The existing one-liner "Folder is case insensitive" leaves the
impression that FS_CASEFOLD_FL is reserved for directories.
That impression is wrong: filesystems that derive
case-insensitivity from mount or volume state report the bit on
non-directory inodes via i_op->fileattr_get, so userspace
inspecting FS_IOC_GETFLAGS can see it on any inode type.
Replace the one-liner with a block comment that names directories
as the typical case, records that non-directory inodes may also
report the bit, and notes FS_XFLAG_CASEFOLD as the read-only
companion exposed through FS_IOC_FSGETXATTR.
Reported-by: sashiko-bot <sashiko-bot@kernel.org>
Closes: https://sashiko.dev/#/patchset/20260507-case-sensitivity-v14-0-e62cc8200435@oracle.com?part=3
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260515153515.362266-5-cel@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
The PATHCONF RPC issued from nfs_probe_fsinfo() supplies two pieces of
information: max_namelen, used only when server->namelen has not been
pinned by mount options, and the case_insensitive / case_preserving
fields, used only by the NFSv2/NFSv3 path. NFSv4 receives its case
sensitivity caps from the FATTR4_CASE_* attributes during the
set_capabilities probe, and a non-zero server->namelen short-circuits
the only other field of interest.
When both conditions hold (NFSv4 with namelen pinned), the pathconf
reply is discarded in full but the round-trip is still on the mount
critical path. Gate the call on version < 4 || namelen == 0 so that
mounts which cannot benefit from the reply do not pay for it.
Reported-by: sashiko-bot <sashiko-bot@kernel.org>
Closes: https://sashiko.dev/#/patchset/20260507-case-sensitivity-v14-0-e62cc8200435@oracle.com?part=10
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260515153515.362266-4-cel@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
nfs_probe_fsinfo() clears NFS_CAP_CASE_INSENSITIVE and
NFS_CAP_CASE_NONPRESERVING ahead of the synchronous pathconf RPC and
sets them again only after the reply arrives. The code path is gated
by clp->rpc_ops->version < 4 and is therefore reached on NFSv2/v3
remount via nfs_reconfigure(), which calls nfs_probe_server() against
a live mount. Concurrent readers walking server->caps can observe the
cleared state for the duration of the round-trip and report the wrong
case-sensitivity attributes.
Compute the post-probe capability mask on the stack and assign it to
server->caps in a single store so readers see either the stale value
or the freshly computed one, never an intermediate zero. Preserve the
original behaviour of dropping the bits when the pathconf RPC itself
fails.
The analogous transient zero on the NFSv4 path lives in
nfs4_server_capabilities() and is left for a separate fix.
Reported-by: sashiko-bot <sashiko-bot@kernel.org>
Closes: https://sashiko.dev/#/patchset/20260507-case-sensitivity-v14-0-e62cc8200435@oracle.com?part=10
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260515153515.362266-3-cel@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
The case-sensitivity series adds FS_XFLAG_CASEFOLD and
FS_XFLAG_CASENONPRESERVING to include/uapi/linux/fs.h, and
tools/perf/check-headers.sh would warn about the resulting drift
in the perf beauty copy. Pick up only those two flags (and the
surrounding comment block) so the series does not introduce new
drift of its own.
This is not a full sync. The perf copy is also missing the
FS_IOC_SHUTDOWN block added by commit 1f662195db ("fs: add
generic FS_IOC_SHUTDOWN definitions"). Because
tools/perf/check-headers.sh emits a single warning per file, that
warning will remain active until the older drift is picked up
too; closing it is left to a separate sync outside this series.
Reported-by: sashiko-bot <sashiko-bot@kernel.org>
Closes: https://sashiko.dev/#/patchset/20260507-case-sensitivity-v14-0-e62cc8200435@oracle.com?part=2
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260515153515.362266-2-cel@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
Chuck Lever <cel@kernel.org> says:
I'm attempting to implement enough support in the Linux VFS to
enable file services like NFSD and ksmbd (and user space
equivalents) to provide the actual status of case folding support
in local file systems. The default behavior for local file systems
not explicitly supported in this series is to reflect the usual
POSIX behaviors:
case-insensitive = false
case-nonpreserving = false
The case-insensitivity and case-nonpreserving booleans can be
consumed immediately by NFSD. These two attributes have been part of
the NFSv3 and NFSv4 protocols for decades, in order to support NFS
client implementations on non-POSIX systems.
Support for user space file servers is why this series exposes case
folding information via a user-space API. I don't know of any other
category of user-space application that requires access to case
folding info.
The Linux NFS community has a growing interest in supporting NFS
clients on Windows and MacOS platforms, where file name behavior does
not align with traditional POSIX semantics.
One example of a Windows-based NFS client is [1]. This client
implementation explicitly requires servers to report
FATTR4_WORD0_CASE_INSENSITIVE = TRUE for proper operation, a hard
requirement for Windows client interoperability because Windows
applications expect case-insensitive behavior. When an NFS client
knows the server is case-insensitive, it can avoid issuing multiple
LOOKUP/READDIR requests to search for case variants, and applications
like Win32 programs work correctly without manual workarounds or
code changes.
Even the Linux client can take advantage of this information. Trond
merged patches 4 years ago [2] that introduce support for case
insensitivity, in support of the Hammerspace NFS server. In
particular, when a client detects a case-insensitive NFS share,
negative dentry caching must be disabled (a lookup for "FILE.TXT"
failing shouldn't cache a negative entry when "file.txt" exists)
and directory change invalidation must clear all cached case-folded
file name variants.
Hammerspace servers and several other NFS server implementations
operate in multi-protocol environments, where a single file service
instance caters to both NFS and SMB clients. In those cases, things
work more smoothly for everyone when the NFS client can see and adapt
to the case folding behavior that SMB users rely on and expect. NFSD
needs to support the case-insensitivity and case-nonpreserving
booleans properly in order to participate as a first-class citizen
in such environments.
