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82339c4911
1311470 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
82339c4911 |
sanitize xattr and io_uring interactions with it,
add *xattrat() syscalls, sanitize struct filename handling in there. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCZzdj4gAKCRBZ7Krx/gZQ 6/02AQC8ndn9i1wLGRb5DdZYGNWUDhXCdPrZCF2nyvU2swCIPwEAm1H5F/bxBXeT 6qCLHThVw4KTJOT2aDY03ELrxbi8Vg4= =35Oj -----END PGP SIGNATURE----- Merge tag 'pull-xattr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull xattr updates from Al Viro: "Sanitize xattr and io_uring interactions with it, add *xattrat() syscalls, sanitize struct filename handling in there" * tag 'pull-xattr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: xattr: remove redundant check on variable err fs/xattr: add *at family syscalls new helpers: file_removexattr(), filename_removexattr() new helpers: file_listxattr(), filename_listxattr() replace do_getxattr() with saner helpers. replace do_setxattr() with saner helpers. new helper: import_xattr_name() fs: rename struct xattr_ctx to kernel_xattr_ctx xattr: switch to CLASS(fd) io_[gs]etxattr_prep(): just use getname() io_uring: IORING_OP_F[GS]ETXATTR is fine with REQ_F_FIXED_FILE getname_maybe_null() - the third variant of pathname copy-in teach filename_lookup() to treat NULL filename as "" |
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Linus Torvalds
|
0f25f0e4ef |
the bulk of struct fd memory safety stuff
Making sure that struct fd instances are destroyed in the same
scope where they'd been created, getting rid of reassignments
and passing them by reference, converting to CLASS(fd{,_pos,_raw}).
We are getting very close to having the memory safety of that stuff
trivial to verify.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-fd' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull 'struct fd' class updates from Al Viro:
"The bulk of struct fd memory safety stuff
Making sure that struct fd instances are destroyed in the same scope
where they'd been created, getting rid of reassignments and passing
them by reference, converting to CLASS(fd{,_pos,_raw}).
We are getting very close to having the memory safety of that stuff
trivial to verify"
* tag 'pull-fd' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (28 commits)
deal with the last remaing boolean uses of fd_file()
css_set_fork(): switch to CLASS(fd_raw, ...)
memcg_write_event_control(): switch to CLASS(fd)
assorted variants of irqfd setup: convert to CLASS(fd)
do_pollfd(): convert to CLASS(fd)
convert do_select()
convert vfs_dedupe_file_range().
convert cifs_ioctl_copychunk()
convert media_request_get_by_fd()
convert spu_run(2)
switch spufs_calls_{get,put}() to CLASS() use
convert cachestat(2)
convert do_preadv()/do_pwritev()
fdget(), more trivial conversions
fdget(), trivial conversions
privcmd_ioeventfd_assign(): don't open-code eventfd_ctx_fdget()
o2hb_region_dev_store(): avoid goto around fdget()/fdput()
introduce "fd_pos" class, convert fdget_pos() users to it.
fdget_raw() users: switch to CLASS(fd_raw)
convert vmsplice() to CLASS(fd)
...
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Linus Torvalds
|
23acd17754 |
vfs-6.13.ecryptfs
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzcmVQAKCRCRxhvAZXjc ogE8AP9fT1T0rkYHT2ym2ulnQ2oARqO5VOnGmzYiTs2oHAfn4wD9GwH1nkMvlNTY l7zalIg2AIdN6qvTATSoD3sN+fJXXgU= =RNSE -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.ecryptfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull ecryptfs updates from Christian Brauner: "The folio project is about to remove page->index. This contains the work required for ecryptfs" * tag 'vfs-6.13.ecryptfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: ecryptfs: Pass the folio index to crypt_extent() ecryptfs: Convert lower_offset_for_page() to take a folio ecryptfs: Convert ecryptfs_decrypt_page() to take a folio ecryptfs: Convert ecryptfs_encrypt_page() to take a folio ecryptfs: Convert ecryptfs_write_lower_page_segment() to take a folio ecryptfs: Convert ecryptfs_write() to use a folio ecryptfs: Convert ecryptfs_read_lower_page_segment() to take a folio ecryptfs: Convert ecryptfs_copy_up_encrypted_with_header() to take a folio ecryptfs: Use a folio throughout ecryptfs_read_folio() ecryptfs: Convert ecryptfs_writepage() to ecryptfs_writepages() |
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Linus Torvalds
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241c7ed4d4 |
vfs-6.13.untorn.writes
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzcopwAKCRCRxhvAZXjc oitWAQD68PGFI6/ES9x+qGsDFEZBH08icuO+a9dyaZXyNRosDgD/ex2zHj6F7IzS Ghgb9jiqWQ8l2+PDYfisxa/0jiqCbAk= =DmXf -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.untorn.writes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs untorn write support from Christian Brauner: "An atomic write is a write issed with torn-write protection. This means for a power failure or any hardware failure all or none of the data from the write will be stored, never a mix of old and new data. This work is already supported for block devices. If a block device is opened with O_DIRECT and the block device supports atomic write, then FMODE_CAN_ATOMIC_WRITE is added to the file of the opened block device. This contains the work to expand atomic write support to filesystems, specifically ext4 and XFS. Currently, only support for writing exactly one filesystem block atomically is added. Since it's now possible to have filesystem block size > page size for XFS, it's possible to write 4K+ blocks atomically on x86" * tag 'vfs-6.13.untorn.writes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: iomap: drop an obsolete comment in iomap_dio_bio_iter ext4: Do not fallback to buffered-io for DIO atomic write ext4: Support setting FMODE_CAN_ATOMIC_WRITE ext4: Check for atomic writes support in write iter ext4: Add statx support for atomic writes xfs: Support setting FMODE_CAN_ATOMIC_WRITE xfs: Validate atomic writes xfs: Support atomic write for statx fs: iomap: Atomic write support fs: Export generic_atomic_write_valid() block: Add bdev atomic write limits helpers fs/block: Check for IOCB_DIRECT in generic_atomic_write_valid() block/fs: Pass an iocb to generic_atomic_write_valid() |
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Linus Torvalds
|
7956186e75 |
vfs-6.13.tmpfs
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzcZIgAKCRCRxhvAZXjc oge4AQDxhsKW+v/jKHydzqzwG3Ks7DIxrUg/mcGfdtBwjiWgvwEA8t0QAAfKECAK B0+bNKJ8XJRUtZ10Jgm3dzURbEhBWgU= =4Lui -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.tmpfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull tmpfs case folding updates from Christian Brauner: "This adds case-insensitive support for tmpfs. The work contained in here adds support for case-insensitive file names lookups in tmpfs. The main difference from other casefold filesystems is that tmpfs has no information on disk, just on RAM, so we can't use mkfs to create a case-insensitive tmpfs. For this implementation, there's a mount option for casefolding. The rest of the patchset follows a similar approach as ext4 and f2fs. The use case for this feature is similar to the use case for ext4, to better support compatibility layers (like Wine), particularly in combination with sandboxing/container tools (like Flatpak). Those containerization tools can share a subset of the host filesystem with an application. In the container, the root directory and any parent directories required for a shared directory are on tmpfs, with the shared directories bind-mounted into the container's view of the filesystem. If the host filesystem is using case-insensitive directories, then the application can do lookups inside those directories in a case-insensitive way, without this needing to be implemented in user-space. However, if the host is only sharing a subset of a case-insensitive directory with the application, then the parent directories of the mount point will be part of the container's root tmpfs. When the application tries to do case-insensitive lookups of those parent directories on a case-sensitive tmpfs, the lookup will fail" * tag 'vfs-6.13.tmpfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: tmpfs: Initialize sysfs during tmpfs init tmpfs: Fix type for sysfs' casefold attribute libfs: Fix kernel-doc warning in generic_ci_validate_strict_name docs: tmpfs: Add casefold options tmpfs: Expose filesystem features via sysfs tmpfs: Add flag FS_CASEFOLD_FL support for tmpfs dirs tmpfs: Add casefold lookup support libfs: Export generic_ci_ dentry functions unicode: Recreate utf8_parse_version() unicode: Export latest available UTF-8 version number ext4: Use generic_ci_validate_strict_name helper libfs: Create the helper function generic_ci_validate_strict_name() |
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Linus Torvalds
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a5ca574796 |
vfs-6.13.usercopy
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzchMwAKCRCRxhvAZXjc okICAP4h6tDl7dgTv8GkL0tgaHi/36m+ilctXbEtIe9fbkc/fQD8D5t6jYaz47gu zVY7qOrtQOQ/diNavzxyky99Uh3dKgo= =lwkw -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.usercopy' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull copy_struct_to_user helper from Christian Brauner: "This adds a copy_struct_to_user() helper which is a companion helper to the already widely used copy_struct_from_user(). It copies a struct from kernel space to userspace, in a way that guarantees backwards-compatibility for struct syscall arguments as long as future struct extensions are made such that all new fields are appended to the old struct, and zeroed-out new fields have the same meaning as the old struct. The first user is sched_getattr() system call but the new extensible pidfs ioctl will be ported to it as well" * tag 'vfs-6.13.usercopy' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: sched_getattr: port to copy_struct_to_user uaccess: add copy_struct_to_user helper |
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Linus Torvalds
|
909d3b571e |
vfs-6.13.pidfs
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzcg9wAKCRCRxhvAZXjc ou7GAQDtQ75C+DFjrL4alXjYG7uly0BWgrlRJ4SgNu1I0uUYdgD/UHH2fAkQeKGy xTGT4z0abiELZw9RQ7F6qbiBhA0nIw8= =Plww -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull pidfs update from Christian Brauner: "This adds a new ioctl to retrieve information about a pidfd. A common pattern when using pidfds is having to get information about the process, which currently requires /proc being mounted, resolving the fd to a pid, and then do manual string parsing of /proc/N/status and friends. This needs to be reimplemented over and over in all userspace projects (e.g.: it has been reimplemented in systemd, dbus, dbus-daemon, polkit so far), and requires additional care in checking that the fd is still valid after having parsed the data, to avoid races. Having a programmatic API that can be used directly removes all these requirements, including having /proc mounted. As discussed at LPC24, add an ioctl with an extensible struct so that more parameters can be added later if needed. Start with returning pid/tgid/ppid and some creds unconditionally, and cgroupid optionally" * tag 'vfs-6.13.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: pidfd: add ioctl to retrieve pid info |
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Linus Torvalds
|
a29835c9d0 |
vfs-6.13.ovl
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Merge tag 'vfs-6.13.ovl' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull overlayfs updates from Christian Brauner:
"Make overlayfs support specifying layers through file descriptors.
Currently overlayfs only allows specifying layers through path names.
