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10 months agoxfs: move repair temporary files to the metadata directory tree
Darrick J. Wong [Mon, 23 Sep 2024 20:41:03 +0000 (13:41 -0700)]
xfs: move repair temporary files to the metadata directory tree

Due to resource acquisition rules, we have to create the ondisk
temporary files used to stage a filesystem repair before we can acquire
a reference to the inode that we actually want to repair.  Therefore,
we do not know at tempfile creation time whether the tempfile will
belong to the regular directory tree or the metadata directory tree.

This distinction becomes important when the swapext code tries to figure
out the quota accounting of the two files whose mappings are being
swapped.  The swapext code assumes that accounting updates are required
for a file if dqattach attaches dquots.  Metadir files are never
accounted in quota, which means that swapext must not update the quota
accounting when swapping in a repaired directory/xattr/rtbitmap structure.

Prior to the swapext call, therefore, both files must be marked as
METADIR for dqattach so that dqattach will ignore them.  Add support for
a repair tempfile to be switched to the metadir tree and switched back
before being released so that ifree will just free the file.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: check the metadata directory inumber in superblocks
Darrick J. Wong [Mon, 23 Sep 2024 20:41:02 +0000 (13:41 -0700)]
xfs: check the metadata directory inumber in superblocks

When metadata directories are enabled, make sure that the secondary
superblocks point to the metadata directory.  This isn't strictly
required because the secondaries are only used to recover damaged
filesystems.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: scrub metadata directories
Darrick J. Wong [Mon, 23 Sep 2024 20:41:01 +0000 (13:41 -0700)]
xfs: scrub metadata directories

Teach online scrub about the metadata directory tree.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: fix di_metatype field of inodes that won't load
Darrick J. Wong [Mon, 23 Sep 2024 20:41:01 +0000 (13:41 -0700)]
xfs: fix di_metatype field of inodes that won't load

Make sure that the di_metatype field is at least set plausibly so that
later scrubbers could set the real type.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: adjust parent pointer scrubber for sb-rooted metadata files
Darrick J. Wong [Mon, 23 Sep 2024 20:41:00 +0000 (13:41 -0700)]
xfs: adjust parent pointer scrubber for sb-rooted metadata files

Starting with the metadata directory feature, we're allowed to call the
directory and parent pointer scrubbers for every metadata file,
including the ones that are children of the superblock.

For these children, checking the link count against the number of parent
pointers is a bit funny -- there's no such thing as a parent pointer for
a child of the superblock since there's no corresponding dirent.  For
purposes of validating nlink, we pretend that there is a parent pointer.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: metadata files can have xattrs if metadir is enabled
Darrick J. Wong [Mon, 23 Sep 2024 20:40:59 +0000 (13:40 -0700)]
xfs: metadata files can have xattrs if metadir is enabled

If parent pointers are enabled, then metadata files will store parent
pointers in xattrs, just like files in the user visible directory tree.
Therefore, scrub and repair need to handle attr forks for metadata files
on metadir filesystems.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: don't fail repairs on metadata files with no attr fork
Darrick J. Wong [Mon, 23 Sep 2024 20:40:58 +0000 (13:40 -0700)]
xfs: don't fail repairs on metadata files with no attr fork

Fix a minor bug where we fail repairs on metadata files that do not have
attr forks because xrep_metadata_inode_subtype doesn't filter ENOENT.

Fixes: 5a8e07e799721 ("xfs: repair the inode core and forks of a metadata inode")
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: do not count metadata directory files when doing online quotacheck
Darrick J. Wong [Mon, 23 Sep 2024 20:40:58 +0000 (13:40 -0700)]
xfs: do not count metadata directory files when doing online quotacheck

Previously, we stated that files in the metadata directory tree are not
counted in the dquot information.  Fix the online quotacheck code to
reflect this.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: refactor directory tree root predicates
Darrick J. Wong [Mon, 23 Sep 2024 20:40:57 +0000 (13:40 -0700)]
xfs: refactor directory tree root predicates

Metadata directory trees make reasoning about the parent of a file more
difficult.  Traditionally, user files are children of sb_rootino, and
metadata files are "children" of the superblock.  Now, we add a third
possibility -- some metadata files can be children of sb_metadirino, but
the classic ones (rt free space data and quotas) are left alone.

Let's add some helper functions (instead of open-coding the logic
everywhere) to make scrub logic easier to understand.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: record health problems with the metadata directory
Darrick J. Wong [Mon, 23 Sep 2024 20:40:56 +0000 (13:40 -0700)]
xfs: record health problems with the metadata directory

Make a report to the health monitoring subsystem any time we encounter
something in the metadata directory tree that looks like corruption.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: adjust xfs_bmap_add_attrfork for metadir
Darrick J. Wong [Mon, 23 Sep 2024 20:40:55 +0000 (13:40 -0700)]
xfs: adjust xfs_bmap_add_attrfork for metadir

Online repair might use the xfs_bmap_add_attrfork to repair a file in
the metadata directory tree if (say) the metadata file lacks the correct
parent pointers.  In that case, it is not correct to check that the file
is dqattached -- metadata files must be not have /any/ dquot attached at
all.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: mark quota inodes as metadata files
Darrick J. Wong [Mon, 23 Sep 2024 20:40:54 +0000 (13:40 -0700)]
xfs: mark quota inodes as metadata files

When we're creating quota files at mount time, make sure to mark them as
metadir inodes if appropriate.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: don't count metadata directory files to quota
Darrick J. Wong [Mon, 23 Sep 2024 20:40:54 +0000 (13:40 -0700)]
xfs: don't count metadata directory files to quota

Files in the metadata directory tree are internal to the filesystem.
Don't count the inodes or the blocks they use in the root dquot because
users do not need to know about their resource usage.  This will also
quiet down complaints about dquot usage not matching du output.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: allow bulkstat to return metadata directories
Darrick J. Wong [Mon, 23 Sep 2024 20:40:53 +0000 (13:40 -0700)]
xfs: allow bulkstat to return metadata directories

Allow the V5 bulkstat ioctl to return information about metadata
directory files so that xfs_scrub can find and scrub them, since they
are otherwise ordinary directories.

(Metadata files of course require per-file scrub code and hence do not
need exposure.)

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: advertise metadata directory feature
Darrick J. Wong [Mon, 23 Sep 2024 20:40:52 +0000 (13:40 -0700)]
xfs: advertise metadata directory feature

Advertise the existence of the metadata directory feature; this will be
used by scrub to decide if it needs to scan the metadir too.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: hide metadata inodes from everyone because they are special
Darrick J. Wong [Mon, 23 Sep 2024 20:40:51 +0000 (13:40 -0700)]
xfs: hide metadata inodes from everyone because they are special

Metadata inodes are private files and therefore cannot be exposed to
userspace.  This means no bulkstat, no open-by-handle, no linking them
into the directory tree, and no feeding them to LSMs.  As such, we mark
them S_PRIVATE, which stops all that.