[1] https://github.com/kofemann/ms-nfs41-client
[2] https://patchwork.kernel.org/project/linux-nfs/cover/20211217203658.439352-1-trondmy@kernel.org/
* patches from https://patch.msgid.link/20260507-case-sensitivity-v14-0-e62cc8200435@oracle.com:
ksmbd: Report filesystem case sensitivity via FS_ATTRIBUTE_INFORMATION
nfsd: Implement NFSv4 FATTR4_CASE_INSENSITIVE and FATTR4_CASE_PRESERVING
nfsd: Report export case-folding via NFSv3 PATHCONF
isofs: Implement fileattr_get for case sensitivity
vboxsf: Implement fileattr_get for case sensitivity
nfs: Implement fileattr_get for case sensitivity
cifs: Implement fileattr_get for case sensitivity
xfs: Report case sensitivity in fileattr_get
hfsplus: Report case sensitivity in fileattr_get
hfs: Implement fileattr_get for case sensitivity
ntfs3: Implement fileattr_get for case sensitivity
exfat: Implement fileattr_get for case sensitivity
fat: Implement fileattr_get for case sensitivity
fs: Add case sensitivity flags to file_kattr
fs: Move file_kattr initialization to callers
Link: https://patch.msgid.link/20260507-case-sensitivity-v14-0-e62cc8200435@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
FS_ATTRIBUTE_INFORMATION responses have always reported
FILE_CASE_SENSITIVE_SEARCH and FILE_CASE_PRESERVED_NAMES
unconditionally. Case-insensitive filesystems like exFAT, and
casefolded directories on ext4 or f2fs, have no way to signal
their actual semantics to SMB clients.
Now that filesystems expose case behavior through ->fileattr_get,
query it via vfs_fileattr_get() and translate the FS_XFLAG_CASEFOLD
and FS_XFLAG_CASENONPRESERVING flags into the corresponding SMB
attributes. Filesystems without ->fileattr_get continue reporting
default POSIX behavior (case-sensitive, case-preserving).
SMB's FS_ATTRIBUTE_INFORMATION reports per-share attributes from
the share root, not per-file. Shares mixing casefold and
non-casefold directories report the root directory's behavior.
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Reviewed-by: Roland Mainz <roland.mainz@nrubsig.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260507-case-sensitivity-v14-15-e62cc8200435@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
NFSD currently provides NFSv4 clients with hard-coded responses
indicating all exported filesystems are case-sensitive and
case-preserving. This is incorrect for case-insensitive filesystems
and ext4 directories with casefold enabled.
Query the underlying filesystem's actual case sensitivity via
nfsd_get_case_info() and return accurate values to clients. This
supports per-directory settings for filesystems that allow mixing
case-sensitive and case-insensitive directories within an export.
The helper queries the parent dentry for non-directory filehandles
because case-folding is a per-directory property. That resolution
has the same corner cases here as for NFSv3 PATHCONF: single-file
exports query an unexported parent, disconnected dentries report
defaults until reconnected, and hardlinked files track whichever
alias the dcache currently holds.
Reviewed-by: Roland Mainz <roland.mainz@nrubsig.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260507-case-sensitivity-v14-14-e62cc8200435@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
The hard-coded MSDOS_SUPER_MAGIC check in nfsd3_proc_pathconf()
only recognizes FAT filesystems as case-insensitive. Modern
filesystems like F2FS, exFAT, and CIFS support case-insensitive
directories, but NFSv3 clients cannot discover this capability.
Query the export's actual case behavior through ->fileattr_get
instead. This allows NFSv3 clients to correctly handle case
sensitivity for any filesystem that implements the fileattr
interface. Filesystems without ->fileattr_get continue to report
the default POSIX behavior (case-sensitive, case-preserving).
This change depends on the earlier "fat: Implement fileattr_get
for case sensitivity" patch in this series, which ensures FAT
filesystems report their case behavior correctly via the
fileattr interface.
Case-folding is a per-directory property, so
nfsd_get_case_info() queries the parent dentry for
non-directory filehandles. Three inherent corner cases follow:
a single-file export's parent lies outside the exported
subtree, so the LSM hook evaluates against an unexported
directory; a disconnected dentry from fh_verify() has
d_parent == itself, so the file's own attributes are reported
until the dentry connects; and a hardlinked file resolves
through the alias the dcache currently holds, so when the
inode is linked into both case-folded and case-sensitive
directories the reported value tracks whichever parent is
active. These limitations are not addressable without
redefining the protocol attribute as per-parent rather than
per-object.
RFC 1813 restricts PATHCONF errors to NFS3ERR_STALE,
NFS3ERR_BADHANDLE, and NFS3ERR_SERVERFAULT. When an LSM hook
denies the case-folding query on the parent, NFS3ERR_STALE is
the only correct mapping: NFS3ERR_SERVERFAULT misrepresents a
working server as broken, and NFS3ERR_BADHANDLE implies a
decoding failure that did not occur. A client purging the
filehandle on receipt is the desired outcome, since the server
has refused to read attributes through it. Substituting POSIX
defaults instead would let the same handle report
casefold=false now and casefold=true once policy permits,
opening a silent name-collision window on case-insensitive
exports.
Reviewed-by: Roland Mainz <roland.mainz@nrubsig.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260507-case-sensitivity-v14-13-e62cc8200435@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Upper layers such as NFSD need a way to query whether a
filesystem handles filenames in a case-sensitive manner so
they can provide correct semantics to remote clients. Without
this information, NFS exports of ISO 9660 filesystems cannot
advertise their filename case behavior.
Implement isofs_fileattr_get() to report ISO 9660 case handling
behavior. The 'check=r' (relaxed) mount option enables
case-insensitive lookups and is reported via FS_XFLAG_CASEFOLD.
By default, Joliet extensions operate in relaxed mode while
plain ISO 9660 uses strict (case-sensitive) mode.
Plain ISO 9660 names on the medium are uppercase. When neither
Rock Ridge nor Joliet is in effect, the default 'map=n' option
(and 'map=a') routes lookup and readdir through
isofs_name_translate(), which forces A-Z to a-z. The names
visible to userspace then differ in case from the on-disc form,
so report FS_XFLAG_CASENONPRESERVING in that configuration. Rock
Ridge and Joliet both deliver names as authored, and 'map=o'
emits the raw on-disc name unchanged, so those configurations
remain case-preserving.
Casefolding is a directory property, and the in-tree consumers
(NFSD, ksmbd) issue the query against a directory: NFSD walks
to the parent for non-directory dentries before calling
vfs_fileattr_get(), and ksmbd reports per-share attributes from
the share root. Wire .fileattr_get only on
isofs_dir_inode_operations. The CASEFOLD flag is set in both
fa->fsx_xflags and fa->flags so FS_IOC_FSGETXATTR and
FS_IOC_GETFLAGS agree.