This is inconvenient for users that want to assemble an overlayfs
mount purely based on file descriptors:
This enables user to specify both:
fsconfig(fd_overlay, FSCONFIG_SET_FD, "upperdir+", NULL, fd_upper);
fsconfig(fd_overlay, FSCONFIG_SET_FD, "workdir+", NULL, fd_work);
fsconfig(fd_overlay, FSCONFIG_SET_FD, "lowerdir+", NULL, fd_lower1);
fsconfig(fd_overlay, FSCONFIG_SET_FD, "lowerdir+", NULL, fd_lower2);
in addition to:
fsconfig(fd_overlay, FSCONFIG_SET_STRING, "upperdir+", "/upper", 0);
fsconfig(fd_overlay, FSCONFIG_SET_STRING, "workdir+", "/work", 0);
fsconfig(fd_overlay, FSCONFIG_SET_STRING, "lowerdir+", "/lower1", 0);
fsconfig(fd_overlay, FSCONFIG_SET_STRING, "lowerdir+", "/lower2", 0);
There's also a large set of new overlayfs selftests to test new
features and some older properties"
* tag 'vfs-6.13.ovl' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
selftests: add test for specifying 500 lower layers
selftests: add overlayfs fd mounting selftests
selftests: use shared header
Documentation,ovl: document new file descriptor based layers
ovl: specify layers via file descriptors
fs: add helper to use mount option as path or fd
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Linus Torvalds
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4c797b11a8 |
vfs-6.13.file
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Merge tag 'vfs-6.13.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs file updates from Christian Brauner:
"This contains changes the changes for files for this cycle:
- Introduce a new reference counting mechanism for files.
As atomic_inc_not_zero() is implemented with a try_cmpxchg() loop
it has O(N^2) behaviour under contention with N concurrent
operations and it is in a hot path in __fget_files_rcu().
The rcuref infrastructures remedies this problem by using an
unconditional increment relying on safe- and dead zones to make
this work and requiring rcu protection for the data structure in
question. This not just scales better it also introduces overflow
protection.
However, in contrast to generic rcuref, files require a memory
barrier and thus cannot rely on *_relaxed() atomic operations and
also require to be built on atomic_long_t as having massive amounts
of reference isn't unheard of even if it is just an attack.
This adds a file specific variant instead of making this a generic
library.
This has been tested by various people and it gives consistent
improvement up to 3-5% on workloads with loads of threads.
- Add a fastpath for find_next_zero_bit(). Skip 2-levels searching
via find_next_zero_bit() when there is a free slot in the word that
contains the next fd. This improves pts/blogbench-1.1.0 read by 8%
and write by 4% on Intel ICX 160.
- Conditionally clear full_fds_bits since it's very likely that a bit
in full_fds_bits has been cleared during __clear_open_fds(). This
improves pts/blogbench-1.1.0 read up to 13%, and write up to 5% on
Intel ICX 160.
- Get rid of all lookup_*_fdget_rcu() variants. They were used to
lookup files without taking a reference count. That became invalid
once files were switched to SLAB_TYPESAFE_BY_RCU and now we're
always taking a reference count. Switch to an already existing
helper and remove the legacy variants.
- Remove pointless includes of <linux/fdtable.h>.
- Avoid cmpxchg() in close_files() as nobody else has a reference to
the files_struct at that point.
- Move close_range() into fs/file.c and fold __close_range() into it.
- Cleanup calling conventions of alloc_fdtable() and expand_files().
- Merge __{set,clear}_close_on_exec() into one.
- Make __set_open_fd() set cloexec as well instead of doing it in two
separate steps"
* tag 'vfs-6.13.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
selftests: add file SLAB_TYPESAFE_BY_RCU recycling stressor
fs: port files to file_ref
fs: add file_ref
expand_files(): simplify calling conventions
make __set_open_fd() set cloexec state as well
fs: protect backing files with rcu
file.c: merge __{set,clear}_close_on_exec()
alloc_fdtable(): change calling conventions.
fs/file.c: add fast path in find_next_fd()
fs/file.c: conditionally clear full_fds
fs/file.c: remove sanity_check and add likely/unlikely in alloc_fd()
move close_range(2) into fs/file.c, fold __close_range() into it
close_files(): don't bother with xchg()
remove pointless includes of <linux/fdtable.h>
get rid of ...lookup...fdget_rcu() family
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Linus Torvalds
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8dcf44fcad |
vfs-6.13.netfs
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Merge tag 'vfs-6.13.netfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull netfs updates from Christian Brauner:
"Various fixes for the netfs library and related infrastructure:
cachefiles:
- Fix a dentry leak in cachefiles_open_file()
- Fix incorrect length return value in
cachefiles_ondemand_fd_write_iter()
- Fix missing pos updates in cachefiles_ondemand_fd_write_iter()
- Clean up in cachefiles_commit_tmpfile()
- Fix NULL pointer dereference in object->file
- Add a memory barrier for FSCACHE_VOLUME_CREATING
netfs:
- Remove call to folio_index()
- Fix a few minor bugs in netfs_page_mkwrite()
- Remove unnecessary references to pages"
* tag 'vfs-6.13.netfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING
cachefiles: Fix NULL pointer dereference in object->file
cachefiles: Clean up in cachefiles_commit_tmpfile()
cachefiles: Fix missing pos updates in cachefiles_ondemand_fd_write_iter()
cachefiles: Fix incorrect length return value in cachefiles_ondemand_fd_write_iter()
netfs: Remove unnecessary references to pages
netfs: Fix a few minor bugs in netfs_page_mkwrite()
netfs: Remove call to folio_index()
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Linus Torvalds
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56be9aaf98 |
vfs-6.13.pagecache
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzcUQAAKCRCRxhvAZXjc onEpAQCUdwIBHpwmSIFvJFA9aNGpbLzi0dDSEIxuWYtp5qVuogD+ImccwqpG3kEi Zq9vokdPpB1zbahxKl1mkvBG4G0GFQE= =LbP6 -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.pagecache' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs pagecache updates from Christian Brauner: "Cleanup filesystem page flag usage: This continues the work to make the mappedtodisk/owner_2 flag available to filesystems which don't use buffer heads. Further patches remove uses of Private2. This brings us very close to being rid of it entirely" * tag 'vfs-6.13.pagecache' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: migrate: Remove references to Private2 ceph: Remove call to PagePrivate2() btrfs: Switch from using the private_2 flag to owner_2 mm: Remove PageMappedToDisk nilfs2: Convert nilfs_copy_buffer() to use folios fs: Move clearing of mappedtodisk to buffer.c |
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Linus Torvalds
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5bb6ba448f |
vfs-6.13.rust.file
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzcT8AAKCRCRxhvAZXjc or+CAQDb2JkNOVrugXw++kgvHrLBY+7rCzyA+sJhiZu7C7uQogEApQgGP1kjmpi0 f1wR6xomb9AmQNd991F0VWXCPBTUsAk= =RQnY -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.rust.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs rust file abstractions from Christian Brauner: "This contains the file abstractions needed by the Rust implementation of the Binder driver and other parts of the kernel. Let's treat this as a first attempt at getting something working but I do expect the actual interfaces to change significantly over time. Simply because we are still figuring out what actually works. But there's no point in further theorizing. Let's see how it holds up with actual users" * tag 'vfs-6.13.rust.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: rust: task: adjust safety comments in Task methods rust: add seqfile abstraction rust: file: add abstraction for `poll_table` rust: file: add `Kuid` wrapper rust: file: add `FileDescriptorReservation` rust: security: add abstraction for secctx rust: cred: add Rust abstraction for `struct cred` rust: file: add Rust abstraction for `struct file` rust: task: add `Task::current_raw` rust: types: add `NotThreadSafe` |
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Linus Torvalds
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70e7730c2a |
vfs-6.13.misc
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Merge tag 'vfs-6.13.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull misc vfs updates from Christian Brauner:
"Features:
- Fixup and improve NLM and kNFSD file lock callbacks
Last year both GFS2 and OCFS2 had some work done to make their
locking more robust when exported over NFS. Unfortunately, part of
that work caused both NLM (for NFS v3 exports) and kNFSD (for
NFSv4.1+ exports) to no longer send lock notifications to clients
This in itself is not a huge problem because most NFS clients will
still poll the server in order to acquire a conflicted lock
It's important for NLM and kNFSD that they do not block their
kernel threads inside filesystem's file_lock implementations
because that can produce deadlocks. We used to make sure of this by
only trusting that posix_lock_file() can correctly handle blocking
lock calls asynchronously, so the lock managers would only setup
their file_lock requests for async callbacks if the filesystem did
not define its own lock() file operation
However, when GFS2 and OCFS2 grew the capability to correctly
handle blocking lock requests asynchronously, they started
signalling this behavior with EXPORT_OP_ASYNC_LOCK, and the check
for also trusting posix_lock_file() was inadvertently dropped, so
now most filesystems no longer produce lock notifications when
exported over NFS
Fix this by using an fop_flag which greatly simplifies the problem
and grooms the way for future uses by both filesystems and lock
managers alike
- Add a sysctl to delete the dentry when a file is removed instead of
making it a negative dentry
Commit
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Linus Torvalds
|
4eb98b7760 |
vfs-6.13.mount.api
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzcTJQAKCRCRxhvAZXjc orndAP4gmY0BHtvXZoZiArqjvFIn5lELcRCPoXzYTlVlb2IQFQD9Gi3kMv5QUZBj bKCKNJb1MaXknT/psytR9llWlDTMeQw= =0/q1 -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.mount.api' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs mount api conversions from Christian Brauner: "Convert adfs, affs, befs, hfs, hfsplus, jfs, and hpfs to the new mount api" * tag 'vfs-6.13.mount.api' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: efs: fix the efs new mount api implementation ubifs: Convert ubifs to use the new mount API hpfs: convert hpfs to use the new mount api jfs: convert jfs to use the new mount api hfsplus: convert hfsplus to use the new mount api hfs: convert hfs to use the new mount api befs: convert befs to use the new mount api affs: convert affs to use the new mount api adfs: convert adfs to use the new mount api |
||
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Linus Torvalds
|
6ac81fd55e |
vfs-6.13.mgtime
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Merge tag 'vfs-6.13.mgtime' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs multigrain timestamps from Christian Brauner:
"This is another try at implementing multigrain timestamps. This time
with significant help from the timekeeping maintainers to reduce the
performance impact.
Thomas provided a base branch that contains the required timekeeping
interfaces for the VFS. It serves as the base for the multi-grain
timestamp work:
- Multigrain timestamps allow the kernel to use fine-grained
timestamps when an inode's attributes is being actively observed
via ->getattr(). With this support, it's possible for a file to get
a fine-grained timestamp, and another modified after it to get a
coarse-grained stamp that is earlier than the fine-grained time. If
this happens then the files can appear to have been modified in
reverse order, which breaks VFS ordering guarantees.
To prevent this, a floor value is maintained for multigrain
timestamps. Whenever a fine-grained timestamp is handed out, record
it, and when later coarse-grained stamps are handed out, ensure
they are not earlier than that value. If the coarse-grained
timestamp is earlier than the fine-grained floor, return the floor
value instead.