While we're at it, put them in a separate lockdep class so that it won't
get confused by "recursive" i_rwsem locking such as what happens when we
write to a rt file and need to allocate from the rt bitmap file.  The
static function that we use to do this will be exported in the rtgroups
patchset.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: disable the agi rotor for metadata inodes
Darrick J. Wong [Mon, 23 Sep 2024 20:40:51 +0000 (13:40 -0700)]
xfs: disable the agi rotor for metadata inodes

Ideally, we'd put all the metadata inodes in one place if we could, so
that the metadata all stay reasonably close together instead of
spreading out over the disk.  Furthermore, if the log is internal we'd
probably prefer to keep the metadata near the log.  Therefore, disable
AGI rotoring for metadata inode allocations.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: read and write metadata inode directory tree
Darrick J. Wong [Mon, 23 Sep 2024 20:40:50 +0000 (13:40 -0700)]
xfs: read and write metadata inode directory tree

Plumb in the bits we need to load metadata inodes from a named entry in
a metadir directory, create (or hardlink) inodes into a metadir
directory, create metadir directories, and flag inodes as being metadata
files.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: enforce metadata inode flag
Darrick J. Wong [Mon, 23 Sep 2024 20:40:49 +0000 (13:40 -0700)]
xfs: enforce metadata inode flag

Add checks for the metadata inode flag so that we don't ever leak
metadata inodes out to userspace, and we don't ever try to read a
regular inode as metadata.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: load metadata directory root at mount time
Darrick J. Wong [Mon, 23 Sep 2024 20:40:48 +0000 (13:40 -0700)]
xfs: load metadata directory root at mount time

Load the metadata directory root inode into memory at mount time and
release it at unmount time.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: iget for metadata inodes
Darrick J. Wong [Mon, 23 Sep 2024 20:40:47 +0000 (13:40 -0700)]
xfs: iget for metadata inodes

Create a xfs_metafile_iget function for metadata inodes to ensure that
when we try to iget a metadata file, the inobt thinks a metadata inode
is in use and that the metadata type matches what we are expecting.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: undefine the sb_bad_features2 when metadir is enabled
Darrick J. Wong [Wed, 25 Sep 2024 21:48:35 +0000 (14:48 -0700)]
xfs: undefine the sb_bad_features2 when metadir is enabled

The metadir feature is a good opportunity to break from the past where
we had to do this strange dance with sb_bad_features2 due to a past bug
where the superblock was not kept aligned to a multiple of 8 bytes.

Therefore, stop this pretense when metadir is enabled.  We'll just set
the incore and ondisk fields to zero, thereby freeing up 4 bytes of
space in the superblock.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: define the on-disk format for the metadir feature
Darrick J. Wong [Mon, 23 Sep 2024 20:40:47 +0000 (13:40 -0700)]
xfs: define the on-disk format for the metadir feature

Define the on-disk layout and feature flags for the metadata inode
directory feature.  Add a xfs_sb_version_hasmetadir for benefit of
xfs_repair, which needs to know where the new end of the superblock
lies.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 months agoxfs: constify the xfs_inode predicates
Darrick J. Wong [Wed, 25 Sep 2024 22:46:59 +0000 (15:46 -0700)]
xfs: constify the xfs_inode predicates

Change the xfs_inode predicates to take a const struct xfs_inode pointer
because they do not change the inode.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: constify the xfs_sb predicates
Darrick J. Wong [Wed, 25 Sep 2024 22:43:35 +0000 (15:43 -0700)]
xfs: constify the xfs_sb predicates

Change the xfs_sb predicates to take a const struct xfs_sb pointer
because they do not change the superblock.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: store a generic group structure in the intents
Christoph Hellwig [Mon, 23 Sep 2024 20:40:46 +0000 (13:40 -0700)]
xfs: store a generic group structure in the intents

Replace the pag pointers in the extent free, bmap, rmap and refcount
intent structures with a pointer to the generic group to prepare
for adding intents for realtime groups.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: remove xfs_group_intent_hold and xfs_group_intent_rele
Christoph Hellwig [Mon, 23 Sep 2024 20:40:45 +0000 (13:40 -0700)]
xfs: remove xfs_group_intent_hold and xfs_group_intent_rele

Each of them just has a single caller, so fold them.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: add group based bno conversion helpers
Christoph Hellwig [Mon, 23 Sep 2024 20:40:44 +0000 (13:40 -0700)]
xfs: add group based bno conversion helpers

Add convenience helpers to convert block numbers based on the generic
group.  This will allow writing code that doesn't care if it is used
on AGs or the upcoming realtime groups.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: store a generic xfs_group pointer in xfs_getfsmap_info
Christoph Hellwig [Mon, 23 Sep 2024 20:40:43 +0000 (13:40 -0700)]
xfs: store a generic xfs_group pointer in xfs_getfsmap_info

Replace the pag and rtg pointers with a generic group pointer.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: add a generic group pointer to the btree cursor
Christoph Hellwig [Mon, 23 Sep 2024 20:40:43 +0000 (13:40 -0700)]
xfs: add a generic group pointer to the btree cursor

Replace the pag pointers in the type specific union with a generic
xfs_group pointer.  This prepares for adding realtime group support.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: convert busy extent tracking to the generic group structure
Christoph Hellwig [Mon, 23 Sep 2024 20:40:42 +0000 (13:40 -0700)]
xfs: convert busy extent tracking to the generic group structure

Split busy extent tracking from struct xfs_perag into its own private
structure, which can be pointed to by the generic group structure.

Note that this structure is now dynamically allocated instead of embedded
as the upcoming zone XFS code doesn't need it and will also have an
unusually high number of groups due to hardware constraints.  Dynamically
allocating the structure this is a big memory saver for this case.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: convert extent busy tracking to the generic group structure
Christoph Hellwig [Mon, 23 Sep 2024 20:40:41 +0000 (13:40 -0700)]
xfs: convert extent busy tracking to the generic group structure

Prepare for tracking busy RT extents by passing the generic group
structure to the xfs_extent_busy_class tracepoints.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: return the busy generation from xfs_extent_busy_list_empty
Christoph Hellwig [Mon, 23 Sep 2024 20:40:40 +0000 (13:40 -0700)]
xfs: return the busy generation from xfs_extent_busy_list_empty

This avoid having to poke into the internals of the busy tracking in
ẋrep_setup_ag_allocbt.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: move the online repair rmap hooks to the generic group structure
Christoph Hellwig [Mon, 23 Sep 2024 20:40:39 +0000 (13:40 -0700)]
xfs: move the online repair rmap hooks to the generic group structure

Prepare for the upcoming realtime groups feature by moving the online
repair rmap hooks to based to the generic xfs_group structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: move draining of deferred operations to the generic group structure
Christoph Hellwig [Mon, 23 Sep 2024 20:40:39 +0000 (13:40 -0700)]
xfs: move draining of deferred operations to the generic group structure

Prepare supporting the upcoming realtime groups feature by moving the
deferred operation draining to the generic xfs_group structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: mark xfs_perag_intent_{hold,rele} static
Christoph Hellwig [Mon, 23 Sep 2024 20:40:38 +0000 (13:40 -0700)]
xfs: mark xfs_perag_intent_{hold,rele} static

These two functions are only used inside of xfs_drain.c, so mark them
static.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: move metadata health tracking to the generic group structure
Christoph Hellwig [Mon, 23 Sep 2024 20:40:37 +0000 (13:40 -0700)]
xfs: move metadata health tracking to the generic group structure

Prepare for also tracking the health status of the upcoming realtime
groups by moving the health tracking code to the generic xfs_group
structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: switch perag iteration from the for_each macros to a while based iterator
Christoph Hellwig [Mon, 23 Sep 2024 20:40:36 +0000 (13:40 -0700)]
xfs: switch perag iteration from the for_each macros to a while based iterator

The current for_each_perag* macros are a bit annoying in that they
require the caller to both provide an object and an index iterator, and
also somewhat obsfucate the underlying control flow mechanism.

Switch to open coded while loops using new xfs_perag_next{,_from,_range}
helpers that return the next pag structure to iterate on based on the
previous one or NULL for the loop start.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: add a xfs_group_next_range helper
Christoph Hellwig [Mon, 23 Sep 2024 20:40:35 +0000 (13:40 -0700)]
xfs: add a xfs_group_next_range helper

Add a helper to iterate over iterate over all groups, which can be used
as a simple while loop:

struct xfs_group *xg = NULL;

while ((xg = xfs_group_next_range(mp, xg, 0, MAX_GROUP))) {
...
}

This will be wrapped by the realtime group code first, and eventually
replace the for_each_rtgroup_from and for_each_rtgroup_range helpers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: factor out a generic xfs_group structure
Christoph Hellwig [Mon, 23 Sep 2024 20:40:34 +0000 (13:40 -0700)]
xfs: factor out a generic xfs_group structure

Split the lookup and refcount handling of struct xfs_perag into an
embedded xfs_group structure that can be reused for the upcoming
realtime groups.

