIC which were not true:

  Sep 14 12:02:53 kernel: mce: [Firmware Bug]: Your BIOS is not setting up LVT offset 0x2 for deferred error IRQs correctly.
  Sep 14 12:02:53 kernel: unchecked MSR access error: RDMSR from 0x852 at rIP: 0xffffffffb548ffa7 (native_read_msr+0x7/0x40)
  Sep 14 12:02:53 kernel: Call Trace:
  ...
  Sep 14 12:02:53 kernel:  native_apic_msr_read+0x20/0x30
  Sep 14 12:02:53 kernel:  setup_APIC_eilvt+0x47/0x110
  Sep 14 12:02:53 kernel:  mce_amd_feature_init+0x485/0x4e0
  ...
  Sep 14 12:02:53 kernel: [Firmware Bug]: cpu 0, try to use APIC520 (LVT offset 2) for vector 0xf4, but the register is already in use for vector 0x0 on this cpu

Without reported_ignored_msrs=0 at least the host kernel log will contain
enough information to avoid going on a wild goose chase.  But if reports
about individual MSR accesses are being silenced too, at least complain
loudly the first time a VM is started.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
7 months agoKVM: VMX: don't include '<linux/find.h>' directly
Wolfram Sang [Tue, 17 Dec 2024 07:05:40 +0000 (08:05 +0100)]
KVM: VMX: don't include '<linux/find.h>' directly

The header clearly states that it does not want to be included directly,
only via '<linux/bitmap.h>'. Replace the include accordingly.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Message-ID: <20241217070539.2433-2-wsa+renesas@sang-engineering.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
7 months agoMerge tag 'devicetree-fixes-for-6.13-1' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 22 Dec 2024 16:40:23 +0000 (08:40 -0800)]
Merge tag 'devicetree-fixes-for-6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:

 - Disable #address-cells/#size-cells warning on coreboot (Chromebooks)
   platforms

 - Add missing root #address-cells/#size-cells in default empty DT

 - Fix uninitialized variable in of_irq_parse_one()

 - Fix interrupt-map cell length check in of_irq_parse_imap_parent()

 - Fix refcount handling in __of_get_dma_parent()

 - Fix error path in of_parse_phandle_with_args_map()

 - Fix dma-ranges handling with flags cells

 - Drop explicit fw_devlink handling of 'interrupt-parent'

 - Fix "compression" typo in fixed-partitions binding

 - Unify "fsl,liodn" property type definitions

* tag 'devicetree-fixes-for-6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  of: Add coreboot firmware to excluded default cells list
  of/irq: Fix using uninitialized variable @addr_len in API of_irq_parse_one()
  of/irq: Fix interrupt-map cell length check in of_irq_parse_imap_parent()
  of: Fix refcount leakage for OF node returned by __of_get_dma_parent()
  of: Fix error path in of_parse_phandle_with_args_map()
  dt-bindings: mtd: fixed-partitions: Fix "compression" typo
  of: Add #address-cells/#size-cells in the device-tree root empty node
  dt-bindings: Unify "fsl,liodn" type definitions
  of: address: Preserve the flags portion on 1:1 dma-ranges mapping
  of/unittest: Add empty dma-ranges address translation tests
  of: property: fw_devlink: Do not use interrupt-parent directly

7 months agoMerge tag 'soc-fixes-6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Linus Torvalds [Sat, 21 Dec 2024 23:45:06 +0000 (15:45 -0800)]
Merge tag 'soc-fixes-6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC fixes from Arnd Bergmann:
 "Two more small fixes, correcting the cacheline size on Raspberry Pi 5
  and fixing a logic mistake in the microchip mpfs firmware driver"

* tag 'soc-fixes-6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  arm64: dts: broadcom: Fix L2 linesize for Raspberry Pi 5
  firmware: microchip: fix UL_IAP lock check in mpfs_auto_update_state()

7 months agoMerge tag 'mm-hotfixes-stable-2024-12-21-12-09' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Sat, 21 Dec 2024 23:31:56 +0000 (15:31 -0800)]
Merge tag 'mm-hotfixes-stable-2024-12-21-12-09' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "25 hotfixes.  16 are cc:stable.  19 are MM and 6 are non-MM.