The timekeeper changes add a static singleton atomic64_t into
timekeeper.c that is used to keep track of the latest fine-grained
time ever handed out. This is tracked as a monotonic ktime_t value
to ensure that it isn't affected by clock jumps. Because it is
updated at different times than the rest of the timekeeper object,
the floor value is managed independently of the timekeeper via a
cmpxchg() operation, and sits on its own cacheline.
Two new public timekeeper interfaces are added:
(1) ktime_get_coarse_real_ts64_mg() fills a timespec64 with the
later of the coarse-grained clock and the floor time
(2) ktime_get_real_ts64_mg() gets the fine-grained clock value,
and tries to swap it into the floor. A timespec64 is filled
with the result.
- The VFS has always used coarse-grained timestamps when updating the
ctime and mtime after a change. This has the benefit of allowing
filesystems to optimize away a lot metadata updates, down to around
1 per jiffy, even when a file is under heavy writes.
Unfortunately, this has always been an issue when we're exporting
via NFSv3, which relies on timestamps to validate caches. A lot of
changes can happen in a jiffy, so timestamps aren't sufficient to
help the client decide when to invalidate the cache. Even with
NFSv4, a lot of exported filesystems don't properly support a
change attribute and are subject to the same problems with
timestamp granularity. Other applications have similar issues with
timestamps (e.g backup applications).
If we were to always use fine-grained timestamps, that would
improve the situation, but that becomes rather expensive, as the
underlying filesystem would have to log a lot more metadata
updates.
This adds a way to only use fine-grained timestamps when they are
being actively queried. Use the (unused) top bit in
inode->i_ctime_nsec as a flag that indicates whether the current
timestamps have been queried via stat() or the like. When it's set,
we allow the kernel to use a fine-grained timestamp iff it's
necessary to make the ctime show a different value.
This solves the problem of being able to distinguish the timestamp
between updates, but introduces a new problem: it's now possible
for a file being changed to get a fine-grained timestamp. A file
that is altered just a bit later can then get a coarse-grained one
that appears older than the earlier fine-grained time. This
violates timestamp ordering guarantees.
This is where the earlier mentioned timkeeping interfaces help. A
global monotonic atomic64_t value is kept that acts as a timestamp
floor. When we go to stamp a file, we first get the latter of the
current floor value and the current coarse-grained time. If the
inode ctime hasn't been queried then we just attempt to stamp it
with that value.
If it has been queried, then first see whether the current coarse
time is later than the existing ctime. If it is, then we accept
that value. If it isn't, then we get a fine-grained time and try to
swap that into the global floor. Whether that succeeds or fails, we
take the resulting floor time, convert it to realtime and try to
swap that into the ctime.
We take the result of the ctime swap whether it succeeds or fails,
since either is just as valid.
Filesystems can opt into this by setting the FS_MGTIME fstype flag.
Others should be unaffected (other than being subject to the same
floor value as multigrain filesystems)"
* tag 'vfs-6.13.mgtime' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
fs: reduce pointer chasing in is_mgtime() test
tmpfs: add support for multigrain timestamps
btrfs: convert to multigrain timestamps
ext4: switch to multigrain timestamps
xfs: switch to multigrain timestamps
Documentation: add a new file documenting multigrain timestamps
fs: add percpu counters for significant multigrain timestamp events
fs: tracepoints around multigrain timestamp events
fs: handle delegated timestamps in setattr_copy_mgtime
timekeeping: Add percpu counter for tracking floor swap events
timekeeping: Add interfaces for handling timestamps with a floor value
fs: have setattr_copy handle multigrain timestamps appropriately
fs: add infrastructure for multigrain timestamps
|
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Linus Torvalds
|
adc218676e | Linux 6.12 | ||
|
Linus Torvalds
|
f66d6acccb |
- Make sure a kdump kernel with CONFIG_IMA_KEXEC enabled and booted on an AMD
SME enabled hardware properly decrypts the ima_kexec buffer information passed to it from the previous kernel - Fix building the kernel with Clang where a non-TLS definition of the stack protector guard cookie leads to bogus code generation - Clear a wrongly advertised virtualized VMLOAD/VMSAVE feature flag on some Zen4 client systems as those insns are not supported on client -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmc54zkACgkQEsHwGGHe VUplzw//d1ysRrT+YNFwQrvGUc6mjP3dtOo2NCBxKhgvC2OKzDlj8ZIx20Yn97At pboOPbewV+cCSd7PXo9ymNsJMjFD0NAyKasRaHhUEGU6/AvQ2EwwN7d6q444HFso eIFLak17zha1VhSyu0ozZJSWjUbebwBcI2I3Re5VzJXGzBybw2nLM/PPQn94tsAQ w6ag0Ol+VbIPd/EdMOcRI1VXeFl44V5kiAYNvCunBvpTae9i/pC/k7iHW6tWDJUu Ud0hpIsq/Rn9Bj2oG/ovz1CvlcEryhL23HpQFyj/C1Gwl3fjpSqWUDm8U366VIVV I0EFSpYpH7CD9ArL37R6ziaCH1yojMcrXZSu1kjtc9rPFoqmcxOBkW0dVidWwKv4 3hFVrWMkFm/qMW+SPss7ZX48z87bnAwplQpgF/sFBeHJSXr909ne3nOdPAS8Hp4t 5VMGQkXWQCWGgRNxAqpU8pZaPKsvuFvJIJg6B6JcDe/qSv3i78geg64lT2WNhs2m AGH/E+ERF3X5jaPn/2oRXc6o9Kfmoy0+QLE4UvLVGunhE8ZNK0Zg3097Dn7N1flR ayhAt6otgeksiRpskfCtnxlfZoWIwnS0ueVkb0qJDS+1PWlMkk48cvxwpikEn6rD ebCllm8dBysnxgyf+Mf2rKsDbsnrICT7olPr1MTuEUHwf6Uqs5Q= =5i7R -----END PGP SIGNATURE----- Merge tag 'x86_urgent_for_v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Borislav Petkov: - Make sure a kdump kernel with CONFIG_IMA_KEXEC enabled and booted on an AMD SME enabled hardware properly decrypts the ima_kexec buffer information passed to it from the previous kernel - Fix building the kernel with Clang where a non-TLS definition of the stack protector guard cookie leads to bogus code generation - Clear a wrongly advertised virtualized VMLOAD/VMSAVE feature flag on some Zen4 client systems as those insns are not supported on client * tag 'x86_urgent_for_v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm: Fix a kdump kernel failure on SME system when CONFIG_IMA_KEXEC=y x86/stackprotector: Work around strict Clang TLS symbol requirements x86/CPU/AMD: Clear virtualized VMLOAD/VMSAVE on Zen4 client |
||
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Linus Torvalds
|
4a5df37964 |
10 hotfixes, 7 of which are cc:stable. All singletons, please see the
changelogs for details. -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZzkr6AAKCRDdBJ7gKXxA jsb2AP9HCOI4w9rQTmBdnaefXytS7fiiPq+LVNpjJ0NGXX2FSgD/e1NM0wi8KevQ npcvlqTcXtRSJvYNF904aTNyDn+Kuw0= =KFGY -----END PGP SIGNATURE----- Merge tag 'mm-hotfixes-stable-2024-11-16-15-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull hotfixes from Andrew Morton: "10 hotfixes, 7 of which are cc:stable. All singletons, please see the changelogs for details" * tag 'mm-hotfixes-stable-2024-11-16-15-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: mm: revert "mm: shmem: fix data-race in shmem_getattr()" ocfs2: uncache inode which has failed entering the group mm: fix NULL pointer dereference in alloc_pages_bulk_noprof mm, doc: update read_ahead_kb for MADV_HUGEPAGE fs/proc/task_mmu: prevent integer overflow in pagemap_scan_get_args() sched/task_stack: fix object_is_on_stack() for KASAN tagged pointers crash, powerpc: default to CRASH_DUMP=n on PPC_BOOK3S_32 mm/mremap: fix address wraparound in move_page_tables() tools/mm: fix compile error mm, swap: fix allocation and scanning race with swapoff |
||
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Andrew Morton
|
d1aa0c0429 |
mm: revert "mm: shmem: fix data-race in shmem_getattr()"
Revert |
||
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Linus Torvalds
|
b84eeed05a |
ARM fixes for v6.12