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Roland Mainz <roland.mainz@nrubsig.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260507-case-sensitivity-v14-12-e62cc8200435@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Upper layers such as NFSD need a way to query whether a
filesystem handles filenames in a case-sensitive manner. Report
VirtualBox shared folder case handling behavior via the
FS_XFLAG_CASEFOLD flag.
The case sensitivity property is queried from the VirtualBox host
service at mount time and cached in struct vboxsf_sbi. The host
determines case sensitivity based on the underlying host filesystem
(for example, Windows NTFS is case-insensitive while Linux ext4 is
case-sensitive).
VirtualBox shared folders always preserve filename case exactly
as provided by the guest. The host interface does not expose a
separate case-preserving property; leaving
FS_XFLAG_CASENONPRESERVING unset reports the POSIX-default
case-preserving behavior, which matches vboxsf semantics.
The callback is registered in all three inode_operations
structures (directory, file, and symlink) to ensure consistent
reporting across all inode types.
Reviewed-by: Roland Mainz <roland.mainz@nrubsig.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260507-case-sensitivity-v14-11-e62cc8200435@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
An NFS server re-exporting an NFS mount point needs to report
the case sensitivity behavior of the underlying filesystem to
its clients. NFSD's attribute encoder obtains that information
by calling vfs_fileattr_get() on the lower filesystem, so the
NFS client must implement fileattr_get to surface what it
learned from its own server.
The NFS client already retrieves case sensitivity information
from servers during mount via PATHCONF (NFSv3) or the
FATTR4_CASE_INSENSITIVE/FATTR4_CASE_PRESERVING attributes
(NFSv4). Expose this information through fileattr_get by
reporting the FS_XFLAG_CASEFOLD and FS_XFLAG_CASENONPRESERVING
flags. NFSv2 lacks PATHCONF support, so mounts using that protocol
version default to standard POSIX behavior: case-sensitive and
case-preserving.
PATHCONF is now invoked unconditionally for NFSv2 and NFSv3 mounts
so the case-sensitivity capabilities are established even when the
user pins server->namelen with the namlen= mount option. That option
is orthogonal to case handling, and skipping PATHCONF because
namelen was already known would leave the caps unset.
The two capability bits carry opposite polarity because their POSIX
defaults differ. Most servers are case-sensitive and case-
preserving, matching "neither xflag set." NFS_CAP_CASE_INSENSITIVE
is set only when the server affirms case insensitivity, so "server
said no" and "server did not answer" both collapse to the case-
sensitive default. NFS_CAP_CASE_NONPRESERVING follows the same
pattern in the opposite direction: set only when the server affirms
that it does not preserve case, so that silence or a missing
attribute lands on the case-preserving default. The NFSv4 probe
checks res.attr_bitmask[0] to distinguish "server said false" from
"server omitted the attribute" before setting the bit.
Both capability bits are cleared before each probe so a remount,
an NFSv4 transparent state migration to a server with different
case semantics, or a probe whose reply does not arrive does not
retain stale capabilities from the prior probe.
Reviewed-by: Roland Mainz <roland.mainz@nrubsig.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260507-case-sensitivity-v14-10-e62cc8200435@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Upper layers such as NFSD need a way to query whether a filesystem
handles filenames in a case-sensitive manner. Report CIFS/SMB case
handling behavior via FS_XFLAG_CASEFOLD and
FS_XFLAG_CASENONPRESERVING.
The authoritative source is the server itself: at mount time CIFS
issues QueryFSInfo(FS_ATTRIBUTE_INFORMATION) and caches the reply
on the tcon. That reply carries FILE_CASE_SENSITIVE_SEARCH and
FILE_CASE_PRESERVED_NAMES, which reflect whatever case handling
the share actually implements after SMB3.1.1 POSIX extensions
negotiation. Translating those two bits into the VFS flags lets
cifs_fileattr_get report what the server advertises rather than
what the client was asked to pretend.
QueryFSInfo is best-effort; the mount completes even if the server
does not answer. MaxPathNameComponentLength is zero in that case
and is used as the "no reply received" sentinel. When no reply is
available, fall back to the nocase mount option so that the reported
behavior agrees with the dentry comparison operations installed on
the superblock.
The callback is registered on cifs_dir_inode_ops so that NFSD,
ksmbd, and other consumers querying case handling against a
directory get a definitive answer, and on cifs_file_inode_ops to
preserve FS_COMPR_FL reporting on regular files. cifs_set_ops()
also installs cifs_namespace_inode_operations on DFS referral
directories that carry IS_AUTOMOUNT; register the same callback
there so the answer does not depend on whether the directory is
a referral point.
Registering fileattr_get routes FS_IOC_GETFLAGS through
vfs_fileattr_get() and short-circuits the syscall's fallback to
cifs_ioctl(). That fallback invoked CIFSGetExtAttr() under
CONFIG_CIFS_POSIX and CONFIG_CIFS_ALLOW_INSECURE_LEGACY on servers
advertising CIFS_UNIX_EXTATTR_CAP, surfacing the SMB1 Unix-extension
immutable, append, and nodump bits. cifs_fileattr_get carries over
only FS_COMPR_FL from cached cifsAttrs; the SMB1 extattr fetch is
not reproduced. SMB1 is deprecated, and acquiring a netfid from
within a dentry-only callback is not worth preserving a path tied
to an insecure legacy dialect.
Acked-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Roland Mainz <roland.mainz@nrubsig.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260507-case-sensitivity-v14-9-e62cc8200435@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Upper layers such as NFSD need to query whether a filesystem
is case-sensitive. Add FS_XFLAG_CASEFOLD to xfs_ip2xflags()
when the filesystem is formatted with the ASCIICI feature
flag. This serves both FS_IOC_FSGETXATTR (via xfs_fill_fsxattr()
in xfs_fileattr_get()) and XFS_IOC_BULKSTAT (which populates
bs_xflags directly from xfs_ip2xflags()), so bulkstat consumers
and per-inode queries see a consistent view of the filesystem's
case-folding behavior.
FS_XFLAG_CASEFOLD is read-only: FS_XFLAG_RDONLY_MASK ensures
FS_IOC_FSSETXATTR strips it, and xfs_flags2diflags() has no
clause for CASEFOLD so the on-disk diflags are unaffected.