  The usual bunch of singletons and doubletons - please see the relevant
  changelogs for details"

* tag 'mm-hotfixes-stable-2024-12-21-12-09' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (25 commits)
  mm: huge_memory: handle strsep not finding delimiter
  alloc_tag: fix set_codetag_empty() when !CONFIG_MEM_ALLOC_PROFILING_DEBUG
  alloc_tag: fix module allocation tags populated area calculation
  mm/codetag: clear tags before swap
  mm/vmstat: fix a W=1 clang compiler warning
  mm: convert partially_mapped set/clear operations to be atomic
  nilfs2: fix buffer head leaks in calls to truncate_inode_pages()
  vmalloc: fix accounting with i915
  mm/page_alloc: don't call pfn_to_page() on possibly non-existent PFN in split_large_buddy()
  fork: avoid inappropriate uprobe access to invalid mm
  nilfs2: prevent use of deleted inode
  zram: fix uninitialized ZRAM not releasing backing device
  zram: refuse to use zero sized block device as backing device
  mm: use clear_user_(high)page() for arch with special user folio handling
  mm: introduce cpu_icache_is_aliasing() across all architectures
  mm: add RCU annotation to pte_offset_map(_lock)
  mm: correctly reference merged VMA
  mm: use aligned address in copy_user_gigantic_page()
  mm: use aligned address in clear_gigantic_page()
  mm: shmem: fix ShmemHugePages at swapout
  ...

7 months agostaging: gpib: Fix allyesconfig build failures
Steven Rostedt [Tue, 17 Dec 2024 15:19:04 +0000 (10:19 -0500)]
staging: gpib: Fix allyesconfig build failures

My tests run an allyesconfig build and it failed with the following errors:

    LD [M]  samples/kfifo/dma-example.ko
  ld.lld: error: undefined symbol: nec7210_board_reset
  ld.lld: error: undefined symbol: nec7210_read
  ld.lld: error: undefined symbol: nec7210_write

It appears that some modules call the function nec7210_board_reset()
that is defined in nec7210.c.  In an allyesconfig build, these other
modules are built in.  But the file that holds nec7210_board_reset()
has:

  obj-m += nec7210.o

Where that "-m" means it only gets built as a module. With the other
modules built in, they have no access to nec7210_board_reset() and the build
fails.

This isn't the only function. After fixing that one, I hit another:

  ld.lld: error: undefined symbol: push_gpib_event
  ld.lld: error: undefined symbol: gpib_match_device_path

Where push_gpib_event() was also used outside of the file it was defined
in, and that file too only was built as a module.

Since the directory that nec7210.c is only traversed when
CONFIG_GPIB_NEC7210 is set, and the directory with gpib_common.c is only
traversed when CONFIG_GPIB_COMMON is set, use those configs as the
option to build those modules.  When it is an allyesconfig, then they
will both be built in and their functions will be available to the other
modules that are also built in.

Fixes: 3ba84ac69b53e ("staging: gpib: Add nec7210 GPIB chip driver")
Fixes: 9dde4559e9395 ("staging: gpib: Add GPIB common core driver")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 months agoMerge tag 'kbuild-fixes-v6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 21 Dec 2024 19:24:32 +0000 (11:24 -0800)]
Merge tag 'kbuild-fixes-v6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Remove stale code in usr/include/headers_check.pl

 - Fix issues in the user-mode-linux Debian package

 - Fix false-positive "export twice" errors in modpost

* tag 'kbuild-fixes-v6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  modpost: distinguish same module paths from different dump files
  kbuild: deb-pkg: Do not install maint scripts for arch 'um'
  kbuild: deb-pkg: add debarch for ARCH=um
  kbuild: Drop support for include/asm-<arch> in headers_check.pl

7 months agoMerge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Linus Torvalds [Sat, 21 Dec 2024 19:07:19 +0000 (11:07 -0800)]
Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

Pull BPF fixes from Daniel Borkmann:

 - Fix inlining of bpf_get_smp_processor_id helper for !CONFIG_SMP
   systems (Andrea Righi)

 - Fix BPF USDT selftests helper code to use asm constraint "m" for
   LoongArch (Tiezhu Yang)

 - Fix BPF selftest compilation error in get_uprobe_offset when
   PROCMAP_QUERY is not defined (Jerome Marchand)

 - Fix BPF bpf_skb_change_tail helper when used in context of BPF
   sockmap to handle negative skb header offsets (Cong Wang)

 - Several fixes to BPF sockmap code, among others, in the area of
   socket buffer accounting (Levi Zim, Zijian Zhang, Cong Wang)

* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  selftests/bpf: Test bpf_skb_change_tail() in TC ingress
  selftests/bpf: Introduce socket_helpers.h for TC tests
  selftests/bpf: Add a BPF selftest for bpf_skb_change_tail()
  bpf: Check negative offsets in __bpf_skb_min_len()
  tcp_bpf: Fix copied value in tcp_bpf_sendmsg
  skmsg: Return copied bytes in sk_msg_memcopy_from_iter
  tcp_bpf: Add sk_rmem_alloc related logic for tcp_bpf ingress redirection
  tcp_bpf: Charge receive socket buffer in bpf_tcp_ingress()
  selftests/bpf: Fix compilation error in get_uprobe_offset()
  selftests/bpf: Use asm constraint "m" for LoongArch
  bpf: Fix bpf_get_smp_processor_id() on !CONFIG_SMP

7 months agoMerge tag 'media/v6.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Sat, 21 Dec 2024 18:56:34 +0000 (10:56 -0800)]
Merge tag 'media/v6.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:

 - fix a clang build issue with mediatec vcodec

 - add missing variable initialization to dib3000mb write function

* tag 'media/v6.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  media: mediatek: vcodec: mark vdec_vp9_slice_map_counts_eob_coef noinline
  media: dvb-frontends: dib3000mb: fix uninit-value in dib3000_write_reg

7 months agoMerge tag 'pci-v6.13-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Linus Torvalds [Sat, 21 Dec 2024 18:51:04 +0000 (10:51 -0800)]
Merge tag 'pci-v6.13-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull PCI fixes from Krzysztof Wilczyński:
 "Two small patches that are important for fixing boot time hang on
  Intel JHL7540 'Titan Ridge' platforms equipped with a Thunderbolt
  controller.

  The boot time issue manifests itself when a PCI Express bandwidth
  control is unnecessarily enabled on the Thunderbolt controller
  downstream ports, which only supports a link speed of 2.5 GT/s in
  accordance with USB4 v2 specification (p. 671, sec. 11.2.1, "PCIe
  Physical Layer Logical Sub-block").

  As such, there is no need to enable bandwidth control on such
  downstream port links, which also works around the issue.

  Both patches were tested by the original reporter on the hardware on
  which the failure origin golly manifested itself. Both fixes were
  proven to resolve the reported boot hang issue, and both patches have
  been in linux-next this week with no reported problems"

* tag 'pci-v6.13-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
  PCI/bwctrl: Enable only if more than one speed is supported
  PCI: Honor Max Link Speed when determining supported speeds

7 months agoMerge tag 'pm-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Sat, 21 Dec 2024 18:47:47 +0000 (10:47 -0800)]
Merge tag 'pm-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix some amd-pstate driver issues:

   - Detect preferred core support in amd-pstate before driver
     registration to avoid initialization ordering issues (K Prateek
     Nayak)

   - Fix issues with with boost numerator handling in amd-pstate leading
     to inconsistently programmed CPPC max performance values (Mario
     Limonciello)"

* tag 'pm-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq/amd-pstate: Use boost numerator for upper bound of frequencies
  cpufreq/amd-pstate: Store the boost numerator as highest perf again
  cpufreq/amd-pstate: Detect preferred core support before driver registration

7 months agoMerge tag 'thermal-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Sat, 21 Dec 2024 18:44:44 +0000 (10:44 -0800)]
Merge tag 'thermal-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull thermal control fixes from Rafael Wysocki:
 "Fix two issues with the user thermal thresholds feature introduced in
  this development cycle (Daniel Lezcano)"

* tag 'thermal-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal/thresholds: Fix boundaries and detection routine
  thermal/thresholds: Fix uapi header macros leading to a compilation error

7 months agoMerge tag 'acpi-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Sat, 21 Dec 2024 18:42:35 +0000 (10:42 -0800)]
Merge tag 'acpi-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "Unbreak ACPI EC support on LoongArch that has been broken earlier in
  this development cycle (Huacai Chen)"

* tag 'acpi-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: EC: Enable EC support on LoongArch by default

7 months agoMerge tag '6.13-rc3-SMB3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Sat, 21 Dec 2024 17:35:18 +0000 (09:35 -0800)]
Merge tag '6.13-rc3-SMB3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:

 - fix regression in display of write stats

 - fix rmmod failure with network namespaces

 - two minor cleanups

* tag '6.13-rc3-SMB3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  smb: fix bytes written value in /proc/fs/cifs/Stats
  smb: client: fix TCP timers deadlock after rmmod
  smb: client: Deduplicate "select NETFS_SUPPORT" in Kconfig
  smb: use macros instead of constants for leasekey size and default cifsattrs value

7 months agoMerge tag 'nfs-for-6.13-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Linus Torvalds [Sat, 21 Dec 2024 17:32:24 +0000 (09:32 -0800)]
Merge tag 'nfs-for-6.13-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client fixes from Trond Myklebust:

 - NFS/pnfs: Fix a live lock between recalled layouts and layoutget

 - Fix a build warning about an undeclared symbol 'nfs_idmap_cache_timeout'