It will be extended with more features later.

Note that he xg_type field will only need a single bit even with
realtime group support.  For now it fills a hole, but it might be
worth to fold it into another field if we can use this space better.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: factor out a xfs_iwalk_args helper
Christoph Hellwig [Mon, 23 Sep 2024 20:40:33 +0000 (13:40 -0700)]
xfs: factor out a xfs_iwalk_args helper

Add a helper to share more code between xfs_iwalk and xfs_inobt_walk,
and at the same time do away with the extra flags indirect so that
everyone use the same names for the same flags when using the common
iwalk code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: insert the pag structures into the xarray later
Christoph Hellwig [Mon, 23 Sep 2024 20:40:32 +0000 (13:40 -0700)]
xfs: insert the pag structures into the xarray later

Cleaning up is much easier if a structure can't be looked up yet, so only
insert the pag once it is fully set up.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: split xfs_initialize_perag
Christoph Hellwig [Mon, 23 Sep 2024 20:40:32 +0000 (13:40 -0700)]
xfs: split xfs_initialize_perag

Factor out a xfs_perag_alloc helper that allocates a single perag
structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: convert remaining trace points to pass pag structures
Christoph Hellwig [Mon, 23 Sep 2024 20:40:31 +0000 (13:40 -0700)]
xfs: convert remaining trace points to pass pag structures

Convert all tracepoints that take [mp,agno] tuples to take a pag argument
instead so that decoding only happens when tracepoints are enabled and to
clean up the callers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: pass the pag to the xrep_newbt_extent_class tracepoints
Christoph Hellwig [Mon, 23 Sep 2024 20:40:30 +0000 (13:40 -0700)]
xfs: pass the pag to the xrep_newbt_extent_class tracepoints

This requires moving a few of the callsites a little bit to ensure that
we already have the reference, but allows for the decoding to only happen
when tracing is actually enabled, and cleans up the callsites a bit.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: pass the pag to the trace_xrep_calc_ag_resblks{,_btsize} trace points
Christoph Hellwig [Mon, 23 Sep 2024 20:40:29 +0000 (13:40 -0700)]
xfs: pass the pag to the trace_xrep_calc_ag_resblks{,_btsize} trace points

This requires holding the pag refcount a little longer, but allows for the
decoding to only happen when tracing is actually enabled, and cleans up the
callsites a bit.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: pass objects to the xrep_ibt_walk_rmap tracepoint
Christoph Hellwig [Mon, 23 Sep 2024 20:40:29 +0000 (13:40 -0700)]
xfs: pass objects to the xrep_ibt_walk_rmap tracepoint

Pass the perag structure and the irec so that the decoding is only done
when tracing is actually enabled and the call sites look a lot neater,
and remove the pointless class indirection.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: pass the iunlink item to the xfs_iunlink_update_dinode trace point
Christoph Hellwig [Mon, 23 Sep 2024 20:40:28 +0000 (13:40 -0700)]
xfs: pass the iunlink item to the xfs_iunlink_update_dinode trace point

So that decoding is only done when tracing is actually enabled and the
call site look a lot neater.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: pass objects to the xfs_irec_merge_{pre,post} trace points
Christoph Hellwig [Mon, 23 Sep 2024 20:40:27 +0000 (13:40 -0700)]
xfs: pass objects to the xfs_irec_merge_{pre,post} trace points

Pass the perag structure and the irec to these tracepoints so that the
decoding is only done when tracing is actually enabled and the call sites
look a lot neater.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: pass a perag structure to the xfs_ag_resv_init_error trace point
Christoph Hellwig [Mon, 23 Sep 2024 20:40:26 +0000 (13:40 -0700)]
xfs: pass a perag structure to the xfs_ag_resv_init_error trace point

And remove the single instance class indirection for it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: constify pag arguments to trace points
Christoph Hellwig [Mon, 23 Sep 2024 20:40:26 +0000 (13:40 -0700)]
xfs: constify pag arguments to trace points

Trace points never modify their arguments.  Mark all the pag objects
passed to trace points.  The exception is the xfs_ag_resv_class, which
uses the xfs_perag_resv helper that can't be marked const due to
other users modifying the returned structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: remove the unused xrep_bmap_walk_rmap trace point
Christoph Hellwig [Mon, 23 Sep 2024 20:40:25 +0000 (13:40 -0700)]
xfs: remove the unused xrep_bmap_walk_rmap trace point

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: remove the unused trace_xfs_iwalk_ag trace point
Christoph Hellwig [Mon, 23 Sep 2024 20:40:24 +0000 (13:40 -0700)]
xfs: remove the unused trace_xfs_iwalk_ag trace point

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: remove the mount field from struct xfs_busy_extents
Christoph Hellwig [Mon, 23 Sep 2024 20:40:23 +0000 (13:40 -0700)]
xfs: remove the mount field from struct xfs_busy_extents

The mount field is only passed to xfs_extent_busy_clear, which never uses
it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: keep a reference to the pag for busy extents
Christoph Hellwig [Mon, 23 Sep 2024 20:40:23 +0000 (13:40 -0700)]
xfs: keep a reference to the pag for busy extents

Processing of busy extents requires the perag structure, so keep the
reference while they are in flight.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: pass a pag to xfs_extent_busy_{search,reuse}
Christoph Hellwig [Mon, 23 Sep 2024 20:40:22 +0000 (13:40 -0700)]
xfs: pass a pag to xfs_extent_busy_{search,reuse}

Replace the [mp,agno] tuple with the perag structure, which will become
more useful later.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: add a xfs_agino_to_ino helper
Christoph Hellwig [Mon, 23 Sep 2024 20:40:21 +0000 (13:40 -0700)]
xfs: add a xfs_agino_to_ino helper

Add a helpers to convert an agino to an ino based on a pag structure.

This provides a simpler conversion and better type safety compared to the
existing code that passes the mount structure and the agno separately.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: add xfs_agbno_to_fsb and xfs_agbno_to_daddr helpers
Christoph Hellwig [Mon, 23 Sep 2024 20:40:20 +0000 (13:40 -0700)]
xfs: add xfs_agbno_to_fsb and xfs_agbno_to_daddr helpers

Add helpers to convert an agbno to a daddr or fsbno based on a pag
structure.

This provides a simpler conversion and better type safety compared to the
existing code that passes the mount structure and the agno separately.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: remove the agno argument to xfs_free_ag_extent
Christoph Hellwig [Mon, 23 Sep 2024 20:40:20 +0000 (13:40 -0700)]
xfs: remove the agno argument to xfs_free_ag_extent

xfs_free_ag_extent already has a pointer to the pag structure through
the agf buffer.  Use that instead of passing the redundant argument,
and do the same for the tracepoint.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: pass a pag to xfs_difree_inode_chunk
Christoph Hellwig [Mon, 23 Sep 2024 20:40:19 +0000 (13:40 -0700)]
xfs: pass a pag to xfs_difree_inode_chunk

We'll want to use more than just the agno field in a bit.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: remove the unused pag_active_wq field in struct xfs_perag
Christoph Hellwig [Mon, 23 Sep 2024 20:40:18 +0000 (13:40 -0700)]
xfs: remove the unused pag_active_wq field in struct xfs_perag

pag_active_wq is only woken, but never waited for.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: remove the unused pagb_count field in struct xfs_perag
Christoph Hellwig [Mon, 23 Sep 2024 20:40:17 +0000 (13:40 -0700)]
xfs: remove the unused pagb_count field in struct xfs_perag

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: fix superfluous clearing of info->low in __xfs_getfsmap_datadev
Christoph Hellwig [Mon, 23 Sep 2024 20:40:17 +0000 (13:40 -0700)]
xfs: fix superfluous clearing of info->low in __xfs_getfsmap_datadev

The for_each_perag helpers update the agno passed in for each iteration,
and thus the "if (pag->pag_agno == start_ag)" check will always be true.