The legacy FS_IOC_SETFLAGS path in xfs_fileattr_set() also
allows FS_CASEFOLD_FL through its allowlist on ASCIICI
filesystems so that a chattr read-modify-write cycle does
not fail with EOPNOTSUPP.
XFS always preserves case. XFS is case-sensitive by default,
but supports ASCII case-insensitive lookups when formatted
with the ASCIICI feature flag.
Reviewed-by: Roland Mainz <roland.mainz@nrubsig.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260507-case-sensitivity-v14-8-e62cc8200435@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Add case sensitivity reporting to the existing hfsplus_fileattr_get()
function via the FS_XFLAG_CASEFOLD flag. HFS+ always preserves case
at rest.
Case sensitivity depends on how the volume was formatted: HFSX
volumes may be either case-sensitive or case-insensitive, indicated
by the HFSPLUS_SB_CASEFOLD superblock flag.
FS_XFLAG_CASEFOLD is read-only: FS_XFLAG_RDONLY_MASK ensures
FS_IOC_FSSETXATTR strips it. The legacy FS_IOC_SETFLAGS path in
hfsplus_fileattr_set() also allows FS_CASEFOLD_FL through its
allowlist on case-insensitive volumes so that a chattr
read-modify-write cycle does not fail with EOPNOTSUPP.
Reviewed-by: Viacheslav Dubeyko <slava@dubeyko.com>
Reviewed-by: Roland Mainz <roland.mainz@nrubsig.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260507-case-sensitivity-v14-7-e62cc8200435@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Report HFS case sensitivity behavior via the FS_XFLAG_CASEFOLD
flag. HFS is always case-insensitive (using Mac OS Roman case
folding) and always preserves case at rest.
Reviewed-by: Viacheslav Dubeyko <slava@dubeyko.com>
Reviewed-by: Roland Mainz <roland.mainz@nrubsig.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260507-case-sensitivity-v14-6-e62cc8200435@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Report NTFS case sensitivity behavior via the FS_XFLAG_CASEFOLD
flag. NTFS always preserves case at rest.
Reviewed-by: Roland Mainz <roland.mainz@nrubsig.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260507-case-sensitivity-v14-5-e62cc8200435@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Report exFAT's case sensitivity behavior via the FS_XFLAG_CASEFOLD
flag. exFAT compares names through the volume's upcase table; in
practice that table folds case, and case is preserved at rest.
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Reviewed-by: Roland Mainz <roland.mainz@nrubsig.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://github.com/exfatprogs/exfatprogs/issues/313
Link: https://patch.msgid.link/20260507-case-sensitivity-v14-4-e62cc8200435@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Report FAT's case sensitivity behavior via the FS_XFLAG_CASEFOLD
and FS_XFLAG_CASENONPRESERVING flags. FAT filesystems are
case-insensitive by default.
MSDOS supports a 'nocase' mount option that enables case-sensitive
behavior; check this option when reporting case sensitivity.
VFAT long filename entries preserve case; without VFAT, only
uppercased 8.3 short names are stored. MSDOS with 'nocase' also
preserves case since the name-formatting code skips upcasing when
'nocase' is set. Check both options when reporting case preservation.
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Roland Mainz <roland.mainz@nrubsig.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260507-case-sensitivity-v14-3-e62cc8200435@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Enable upper layers such as NFSD to retrieve case sensitivity
information from file systems by adding FS_XFLAG_CASEFOLD and
FS_XFLAG_CASENONPRESERVING flags.
Filesystems report case-insensitive or case-nonpreserving behavior
by setting these flags directly in fa->fsx_xflags. The default
(flags unset) indicates POSIX semantics: case-sensitive and
case-preserving. Both flags are added to FS_XFLAG_RDONLY_MASK so
FS_IOC_FSSETXATTR silently strips them, keeping the new xflags
strictly a reporting interface. Callers that want to toggle
casefolding continue to use FS_IOC_SETFLAGS with FS_CASEFOLD_FL,
the established UAPI on filesystems that support the operation
(ext4 and f2fs on empty directories).
Case sensitivity information is exported to userspace via the
fa_xflags field in the FS_IOC_FSGETXATTR ioctl and file_getattr()
system call.
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Roland Mainz <roland.mainz@nrubsig.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260507-case-sensitivity-v14-2-e62cc8200435@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
fileattr_fill_xflags() and fileattr_fill_flags() memset the
entire file_kattr struct before populating select fields, so
callers cannot pre-set fields in fa->fsx_xflags without having
their values clobbered. Darrick Wong noted that a function
named "fill_xflags" touching more than xflags forces callers
to know implementation details beyond its apparent scope.
Drop the memset from both fill functions and initialize at the
entry points instead: ioctl_setflags(), ioctl_fssetxattr(),
the file_setattr() syscall, and xfs_ioc_fsgetxattra() now
declare fa with an aggregate initializer. ioctl_getflags(),
ioctl_fsgetxattr(), and the file_getattr() syscall already
aggregate-initialize fa to pass flags_valid/fsx_valid hints
into vfs_fileattr_get().
Subsequent patches rely on this so that ->fileattr_get()
handlers can set case-sensitivity flags (FS_XFLAG_CASEFOLD,
FS_XFLAG_CASENONPRESERVING) in fa->fsx_xflags before the fill
functions run.
Suggested-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Roland Mainz <roland.mainz@nrubsig.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260507-case-sensitivity-v14-1-e62cc8200435@oracle.com
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Raspberry Pi 3B by marking the VEC clk critical so it doesn't get
turned off and hang the bus.
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fix from Stephen Boyd:
"One more fix for the merge window to avoid a boot hang on
Raspberry Pi 3B by marking the VEC clk critical so that it
doesn't get turned off and hang the bus"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: bcm: rpi: Mark VEC clock as CLK_IGNORE_UNUSED
- Drop class_create() for the "tsm" class
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Merge tag 'tsm-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/devsec/tsm
Pull PCIe TSP update from Dan Williams:
"A small update for the TSM core. It is arguably a fix and coming in
late as I have been offline the past few weeks:
- Drop class_create() for the 'tsm' class"
* tag 'tsm-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/devsec/tsm:
virt: coco: change tsm_class to a const struct
- kbuild: builddeb - avoid recompiles for non-cross-compiles
Avoid triggering complete rebuilds for non-cross-compile Debian
package builds by only triggering the rebuild of host tools for
actual cross-compile builds.