* tag 'nfs-for-6.13-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  fs/nfs: fix missing declaration of nfs_idmap_cache_timeout
  NFS/pnfs: Fix a live lock between recalled layouts and layoutget

7 months agoMerge tag 'ceph-for-6.13-rc4' of https://github.com/ceph/ceph-client
Linus Torvalds [Sat, 21 Dec 2024 17:29:46 +0000 (09:29 -0800)]
Merge tag 'ceph-for-6.13-rc4' of https://github.com/ceph/ceph-client

Pull ceph fixes from Ilya Dryomov:
 "A handful of important CephFS fixes from Max, Alex and myself: memory
  corruption due to a buffer overrun, potential infinite loop and
  several memory leaks on the error paths. All but one marked for
  stable"

* tag 'ceph-for-6.13-rc4' of https://github.com/ceph/ceph-client:
  ceph: allocate sparse_ext map only for sparse reads
  ceph: fix memory leak in ceph_direct_read_write()
  ceph: improve error handling and short/overflow-read logic in __ceph_sync_read()
  ceph: validate snapdirname option length when mounting
  ceph: give up on paths longer than PATH_MAX
  ceph: fix memory leaks in __ceph_sync_read()

7 months agomodpost: distinguish same module paths from different dump files
Masahiro Yamada [Thu, 12 Dec 2024 15:46:15 +0000 (00:46 +0900)]
modpost: distinguish same module paths from different dump files

Since commit 13b25489b6f8 ("kbuild: change working directory to external
module directory with M="), module paths are always relative to the top
of the external module tree.

The module paths recorded in Module.symvers are no longer globally unique
when they are passed via KBUILD_EXTRA_SYMBOLS for building other external
modules, which may result in false-positive "exported twice" errors.
Such errors should not occur because external modules should be able to
override in-tree modules.

To address this, record the dump file path in struct module and check it
when searching for a module.

Fixes: 13b25489b6f8 ("kbuild: change working directory to external module directory with M=")
Reported-by: Jon Hunter <jonathanh@nvidia.com>
Closes: https://lore.kernel.org/all/eb21a546-a19c-40df-b821-bbba80f19a3d@nvidia.com/
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
7 months agokbuild: deb-pkg: Do not install maint scripts for arch 'um'
Nicolas Schier [Thu, 12 Dec 2024 13:05:29 +0000 (14:05 +0100)]
kbuild: deb-pkg: Do not install maint scripts for arch 'um'

Stop installing Debian maintainer scripts when building a
user-mode-linux Debian package.

Debian maintainer scripts are used for e.g. requesting rebuilds of
initrd, rebuilding DKMS modules and updating of grub configuration.  As
all of this is not relevant for UML but also may lead to failures while
processing the kernel hooks, do no more install maintainer scripts for
the UML package.

Suggested-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Nicolas Schier <nicolas@fjasle.eu>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
7 months agokbuild: deb-pkg: add debarch for ARCH=um
Masahiro Yamada [Tue, 3 Dec 2024 11:14:45 +0000 (20:14 +0900)]
kbuild: deb-pkg: add debarch for ARCH=um

'make ARCH=um bindeb-pkg' shows the following warning.

  $ make ARCH=um bindeb-pkg
     [snip]
    GEN     debian

  ** ** **  WARNING  ** ** **

  Your architecture doesn't have its equivalent
  Debian userspace architecture defined!
  Falling back to the current host architecture (amd64).
  Please add support for um to ./scripts/package/mkdebian ...

This commit hard-codes i386/amd64 because UML is only supported for x86.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
7 months agokbuild: Drop support for include/asm-<arch> in headers_check.pl
Geert Uytterhoeven [Thu, 5 Dec 2024 13:20:43 +0000 (14:20 +0100)]
kbuild: Drop support for include/asm-<arch> in headers_check.pl

"include/asm-<arch>" was replaced by "arch/<arch>/include/asm" a long
time ago.  All assembler header files are now included using
"#include <asm/*>", so there is no longer a need to rewrite paths.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
7 months agoselftests/bpf: Test bpf_skb_change_tail() in TC ingress
Cong Wang [Fri, 13 Dec 2024 03:40:57 +0000 (19:40 -0800)]
selftests/bpf: Test bpf_skb_change_tail() in TC ingress

Similarly to the previous test, we also need a test case to cover
positive offsets as well, TC is an excellent hook for this.

Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Zijian Zhang <zijianzhang@bytedance.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241213034057.246437-5-xiyou.wangcong@gmail.com
7 months agoselftests/bpf: Introduce socket_helpers.h for TC tests
Cong Wang [Fri, 13 Dec 2024 03:40:56 +0000 (19:40 -0800)]
selftests/bpf: Introduce socket_helpers.h for TC tests

Pull socket helpers out of sockmap_helpers.h so that they can be reused
for TC tests as well. This prepares for the next patch.

Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241213034057.246437-4-xiyou.wangcong@gmail.com
7 months agoselftests/bpf: Add a BPF selftest for bpf_skb_change_tail()
Cong Wang [Fri, 13 Dec 2024 03:40:55 +0000 (19:40 -0800)]
selftests/bpf: Add a BPF selftest for bpf_skb_change_tail()

As requested by Daniel, we need to add a selftest to cover
bpf_skb_change_tail() cases in skb_verdict. Here we test trimming,
growing and error cases, and validate its expected return values and the
expected sizes of the payload.

Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241213034057.246437-3-xiyou.wangcong@gmail.com
7 months agobpf: Check negative offsets in __bpf_skb_min_len()
Cong Wang [Fri, 13 Dec 2024 03:40:54 +0000 (19:40 -0800)]
bpf: Check negative offsets in __bpf_skb_min_len()

skb_network_offset() and skb_transport_offset() can be negative when
they are called after we pull the transport header, for example, when
we use eBPF sockmap at the point of ->sk_data_ready().

__bpf_skb_min_len() uses an unsigned int to get these offsets, this
leads to a very large number which then causes bpf_skb_change_tail()
failed unexpectedly.

Fix this by using a signed int to get these offsets and ensure the
minimum is at least zero.

Fixes: 5293efe62df8 ("bpf: add bpf_skb_change_tail helper")
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241213034057.246437-2-xiyou.wangcong@gmail.com
7 months agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Fri, 20 Dec 2024 22:10:01 +0000 (14:10 -0800)]
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fix from Catalin Marinas:
 "Fix a sparse warning in the arm64 signal code dealing with the user
  shadow stack register, GCSPR_EL0"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64/signal: Silence sparse warning storing GCSPR_EL0

7 months agotcp_bpf: Fix copied value in tcp_bpf_sendmsg
Levi Zim [Sat, 30 Nov 2024 13:38:23 +0000 (21:38 +0800)]
tcp_bpf: Fix copied value in tcp_bpf_sendmsg

bpf kselftest sockhash::test_txmsg_cork_hangs in test_sockmap.c triggers a
kernel NULL pointer dereference:

BUG: kernel NULL pointer dereference, address: 0000000000000008
 ? __die_body+0x6e/0xb0
 ? __die+0x8b/0xa0
 ? page_fault_oops+0x358/0x3c0
 ? local_clock+0x19/0x30
 ? lock_release+0x11b/0x440
 ? kernelmode_fixup_or_oops+0x54/0x60
 ? __bad_area_nosemaphore+0x4f/0x210
 ? mmap_read_unlock+0x13/0x30
 ? bad_area_nosemaphore+0x16/0x20
 ? do_user_addr_fault+0x6fd/0x740
 ? prb_read_valid+0x1d/0x30
 ? exc_page_fault+0x55/0xd0
 ? asm_exc_page_fault+0x2b/0x30
 ? splice_to_socket+0x52e/0x630
 ? shmem_file_splice_read+0x2b1/0x310
 direct_splice_actor+0x47/0x70
 splice_direct_to_actor+0x133/0x300
 ? do_splice_direct+0x90/0x90
 do_splice_direct+0x64/0x90
 ? __ia32_sys_tee+0x30/0x30
 do_sendfile+0x214/0x300
 __se_sys_sendfile64+0x8e/0xb0
 __x64_sys_sendfile64+0x25/0x30
 x64_sys_call+0xb82/0x2840
 do_syscall_64+0x75/0x110
 entry_SYSCALL_64_after_hwframe+0x4b/0x53

This is caused by tcp_bpf_sendmsg() returning a larger value(12289) than
size (8192), which causes the while loop in splice_to_socket() to release
an uninitialized pipe buf.

The underlying cause is that this code assumes sk_msg_memcopy_from_iter()
will copy all bytes upon success but it actually might only copy part of
it.

This commit changes it to use the real copied bytes.

Signed-off-by: Levi Zim <rsworktech@outlook.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Björn Töpel <bjorn@kernel.org>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241130-tcp-bpf-sendmsg-v1-2-bae583d014f3@outlook.com
7 months agoskmsg: Return copied bytes in sk_msg_memcopy_from_iter
Levi Zim [Sat, 30 Nov 2024 13:38:22 +0000 (21:38 +0800)]
skmsg: Return copied bytes in sk_msg_memcopy_from_iter

Previously sk_msg_memcopy_from_iter returns the copied bytes from the
last copy_from_iter{,_nocache} call upon success.