Add another variable for the loop iterator so that the field is only
cleared after the first iteration.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: don't use __GFP_RETRY_MAYFAIL in xfs_initialize_perag
Christoph Hellwig [Mon, 23 Sep 2024 20:40:16 +0000 (13:40 -0700)]
xfs: don't use __GFP_RETRY_MAYFAIL in xfs_initialize_perag

__GFP_RETRY_MAYFAIL increases the likelyhood of allocations to fail,
which isn't really helpful during log recovery.  Remove the flag and
stick to the default GFP_KERNEL policies.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: merge the perag freeing helpers
Christoph Hellwig [Mon, 23 Sep 2024 20:40:15 +0000 (13:40 -0700)]
xfs: merge the perag freeing helpers

There is no good reason to have two different routines for freeing perag
structures for the unmount and error cases.  Add two arguments to specify
the range of AGs to free to xfs_free_perag, and use that to replace
xfs_free_unused_perag_range.

The addition RCU grace period for the error case is harmless, and the
extra check for the AG to actually exist is not required now that the
callers pass the exact known allocated range.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: pass the exact range to initialize to xfs_initialize_perag
Christoph Hellwig [Mon, 23 Sep 2024 20:40:14 +0000 (13:40 -0700)]
xfs: pass the exact range to initialize to xfs_initialize_perag

Currently only the new agcount is passed to xfs_initialize_perag, which
requires lookups of existing AGs to skip them and complicates error
handling.  Also pass the previous agcount so that the range that
xfs_initialize_perag operates on is exactly defined.  That way the
extra lookups can be avoided, and error handling can clean up the
exact range from the old count to the last added perag structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoiomap: constrain the file range passed to iomap_file_unshare
Darrick J. Wong [Tue, 1 Oct 2024 19:39:43 +0000 (12:39 -0700)]
iomap: constrain the file range passed to iomap_file_unshare

File contents can only be shared (i.e. reflinked) below EOF, so it makes
no sense to try to unshare ranges beyond EOF.  Constrain the file range
parameters here so that we don't have to do that in the callers.

Fixes: 5f4e5752a8a3 ("fs: add iomap_file_dirty")
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoiomap: don't bother unsharing delalloc extents
Darrick J. Wong [Tue, 1 Oct 2024 18:56:11 +0000 (11:56 -0700)]
iomap: don't bother unsharing delalloc extents

If unshare encounters a delalloc reservation in the srcmap, that means
that the file range isn't shared because delalloc reservations cannot be
reflinked.  Therefore, don't try to unshare them.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: don't free cowblocks from under dirty pagecache on unshare
Brian Foster [Tue, 1 Oct 2024 22:19:13 +0000 (15:19 -0700)]
xfs: don't free cowblocks from under dirty pagecache on unshare

fallocate unshare mode explicitly breaks extent sharing. When a
command completes, it checks the data fork for any remaining shared
extents to determine whether the reflink inode flag and COW fork
preallocation can be removed. This logic doesn't consider in-core
pagecache and I/O state, however, which means we can unsafely remove
COW fork blocks that are still needed under certain conditions.

For example, consider the following command sequence:

xfs_io -fc "pwrite 0 1k" -c "reflink <file> 0 256k 1k" \
-c "pwrite 0 32k" -c "funshare 0 1k" <file>

This allocates a data block at offset 0, shares it, and then
overwrites it with a larger buffered write. The overwrite triggers
COW fork preallocation, 32 blocks by default, which maps the entire
32k write to delalloc in the COW fork. All but the shared block at
offset 0 remains hole mapped in the data fork. The unshare command
redirties and flushes the folio at offset 0, removing the only
shared extent from the inode. Since the inode no longer maps shared
extents, unshare purges the COW fork before the remaining 28k may
have written back.

This leaves dirty pagecache backed by holes, which writeback quietly
skips, thus leaving clean, non-zeroed pagecache over holes in the
file. To verify, fiemap shows holes in the first 32k of the file and
reads return different data across a remount:

$ xfs_io -c "fiemap -v" <file>
<file>:
 EXT: FILE-OFFSET      BLOCK-RANGE      TOTAL FLAGS
   ...
   1: [8..511]:        hole               504
   ...
$ xfs_io -c "pread -v 4k 8" <file>
00001000:  cd cd cd cd cd cd cd cd  ........
$ umount <mnt>; mount <dev> <mnt>
$ xfs_io -c "pread -v 4k 8" <file>
00001000:  00 00 00 00 00 00 00 00  ........

To avoid this problem, make unshare follow the same rules used for
background cowblock scanning and never purge the COW fork for inodes
with dirty pagecache or in-flight I/O.

Fixes: 46afb0628b ("xfs: only flush the unshared range in xfs_reflink_unshare")
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: skip background cowblock trims on inodes open for write
Brian Foster [Mon, 30 Sep 2024 17:03:10 +0000 (10:03 -0700)]
xfs: skip background cowblock trims on inodes open for write

The background blockgc scanner runs on a 5m interval by default and
trims preallocation (post-eof and cow fork) from inodes that are
otherwise idle. Idle effectively means that iolock can be acquired
without blocking and that the inode has no dirty pagecache or I/O in
flight.

This simple mechanism and heuristic has worked fairly well for
post-eof speculative preallocations. Support for reflink and COW
fork preallocations came sometime later and plugged into the same
mechanism, with similar heuristics. Some recent testing has shown
that COW fork preallocation may be notably more sensitive to blockgc
processing than post-eof preallocation, however.

For example, consider an 8GB reflinked file with a COW extent size
hint of 1MB. A worst case fully randomized overwrite of this file
results in ~8k extents of an average size of ~1MB. If the same
workload is interrupted a couple times for blockgc processing
(assuming the file goes idle), the resulting extent count explodes
to over 100k extents with an average size <100kB. This is
significantly worse than ideal and essentially defeats the COW
extent size hint mechanism.

While this particular test is instrumented, it reflects a fairly
reasonable pattern in practice where random I/Os might spread out
over a large period of time with varying periods of (in)activity.
For example, consider a cloned disk image file for a VM or container
with long uptime and variable and bursty usage. A background blockgc
scan that races and processes the image file when it happens to be
clean and idle can have a significant effect on the future
fragmentation level of the file, even when still in use.

To help combat this, update the heuristic to skip cowblocks inodes
that are currently opened for write access during non-sync blockgc
scans. This allows COW fork preallocations to persist for as long as
possible unless otherwise needed for functional purposes (i.e. a
sync scan), the file is idle and closed, or the inode is being
evicted from cache. While here, update the comments to help
distinguish performance oriented heuristics from the logic that
exists to maintain functional correctness.

Suggested-by: Darrick Wong <djwong@kernel.org>
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoxfs: fix simplify extent lookup in xfs_can_free_eofblocks
Darrick J. Wong [Wed, 25 Sep 2024 18:54:52 +0000 (11:54 -0700)]
xfs: fix simplify extent lookup in xfs_can_free_eofblocks

In commit 11f4c3a53adde, we tried to simplify the extent lookup in
xfs_can_free_eofblocks so that it doesn't incur the overhead of all the
extra stuff that xfs_bmapi_read does around the iext lookup.

Unfortunately, this causes regressions on generic/603, xfs/108,
generic/219, xfs/173, generic/694, xfs/052, generic/230, and xfs/441
when always_cow is turned on.  In all cases, the regressions take the
form of alwayscow files consuming rather more space than the golden
output is expecting.  I observed that in all these cases, the cause of
the excess space usage was due to CoW fork delalloc reservations that go
beyond EOF.

For alwayscow files we allow posteof delalloc CoW reservations because
all writes go through the CoW fork.  Recall that all extents in the CoW
fork are accounted for via i_delayed_blks, which means that prior to
this patch, we'd invoke xfs_free_eofblocks on first close if anything
was in the CoW fork.  Now we don't do that.

Fix the problem by reverting the removal of the i_delayed_blks check.