- kbuild: Never respect CONFIG_WERROR / W=e to fixdep
Avoid spurious rebuilds of fixdep w/ and w/o -Werror during a single
kbuild invocation by never respecting CONFIG_WERROR for fixdep.
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Mathias Krause <minipli@grsecurity.net>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Thomas Weißschuh <linux@weissschuh.net>
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Merge tag 'kbuild-fixes-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux
Pull Kbuild fixes from Nicolas Schier:
- builddeb - avoid recompiles for non-cross-compiles
Avoid triggering complete rebuilds for non-cross-compile Debian
package builds by only triggering the rebuild of host tools for
actual cross-compile builds
- Never respect CONFIG_WERROR / W=e to fixdep
Avoid spurious rebuilds of fixdep w/ and w/o -Werror during a single
kbuild invocation by never respecting CONFIG_WERROR for fixdep
* tag 'kbuild-fixes-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux:
kbuild: Never respect CONFIG_WERROR / W=e to fixdep
kbuild: builddeb - avoid recompiles for non-cross-compiles
Subsystem:
- add data_race() in rtc_dev_poll()
Drivers:
- remove i2c_match_id usage
- abx80x: Disable alarm feature if no interrupt attached
- ti-k3: support resuming from IO DDR low power mode
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Merge tag 'rtc-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"Subsystem:
- add data_race() in rtc_dev_poll()
Drivers:
- remove i2c_match_id usage
- abx80x: Disable alarm feature if no interrupt attached
- ti-k3: support resuming from IO DDR low power mode"
* tag 'rtc-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
rtc: abx80x: Disable alarm feature if no interrupt attached
rtc: ntxec: fix OF node reference imbalance
rtc: pic32: allow driver to be compiled with COMPILE_TEST
rtc: ti-k3: Add support to resume from IO DDR low power mode
rtc: cmos: Use platform_get_irq_optional() in cmos_platform_probe()
dt-bindings: rtc: add olpc,xo1-rtc to trivial-rtc
dt-bindings: rtc: sc2731: Add compatible for SC2730
rtc: add data_race() in rtc_dev_poll()
rtc: armada38x: zalloc + calloc to single allocation
dt-bindings: rtc: isl12026: convert to YAML schema
dt-bindings: rtc: microcrystal,rv3028: Allow to specify vdd-supply
rtc: max77686: convert to i2c_new_ancillary_device
dt-bindings: rtc: mpfs-rtc: permit resets
rtc: rx8025: Remove use of i2c_match_id()
rtc: rv8803: Remove use of i2c_match_id()
rtc: rs5c372: Remove use of i2c_match_id()
rtc: pcf2127: Remove use of i2c_match_id()
rtc: m41t80: Remove use of i2c_match_id()
rtc: abx80x: Remove use of i2c_match_id()
mentioning separately: Rafael's commit converting tpm_crb from ACPI driver
to a platform driver. Starting from this release cycle, the branch with TPM
changes mirrored to next is 'for-next-tpm', and patches for keys have their
own separate 'for-next-keys' branch.
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Merge tag 'for-next-tpm-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd
Pull tpm updates from Jarkko Sakkinen:
"Here are the accumulated fixes for 7.1-rc1 and a single structural
change worth mentioning separately: Rafael's commit converting tpm_crb
from ACPI driver to a platform driver"
* tag 'for-next-tpm-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
tpm: tpm_tis: stop transmit if retries are exhausted
tpm: tpm_tis: add error logging for data transfer
tpm: avoid -Wunused-but-set-variable
tpm: Use kfree_sensitive() to free auth session in tpm_dev_release()
tpm2-sessions: Fix missing tpm_buf_destroy() in tpm2_read_public()
tpm: Fix auth session leak in tpm2_get_random() error path
tpm: i2c: atmel: fix block comment formatting
tpm_crb: Convert ACPI driver to a platform one
tpm: Make tcpci_pm_ops variable static const
Since v2025.11.22:
Initial SoC Slider support
SoC Slider is an SoC-wide power/performance policy setting.
On SoC Slider systems, EPP plays a diminished role.
Whitespace cleanup via: indent -npro -kr -i8 -ts8 -sob -l160 -ss -ncs -cp1
No functional changes
Signed-off-by: Len Brown <len.brown@intel.com>
x86_energy_perf_policy accesses the SoC Slider via standard
user/kernel APIs to the processor_thermal_soc_slider driver.
Machines that support SoC Slider largely use it instead of EPP,
which may continue to exist in a diminished role, or vanish entirely.
Signed-off-by: Len Brown <len.brown@intel.com>
When processor_thermal_soc_slider is loaded, its slider
and offset modparams are visible. Check that the driver
actually registered the profile named "SoC Slider" before
reading or writing these modparams.
n.b. This utility allows writing the Slider and Offset modparams
even if the driver policy is not "balanced". Currently the
processor_thermal_soc_slider consults those modparams
only in "balanced" mode.
Signed-off-by: Len Brown <len.brown@intel.com>
On Raspberry Pi 3B, the VEC clock is used by the VideoCore firmware
display driver, which remains active until the vc4 driver loads and
sends NOTIFY_DISPLAY_DONE. If this clock is disabled during boot, a bus
lockup happens and the firmware becomes unresponsive, causing a complete
system lockup.
Mark the VEC clock with CLK_IGNORE_UNUSED so it survives the unused
clock disablement and remains available until the vc4 driver takes over
display management.