This commit changes it to return the total number of copied bytes on
success.

Signed-off-by: Levi Zim <rsworktech@outlook.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Björn Töpel <bjorn@kernel.org>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241130-tcp-bpf-sendmsg-v1-1-bae583d014f3@outlook.com
7 months agoMerge tag 'hwmon-for-v6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 20 Dec 2024 21:48:41 +0000 (13:48 -0800)]
Merge tag 'hwmon-for-v6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - Fix reporting of negative temperature, current, and voltage values in
   the tmp513 driver

* tag 'hwmon-for-v6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (tmp513) Fix interpretation of values of Temperature Result and Limit Registers
  hwmon: (tmp513) Fix Current Register value interpretation
  hwmon: (tmp513) Fix interpretation of values of Shunt Voltage and Limit Registers

7 months agoof: Add coreboot firmware to excluded default cells list
Rob Herring (Arm) [Fri, 20 Dec 2024 21:06:47 +0000 (15:06 -0600)]
of: Add coreboot firmware to excluded default cells list

Google Juniper and other Chromebook platforms have a very old bootloader
which populates /firmware node without proper address/size-cells leading
to warnings:

  Missing '#address-cells' in /firmware
  WARNING: CPU: 0 PID: 1 at drivers/of/base.c:106 of_bus_n_addr_cells+0x90/0xf0
  Modules linked in:
  CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.12.0 #1 933ab9971ff4d5dc58cb378a96f64c7f72e3454d
  Hardware name: Google juniper sku16 board (DT)
  ...
  Missing '#size-cells' in /firmware
  WARNING: CPU: 0 PID: 1 at drivers/of/base.c:133 of_bus_n_size_cells+0x90/0xf0
  Modules linked in:
  CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Tainted: G        W          6.12.0 #1 933ab9971ff4d5dc58cb378a96f64c7f72e3454d
  Tainted: [W]=WARN
  Hardware name: Google juniper sku16 board (DT)

These platform won't receive updated bootloader/firmware, so add an
exclusion for platforms with a "coreboot" compatible node. While this is
wider than necessary, that's the easiest fix and it doesn't doesn't
matter if we miss checking other platforms using coreboot.

We may revisit this later and address with a fixup to the DT itself.

Reported-by: Sasha Levin <sashal@kernel.org>
Closes: https://lore.kernel.org/all/Z0NUdoG17EwuCigT@sashalap/
Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Chen-Yu Tsai <wenst@chromium.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
7 months agoMerge tag 'block-6.13-20241220' of git://git.kernel.dk/linux
Linus Torvalds [Fri, 20 Dec 2024 21:37:58 +0000 (13:37 -0800)]
Merge tag 'block-6.13-20241220' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:

 - Minor cleanups for bdev/nvme using the helpers introduced

 - Revert of a deadlock fix that still needs more work

 - Fix a UAF of hctx in the cpu hotplug code

* tag 'block-6.13-20241220' of git://git.kernel.dk/linux:
  block: avoid to reuse `hctx` not removed from cpuhp callback list
  block: Revert "block: Fix potential deadlock while freezing queue and acquiring sysfs_lock"
  nvme: use blk_validate_block_size() for max LBA check
  block/bdev: use helper for max block size check

7 months agoMerge tag 'io_uring-6.13-20241220' of git://git.kernel.dk/linux
Linus Torvalds [Fri, 20 Dec 2024 21:32:43 +0000 (13:32 -0800)]
Merge tag 'io_uring-6.13-20241220' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:

 - Fix for a file ref leak for registered ring fds

 - Turn the ->timeout_lock into a raw spinlock, as it nests under the
   io-wq lock which is a raw spinlock as it's called from the scheduler
   side

 - Limit ring resizing to DEFER_TASKRUN for now. We will broaden this in
   the future, but for now, ensure that it's only feasible on rings with
   a single user

 - Add sanity check for io-wq enqueuing

* tag 'io_uring-6.13-20241220' of git://git.kernel.dk/linux:
  io_uring: check if iowq is killed before queuing
  io_uring/register: limit ring resizing to DEFER_TASKRUN
  io_uring: Fix registered ring file refcount leak
  io_uring: make ctx->timeout_lock a raw spinlock