- Fix kernel mapping for XIP kernels - Fix SMP support for XIP kernels - Fix complication corner case with CFI - Fix a typo in nommu code - Fix cacheflush syscall when PAN is enabled on LPAE platforms -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEuNNh8scc2k/wOAE+9OeQG+StrGQFAmc5F/UACgkQ9OeQG+St rGQBRg/+P9YMx0MZTV8y5B92yAzOk28QW303f8PWzoTXMiQ1nhMFUhk/TFMaeSxs 6CJfQ+W5S+N9X1hG8XAlBPZruX5GWKXScS1By4J/sBwTXmIomnkeL6SwQRULF63v C/dcFWd9avKo2XnZIhQ8mduczR17MoagXxq6kpLvgaLJ6C/b6XJQ+SwqtuGXuJtz NpPrU0hSLOZdfGHQC6jyIhWObgNEX+Li8EZorynOAYiy90sYUgpffAsL/qWUV+cM VF/cK+BYkvShxChj6rvcv7vlbGBUaV2DhRIdXe4AxD2hkX3cUmLG+10YQ7pq/gb0 722w7ZsBRXXFnlKle3vPzf4upWdMJEQ1SM3z6nYcZ8JTK9rGIxvAlt4PhFc6iw/v 2AF3WSXhbdRg1+6kK5Q/fsga40BtXbL/3pS/5Q57MZfrmF/0PYVdFRvKJQuRVvxC +FiWTDKuR7yTSK9/5hx+2W6WDjuDvoFeMBo4n9GyqdajIpi13dUminE/KdCTuz57 OefDS7SGfUlnWj6JAUbF+hg0/Loij5KldZbmQDWLeU2/LTx3UMUMNZ6RLATQ33tT +aMnrxwEd2qPXNhlC/hAz/PR5tt14w2jlEK+1x4S5siW6vi4+8F6KfcycZFzkVHI gqRNhG//mmpnCzK7FU5q0Od0GrM1zpYhhnAXm92QPP4zJp1R0s8= =yhjm -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux Pull ARM fixes from Russell King: - Fix kernel mapping for XIP kernels - Fix SMP support for XIP kernels - Fix complication corner case with CFI - Fix a typo in nommu code - Fix cacheflush syscall when PAN is enabled on LPAE platforms * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux: ARM: fix cacheflush with PAN ARM: 9435/1: ARM/nommu: Fix typo "absence" ARM: 9434/1: cfi: Fix compilation corner case ARM: 9420/1: smp: Fix SMP for xip kernels ARM: 9419/1: mm: Fix kernel memory mapping for xip kernels |
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Linus Torvalds
|
e06bc45bef |
drm/amdgpu regression fix for 6.12-rc8
amdgpu: - revert patch to fix swsmu regression -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmc5GYcACgkQDHTzWXnE hr4YmQ//elGWAiHa8X126Mx74bALJMcAApzfLclVguyqSuNGvTiGqMnc0eM2c/JA InhVUzH+OZfrVA0/XJCrrsVa6urRGW9vDGUZlWwwSdWagJ0bKtYRMX0++ptIplwJ eDWMludS1vwfDlwFNpt4egkLAc69hJRUWIejL1bQP5SN9BfluCAlRz8Pe4L9ROER uzQzPr02cgR2jbGHbZ6Z5A+1Jz01Q3CVcn6HFqIOUbEkH9rZotIlyIH9OnX3w0DL JEckIFIs9nTRCvfyJpLtPkCZW0MEFFO0xxIB1saSTpHcZjPdZ7EUxAvVcBo+mg+5 ezteYl/LWh1nWJYvScGn4fQ7P7Otv910oucChU5f0XjzzgJIhYdS8qTuFiByUgKs 8r+EqSUtF/zqzy/pvYDIxeBzkQYITRji4UtTx1TGD3rUH5gYMWvOpjzpt0IneXIv m0Diq5+2ZLQGXT4wsvbB4swqNY9lmAktD66dGTPNKG5UrMKXzWMaehpdA5lrF13e 2MXpFNhxi6LZK5+urdAQn8OTjmmxijI7B73nfPQwpHpIC8ObMi0IqMNM8sr1LLBr opu6692z9C3zIfxvJDJsAbe/O89i+DOVVr1TCRxPGucqxs2UwGlBMp0LzrJ13kBi gqMdRS0lQW17w0ntuBqH224QiXfAayLstMTY1o76tzV2aaTVDuo= =gFiR -----END PGP SIGNATURE----- Merge tag 'drm-fixes-2024-11-17' of https://gitlab.freedesktop.org/drm/kernel Pull drm fix from Dave Airlie: "Alex sent on a last minute revert for a amdgpu/swsmu regression: - revert patch to fix swsmu regression" * tag 'drm-fixes-2024-11-17' of https://gitlab.freedesktop.org/drm/kernel: Revert "drm/amd/pm: correct the workload setting" |
||
|
Dave Airlie
|
f48ab0a39f |
amd-drm-fixes-6.12-2024-11-16:
amdgpu: - Revert a swsmu patch to fix a regression -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQQgO5Idg2tXNTSZAr293/aFa7yZ2AUCZzivywAKCRC93/aFa7yZ 2DjYAQD507C9yHfjLWMrpqQIQsnMK5XRobiq8Fdqcu6iDkS8aQEAjM6a7pCIkjpE Q3vlFgcJcEGUrynDL7T+jVOIXLn8FAM= =bM6j -----END PGP SIGNATURE----- Merge tag 'amd-drm-fixes-6.12-2024-11-16' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes amd-drm-fixes-6.12-2024-11-16: amdgpu: - Revert a swsmu patch to fix a regression Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241116145320.2507156-1-alexander.deucher@amd.com |
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Linus Torvalds
|
b5a24181e4 |
Ring buffer fixes for 6.12:
- Revert: "ring-buffer: Do not have boot mapped buffers hook to CPU hotplug" A crash that happened on cpu hotplug was actually caused by the incorrect ref counting that was fixed by commit |
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Alex Deucher
|
44f392fbf6 |
Revert "drm/amd/pm: correct the workload setting"
This reverts commit |
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Linus Torvalds
|
e8bdb3c8be |
A Single RISC-V Fix for 6.12-rc8
* A fix for the CPU perf driver that avoids leaking CPU ID references on systems without snapshot support. -----BEGIN PGP SIGNATURE----- iQJHBAABCAAxFiEEKzw3R0RoQ7JKlDp6LhMZ81+7GIkFAmc3avsTHHBhbG1lckBk YWJiZWx0LmNvbQAKCRAuExnzX7sYiZUOD/44STXrS9mFLeBsizeEB8pX7GKoJ2FT Tcctcm4Or2sFeS22WNljtxHH8ozMPrhd++GogAJ91yO46WUzmjJ01skIKZFHkB+S VNFqwzJ+rm5l2NNCyhzO+xLxVrwWPWqY3E1rK5ta3UpaEqkBOOgW8zNHvvppOA9d tU/7yFVF/O8wZ8cXakGQCMNe4bZc8ZOM+rUTpBZLb3fne+BvUr+uanNkB9Py8Nl5 PBD1OhFCg9M4wZ5MCw3yFS2/D2LCSGHVOYI8H71wcZvcqOA0qGll+LSVugMh4ZWN HX81lx8XY+nC8xz3OvwjnPZvQwyW/HU8jq+EaJEycH3axAscdZmXsi8pWGn8H0Ho WKeJbbNnmm9pfxJvhqdic0ghmAaX3uHWQLd+MriQjMbsOcA0+5XMHuEfaZuLDZ2o dZa9uvqdXIchHr1vg/gxrZvJueMfaChCuWMt+sEmQ4C+YlWBo1TMXKxHzVzb27nJ EdsAsxKRzzzUkaOdXL5LNTjlO5Xtt7BzF4k5g2GuwyYACPqbQZpzQUJLfPf+0ZgR s34eQSWeyuxxZMzK224hZDemQcX5bSXBR7nRo+aLsyJq75SJ5NBd4BsW2Ei6GN/P WItbkly3uAa/MrDv7X/Jj+ZVZVTRzk7y3mmZZLkORoAtJab8/0tNaLULk/p8X6qH zGyh6UY8C0DHZg== =nXVF -----END PGP SIGNATURE----- Merge tag 'riscv-for-linus-6.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fix from Palmer Dabbelt: - A fix for the CPU perf driver that avoids leaking CPU ID references on systems without snapshot support. * tag 'riscv-for-linus-6.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: drivers: perf: Fix wrong put_cpu() placement |
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Linus Torvalds
|
f868cd2517 |
drm fixes for 6.12-rc8
amdgpu: - PSR fix - Panel replay fixes - DML fix - vblank power fix - Fix video caps - SMU 14.0 fix - GPUVM fix - MES 12 fix - APU carve out fix - DC vbios fix - NBIO fix i915: - Don't load GSC on ARL-H and ARL-U if too old FW - Avoid potential OOPS in enabling/disabling TV output xe: - Fix unlock on exec ioctl error path - Fix hibernation on LNL due to ggtt getting lost - Fix missing runtime PM in OA release bridge: - tc358768: Fix DSI command tx nouveau: - Fix GSP AUX error handling - dp: Handle retires for AUX CH transfers with GSP - fw: Sync DMA after setup panthor: - Fix partial BO mappings to GPU rockchip: - vop: Avoid null-ptr deref in plane-state check vmwgfx: - Avoid null-ptr deref in surface creation -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmc3lU8ACgkQDHTzWXnE hr4u+Q/9GalCWjR6gCAgM2Rbm3h4M0FdkU0rDoVs1O5lFd6EPlTCAUFskVhmmgR7 oRYu04Q5MO/nT9CWx3mpGAh28FRTJEI6sVZG2fOcCuEyyZ7GSa6MKvDSq/IrVRU/ j05M4pFOHGH0z7sa8tDhYcgfP24W5cT+j5COjb9OW2ULd+I+Hf6sPA+h1ziDbZZA NsD+VENemt1KVRzCiNe330IImG/LaGjz304T8G991i5oJLFsOpFRuaMJo7mKOEHg BJAH/F8PZA6uzWtr3WIF4x8jZGTWftr0aHtfzIM716cTaMQfkKnr/15iQDkAEstI E4U6IZspPZ8+OPe7BBTPznd+JHhZi+V33kZt1cQWaM3bcTeQwEtEngYzNKEpDrjB gajl7rZZcaE1bLtDxkxT6E6HMNCSaaUlQ+kxoBJnlaGp2CsceuWPPyb6SXimn2Kh 99bXI5tXLP/VYTN3rX6nctElyJbGF1wxlp8SPoVBL2+TS2DDZm4JEjJsljS7p2YX x+lxhcDp8xNd0IYyuWjxht5qAJdUdinX5E2X27gGdac3051vYw6VE4Xd/fzTqV1h kK0qbrhZjMWQU/2vngFaXReb3h8H0qct9hUM69012EKIlgLQR2NYfEuSkdSaQi7V aMh+9D45puhsUAhWZQa07tnB+Z59KytRNInmP4i7U2PF3CLZSlw= =6Ltb -----END PGP SIGNATURE----- Merge tag 'drm-fixes-2024-11-16' of https://gitlab.freedesktop.org/drm/kernel Pull drm fixes from Dave Airlie: "Final week of fixes, lots of small amdgpu fixes, some i915 and xe fixes, the nouveau changes fix a recent regression and some laptop panel black screens, then a couple of other misc ones. It's probably a little busier than I'd like, but each fix seems fine. amdgpu: - PSR fix - Panel replay fixes - DML fix - vblank power fix - Fix video caps - SMU 14.0 fix - GPUVM fix - MES 12 fix - APU carve out fix - DC vbios fix - NBIO fix i915: - Don't load GSC on ARL-H and ARL-U if too old FW - Avoid potential OOPS in enabling/disabling TV output xe: - Fix unlock on exec ioctl error path - Fix hibernation on LNL due to ggtt getting lost - Fix missing runtime PM in OA release bridge: - tc358768: Fix DSI command tx nouveau: - Fix GSP AUX error handling - dp: Handle retires for AUX CH transfers with GSP - fw: Sync DMA after setup panthor: - Fix partial BO mappings to GPU rockchip: - vop: Avoid null-ptr deref in plane-state check vmwgfx: - Avoid null-ptr deref in surface creation" * tag 'drm-fixes-2024-11-16' of https://gitlab.freedesktop.org/drm/kernel: (27 commits) drm/bridge: tc358768: Fix DSI command tx drm/vmwgfx: avoid null_ptr_deref in vmw_framebuffer_surface_create_handle nouveau/dp: handle retries for AUX CH transfers with GSP. nouveau: handle EBUSY and EAGAIN for GSP aux errors. nouveau: fw: sync dma after setup is called. drm/xe/oa: Fix "Missing outer runtime PM protection" warning drm/xe: handle flat ccs during hibernation on igpu drm/xe: improve hibernation on igpu drm/xe: Restore system memory GGTT mappings drm/xe: Ensure all locks released in exec IOCTL drm/panthor: Fix handling of partial GPU mapping of BOs drm/amd: Fix initialization mistake for NBIO 7.7.0 Revert "drm/amd/display: parse umc_info or vram_info based on ASIC" drm/amd/display: Fix failure to read vram info due to static BP_RESULT drm/amdgpu: enable GTT fallback handling for dGPUs only drm/i915: Grab intel_display from the encoder to avoid potential oopsies drm/i915/gsc: ARL-H and ARL-U need a newer GSC FW. drm/amdgpu/mes12: correct kiq unmap latency drm/amdgpu: fix check in gmc_v9_0_get_vm_pte() drm/amd/pm: print pp_dpm_mclk in ascending order on SMU v14.0.0 ... |