Fixes: 672299736a ("clk: bcm: rpi: Manage clock rate in prepare/unprepare callbacks")
Reported-by: Mark Brown <broonie@kernel.org>
Closes: https://lore.kernel.org/r/5f0bec08-f458-4fba-8bf3-06817a100c4c@sirena.org.uk
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Link: https://patch.msgid.link/20260401111416.562279-2-mcanal@igalia.com
Tested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Brian Masney <bmasney@redhat.com> # Active contributor to clk
Reviewed-by: Stefan Wahren <wahrenst@gmx.net>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Several development updates for 7.1-rc1:
- fix a race condition handling PG_dcache_clean
- further cleanups for the fault handling, allowing RT to be enabled
- fixing nzones validation in adfs filesystem driver
- fix for module unwinding
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux
Pull ARM updates from Russell King:
- fix a race condition handling PG_dcache_clean
- further cleanups for the fault handling, allowing RT to be enabled
- fixing nzones validation in adfs filesystem driver
- fix for module unwinding
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux:
ARM: 9463/1: Allow to enable RT
ARM: 9472/1: fix race condition on PG_dcache_clean in __sync_icache_dcache()
ARM: 9471/1: module: fix unwind section relocation out of range error
fs/adfs: validate nzones in adfs_validate_bblk()
ARM: provide individual is_translation_fault() and is_permission_fault()
ARM: move FSR fault status definitions before fsr_fs()
ARM: use BIT() and GENMASK() for fault status register fields
ARM: move is_permission_fault() and is_translation_fault() to fault.h
ARM: move vmalloc() lazy-page table population
ARM: ensure interrupts are enabled in __do_user_fault()
- Fix accounting of persistent ring buffer rewind
On boot up, the head page is moved back to the earliest point of
the saved ring buffer. This is because the ring buffer being read by
user space on a crash may not save the part it read. Rewinding the head
page back to the earliest saved position helps keep those events from
being lost.
The number of events is also read during boot up and displayed in the
stats file in the tracefs directory. It's also used for other accounting
as well. On boot up, the "reader page" is accounted for but a rewind may
put it back into the buffer and then the reader page may be accounted
for again.
Save off the original reader page and skip accounting it when scanning
the pages in the ring buffer.
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Merge tag 'trace-ring-buffer-v7.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull ring-buffer fix from Steven Rostedt:
- Fix accounting of persistent ring buffer rewind
On boot up, the head page is moved back to the earliest point of the
saved ring buffer. This is because the ring buffer being read by user
space on a crash may not save the part it read. Rewinding the head
page back to the earliest saved position helps keep those events from
being lost.
The number of events is also read during boot up and displayed in the
stats file in the tracefs directory. It's also used for other
accounting as well. On boot up, the "reader page" is accounted for
but a rewind may put it back into the buffer and then the reader page
may be accounted for again.
Save off the original reader page and skip accounting it when
scanning the pages in the ring buffer.
* tag 'trace-ring-buffer-v7.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
ring-buffer: Do not double count the reader_page
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Merge tag 'block-7.1-20260424' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block fixes from Jens Axboe:
- Series for zloop, fixing a variety of issues
- t10-pi code cleanup
- Fix for a merge window regression with the bio memory allocation mask
- Fix for a merge window regression in ublk, caused by an issue with
the maple tree iteration code at teardown
- ublk self tests additions
- Zoned device pgmap fixes
- Various little cleanups and fixes
* tag 'block-7.1-20260424' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (21 commits)
Revert "floppy: fix reference leak on platform_device_register() failure"
ublk: avoid unpinning pages under maple tree spinlock
ublk: refactor common helper ublk_shmem_remove_ranges()
ublk: fix maple tree lockdep warning in ublk_buf_cleanup
selftests: ublk: add ublk auto integrity test
selftests: ublk: enable test_integrity_02.sh on fio 3.42
selftests: ublk: remove unused argument to _cleanup
block: only restrict bio allocation gfp mask asked to block
block/blk-throttle: Add WQ_PERCPU to alloc_workqueue users
block: Add WQ_PERCPU to alloc_workqueue users
block: relax pgmap check in bio_add_page for compatible zone device pages
block: add pgmap check to biovec_phys_mergeable
floppy: fix reference leak on platform_device_register() failure
ublk: use unchecked copy helpers for bio page data
t10-pi: reduce ref tag code duplication
zloop: remove irq-safe locking
zloop: factor out zloop_mark_{full,empty} helpers
zloop: set RQF_QUIET when completing requests on deleted devices
zloop: improve the unaligned write pointer warning
zloop: use vfs_truncate
...
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Merge tag 'io_uring-7.1-20260424' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring fixes from Jens Axboe:
- Fix for a NOMMU bug with io_uring, where NOMMU doesn't grab page refs
at mmap time. NOMMU also has entirely broken FOLL_PIN support, yet
here we are
- A few fixes covering minor issues introduced in this merge window
- data race annotation to shut up KCSAN for when io-wq limits are
applied
- A nospec addition for direct descriptor file updating. Rest of the
direct descriptor path already had this, but for some reason the
update did not. Now they are all the same
- Various minor defensive changes that claude identified and suggested
terrible fixes for, turned into actually useful cleanups:
- Use kvfree() for the imu cache. These can come from kmalloc or
vmalloc depending on size, but the in-cache ones are capped
where it's always kmalloc based. Change to kvfree() in the
cleanup path, making future changes unlikely to mess that up
- Negative kbuf consumption lengths. Can't happen right now, but
cqe->res is used directly, which if other codes changes could
then be an error value
- Fix for an issue with the futex code, where partial wakes on a
vectored fuxes would potentially wake the same futex twice, rather
than move on to the next one. This could confuse an application as it
would've expected the next futex to have been woken
- Fix for a bug with ring resizing, where SQEs or CQEs might not have
been copied correctly if large SQEs or CQEs are used in the ring.
Application side issue, where SQEs or CQEs might have been lost
during resize
- Fix for a bug where EPOLL_URING_WAKE might have been lost, causing a
multishot poll to not be terminated when it's nested, like it should
have been
- Fix for an issue with signed comparison of poll references for the
slow path
- Fix for a user struct UAF in the zcrx code
- Two minor zcrx cleanups
* tag 'io_uring-7.1-20260424' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
io_uring: take page references for NOMMU pbuf_ring mmaps
io_uring/poll: ensure EPOLL_ONESHOT is propagated for EPOLL_URING_WAKE
io_uring/zcrx: warn on freelist violations
io_uring/zcrx: clear RQ headers on init
io_uring/zcrx: fix user_struct uaf
io_uring/register: fix ring resizing with mixed/large SQEs/CQEs
io_uring/futex: ensure partial wakes are appropriately dequeued
io_uring/rw: add defensive hardening for negative kbuf lengths
io_uring/rsrc: use kvfree() for the imu cache
io_uring/rsrc: unify nospec indexing for direct descriptors
io_uring: fix spurious fput in registered ring path
io_uring: fix iowq_limits data race in tctx node addition
io_uring/tctx: mark io_wq as exiting before error path teardown
io_uring/tctx: check for setup tctx->io_wq before teardown
io_uring/poll: fix signed comparison in io_poll_get_ownership()
Highlights include:
Bugfixes:
- NFS: Fix handling of ENOSPC so that if we have to resend writes, they
are written synchronously.