7 months agoMerge tag 'usb-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Fri, 20 Dec 2024 19:09:40 +0000 (11:09 -0800)]
Merge tag 'usb-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB / Thunderbolt fixes from Greg KH:
 "Here are some important, and small, fixes for USB and Thunderbolt
  issues that have come up in the -rc releases. And some new device ids
  for good measure. Included in here are:

   - Much reported xhci bugfix for usb-storage devices (and other
     devices as well, tripped me up on a video camera)

   - thunderbolt fixes for some small reported issues

   - new usb-serial device ids

  All of these have been in linux-next this week with no reported issues"

* tag 'usb-6.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: xhci: fix ring expansion regression in 6.13-rc1
  xhci: Turn NEC specific quirk for handling Stop Endpoint errors generic
  thunderbolt: Improve redrive mode handling
  USB: serial: option: add Telit FE910C04 rmnet compositions
  USB: serial: option: add MediaTek T7XX compositions
  USB: serial: option: add Netprisma LCUK54 modules for WWAN Ready
  USB: serial: option: add MeiG Smart SLM770A
  USB: serial: option: add TCL IK512 MBIM & ECM
  thunderbolt: Don't display nvm_version unless upgrade supported
  thunderbolt: Add support for Intel Panther Lake-M/P

7 months agoMerge tag 'spi-fix-v6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brooni...
Linus Torvalds [Fri, 20 Dec 2024 19:06:25 +0000 (11:06 -0800)]
Merge tag 'spi-fix-v6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fix from Mark Brown:
 "A fix for the remove path of the Rockchip driver, the code was just
  clearly and obviously wrong"

* tag 'spi-fix-v6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: rockchip-sfc: Fix error in remove progress

7 months agoMerge tag 'regulator-fix-v6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 20 Dec 2024 19:04:02 +0000 (11:04 -0800)]
Merge tag 'regulator-fix-v6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fix from Mark Brown:
 "The recently added regulator-uv-survival-time-ms property was renamed
  during the review of the series that added it, but unfortunately only
  in the DT binding and not in the code that parses the binding.

  This brings the code in line with the binding, if someone started
  using the original name we can add compat support for it but there's
  nothing upstream yet and it's a very niche feature so hopefully not"

* tag 'regulator-fix-v6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: rename regulator-uv-survival-time-ms according to DT binding

7 months agoMerge tag 'drm-fixes-2024-12-20' of https://gitlab.freedesktop.org/drm/kernel
Linus Torvalds [Fri, 20 Dec 2024 18:17:53 +0000 (10:17 -0800)]
Merge tag 'drm-fixes-2024-12-20' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Probably the last pull before Christmas holidays, I'll still be around
  for most of the time anyways, nothing too major in here, bunch of
  amdgpu and i915 along with a smattering of fixes across the board.

  core:
   - fix FB dependency
   - avoid div by 0 more in vrefresh
   - maintainers update

  display:
   - fix DP tunnel error path

  dma-buf:
   - fix !DEBUG_FS

  sched:
   - docs warning fix

  panel:
   - collection of misc panel fixes

  i915:
   - Reset engine utilization buffer before registration
   - Ensure busyness counter increases motonically
   - Accumulate active runtime on gt reset

  amdgpu:
   - Disable BOCO when CONFIG_HOTPLUG_PCI_PCIE is not enabled
   - scheduler job fixes
   - IP version check fixes
   - devcoredump fix
   - GPUVM update fix
   - NBIO 2.5 fix

  udmabuf:
   - fix memory leak on last export
   - sealing fixes

  ivpu:
   - fix NULL pointer
   - fix memory leak
   - fix WARN"

* tag 'drm-fixes-2024-12-20' of https://gitlab.freedesktop.org/drm/kernel: (33 commits)
  drm/sched: Fix drm_sched_fini() docu generation
  accel/ivpu: Fix WARN in ivpu_ipc_send_receive_internal()
  accel/ivpu: Fix memory leak in ivpu_mmu_reserved_context_init()
  accel/ivpu: Fix general protection fault in ivpu_bo_list()
  drm/amdgpu/nbio7.0: fix IP version check
  drm/amd: Update strapping for NBIO 2.5.0
  drm/amdgpu: Handle NULL bo->tbo.resource (again) in amdgpu_vm_bo_update
  drm/amdgpu: fix amdgpu_coredump
  drm/amdgpu/smu14.0.2: fix IP version check
  drm/amdgpu/gfx12: fix IP version check
  drm/amdgpu/mmhub4.1: fix IP version check
  drm/amdgpu/nbio7.11: fix IP version check
  drm/amdgpu/nbio7.7: fix IP version check
  drm/amdgpu: don't access invalid sched
  drm/amd: Require CONFIG_HOTPLUG_PCI_PCIE for BOCO
  drm: rework FB_CORE dependency
  drm/fbdev: Select FB_CORE dependency for fbdev on DMA and TTM
  fbdev: Fix recursive dependencies wrt BACKLIGHT_CLASS_DEVICE
  i915/guc: Accumulate active runtime on gt reset
  i915/guc: Ensure busyness counter increases motonically
  ...