Fixes: 11f4c3a53adde ("xfs: simplify extent lookup in xfs_can_free_eofblocks")
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
10 months agoLinux 6.12-rc1
Linus Torvalds [Sun, 29 Sep 2024 22:06:19 +0000 (15:06 -0700)]
Linux 6.12-rc1

10 months agox86: kvm: fix build error
Linus Torvalds [Sun, 29 Sep 2024 21:47:33 +0000 (14:47 -0700)]
x86: kvm: fix build error

The cpu_emergency_register_virt_callback() function is used
unconditionally by the x86 kvm code, but it is declared (and defined)
conditionally:

  #if IS_ENABLED(CONFIG_KVM_INTEL) || IS_ENABLED(CONFIG_KVM_AMD)
  void cpu_emergency_register_virt_callback(cpu_emergency_virt_cb *callback);
  ...

leading to a build error when neither KVM_INTEL nor KVM_AMD support is
enabled:

  arch/x86/kvm/x86.c: In function ‘kvm_arch_enable_virtualization’:
  arch/x86/kvm/x86.c:12517:9: error: implicit declaration of function ‘cpu_emergency_register_virt_callback’ [-Wimplicit-function-declaration]
  12517 |         cpu_emergency_register_virt_callback(kvm_x86_ops.emergency_disable_virtualization_cpu);
        |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  arch/x86/kvm/x86.c: In function ‘kvm_arch_disable_virtualization’:
  arch/x86/kvm/x86.c:12522:9: error: implicit declaration of function ‘cpu_emergency_unregister_virt_callback’ [-Wimplicit-function-declaration]
  12522 |         cpu_emergency_unregister_virt_callback(kvm_x86_ops.emergency_disable_virtualization_cpu);
        |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fix the build by defining empty helper functions the same way the old
cpu_emergency_disable_virtualization() function was dealt with for the
same situation.

Maybe we could instead have made the call sites conditional, since the
callers (kvm_arch_{en,dis}able_virtualization()) have an empty weak
fallback.  I'll leave that to the kvm people to argue about, this at
least gets the build going for that particular config.

Fixes: 590b09b1d88e ("KVM: x86: Register "emergency disable" callbacks when virt is enabled")
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Kai Huang <kai.huang@intel.com>
Cc: Chao Gao <chao.gao@intel.com>
Cc: Farrah Chen <farrah.chen@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 months agoMerge tag 'mailbox-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar...
Linus Torvalds [Sun, 29 Sep 2024 16:53:04 +0000 (09:53 -0700)]
Merge tag 'mailbox-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox

Pull mailbox updates from Jassi Brar:

 - fix kconfig dependencies (mhu-v3, omap2+)

 - use devie name instead of genereic imx_mu_chan as interrupt name
   (imx)

 - enable sa8255p and qcs8300 ipc controllers (qcom)

 - Fix timeout during suspend mode (bcm2835)

 - convert to use use of_property_match_string (mailbox)

 - enable mt8188 (mediatek)

 - use devm_clk_get_enabled helpers (spreadtrum)

 - fix device-id typo (rockchip)

* tag 'mailbox-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox:
  mailbox, remoteproc: omap2+: fix compile testing
  dt-bindings: mailbox: qcom-ipcc: Document QCS8300 IPCC
  dt-bindings: mailbox: qcom-ipcc: document the support for SA8255p
  dt-bindings: mailbox: mtk,adsp-mbox: Add compatible for MT8188
  mailbox: Use of_property_match_string() instead of open-coding
  mailbox: bcm2835: Fix timeout during suspend mode
  mailbox: sprd: Use devm_clk_get_enabled() helpers
  mailbox: rockchip: fix a typo in module autoloading
  mailbox: imx: use device name in interrupt name
  mailbox: ARM_MHU_V3 should depend on ARM64

10 months agoMerge tag 'i2c-for-6.12-rc1-additional_fixes' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Sun, 29 Sep 2024 16:47:33 +0000 (09:47 -0700)]
Merge tag 'i2c-for-6.12-rc1-additional_fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:

 - fix DesignWare driver ENABLE-ABORT sequence, ensuring ABORT can
   always be sent when needed

 - check for PCLK in the SynQuacer controller as an optional clock,
   allowing ACPI to directly provide the clock rate

 - KEBA driver Kconfig dependency fix

 - fix XIIC driver power suspend sequence

* tag 'i2c-for-6.12-rc1-additional_fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: xiic: Fix pm_runtime_set_suspended() with runtime pm enabled
  i2c: keba: I2C_KEBA should depend on KEBA_CP500
  i2c: synquacer: Deal with optional PCLK correctly
  i2c: designware: fix controller is holding SCL low while ENABLE bit is disabled

10 months agoMerge tag 'dma-mapping-6.12-2024-09-29' of git://git.infradead.org/users/hch/dma...
Linus Torvalds [Sun, 29 Sep 2024 16:35:10 +0000 (09:35 -0700)]
Merge tag 'dma-mapping-6.12-2024-09-29' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping fix from Christoph Hellwig:

 - handle chained SGLs in the new tracing code (Christoph Hellwig)

* tag 'dma-mapping-6.12-2024-09-29' of git://git.infradead.org/users/hch/dma-mapping:
  dma-mapping: fix DMA API tracing for chained scatterlists

10 months agoMerge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sun, 29 Sep 2024 16:22:34 +0000 (09:22 -0700)]
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull more SCSI updates from James Bottomley:
 "These are mostly minor updates.

  There are two drivers (lpfc and mpi3mr) which missed the initial
  pull and a core change to retry a start/stop unit which affect
  suspend/resume"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (32 commits)
  scsi: lpfc: Update lpfc version to 14.4.0.5
  scsi: lpfc: Support loopback tests with VMID enabled
  scsi: lpfc: Revise TRACE_EVENT log flag severities from KERN_ERR to KERN_WARNING
  scsi: lpfc: Ensure DA_ID handling completion before deleting an NPIV instance
  scsi: lpfc: Fix kref imbalance on fabric ndlps from dev_loss_tmo handler
  scsi: lpfc: Restrict support for 32 byte CDBs to specific HBAs
  scsi: lpfc: Update phba link state conditional before sending CMF_SYNC_WQE
  scsi: lpfc: Add ELS_RSP cmd to the list of WQEs to flush in lpfc_els_flush_cmd()
  scsi: mpi3mr: Update driver version to 8.12.0.0.50
  scsi: mpi3mr: Improve wait logic while controller transitions to READY state
  scsi: mpi3mr: Update MPI Headers to revision 34
  scsi: mpi3mr: Use firmware-provided timestamp update interval
  scsi: mpi3mr: Enhance the Enable Controller retry logic
  scsi: sd: Fix off-by-one error in sd_read_block_characteristics()
  scsi: pm8001: Do not overwrite PCI queue mapping
  scsi: scsi_debug: Remove a useless memset()
  scsi: pmcraid: Convert comma to semicolon
  scsi: sd: Retry START STOP UNIT commands
  scsi: mpi3mr: A performance fix
  scsi: ufs: qcom: Update MODE_MAX cfg_bw value
  ...

10 months agoMerge tag 'bcachefs-2024-09-28' of git://evilpiepirate.org/bcachefs
Linus Torvalds [Sun, 29 Sep 2024 16:17:44 +0000 (09:17 -0700)]
Merge tag 'bcachefs-2024-09-28' of git://evilpiepirate.org/bcachefs

Pull more bcachefs updates from Kent Overstreet:
 "Assorted minor syzbot fixes, and for bigger stuff:

  Fix two disk accounting rewrite bugs:

   - Disk accounting keys use the version field of bkey so that journal
     replay can tell which updates have been applied to the btree.

     This is set in the transaction commit path, after we've gotten our
     journal reservation (and our time ordering), but the
     BCH_TRANS_COMMIT_skip_accounting_apply flag that journal replay
     uses was incorrectly skipping this for new updates generated prior
     to journal replay.