- SUNRPC: RDMA transport fixes from Chuck
- NFSv4.2: Several fixes for delegated timestamps
- NFSv4: Failure to obtain a directory delegation should not cause
stat() to fail.
- NFSv4: Rename was failing to update timestamps when a directory
delegation is held.
- NFSv4: Ensure we check rsize/wsize after crossing a NFSv4 filesystem
boundary.
- NFSv4/pnfs: If the server is down, retry the layout returns on reboot
- NFSv4/pnfs: Fallback to MDS could result in a short write being
incorrectly logged.
Cleanups:
- NFS: use memcpy_and_pad in decode_fh
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Merge tag 'nfs-for-7.1-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client updates from Trond Myklebust:
"Bugfixes:
- Fix handling of ENOSPC so that if we have to resend writes, they
are written synchronously
- SUNRPC RDMA transport fixes from Chuck
- Several fixes for delegated timestamps in NFSv4.2
- Failure to obtain a directory delegation should not cause stat() to
fail with NFSv4
- Rename was failing to update timestamps when a directory delegation
is held on NFSv4
- Ensure we check rsize/wsize after crossing a NFSv4 filesystem
boundary
- NFSv4/pnfs:
- If the server is down, retry the layout returns on reboot
- Fallback to MDS could result in a short write being incorrectly
logged
Cleanups:
- Use memcpy_and_pad in decode_fh"
* tag 'nfs-for-7.1-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (21 commits)
NFS: Fix RCU dereference of cl_xprt in nfs_compare_super_address
NFS: remove redundant __private attribute from nfs_page_class
NFSv4.2: fix CLONE/COPY attrs in presence of delegated attributes
NFS: fix writeback in presence of errors
nfs: use memcpy_and_pad in decode_fh
NFSv4.1: Apply session size limits on clone path
NFSv4: retry GETATTR if GET_DIR_DELEGATION failed
NFS: fix RENAME attr in presence of directory delegations
pnfs/flexfiles: validate ds_versions_cnt is non-zero
NFS/blocklayout: print each device used for SCSI layouts
xprtrdma: Post receive buffers after RPC completion
xprtrdma: Scale receive batch size with credit window
xprtrdma: Replace rpcrdma_mr_seg with xdr_buf cursor
xprtrdma: Decouple frwr_wp_create from frwr_map
xprtrdma: Close lost-wakeup race in xprt_rdma_alloc_slot
xprtrdma: Avoid 250 ms delay on backlog wakeup
xprtrdma: Close sendctx get/put race that can block a transport
nfs: update inode ctime after removexattr operation
nfs: fix utimensat() for atime with delegated timestamps
NFS: improve "Server wrote zero bytes" error
...
support for per-subvolume data I/O performance and latency tracking
(metadata operations aren't included) and a good variety of fixes and
cleanups across RBD and CephFS.
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Merge tag 'ceph-for-7.1-rc1' of https://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov:
"We have a series from Alex which extends CephFS client metrics with
support for per-subvolume data I/O performance and latency tracking
(metadata operations aren't included) and a good variety of fixes and
cleanups across RBD and CephFS"
* tag 'ceph-for-7.1-rc1' of https://github.com/ceph/ceph-client:
ceph: add subvolume metrics collection and reporting
ceph: parse subvolume_id from InodeStat v9 and store in inode
ceph: handle InodeStat v8 versioned field in reply parsing
libceph: Fix slab-out-of-bounds access in auth message processing
rbd: fix null-ptr-deref when device_add_disk() fails
crush: cleanup in crush_do_rule() method
ceph: clear s_cap_reconnect when ceph_pagelist_encode_32() fails
ceph: only d_add() negative dentries when they are unhashed
libceph: update outdated comment in ceph_sock_write_space()
libceph: Remove obsolete session key alignment logic
ceph: fix num_ops off-by-one when crypto allocation fails
libceph: Prevent potential null-ptr-deref in ceph_handle_auth_reply()
- Fix potential data leakage by zeroing the portion of the straddle block
beyond initialized_size when reading non-resident attributes.
- Remove unnecessary zeroing in ntfs_punch_hole() for ranges beyond
initialized_size, as they are already returned as zeros on read.
- Fix writable check in ntfs_file_mmap_prepare() to correctly handle
shared mappings using VMA_SHARED_BIT | VMA_MAYWRITE_BIT.
- Use page allocation instead of kmemdup() for IOMAP_INLINE data to
ensure page-aligned address and avoid BUG trap in
iomap_inline_data_valid() caused by the page boundary check.
- Add a size check before memory allocation in ntfs_attr_readall() and
reject overly large attributes.
- Remove unneeded noop_direct_IO from ntfs_aops as it is no longer
required following the FMODE_CAN_ODIRECT flag.
- Fix seven static analysis warnings reported by Smatch.