7 months agoMerge tag 'trace-ringbuffer-v6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 20 Dec 2024 18:13:26 +0000 (10:13 -0800)]
Merge tag 'trace-ringbuffer-v6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull ring-buffer fixes from Steven Rostedt:

 - Fix possible overflow of mmapped ring buffer with bad offset

   If the mmap() to the ring buffer passes in a start address that is
   passed the end of the mmapped file, it is not caught and a
   slab-out-of-bounds is triggered.

   Add a check to make sure the start address is within the bounds

 - Do not use TP_printk() to boot mapped ring buffers

   As a boot mapped ring buffer's data may have pointers that map to the
   previous boot's memory map, it is unsafe to allow the TP_printk() to
   be used to read the boot mapped buffer's events. If a TP_printk()
   points to a static string from within the kernel it will not match
   the current kernel mapping if KASLR is active, and it can fault.

   Have it simply print out the raw fields.

* tag 'trace-ringbuffer-v6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  trace/ring-buffer: Do not use TP_printk() formatting for boot mapped buffers
  ring-buffer: Fix overflow in __rb_map_vma

7 months agoMerge tag 'arm-soc/for-6.13/devicetree-arm64-fixes' of https://github.com/Broadcom...
Arnd Bergmann [Fri, 20 Dec 2024 17:02:27 +0000 (18:02 +0100)]
Merge tag 'arm-soc/for-6.13/devicetree-arm64-fixes' of https://github.com/Broadcom/stblinux into arm/fixes

This pull request contains Broadcom ARM64-based SoCs Device Tree fixes
for 6.13, please pull the following:

- Willow corrects the L2 cache line size on the Raspberry Pi 5 (2712) to
  the correct value of 64 bytes

* tag 'arm-soc/for-6.13/devicetree-arm64-fixes' of https://github.com/Broadcom/stblinux:
  arm64: dts: broadcom: Fix L2 linesize for Raspberry Pi 5

Link: https://lore.kernel.org/r/20241217190547.868744-1-florian.fainelli@broadcom.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
7 months agoMerge tag 'riscv-soc-fixes-for-v6.13-rc4' of https://git.kernel.org/pub/scm/linux...
Arnd Bergmann [Fri, 20 Dec 2024 17:00:30 +0000 (18:00 +0100)]
Merge tag 'riscv-soc-fixes-for-v6.13-rc4' of https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux into arm/fixes

RISC-V soc driver fixes for v6.13-rc4

A single fix for the Auto Update driver, where a mistake in array
indexing (accessing as a u32 rather than a u8) caused the driver to read
the wrong feature disable bits.

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
* tag 'riscv-soc-fixes-for-v6.13-rc4' of https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux:
  firmware: microchip: fix UL_IAP lock check in mpfs_auto_update_state()

Link: https://lore.kernel.org/r/20241218-suffrage-unfazed-fa0113072a42@spud
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
7 months agotcp_bpf: Add sk_rmem_alloc related logic for tcp_bpf ingress redirection
Zijian Zhang [Tue, 10 Dec 2024 01:20:39 +0000 (01:20 +0000)]
tcp_bpf: Add sk_rmem_alloc related logic for tcp_bpf ingress redirection

When we do sk_psock_verdict_apply->sk_psock_skb_ingress, an sk_msg will
be created out of the skb, and the rmem accounting of the sk_msg will be
handled by the skb.

For skmsgs in __SK_REDIRECT case of tcp_bpf_send_verdict, when redirecting
to the ingress of a socket, although we sk_rmem_schedule and add sk_msg to
the ingress_msg of sk_redir, we do not update sk_rmem_alloc. As a result,
except for the global memory limit, the rmem of sk_redir is nearly
unlimited. Thus, add sk_rmem_alloc related logic to limit the recv buffer.

Since the function sk_msg_recvmsg and __sk_psock_purge_ingress_msg are
used in these two paths. We use "msg->skb" to test whether the sk_msg is
skb backed up. If it's not, we shall do the memory accounting explicitly.

Fixes: 604326b41a6f ("bpf, sockmap: convert to generic sk_msg interface")
Signed-off-by: Zijian Zhang <zijianzhang@bytedance.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20241210012039.1669389-3-zijianzhang@bytedance.com