     This fixes the underlying cause of an assertion pop in
     disk_accounting_read.

   - A couple of fixes for disk accounting + device removal.

     Checking if acocunting replicas entries were marked in the
     superblock was being done at the wrong point, when deltas in the
     journal could still zero them out, and then additionally we'd try
     to add a missing replicas entry to the superblock without checking
     if it referred to an invalid (removed) device.

  A whole slew of repair fixes:

   - fix infinite loop in propagate_key_to_snapshot_leaves(), this fixes
     an infinite loop when repairing a filesystem with many snapshots

   - fix incorrect transaction restart handling leading to occasional
     "fsck counted ..." warnings

   - fix warning in __bch2_fsck_err() for bkey fsck errors

   - check_inode() in fsck now correctly checks if the filesystem was
     clean

   - there shouldn't be pending logged ops if the fs was clean, we now
     check for this

   - remove_backpointer() doesn't remove a dirent that doesn't actually
     point to the inode

   - many more fsck errors are AUTOFIX"

* tag 'bcachefs-2024-09-28' of git://evilpiepirate.org/bcachefs: (35 commits)
  bcachefs: check_subvol_path() now prints subvol root inode
  bcachefs: remove_backpointer() now checks if dirent points to inode
  bcachefs: dirent_points_to_inode() now warns on mismatch
  bcachefs: Fix lost wake up
  bcachefs: Check for logged ops when clean
  bcachefs: BCH_FS_clean_recovery
  bcachefs: Convert disk accounting BUG_ON() to WARN_ON()
  bcachefs: Fix BCH_TRANS_COMMIT_skip_accounting_apply
  bcachefs: Check for accounting keys with bversion=0
  bcachefs: rename version -> bversion
  bcachefs: Don't delete unlinked inodes before logged op resume
  bcachefs: Fix BCH_SB_ERRS() so we can reorder
  bcachefs: Fix fsck warnings from bkey validation
  bcachefs: Move transaction commit path validation to as late as possible
  bcachefs: Fix disk accounting attempting to mark invalid replicas entry
  bcachefs: Fix unlocked access to c->disk_sb.sb in bch2_replicas_entry_validate()
  bcachefs: Fix accounting read + device removal
  bcachefs: bch_accounting_mode
  bcachefs: fix transaction restart handling in check_extents(), check_dirents()
  bcachefs: kill inode_walker_entry.seen_this_pos
  ...

10 months agoMerge tag 'x86-urgent-2024-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 29 Sep 2024 16:10:00 +0000 (09:10 -0700)]
Merge tag 'x86-urgent-2024-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Ingo Molnar:
 "Fix TDX MMIO #VE fault handling, and add two new Intel model numbers
  for 'Pantherlake' and 'Diamond Rapids'"

* tag 'x86-urgent-2024-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/cpu: Add two Intel CPU model numbers
  x86/tdx: Fix "in-kernel MMIO" check

10 months agoMerge tag 'locking-urgent-2024-09-29' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 29 Sep 2024 15:51:30 +0000 (08:51 -0700)]
Merge tag 'locking-urgent-2024-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking updates from Ingo Molnar:
 "lockdep:
    - Fix potential deadlock between lockdep and RCU (Zhiguo Niu)
    - Use str_plural() to address Coccinelle warning (Thorsten Blum)
    - Add debuggability enhancement (Luis Claudio R. Goncalves)

  static keys & calls:
    - Fix static_key_slow_dec() yet again (Peter Zijlstra)
    - Handle module init failure correctly in static_call_del_module()
      (Thomas Gleixner)
    - Replace pointless WARN_ON() in static_call_module_notify() (Thomas
      Gleixner)

  <linux/cleanup.h>:
    - Add usage and style documentation (Dan Williams)

  rwsems:
    - Move is_rwsem_reader_owned() and rwsem_owner() under
      CONFIG_DEBUG_RWSEMS (Waiman Long)

  atomic ops, x86:
    - Redeclare x86_32 arch_atomic64_{add,sub}() as void (Uros Bizjak)
    - Introduce the read64_nonatomic macro to x86_32 with cx8 (Uros
      Bizjak)"

Signed-off-by: Ingo Molnar <mingo@kernel.org>
* tag 'locking-urgent-2024-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/rwsem: Move is_rwsem_reader_owned() and rwsem_owner() under CONFIG_DEBUG_RWSEMS
  jump_label: Fix static_key_slow_dec() yet again
  static_call: Replace pointless WARN_ON() in static_call_module_notify()
  static_call: Handle module init failure correctly in static_call_del_module()
  locking/lockdep: Simplify character output in seq_line()
  lockdep: fix deadlock issue between lockdep and rcu
  lockdep: Use str_plural() to fix Coccinelle warning
  cleanup: Add usage and style documentation
  lockdep: suggest the fix for "lockdep bfs error:-1" on print_bfs_bug
  locking/atomic/x86: Redeclare x86_32 arch_atomic64_{add,sub}() as void
  locking/atomic/x86: Introduce the read64_nonatomic macro to x86_32 with cx8

10 months agoMerge tag 'cocci-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall...
Linus Torvalds [Sun, 29 Sep 2024 15:44:28 +0000 (08:44 -0700)]
Merge tag 'cocci-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux

Pull coccinelle updates from Julia Lawall:
 "Extend string_choices.cocci to use more available helpers

  Ten patches from Hongbo Li extending string_choices.cocci with the
  complete set of functions offered by include/linux/string_choices.h.

  One patch from myself reducing the number of redundant cases that are
  checked by Coccinelle, giving a small performance improvement"

* tag 'cocci-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux:
  Reduce Coccinelle choices in string_choices.cocci
  coccinelle: Remove unnecessary parentheses for only one possible change.
  coccinelle: Add rules to find str_yes_no() replacements
  coccinelle: Add rules to find str_on_off() replacements
  coccinelle: Add rules to find str_write_read() replacements
  coccinelle: Add rules to find str_read_write() replacements
  coccinelle: Add rules to find str_enable{d}_disable{d}() replacements
  coccinelle: Add rules to find str_lo{w}_hi{gh}() replacements
  coccinelle: Add rules to find str_hi{gh}_lo{w}() replacements
  coccinelle: Add rules to find str_false_true() replacements
  coccinelle: Add rules to find str_true_false() replacements

10 months agoMerge tag 'linux_kselftest-next-6.12-rc1-fixes' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Sun, 29 Sep 2024 15:37:03 +0000 (08:37 -0700)]
Merge tag 'linux_kselftest-next-6.12-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest fix from Shuah Khan:
 "One urgent fix to vDSO as automated testing is failing due to this
  bug"

* tag 'linux_kselftest-next-6.12-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests: vDSO: align stack for O2-optimized memcpy

10 months agoMerge branch 'locking/core' into locking/urgent, to pick up pending commits
Ingo Molnar [Sun, 29 Sep 2024 06:57:18 +0000 (08:57 +0200)]
Merge branch 'locking/core' into locking/urgent, to pick up pending commits

Merge all pending locking commits into a single branch.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
10 months agoReduce Coccinelle choices in string_choices.cocci
Julia Lawall [Sat, 28 Sep 2024 19:26:22 +0000 (21:26 +0200)]
Reduce Coccinelle choices in string_choices.cocci

The isomorphism neg_if_exp negates the test of a ?: conditional,
making it unnecessary to have an explicit case for a negated test
with the branches inverted.

At the same time, we can disable neg_if_exp in cases where a
different API function may be more suitable for a negated test.

Finally, in the non-patch cases, E matches an expression with
parentheses around it, so there is no need to mention ()
explicitly in the pattern.  The () are still needed in the patch
cases, because we want to drop them, if they are present.

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
10 months agococcinelle: Remove unnecessary parentheses for only one possible change.
Hongbo Li [Wed, 11 Sep 2024 01:09:27 +0000 (09:09 +0800)]
coccinelle: Remove unnecessary parentheses for only one possible change.