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Linus Torvalds
|
f539573284 |
RDMA v6.12 third rc pull
- Revert a change to the VLAN logic, this broke previously work ROCE configurations - Fix a memory leak on error unwinding in bnxt_re -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRRRCHOFoQz/8F5bUaFwuHvBreFYQUCZzdj8AAKCRCFwuHvBreF YcsYAQCEv9kx5iw+Z0hoAyUw4a8nXZN75FMQZuQqJNfQAdhexgD+MorBq4RgZgD8 EIHxQPMyK0S9dlS12J55yVDu72dZ8gg= =H/X8 -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma Pull rdma fixes from Jason Gunthorpe: - Revert a change to the VLAN logic, this broke previously working ROCE configurations - Fix a memory leak on error unwinding in bnxt_re * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: Revert "RDMA/core: Fix ENODEV error for iWARP test over vlan" RDMA/bnxt_re: Remove some dead code RDMA/bnxt_re: Fix some error handling paths in bnxt_re_probe() |
||
|
Dave Airlie
|
21c1c6c7d7 |
Driver Changes:
- Fix unlock on exec ioctl error path (Matthew Brost) - Fix hibernation on LNL due to ggtt getting lost (Matthew Brost / Matthew Auld) - Fix missing runtime PM in OA release (Ashutosh) -----BEGIN PGP SIGNATURE----- iQJNBAABCAA3FiEE6rM8lpABPHM5FqyDm6KlpjDL6lMFAmc2jg4ZHGx1Y2FzLmRl bWFyY2hpQGludGVsLmNvbQAKCRCboqWmMMvqU/gxD/4xKW6qHJe3S9UwfIR7CPtw myrcxfwHG5ryzZsmGh6mwaFxYdGQ4ibdWAKZGF0NrZUsKig+8ADRRE7PoOyyZDV9 0uZ8lOIMPfMPZ8tHvQHbu7l/8LGXcV/R27ts7Rr9vGr2Ox8/5NTGtzykhUDb2xiO qZS4BPF/uuis9MLJRwoAiI2vwrUfFg16To+1NX3rmtBvzbH4DdY9l7QQV5B+22Rc UDQVRAUTXl3ER7TtwwVsHzuctsWJb/5H+1vM6QNIltWWTXPBA8qVC9092SwIWOoF 7c4Ap440V8AHyjjnzSM0N2rO86L6Mo5QY04gv4y7dywKHT+JW95QNWKPizJJeIHd to62AQdlVDCLQqc4jEpIPEorF5wP/qw8Polwa4eTlsGpGMoUkcRVEXO8JA8Rd7Rt EtHWb+ZFproBYtAvrCUyUMlmaviLK+eMsEaNlt+uQqQP3ZAfPvcItcxtSXn3Jsfw 47v/jvP3OddZgOmPHqo1jfZBqACfKt1trqSg2YYOwfGLaZ+KhgZz7rw8n5WKSmyK XEa5y9stffM/3g9PIvroVQc/INAhS++WhXnGRZ/fcxQrFrKQ7sFMXFUs1OUbgv7j GUVZ4V/BGJy/o58bblSla/NSwiX2bHB4d8grS5rtKMMNe9PxgG3ldn8YG4cFADmP NnR/YsBOf1mjvfdiUUMmxQ== =VWVg -----END PGP SIGNATURE----- Merge tag 'drm-xe-fixes-2024-11-14' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes Driver Changes: - Fix unlock on exec ioctl error path (Matthew Brost) - Fix hibernation on LNL due to ggtt getting lost (Matthew Brost / Matthew Auld) - Fix missing runtime PM in OA release (Ashutosh) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/5ntcf2ssmmvo5dsf2mdcee4guwwmpbm3xrlufgt2pdfmznzjo3@62ygo3bxkock |
||
|
Linus Torvalds
|
1b597e1cf0 |
pmdomain core:
- Add GENPD_FLAG_DEV_NAME_FW flag to generate unique names pmdomain providers: - arm: Use FLAG_DEV_NAME_FW to ensure unique names - imx93-blk-ctrl: Fix the remove path arm_scmi/qcom-cpucp: - Report duplicate OPPs as firmware bugs for arm_scmi - Skip OPP duplicates for arm_scmi - Mark the qcom-cpucp mailbox irq with IRQF_NO_SUSPEND flag -----BEGIN PGP SIGNATURE----- iQJLBAABCgA1FiEEugLDXPmKSktSkQsV/iaEJXNYjCkFAmc3I+wXHHVsZi5oYW5z c29uQGxpbmFyby5vcmcACgkQ/iaEJXNYjCmsYw/+PphbBhA6Tu1SjSwpkxx0QNBr isc0DSwRG+iVfnwpeBB9lS5yLNwltbe8goZAVZYcFUdrCPs+OX5HZimFklAAufFh X/S5Ge3MyXwiRjwwyz04wMl8SF2W4P90cLC9w8hB85dJ0/lhgTLCbi//eHXHQKkq hzsVpusO4t+wa2HoTjdq6rqlSKW2NdUyZxrCWLDWaXrbqnBL0yJRs1rn2034w/qi RannE36bm8YUTBgyiayViEGWC73VUtxB07oSn8Qq9dYzwjIUqVpqoBBQiJL4VCFR /147/40rcq7T7B8qp9/3S82EV9vX26VAa/gUDDosb/RoB9XbBtx04QPBaHPiVitf 6kjqn6vD+F+jap+u7i0Q4PMvdfmSUfVeqbEx5ED3rpAbzfBazgyO4e3JAGFZOvqj M6YP8i6mSmTOUZbkuF1dwmD9DtuoySaWzTrwUFluu8VMykTo/F8GqkeZXPIKg9CO H+OXq81+btVOwXZ/HFRQPNVXY8Q7gQIQAsLoAW8QqXxzFJ8ovYHs0voT4KPXeWzu 56dWATJ6uh6P+zjIbWDDsg9m/tXhH5CGoRpn33OkhIBYnsSnoTDF6h4mVGr4K6Zn W+uPS+Xg6nbXxaZHomJG3dDSpRWUA1FNVwiLZbnbvEBi5aU7FwdZNc8MCV6h5DOw zaOeRa1zHz8F2K4l8z0= =pPcz -----END PGP SIGNATURE----- Merge tag 'pmdomain-v6.12-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm Pull pmdomain fixes from Ulf Hansson: "pmdomain core: - Add GENPD_FLAG_DEV_NAME_FW flag to generate unique names pmdomain providers: - arm: Use FLAG_DEV_NAME_FW to ensure unique names - imx93-blk-ctrl: Fix the remove path arm_scmi/qcom-cpucp: - Report duplicate OPPs as firmware bugs for arm_scmi - Skip OPP duplicates for arm_scmi - Mark the qcom-cpucp mailbox irq with IRQF_NO_SUSPEND flag" * tag 'pmdomain-v6.12-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm: mailbox: qcom-cpucp: Mark the irq with IRQF_NO_SUSPEND flag firmware: arm_scmi: Report duplicate opps as firmware bugs firmware: arm_scmi: Skip opp duplicates pmdomain: imx93-blk-ctrl: correct remove path pmdomain: arm: Use FLAG_DEV_NAME_FW to ensure unique names pmdomain: core: Add GENPD_FLAG_DEV_NAME_FW flag |
||
|
Linus Torvalds
|
aa35f5446f |
MMC host:
- dw_mmc: Revert fix for IDMAC operation with pages bigger than 4K - sunxi-mmc: Fix A100 compatible description -----BEGIN PGP SIGNATURE----- iQJLBAABCgA1FiEEugLDXPmKSktSkQsV/iaEJXNYjCkFAmc3GvwXHHVsZi5oYW5z c29uQGxpbmFyby5vcmcACgkQ/iaEJXNYjCknhw/6ArBr62dUObrZ0NgDcqm56hwa NgS0iwinhDZ3h8hM2xgumQ+IDcTAFNxMbcxgmjXPZ38vP9WRy1Una0iRUQrpH8g5 vxFvA0oThQ+2jH54CFvyIcb6QCvKfNGfVsgkmDZKc/uIZc3TfLHdZzbwLT8EXsSv 6lLyFXaQVJD2rFYfGXHqDGOwsSLrRea4Vi6g+lqg/SVoxUQsaH0/h5oKHHcUn3ud asuCB34loeLuXiLmduFEBjeCaIABq/ISzTS4IP5lf7hhzEeaMA1QF2YWQMun/LrU XnfGXjU2jTYY85b4hrFBr5+dBlyAmUuKVhYY0/HBhTKtRLJunxzNto28JZgmYX9z DaEBOkobP13fPoUOKje09pnE3V8sRgAVkanz/fIS+rNe1RR2UI2OdDJWCRn1Ee0O 3ougZrqNvW1RokszqHlCKdAZiZNnEuS3IFlDpNK4Qg3eLSULQjRJie7eFBhqxe/n odsoAyPrg/qaN4QNMa4ta7qdqrw9Fma5R6ijuCGnY2CGF/9XyMYx1mpTZX5ZZlFN mMdTvr+EQQuj9FimA16Zo4JefHviDE9/aSuSsxsUxwGrMRVi+hOlswvU3/gjxFzl A265luWomDfmeRUf5rfbjTEMr6m2a4VP+zghA0OkaXwro3/r3HT/R9EMRPIDM+wD jw2IWfOqZcHpOWdK2D4= =bXBC -----END PGP SIGNATURE----- Merge tag 'mmc-v6.12-rc3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC host fixes from Ulf Hansson: - dw_mmc: Revert fix for IDMAC operation with pages bigger than 4K - sunxi-mmc: Fix A100 compatible description * tag 'mmc-v6.12-rc3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: Revert "mmc: dw_mmc: Fix IDMAC operation with pages bigger than 4K" mmc: sunxi-mmc: Fix A100 compatible description |
||
|
Linus Torvalds
|
eeae5ef6bf |
sound fixes for 6.12
A few last-minute fixes. All changes are device-specific small fixes that should be pretty safe to apply. -----BEGIN PGP SIGNATURE----- iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAmc2IUEOHHRpd2FpQHN1 c2UuZGUACgkQLtJE4w1nLE/vqhAA0m5OhLPRJU3O4t8LVlaJKzRm8mS39jJ7bnpP I116NxZTtyS840CJbb5/731XCrS8IRz1RlqY6Ex9Y7kAnCK05h9R+vEw6RSH13rJ XZgaAzK4qssx0x9Y/kd62x+/cRTLKPQHFtpJYzc2GYAZqrEovH4VHZxXfwtOd9HY fVCXt2Bv7tzT3ZP9/3rq8QMEM4c+al3voB9EnIsL/4YMBLSkO17hFi8NlLjGiBCz 6shh1y/3JeBqVq/pj4E6xvy5ba+GUJI5h/oxxqaEF0u7AwaZbg+p6GF+yZJSybP2 Ry3y6lpU8gN51ZN5B6HVdgDkTLJoWTqFPgAu4purywmpJ0NAF/T7cE/uizNOdX3F 4l3PTwll+4MFMmKTA1MElVYTlVj/ogOm1DbeZfovtwJoQEs0xP3DJS0TVFdZtKGr nISdQHyZ23mV/8UHq6eHKQjM4sK3BFJQJptCT9vYp3H7k6bPdntCG8dJLGTnZTCW nPmDRfvh8hh95kYXHfPdtP52btoG/Kd5L5104ta9tfqRgsbze0mawxFph3qUyHEn cpjq/XOgzt2prFlaZGBHMw46/62XlQ1lEZ8hSrdi9bRIZiSibeGr4FncRqBJBlTI iahMBlxPEEt1D8wglc3YAQIFPR0dvfEjpm6uSCtu2Il+DS1V6J1SjfFhsL2At3PT Ee5ero8= =Erlm -----END PGP SIGNATURE----- Merge tag 'sound-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "A few last-minute fixes. All changes are device-specific small fixes that should be pretty safe to apply" * tag 'sound-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda/realtek - update set GPIO3 to default for Thinkpad with ALC1318 ALSA: hda/realtek: fix mute/micmute LEDs for a HP EliteBook 645 G10 ALSA: hda/realtek - Fixed Clevo platform headset Mic issue ALSA: usb-audio: Fix Yamaha P-125 Quirk Entry ASoC: max9768: Fix event generation for playback mute ASoC: intel: sof_sdw: add quirk for Dell SKU ASoC: audio-graph-card2: Purge absent supplies for device tree nodes |
||
|
Linus Torvalds
|
842c7e5834 |
This push fixes a regression in the MIPS CRC32C code.