The parentheses are only needed if there is a disjunction, ie a
set of possible changes. If there is only one pattern, we can
remove these parentheses. Just like the format:

  -  x
  +  y

not:

  (
  -  x
  +  y
  )

Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
10 months agococcinelle: Add rules to find str_yes_no() replacements
Hongbo Li [Wed, 11 Sep 2024 01:09:26 +0000 (09:09 +0800)]
coccinelle: Add rules to find str_yes_no() replacements

As other rules done, we add rules for str_yes_no()
to check the relative opportunities.

Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
10 months agococcinelle: Add rules to find str_on_off() replacements
Hongbo Li [Wed, 11 Sep 2024 01:09:25 +0000 (09:09 +0800)]
coccinelle: Add rules to find str_on_off() replacements

As other rules done, we add rules for str_on_off()
to check the relative opportunities.

Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
10 months agococcinelle: Add rules to find str_write_read() replacements
Hongbo Li [Wed, 11 Sep 2024 01:09:24 +0000 (09:09 +0800)]
coccinelle: Add rules to find str_write_read() replacements

As other rules done, we add rules for str_write_read()
to check the relative opportunities.

Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
10 months agococcinelle: Add rules to find str_read_write() replacements
Hongbo Li [Wed, 11 Sep 2024 01:09:23 +0000 (09:09 +0800)]
coccinelle: Add rules to find str_read_write() replacements

As other rules done, we add rules for str_read_write()
to check the relative opportunities.

Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
10 months agococcinelle: Add rules to find str_enable{d}_disable{d}() replacements
Hongbo Li [Wed, 11 Sep 2024 01:09:22 +0000 (09:09 +0800)]
coccinelle: Add rules to find str_enable{d}_disable{d}() replacements

As other rules done, we add rules for str_enable{d}_
disable{d}() to check the relative opportunities.

Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
10 months agococcinelle: Add rules to find str_lo{w}_hi{gh}() replacements
Hongbo Li [Wed, 11 Sep 2024 01:09:21 +0000 (09:09 +0800)]
coccinelle: Add rules to find str_lo{w}_hi{gh}() replacements

As other rules done, we add rules for str_lo{w}_hi{gh}()
to check the relative opportunities.

Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
10 months agococcinelle: Add rules to find str_hi{gh}_lo{w}() replacements
Hongbo Li [Wed, 11 Sep 2024 01:09:20 +0000 (09:09 +0800)]
coccinelle: Add rules to find str_hi{gh}_lo{w}() replacements

As other rules done, we add rules for str_hi{gh}_lo{w}()
to check the relative opportunities.

Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
10 months agococcinelle: Add rules to find str_false_true() replacements
Hongbo Li [Wed, 11 Sep 2024 01:09:19 +0000 (09:09 +0800)]
coccinelle: Add rules to find str_false_true() replacements

As done with str_true_false(), add checks for str_false_true()
opportunities. A simple test can find over 9 cases currently
exist in the tree.

Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
10 months agococcinelle: Add rules to find str_true_false() replacements
Hongbo Li [Wed, 11 Sep 2024 01:09:18 +0000 (09:09 +0800)]
coccinelle: Add rules to find str_true_false() replacements

After str_true_false() has been introduced in the tree,
we can add rules for finding places where str_true_false()
can be used. A simple test can find over 10 locations.

Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
10 months agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Sat, 28 Sep 2024 16:20:14 +0000 (09:20 -0700)]
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull x86 kvm updates from Paolo Bonzini:
 "x86:

   - KVM currently invalidates the entirety of the page tables, not just
     those for the memslot being touched, when a memslot is moved or
     deleted.

     This does not traditionally have particularly noticeable overhead,
     but Intel's TDX will require the guest to re-accept private pages
     if they are dropped from the secure EPT, which is a non starter.

     Actually, the only reason why this is not already being done is a
     bug which was never fully investigated and caused VM instability
     with assigned GeForce GPUs, so allow userspace to opt into the new
     behavior.

   - Advertise AVX10.1 to userspace (effectively prep work for the
     "real" AVX10 functionality that is on the horizon)

   - Rework common MSR handling code to suppress errors on userspace
     accesses to unsupported-but-advertised MSRs

     This will allow removing (almost?) all of KVM's exemptions for
     userspace access to MSRs that shouldn't exist based on the vCPU
     model (the actual cleanup is non-trivial future work)

   - Rework KVM's handling of x2APIC ICR, again, because AMD (x2AVIC)
     splits the 64-bit value into the legacy ICR and ICR2 storage,
     whereas Intel (APICv) stores the entire 64-bit value at the ICR
     offset

   - Fix a bug where KVM would fail to exit to userspace if one was
     triggered by a fastpath exit handler

   - Add fastpath handling of HLT VM-Exit to expedite re-entering the
     guest when there's already a pending wake event at the time of the
     exit

   - Fix a WARN caused by RSM entering a nested guest from SMM with
     invalid guest state, by forcing the vCPU out of guest mode prior to
     signalling SHUTDOWN (the SHUTDOWN hits the VM altogether, not the
     nested guest)

   - Overhaul the "unprotect and retry" logic to more precisely identify
     cases where retrying is actually helpful, and to harden all retry
     paths against putting the guest into an infinite retry loop

   - Add support for yielding, e.g. to honor NEED_RESCHED, when zapping
     rmaps in the shadow MMU

   - Refactor pieces of the shadow MMU related to aging SPTEs in
     prepartion for adding multi generation LRU support in KVM

   - Don't stuff the RSB after VM-Exit when RETPOLINE=y and AutoIBRS is
     enabled, i.e. when the CPU has already flushed the RSB

   - Trace the per-CPU host save area as a VMCB pointer to improve
     readability and cleanup the retrieval of the SEV-ES host save area

   - Remove unnecessary accounting of temporary nested VMCB related
     allocations

   - Set FINAL/PAGE in the page fault error code for EPT violations if
     and only if the GVA is valid. If the GVA is NOT valid, there is no
     guest-side page table walk and so stuffing paging related metadata
     is nonsensical

   - Fix a bug where KVM would incorrectly synthesize a nested VM-Exit
     instead of emulating posted interrupt delivery to L2

   - Add a lockdep assertion to detect unsafe accesses of vmcs12
     structures

   - Harden eVMCS loading against an impossible NULL pointer deref
     (really truly should be impossible)

   - Minor SGX fix and a cleanup

   - Misc cleanups

  Generic:

   - Register KVM's cpuhp and syscore callbacks when enabling
     virtualization in hardware, as the sole purpose of said callbacks
     is to disable and re-enable virtualization as needed

   - Enable virtualization when KVM is loaded, not right before the
     first VM is created

     Together with the previous change, this simplifies a lot the logic
     of the callbacks, because their very existence implies
     virtualization is enabled

   - Fix a bug that results in KVM prematurely exiting to userspace for
     coalesced MMIO/PIO in many cases, clean up the related code, and
     add a testcase

   - Fix a bug in kvm_clear_guest() where it would trigger a buffer
     overflow _if_ the gpa+len crosses a page boundary, which thankfully
     is guaranteed to not happen in the current code base. Add WARNs in
     more helpers that read/write guest memory to detect similar bugs

  Selftests:

   - Fix a goof that caused some Hyper-V tests to be skipped when run on
     bare metal, i.e. NOT in a VM

   - Add a regression test for KVM's handling of SHUTDOWN for an SEV-ES
     guest

   - Explicitly include one-off assets in .gitignore. Past Sean was
     completely wrong about not being able to detect missing .gitignore
     entries

   - Verify userspace single-stepping works when KVM happens to handle a
     VM-Exit in its fastpath