-----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEn51F/lCuNhUwmDeSxycdCkmxi6cFAmccju4ACgkQxycdCkmx i6db/BAAyqJ3joT62295GBRcgFMn+nZe/1Tq4jkFAj7saoCzFRn70SWu0nq3Zaed xaQNl5BePD57ySUtsGm80qTISxOSE3zJ3c1S2vSisO6pjryMGuUFI1nPynD5sFz8 O+GMQB85qtZMOQZUtNQ6kt3gugGdoIvdgM0D/mG4qhRa5H6EeagV7rL+h89AAQ1M c+ggOxpX2RKFFNsw+7xBjlIEMnYtl+Qq5ifgp5wUGetbQwUhWBF9lwBm7OV06Dp5 pnwQt2ctw2D12ZFyG25ncHHjf3ZzEuNU75SWyJQT+MuAO+4eSAplAr+MwvOytwqc bxeWz5T4qfV3RqFCVJMpTzYrBG6jgUZrvUA1s4NNCXi07YhakZIlKcCql0tGAlkN xg2MQxlwp0vmlayzq6PcT0zem8/pr0hvEUGl6FOTq1yCuRnUpre/kAIJY5QdQ/P7 TJ1KczyOJL56VEYwFEWmIFWKdz/XDmJxehiQVvFHOBA89zxsNv3/+oH6knMXEFXl nmRwCDIjtZTv0QORL3h/odULwSxa6cN56+MrooIlrsDBDAajCXAj8lwBatgmI1QT sCo1z2GMWQZ2j9R5nfyZRdrwIn8LXMozzRd/cfBkVi7hn7Mp8bz3xDOtK8TFik7l iYmekMXH7itafm8yhDstLbk2dmymmk3+Gk41qr83vrAVZXk3YjY= =GphV -----END PGP SIGNATURE----- Merge tag 'v6.12-p5' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fix from Herbert Xu: "Fix a regression in the MIPS CRC32C code" * tag 'v6.12-p5' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: mips/crc32 - fix the CRC32C implementation |
||
|
Linus Torvalds
|
d79944b094 |
sched_ext: One more fix for v6.12-rc7
ops.cpu_acquire() was being invoked with the wrong kfunc mask allowing the operation to call kfuncs which shouldn't be allowed. Fix it by using SCX_KF_REST instead, which is trivial and low risk. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCZzamXw4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGRReAP4/JQ1mKkJv+9nTZkW9OcFFHGVVhrprOUEEFk5j pmHwPAD8DTBMMS/BCQOoXDdiB9uU7ut6M8VdsIj1jmJkMja+eQI= =942J -----END PGP SIGNATURE----- Merge tag 'sched_ext-for-6.12-rc7-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext Pull sched_ext fix from Tejun Heo: "One more fix for v6.12-rc7 ops.cpu_acquire() was being invoked with the wrong kfunc mask allowing the operation to call kfuncs which shouldn't be allowed. Fix it by using SCX_KF_REST instead, which is trivial and low risk" * tag 'sched_ext-for-6.12-rc7-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: sched_ext: ops.cpu_acquire() should be called with SCX_KF_REST |
||
|
Linus Torvalds
|
c9dd4571ad |
for-6.12-rc7-tag
-----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE8rQSAMVO+zA4DBdWxWXV+ddtWDsFAmc2aGIACgkQxWXV+ddt WDu0AQ/9FLfC/e3X2GjZ0auna/7A/rF8MPoATUdAyHn75Md6Hc8PXpi1YvMph+ba pvoufOqrU66/g0UNeacgsp6rF4rKJHg0q9Id+7wueLnDr41g9paXjsLYItq4j26w GusDiZvUDwuDmb70vlTXrgAfnjooIdSwqJTlIzJxvl4wrNzOiUlUJtTMzmUrwn/9 Lf/iByWlGcPKKBc+1ZzFz4HlVOZZSt9YePeJw2/Aul2OMtuI3RTTAL/NtjaFIlYc pb+NHVqFrrfgC+xo68hLBmnsBfS41EGR58rYRjEuQo0+hARa8WbxL3DNA/E/Vi5X dsq/wQVlD7IVIWCoF9J94/iyDdwlDOGFMoL6FUrJwDtPGN/v/xxtA6ruvuC7k5zy bHCR8ZVrJWVaxE7u0Gtl+hFPpDTwNTR7SfvK69gxPfci1cN0m2wCNK02SEUJwV09 N82N2ENGGwyWS+nOl/ERB+7A0QxViMr3JpUrPzSYqsmn8bwDvovSjK2fFouJoSey bpAzbFWj+OS0O9nnRqabTJDM/Tk9O0s0Ye76aUS+Vfk9d5EuVfAg6pHiOBcFDhsK UEG9QbPltfh6LPDHCdV93HOOsC0uNxCTCSpbQ9LFGKBICQsPIX/vZeV45fNFJDLX j5kEtHFVU3snU+jA97nvYXPRANDnnNx/EzXv7zo0Ye8L+plecBs= =ssYj -----END PGP SIGNATURE----- Merge tag 'for-6.12-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux Pull btrfs fix from David Sterba: "One more fix that seems urgent and good to have in 6.12 final. It could potentially lead to unexpected transaction aborts, due to wrong comparison and order of processing of delayed refs" * tag 'for-6.12-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: btrfs: fix incorrect comparison for delayed refs |
||
|
Dmitry Antipov
|
737f341378 |
ocfs2: uncache inode which has failed entering the group
Syzbot has reported the following BUG:
kernel BUG at fs/ocfs2/uptodate.c:509!
...
Call Trace:
<TASK>
? __die_body+0x5f/0xb0
? die+0x9e/0xc0
? do_trap+0x15a/0x3a0
? ocfs2_set_new_buffer_uptodate+0x145/0x160
? do_error_trap+0x1dc/0x2c0
? ocfs2_set_new_buffer_uptodate+0x145/0x160
? __pfx_do_error_trap+0x10/0x10
? handle_invalid_op+0x34/0x40
? ocfs2_set_new_buffer_uptodate+0x145/0x160
? exc_invalid_op+0x38/0x50
? asm_exc_invalid_op+0x1a/0x20
? ocfs2_set_new_buffer_uptodate+0x2e/0x160
? ocfs2_set_new_buffer_uptodate+0x144/0x160
? ocfs2_set_new_buffer_uptodate+0x145/0x160
ocfs2_group_add+0x39f/0x15a0
? __pfx_ocfs2_group_add+0x10/0x10
? __pfx_lock_acquire+0x10/0x10
? mnt_get_write_access+0x68/0x2b0
? __pfx_lock_release+0x10/0x10
? rcu_read_lock_any_held+0xb7/0x160
? __pfx_rcu_read_lock_any_held+0x10/0x10
? smack_log+0x123/0x540
? mnt_get_write_access+0x68/0x2b0
? mnt_get_write_access+0x68/0x2b0
? mnt_get_write_access+0x226/0x2b0
ocfs2_ioctl+0x65e/0x7d0
? __pfx_ocfs2_ioctl+0x10/0x10
? smack_file_ioctl+0x29e/0x3a0
? __pfx_smack_file_ioctl+0x10/0x10
? lockdep_hardirqs_on_prepare+0x43d/0x780
? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
? __pfx_ocfs2_ioctl+0x10/0x10
__se_sys_ioctl+0xfb/0x170
do_syscall_64+0xf3/0x230
entry_SYSCALL_64_after_hwframe+0x77/0x7f
...
</TASK>
When 'ioctl(OCFS2_IOC_GROUP_ADD, ...)' has failed for the particular
inode in 'ocfs2_verify_group_and_input()', corresponding buffer head
remains cached and subsequent call to the same 'ioctl()' for the same
inode issues the BUG() in 'ocfs2_set_new_buffer_uptodate()' (trying
to cache the same buffer head of that inode). Fix this by uncaching
the buffer head with 'ocfs2_remove_from_cache()' on error path in
'ocfs2_group_add()'.
Link: https://lkml.kernel.org/r/20241114043844.111847-1-dmantipov@yandex.ru
Fixes:
|
||
|
Jinjiang Tu
|
8ce41b0f9d |
mm: fix NULL pointer dereference in alloc_pages_bulk_noprof
We triggered a NULL pointer dereference for ac.preferred_zoneref->zone in alloc_pages_bulk_noprof() when the task is migrated between cpusets. When cpuset is enabled, in prepare_alloc_pages(), ac->nodemask may be ¤t->mems_allowed. when first_zones_zonelist() is called to find preferred_zoneref, the ac->nodemask may be modified concurrently if the task is migrated between different cpusets. Assuming we have 2 NUMA Node, when traversing Node1 in ac->zonelist, the nodemask is 2, and when traversing Node2 in ac->zonelist, the nodemask is 1. As a result, the ac->preferred_zoneref points to NULL zone. In alloc_pages_bulk_noprof(), for_each_zone_zonelist_nodemask() finds a allowable zone and calls zonelist_node_idx(ac.preferred_zoneref), leading to NULL pointer dereference. __alloc_pages_noprof() fixes this issue by checking NULL pointer in commit |
||
|
Yafang Shao
|
0740e54304 |
mm, doc: update read_ahead_kb for MADV_HUGEPAGE
MADV_HUGEPAGE is a new addition to readahead with behavior distinct from normal pages. To prevent confusion, we should update the documentation accordingly. Link: https://lkml.kernel.org/r/20241113150711.1685-1-laoar.shao@gmail.com Signed-off-by: Yafang Shao <laoar.shao@gmail.com> Cc: David Hildenbrand <david@redhat.com> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Dan Carpenter
|
669b0cb81e |
fs/proc/task_mmu: prevent integer overflow in pagemap_scan_get_args()
The "arg->vec_len" variable is a u64 that comes from the user at the start
of the function. The "arg->vec_len * sizeof(struct page_region))"
multiplication can lead to integer wrapping. Use size_mul() to avoid
that.