   - Misc cleanups"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (127 commits)
  Documentation: KVM: fix warning in "make htmldocs"
  s390: Enable KVM_S390_UCONTROL config in debug_defconfig
  selftests: kvm: s390: Add VM run test case
  KVM: SVM: let alternatives handle the cases when RSB filling is required
  KVM: VMX: Set PFERR_GUEST_{FINAL,PAGE}_MASK if and only if the GVA is valid
  KVM: x86/mmu: Use KVM_PAGES_PER_HPAGE() instead of an open coded equivalent
  KVM: x86/mmu: Add KVM_RMAP_MANY to replace open coded '1' and '1ul' literals
  KVM: x86/mmu: Fold mmu_spte_age() into kvm_rmap_age_gfn_range()
  KVM: x86/mmu: Morph kvm_handle_gfn_range() into an aging specific helper
  KVM: x86/mmu: Honor NEED_RESCHED when zapping rmaps and blocking is allowed
  KVM: x86/mmu: Add a helper to walk and zap rmaps for a memslot
  KVM: x86/mmu: Plumb a @can_yield parameter into __walk_slot_rmaps()
  KVM: x86/mmu: Move walk_slot_rmaps() up near for_each_slot_rmap_range()
  KVM: x86/mmu: WARN on MMIO cache hit when emulating write-protected gfn
  KVM: x86/mmu: Detect if unprotect will do anything based on invalid_list
  KVM: x86/mmu: Subsume kvm_mmu_unprotect_page() into the and_retry() version
  KVM: x86: Rename reexecute_instruction()=>kvm_unprotect_and_retry_on_failure()
  KVM: x86: Update retry protection fields when forcing retry on emulation failure
  KVM: x86: Apply retry protection to "unprotect on failure" path
  KVM: x86: Check EMULTYPE_WRITE_PF_TO_SP before unprotecting gfn
  ...

10 months agoMerge tag 's390-6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Sat, 28 Sep 2024 16:11:46 +0000 (09:11 -0700)]
Merge tag 's390-6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull more s390 updates from Vasily Gorbik:

 - Clean up and improve vdso code: use SYM_* macros for function and
   data annotations, add CFI annotations to fix GDB unwinding, optimize
   the chacha20 implementation

 - Add vfio-ap driver feature advertisement for use by libvirt and
   mdevctl

* tag 's390-6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/vfio-ap: Driver feature advertisement
  s390/vdso: Use one large alternative instead of an alternative branch
  s390/vdso: Use SYM_DATA_START_LOCAL()/SYM_DATA_END() for data objects
  tools: Add additional SYM_*() stubs to linkage.h
  s390/vdso: Use macros for annotation of asm functions
  s390/vdso: Add CFI annotations to __arch_chacha20_blocks_nostack()
  s390/vdso: Fix comment within __arch_chacha20_blocks_nostack()
  s390/vdso: Get rid of permutation constants

10 months agoMerge tag 'modules-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof...
Linus Torvalds [Sat, 28 Sep 2024 16:06:15 +0000 (09:06 -0700)]
Merge tag 'modules-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux

Pull module updates from Luis Chamberlain:
 "There are a few fixes / cleanups from Vincent, Chunhui, and Petr, but
  the most important part of this pull request is the Rust community
  stepping up to help maintain both C / Rust code for future Rust module
  support. We grow the set of modules maintainers by three now, and with
  this hope to scale to help address what's needed to properly support
  future Rust module support.

  A lot of exciting stuff coming in future kernel releases.

  This has been on linux-next for ~ 3 weeks now with no issues"

* tag 'modules-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux:
  module: Refine kmemleak scanned areas
  module: abort module loading when sysfs setup suffer errors
  MAINTAINERS: scale modules with more reviewers
  module: Clean up the description of MODULE_SIG_<type>
  module: Split modules_install compression and in-kernel decompression

10 months agoMerge tag 'fbdev-for-6.12-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 28 Sep 2024 16:00:38 +0000 (09:00 -0700)]
Merge tag 'fbdev-for-6.12-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev

Pull fbdev fixes from Helge Deller:

 - crash fix in fbcon_putcs

 - avoid a possible string memory overflow in sisfb

 - minor code optimizations in omapfb and fbcon

* tag 'fbdev-for-6.12-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
  fbdev: sisfb: Fix strbuf array overflow
  fbcon: break earlier in search_fb_in_map and search_for_mapped_con
  fbdev: omapfb: Call of_node_put(ep) only once in omapdss_of_find_source_for_first_ep()
  fbcon: Fix a NULL pointer dereference issue in fbcon_putcs

10 months agoMerge tag 'drm-next-2024-09-28' of https://gitlab.freedesktop.org/drm/kernel
Linus Torvalds [Sat, 28 Sep 2024 15:47:46 +0000 (08:47 -0700)]
Merge tag 'drm-next-2024-09-28' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Regular fixes for the week to end the merge window, i915 and xe have a
  few each, amdgpu makes up most of it with a bunch of SR-IOV related
  fixes amongst others.

  i915:
   - Fix BMG support to UHBR13.5
   - Two PSR fixes
   - Fix colorimetry detection for DP

  xe:
   - Fix macro for checking minimum GuC version
   - Fix CCS offset calculation for some BMG SKUs
   - Fix locking on memory usage reporting via fdinfo and BO destroy
   - Fix GPU page fault handler on a closed VM
   - Fix overflow in oa batch buffer

  amdgpu:
   - MES 12 fix
   - KFD fence sync fix
   - SR-IOV fixes
   - VCN 4.0.6 fix
   - SDMA 7.x fix
   - Bump driver version to note cleared VRAM support
   - SWSMU fix
   - CU occupancy logic fix
   - SDMA queue fix"

* tag 'drm-next-2024-09-28' of https://gitlab.freedesktop.org/drm/kernel: (79 commits)
  drm/amd/pm: update workload mask after the setting
  drm/amdgpu: bump driver version for cleared VRAM
  drm/amdgpu: fix vbios fetching for SR-IOV
  drm/amdgpu: fix PTE copy corruption for sdma 7
  drm/amdkfd: Add SDMA queue quantum support for GFX12
  drm/amdgpu/vcn: enable AV1 on both instances
  drm/amdkfd: Fix CU occupancy for GFX 9.4.3
  drm/amdkfd: Update logic for CU occupancy calculations
  drm/amdgpu: skip coredump after job timeout in SRIOV
  drm/amdgpu: sync to KFD fences before clearing PTEs
  drm/amdgpu/mes12: set enable_level_process_quantum_check
  drm/i915/dp: Fix colorimetry detection
  drm/amdgpu/mes12: reduce timeout
  drm/amdgpu/mes11: reduce timeout
  drm/amdgpu: use GEM references instead of TTMs v2
  drm/amd/display: Allow backlight to go below `AMDGPU_DM_DEFAULT_MIN_BACKLIGHT`
  drm/amd/display: Fix kdoc entry for 'tps' in 'dc_process_dmub_dpia_set_tps_notification'
  drm/amdgpu: update golden regs for gfx12
  drm/amdgpu: clean up vbios fetching code
  drm/amd/display: handle nulled pipe context in DCE110's set_drr()
  ...

10 months agoMerge tag 'ceph-for-6.12-rc1' of https://github.com/ceph/ceph-client
Linus Torvalds [Sat, 28 Sep 2024 15:40:36 +0000 (08:40 -0700)]
Merge tag 'ceph-for-6.12-rc1' of https://github.com/ceph/ceph-client

Pull ceph updates from Ilya Dryomov:
 "Three CephFS fixes from Xiubo and Luis and a bunch of assorted
  cleanups"

* tag 'ceph-for-6.12-rc1' of https://github.com/ceph/ceph-client:
  ceph: remove the incorrect Fw reference check when dirtying pages
  ceph: Remove empty definition in header file
  ceph: Fix typo in the comment
  ceph: fix a memory leak on cap_auths in MDS client
  ceph: flush all caps releases when syncing the whole filesystem
  ceph: rename ceph_flush_cap_releases() to ceph_flush_session_cap_releases()
  libceph: use min() to simplify code in ceph_dns_resolve_name()
  ceph: Convert to use jiffies macro
  ceph: Remove unused declarations