Also the size_add/mul() functions work on unsigned long so for 32bit
systems we need to ensure that "arg->vec_len" fits in an unsigned long.
Link: https://lkml.kernel.org/r/39d41335-dd4d-48ed-8a7f-402c57d8ea84@stanley.mountain
Fixes:
|
||
|
Qun-Wei Lin
|
fd7b4f9f46 |
sched/task_stack: fix object_is_on_stack() for KASAN tagged pointers
When CONFIG_KASAN_SW_TAGS and CONFIG_KASAN_STACK are enabled, the object_is_on_stack() function may produce incorrect results due to the presence of tags in the obj pointer, while the stack pointer does not have tags. This discrepancy can lead to incorrect stack object detection and subsequently trigger warnings if CONFIG_DEBUG_OBJECTS is also enabled. Example of the warning: ODEBUG: object 3eff800082ea7bb0 is NOT on stack ffff800082ea0000, but annotated. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at lib/debugobjects.c:557 __debug_object_init+0x330/0x364 Modules linked in: CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.12.0-rc5 #4 Hardware name: linux,dummy-virt (DT) pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __debug_object_init+0x330/0x364 lr : __debug_object_init+0x330/0x364 sp : ffff800082ea7b40 x29: ffff800082ea7b40 x28: 98ff0000c0164518 x27: 98ff0000c0164534 x26: ffff800082d93ec8 x25: 0000000000000001 x24: 1cff0000c00172a0 x23: 0000000000000000 x22: ffff800082d93ed0 x21: ffff800081a24418 x20: 3eff800082ea7bb0 x19: efff800000000000 x18: 0000000000000000 x17: 00000000000000ff x16: 0000000000000047 x15: 206b63617473206e x14: 0000000000000018 x13: ffff800082ea7780 x12: 0ffff800082ea78e x11: 0ffff800082ea790 x10: 0ffff800082ea79d x9 : 34d77febe173e800 x8 : 34d77febe173e800 x7 : 0000000000000001 x6 : 0000000000000001 x5 : feff800082ea74b8 x4 : ffff800082870a90 x3 : ffff80008018d3c4 x2 : 0000000000000001 x1 : ffff800082858810 x0 : 0000000000000050 Call trace: __debug_object_init+0x330/0x364 debug_object_init_on_stack+0x30/0x3c schedule_hrtimeout_range_clock+0xac/0x26c schedule_hrtimeout+0x1c/0x30 wait_task_inactive+0x1d4/0x25c kthread_bind_mask+0x28/0x98 init_rescuer+0x1e8/0x280 workqueue_init+0x1a0/0x3cc kernel_init_freeable+0x118/0x200 kernel_init+0x28/0x1f0 ret_from_fork+0x10/0x20 ---[ end trace 0000000000000000 ]--- ODEBUG: object 3eff800082ea7bb0 is NOT on stack ffff800082ea0000, but annotated. ------------[ cut here ]------------ Link: https://lkml.kernel.org/r/20241113042544.19095-1-qun-wei.lin@mediatek.com Signed-off-by: Qun-Wei Lin <qun-wei.lin@mediatek.com> Cc: Andrew Yang <andrew.yang@mediatek.com> Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Cc: Casper Li <casper.li@mediatek.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chinwen Chang <chinwen.chang@mediatek.com> Cc: Kent Overstreet <kent.overstreet@linux.dev> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Pasha Tatashin <pasha.tatashin@soleen.com> Cc: Shakeel Butt <shakeel.butt@linux.dev> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Dave Vasilevsky
|
31daa34315 |
crash, powerpc: default to CRASH_DUMP=n on PPC_BOOK3S_32
Fixes boot failures on 6.9 on PPC_BOOK3S_32 machines using Open Firmware.
On these machines, the kernel refuses to boot from non-zero
PHYSICAL_START, which occurs when CRASH_DUMP is on.
Since most PPC_BOOK3S_32 machines boot via Open Firmware, it should
default to off for them. Users booting via some other mechanism can still
turn it on explicitly.
Does not change the default on any other architectures for the
time being.
Link: https://lkml.kernel.org/r/20240917163720.1644584-1-dave@vasilevsky.ca
Fixes:
|
||
|
Jann Horn
|
a4a282daf1 |
mm/mremap: fix address wraparound in move_page_tables()
On 32-bit platforms, it is possible for the expression `len + old_addr <
old_end` to be false-positive if `len + old_addr` wraps around.
`old_addr` is the cursor in the old range up to which page table entries
have been moved; so if the operation succeeded, `old_addr` is the *end* of
the old region, and adding `len` to it can wrap.
The overflow causes mremap() to mistakenly believe that PTEs have been
copied; the consequence is that mremap() bails out, but doesn't move the
PTEs back before the new VMA is unmapped, causing anonymous pages in the
region to be lost. So basically if userspace tries to mremap() a
private-anon region and hits this bug, mremap() will return an error and
the private-anon region's contents appear to have been zeroed.
The idea of this check is that `old_end - len` is the original start
address, and writing the check that way also makes it easier to read; so
fix the check by rearranging the comparison accordingly.
(An alternate fix would be to refactor this function by introducing an
"orig_old_start" variable or such.)
Tested in a VM with a 32-bit X86 kernel; without the patch:
```
user@horn:~/big_mremap$ cat test.c
#define _GNU_SOURCE
#include <stdlib.h>
#include <stdio.h>
#include <err.h>
#include <sys/mman.h>
#define ADDR1 ((void*)0x60000000)
#define ADDR2 ((void*)0x10000000)
#define SIZE 0x50000000uL
int main(void) {
unsigned char *p1 = mmap(ADDR1, SIZE, PROT_READ|PROT_WRITE,
MAP_ANONYMOUS|MAP_PRIVATE|MAP_FIXED_NOREPLACE, -1, 0);
if (p1 == MAP_FAILED)
err(1, "mmap 1");
unsigned char *p2 = mmap(ADDR2, SIZE, PROT_NONE,
MAP_ANONYMOUS|MAP_PRIVATE|MAP_FIXED_NOREPLACE, -1, 0);
if (p2 == MAP_FAILED)
err(1, "mmap 2");
*p1 = 0x41;
printf("first char is 0x%02hhx\n", *p1);
unsigned char *p3 = mremap(p1, SIZE, SIZE,
MREMAP_MAYMOVE|MREMAP_FIXED, p2);
if (p3 == MAP_FAILED) {
printf("mremap() failed; first char is 0x%02hhx\n", *p1);
} else {
printf("mremap() succeeded; first char is 0x%02hhx\n", *p3);
}
}
user@horn:~/big_mremap$ gcc -static -o test test.c
user@horn:~/big_mremap$ setarch -R ./test
first char is 0x41
mremap() failed; first char is 0x00
```
With the patch:
```
user@horn:~/big_mremap$ setarch -R ./test
first char is 0x41
mremap() succeeded; first char is 0x41
```
Link: https://lkml.kernel.org/r/20241111-fix-mremap-32bit-wrap-v1-1-61d6be73b722@google.com
Fixes:
|
||
|
Motiejus JakÅ`tys
|
a39326767c |
tools/mm: fix compile error
Add a missing semicolon.
Link: https://lkml.kernel.org/r/20241112171655.1662670-1-motiejus@jakstys.lt
Fixes:
|
||
|
Kairui Song
|
0ec8bc9e88 |
mm, swap: fix allocation and scanning race with swapoff
There are two flags used to synchronize allocation and scanning with swapoff: SWP_WRITEOK and SWP_SCANNING. SWP_WRITEOK: Swapoff will first unset this flag, at this point any further swap allocation or scanning on this device should just abort so no more new entries will be referencing this device. Swapoff will then unuse all existing swap entries. SWP_SCANNING: This flag is set when device is being scanned. Swapoff will wait for all scanner to stop before the final release of the swap device structures to avoid UAF. Note this flag is the highest used bit of si->flags so it could be added up arithmetically, if there are multiple scanner. commit |
||
|
Dave Airlie
|
1eb0de899b |
amd-drm-fixes-6.12-2024-11-14:
amdgpu: - PSR fix - Panel replay fixes - DML fix - vblank power fix - Fix video caps - SMU 14.0 fix - GPUVM fix - MES 12 fix - APU carve out fix - DC vbios fix - NBIO fix -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQQgO5Idg2tXNTSZAr293/aFa7yZ2AUCZzYIpwAKCRC93/aFa7yZ 2NVgAQDz3MsCT5vRhIkjBQ8VJqi/k23vvzoHRvBWE7JrfejmuQD+IvDPKmXvneQK M+3vSqDIbpmfwXEghHBdWXTMJqPZNg8= =UkPM -----END PGP SIGNATURE----- Merge tag 'amd-drm-fixes-6.12-2024-11-14' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes amd-drm-fixes-6.12-2024-11-14: amdgpu: - PSR fix - Panel replay fixes - DML fix - vblank power fix - Fix video caps - SMU 14.0 fix - GPUVM fix - MES 12 fix - APU carve out fix - DC vbios fix - NBIO fix Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241114143401.448210-1-alexander.deucher@amd.com |
||
|
Dave Airlie
|
99d051c4b3 |
Short summary of fixes pull:
bridge: - tc358768: Fix DSI command tx nouveau: - Fix GSP AUX error handling - dp: Handle retires for AUX CH transfers with GSP - fw: Sync DMA after setup panthor: - Fix partial BO mappings to GPU rockchip: - vop: Avoid null-ptr deref in plane-state check vmwgfx: - Avoid null-ptr deref in surface creation -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEchf7rIzpz2NEoWjlaA3BHVMLeiMFAmc2B4cACgkQaA3BHVML eiOr8AgAkOl/ck2X5Q3f5Fvwbj8sQikNqHUPCBGYf2UUwSstxpbvAxtqBKUV5CyT 0yjaamvFattTTOopzBbEnOpl3cHbwDubmEuaRap1UGdLFE0hFeMA4ycmshKppn14 GbL7x3FSL3GaU3AHNzWowLtLE99OaZM7YLJ/BL3auHDyezg0TXD++OLvjezZhG3x oiO4kNDImOKGSF5nFmTfZkQARHCcm6xv3I+E248RZGeL6HToeZc2lLbENuTCS6la RQBH+OYnLXQDRznoq2Qj5SN2H4jl1nlnJdZZ8Ph592jCpieg3OjO3eGTNsT7SF5L tYZZFIcTSf76YgpkfBPbPWPlRS1KzQ== =qfvW -----END PGP SIGNATURE----- Merge tag 'drm-misc-fixes-2024-11-14' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes Short summary of fixes pull: bridge: - tc358768: Fix DSI command tx nouveau: - Fix GSP AUX error handling - dp: Handle retires for AUX CH transfers with GSP - fw: Sync DMA after setup panthor: - Fix partial BO mappings to GPU rockchip: - vop: Avoid null-ptr deref in plane-state check vmwgfx: - Avoid null-ptr deref in surface creation Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20241114142256.GA86810@2a02-2454-fd5e-fd00-4ce-489-4b34-bd1a.dyn6.pyur.net |
||
|
Dave Airlie
|
6b76bf8f3b |
Merge tag 'drm-intel-fixes-2024-11-14' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes
- Don't load GSC on ARL-H and ARL-U if too old FW - Avoid potential OOPS in enabling/disabling TV output Signed-off-by: Dave Airlie <airlied@redhat.com> From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/ZzWksU6CMGLPfjkT@jlahtine-mobl.ger.corp.intel.com |
||
|
Tejun Heo
|
a4af89cc50 |
sched_ext: ops.cpu_acquire() should be called with SCX_KF_REST
ops.cpu_acquire() is currently called with 0 kf_maks which is interpreted as
SCX_KF_UNLOCKED which allows all unlocked kfuncs, but ops.cpu_acquire() is
called from balance_one() under the rq lock and should only be allowed call
kfuncs that are safe under the rq lock. Update it to use SCX_KF_REST.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: David Vernet <void@manifault.com>
Cc: Zhao Mengmeng <zhaomzhao@126.com>
Link: http://lkml.kernel.org/r/ZzYvf2L3rlmjuKzh@slm.duckdns.org
Fixes:
|
||
|
Linus Torvalds
|
cfaaa7d010 |
Including fixes from bluetooth.
Quite calm week. No new regression under investigation.
Current release - regressions:
- eth: revert "igb: Disable threaded IRQ for igb_msix_other"
Current release - new code bugs:
- bluetooth: btintel: direct exception event to bluetooth stack
Previous releases - regressions:
- core: fix data-races around sk->sk_forward_alloc
- netlink: terminate outstanding dump on socket close
- mptcp: error out earlier on disconnect
- vsock: fix accept_queue memory leak
- phylink: ensure PHY momentary link-fails are handled
- eth: mlx5:
- fix null-ptr-deref in add rule err flow
- lock FTE when checking if active
- eth: dwmac-mediatek: fix inverted handling of mediatek,mac-wol
Previous releases - always broken:
- sched: fix u32's systematic failure to free IDR entries for hnodes.
- sctp: fix possible UAF in sctp_v6_available()
- eth: bonding: add ns target multicast address to slave device
- eth: mlx5: fix msix vectors to respect platform limit
- eth: icssg-prueth: fix 1 PPS sync
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from bluetooth.
Quite calm week. No new regression under investigation.
Current release - regressions:
- eth: revert "igb: Disable threaded IRQ for igb_msix_other"
Current release - new code bugs:
- bluetooth: btintel: direct exception event to bluetooth stack
Previous releases - regressions:
- core: fix data-races around sk->sk_forward_alloc
- netlink: terminate outstanding dump on socket close
- mptcp: error out earlier on disconnect
- vsock: fix accept_queue memory leak
- phylink: ensure PHY momentary link-fails are handled
- eth: mlx5:
- fix null-ptr-deref in add rule err flow
- lock FTE when checking if active
- eth: dwmac-mediatek: fix inverted handling of mediatek,mac-wol
Previous releases - always broken:
- sched: fix u32's systematic failure to free IDR entries for hnodes.
- sctp: fix possible UAF in sctp_v6_available()
- eth: bonding: add ns target multicast address to slave device
- eth: mlx5: fix msix vectors to respect platform limit
- eth: icssg-prueth: fix 1 PPS sync"
* tag 'net-6.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (38 commits)
net: sched: u32: Add test case for systematic hnode IDR leaks
selftests: bonding: add ns multicast group testing
bonding: add ns target multicast address to slave device
net: ti: icssg-prueth: Fix 1 PPS sync
stmmac: dwmac-intel-plat: fix call balance of tx_clk handling routines
net: Make copy_safe_from_sockptr() match documentation
net: stmmac: dwmac-mediatek: Fix inverted handling of mediatek,mac-wol
ipmr: Fix access to mfc_cache_list without lock held
samples: pktgen: correct dev to DEV
net: phylink: ensure PHY momentary link-fails are handled
mptcp: pm: use _rcu variant under rcu_read_lock
mptcp: hold pm lock when deleting entry
mptcp: update local address flags when setting it
net: sched: cls_u32: Fix u32's systematic failure to free IDR entries for hnodes.
MAINTAINERS: Re-add cancelled Renesas driver sections
Revert "igb: Disable threaded IRQ for igb_msix_other"
Bluetooth: btintel: Direct exception event to bluetooth stack
Bluetooth: hci_core: Fix calling mgmt_device_connected
virtio/vsock: Improve MSG_ZEROCOPY error handling
vsock: Fix sk_error_queue memory leak
...
|
||
|
Linus Torvalds
|
4abcd80f23 |
bcachefs fixes for 6.12
- Assorted tiny syzbot fixes
- Shutdown path fix: "bch2_btree_write_buffer_flush_going_ro()"
The shutdown path wasn't flushing the btree write buffer, leading to
shutting down while we still had operations in flight. This fixes a
whole slew of syzbot bugs, and undoubtedly other strange heisenbugs.
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Merge tag 'bcachefs-2024-11-13' of git://evilpiepirate.org/bcachefs
Pull bcachefs fixes from Kent Overstreet:
"This fixes one minor regression from the btree cache fixes (in the
scan_for_btree_nodes repair path) - and the shutdown path fix is the
big one here, in terms of bugs closed:
- Assorted tiny syzbot fixes
- Shutdown path fix: "bch2_btree_write_buffer_flush_going_ro()"
The shutdown path wasn't flushing the btree write buffer, leading
to shutting down while we still had operations in flight. This
fixes a whole slew of syzbot bugs, and undoubtedly other strange
heisenbugs.
* tag 'bcachefs-2024-11-13' of git://evilpiepirate.org/bcachefs:
bcachefs: Fix assertion pop in bch2_ptr_swab()
bcachefs: Fix journal_entry_dev_usage_to_text() overrun
bcachefs: Allow for unknown key types in backpointers fsck
bcachefs: Fix assertion pop in topology repair
bcachefs: Fix hidden btree errors when reading roots
bcachefs: Fix validate_bset() repair path
bcachefs: Fix missing validation for bch_backpointer.level
bcachefs: Fix bch_member.btree_bitmap_shift validation
bcachefs: bch2_btree_write_buffer_flush_going_ro()
|
||
|
Steven Rostedt
|
09663753bb |
tracing/ring-buffer: Clear all memory mapped CPU ring buffers on first recording
The events of a memory mapped ring buffer from the previous boot should
not be mixed in with events from the current boot. There's meta data that
is used to handle KASLR so that function names can be shown properly.
Also, since the timestamps of the previous boot have no meaning to the
timestamps of the current boot, having them intermingled in a buffer can
also cause confusion because there could possibly be events in the future.
When a trace is activated the meta data is reset so that the pointers of
are now processed for the new address space. The trace buffers are reset
when tracing starts for the first time. The problem here is that the reset
only happens on online CPUs. If a CPU is offline, it does not get reset.
To demonstrate the issue, a previous boot had tracing enabled in the boot
mapped ring buffer on reboot. On the following boot, tracing has not been
started yet so the function trace from the previous boot is still visible.
# trace-cmd show -B boot_mapped -c 3 | tail
<idle>-0 [003] d.h2. 156.462395: __rcu_read_lock <-cpu_emergency_disable_virtualization
<idle>-0 [003] d.h2. 156.462396: vmx_emergency_disable_virtualization_cpu <-cpu_emergency_disable_virtualization
<idle>-0 [003] d.h2. 156.462396: __rcu_read_unlock <-__sysvec_reboot
<idle>-0 [003] d.h2. 156.462397: stop_this_cpu <-__sysvec_reboot
<idle>-0 [003] d.h2. 156.462397: set_cpu_online <-stop_this_cpu
<idle>-0 [003] d.h2. 156.462397: disable_local_APIC <-stop_this_cpu
<idle>-0 [003] d.h2. 156.462398: clear_local_APIC <-disable_local_APIC
<idle>-0 [003] d.h2. 156.462574: mcheck_cpu_clear <-stop_this_cpu
<idle>-0 [003] d.h2. 156.462575: mce_intel_feature_clear <-stop_this_cpu
<idle>-0 [003] d.h2. 156.462575: lmce_supported <-mce_intel_feature_clear
Now, if CPU 3 is taken offline, and tracing is started on the memory
mapped ring buffer, the events from the previous boot in the CPU 3 ring
buffer is not reset. Now those events are using the meta data from the
current boot and produces just hex values.
# echo 0 > /sys/devices/system/cpu/cpu3/online
# trace-cmd start -B boot_mapped -p function
# trace-cmd show -B boot_mapped -c 3 | tail
<idle>-0 [003] d.h2. 156.462395: 0xffffffff9a1e3194 <-0xffffffff9a0f655e
<idle>-0 [003] d.h2. 156.462396: 0xffffffff9a0a1d24 <-0xffffffff9a0f656f
<idle>-0 [003] d.h2. 156.462396: 0xffffffff9a1e6bc4 <-0xffffffff9a0f7323
<idle>-0 [003] d.h2. 156.462397: 0xffffffff9a0d12b4 <-0xffffffff9a0f732a
<idle>-0 [003] d.h2. 156.462397: 0xffffffff9a1458d4 <-0xffffffff9a0d12e2
<idle>-0 [003] d.h2. 156.462397: 0xffffffff9a0faed4 <-0xffffffff9a0d12e7
<idle>-0 [003] d.h2. 156.462398: 0xffffffff9a0faaf4 <-0xffffffff9a0faef2
<idle>-0 [003] d.h2. 156.462574: 0xffffffff9a0e3444 <-0xffffffff9a0d12ef
<idle>-0 [003] d.h2. 156.462575: 0xffffffff9a0e4964 <-0xffffffff9a0d12ef
<idle>-0 [003] d.h2. 156.462575: 0xffffffff9a0e3fb0 <-0xffffffff9a0e496f
Reset all CPUs when starting a boot mapped ring buffer for the first time,
and not just the online CPUs.
Fixes:
|