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Merge tag 'ntfs-for-7.1-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/ntfs
Pull ntfs updates from Namjae Jeon:
- Fix potential data leakage by zeroing the portion of the straddle
block beyond initialized_size when reading non-resident attributes
- Remove unnecessary zeroing in ntfs_punch_hole() for ranges beyond
initialized_size, as they are already returned as zeros on read
- Fix writable check in ntfs_file_mmap_prepare() to correctly handle
shared mappings using VMA_SHARED_BIT | VMA_MAYWRITE_BIT
- Use page allocation instead of kmemdup() for IOMAP_INLINE data to
ensure page-aligned address and avoid BUG trap in
iomap_inline_data_valid() caused by the page boundary check
- Add a size check before memory allocation in ntfs_attr_readall() and
reject overly large attributes
- Remove unneeded noop_direct_IO from ntfs_aops as it is no longer
required following the FMODE_CAN_ODIRECT flag
- Fix seven static analysis warnings reported by Smatch
* tag 'ntfs-for-7.1-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/ntfs:
ntfs: use page allocation for resident attribute inline data
ntfs: fix mmap_prepare writable check for shared mappings
ntfs: fix potential 32-bit truncation in ntfs_write_cb()
ntfs: fix uninitialized variable in ntfs_map_runlist_nolock
ntfs: delete dead code
ntfs: add missing error code in ntfs_mft_record_alloc()
ntfs: fix uninitialized variables in ntfs_ea_set_wsl_inode()
ntfs: fix uninitialized pointer in ntfs_write_mft_block
ntfs: fix uninitialized variable in ntfs_write_simple_iomap_begin_non_resident
ntfs: remove noop_direct_IO from address_space_operations
ntfs: limit memory allocation in ntfs_attr_readall
ntfs: not zero out range beyond init in punch_hole
ntfs: zero out stale data in straddle block beyond initialized_size
- some minor cleanup
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Merge tag '9p-for-7.1-rc1' of https://github.com/martinetd/linux
Pull 9p updates from Dominique Martinet:
- 9p access flag fix (cannot change access flag since new mount API implem)
- some minor cleanup
* tag '9p-for-7.1-rc1' of https://github.com/martinetd/linux:
9p/trans_xen: replace simple_strto* with kstrtouint
9p/trans_xen: make cleanup idempotent after dataring alloc errors
9p: document missing enum values in kernel-doc comments
9p: fix access mode flags being ORed instead of replaced
9p: fix memory leak in v9fs_init_fs_context error path
Here is a single SPDX-like change for 7.1-rc1. It explicitly allows the
use of SPDX-FileCopyrightText which has been used already in many files.
At the same time, update checkpatch to catch any "non allowed" spdx
identifiers as we don't want to go overboard here.
This has been in linux-next for a long time with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
Pull SPDX update from Greg KH:
"Here is a single SPDX-like change for 7.1-rc1. It explicitly allows
the use of SPDX-FileCopyrightText which has been used already in many
files.
At the same time, update checkpatch to catch any "non allowed" spdx
identifiers as we don't want to go overboard here.
This has been in linux-next for a long time with no reported problems"
* tag 'spdx-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
LICENSES: Explicitly allow SPDX-FileCopyrightText
Here is the char/misc/iio and other smaller driver subsystem updates for
7.1-rc1. Lots of stuff in here, all tiny, but relevant for the
different drivers they touch. Major points in here is:
- the usual large set of new IIO drivers and updates for that
subsystem (the large majority of this diffstat)
- lots of comedi driver updates and bugfixes
- coresight driver updates
- interconnect driver updates and additions
- mei driver updates
- binder (both rust and C versions) updates and fixes
- lots of other smaller driver subsystem updates and additions
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char / misc / IIO / and others driver updates from Greg KH:
"Here is the char/misc/iio and other smaller driver subsystem updates
for 7.1-rc1. Lots of stuff in here, all tiny, but relevant for the
different drivers they touch. Major points in here is:
- the usual large set of new IIO drivers and updates for that
subsystem (the large majority of this diffstat)
- lots of comedi driver updates and bugfixes
- coresight driver updates
- interconnect driver updates and additions
- mei driver updates
- binder (both rust and C versions) updates and fixes
- lots of other smaller driver subsystem updates and additions
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (405 commits)
coresight: tpdm: fix invalid MMIO access issue
mei: me: add nova lake point H DID
mei: lb: add late binding version 2
mei: bus: add mei_cldev_uuid
w1: ds2490: drop redundant device reference
bus: mhi: host: pci_generic: Add Telit FE912C04 modem support
mei: csc: wake device while reading firmware status
mei: csc: support controller with separate PCI device
mei: convert PCI error to common errno
mei: trace: print return value of pci_cfg_read
mei: me: move trace into firmware status read
mei: fix idle print specifiers
mei: me: use PCI_DEVICE_DATA macro
sonypi: Convert ACPI driver to a platform one
misc: apds990x: fix all kernel-doc warnings
most: usb: Use kzalloc_objs for endpoint address array
hpet: Convert ACPI driver to a platform one
misc: vmw_vmci: Fix spelling mistakes in comments
parport: Remove completed item from to-do list
char: remove unnecessary module_init/exit functions
...
This is quite a big set of fixes, almost all from Johan Hovold who is on
an ongoing quest to clean up issues with probe and removal handling in
drivers. There isn't anything too concerning here especially with the
deregistration stuff which will very rarely get run in production
systems since this is all platform devices in the SoC on embedded
hardware, but it's all real issues which should be fixed. There's more
in flight here.
We also have a few other minor fixes, one from Felix Gu along the same
lines as Johan's work and a couple of documentation things.
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Merge tag 'spi-fix-v7.1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"This is quite a big set of fixes, almost all from Johan Hovold who is
on an ongoing quest to clean up issues with probe and removal handling
in drivers.
There isn't anything too concerning here especially with the
deregistration stuff which will very rarely get run in production
systems since this is all platform devices in the SoC on embedded
hardware, but it's all real issues which should be fixed. There's more
in flight here.
We also have a few other minor fixes, one from Felix Gu along the same
lines as Johan's work and a couple of documentation things"
* tag 'spi-fix-v7.1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (23 commits)
spi: fix controller cleanup() documentation
spi: fix resource leaks on device setup failure
spi: axiado: clean up probe return value
spi: axiado: rename probe error labels
spi: axiado: fix runtime pm imbalance on probe failure
spi: orion: clean up probe return value
spi: orion: fix clock imbalance on registration failure
spi: orion: fix runtime pm leak on unbind
spi: imx: fix runtime pm leak on probe deferral
spi: mpc52xx: fix use-after-free on registration failure
spi: Fix the error description in the `ptp_sts_word_post` comment
spi: topcliff-pch: fix use-after-free on unbind
spi: topcliff-pch: fix controller deregistration
spi: orion: fix controller deregistration
spi: mxic: fix controller deregistration
spi: mpc52xx: fix use-after-free on unbind
spi: mpc52xx: fix controller deregistration
spi: cadence-quadspi: fix controller deregistration
spi: cadence: fix controller deregistration
spi: mtk-snfi: fix memory leak in probe
...
There's just one trivial cleanup of the user visible prompts in Kconfig
here, standardising how we describe Qualcomm.
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Merge tag 'regulator-fix-v7.1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fix from Mark Brown:
"Just one trivial cleanup of the user visible prompts in Kconfig here,
standardising how we describe Qualcomm"
* tag 'regulator-fix-v7.1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: qcom: Unify user-visible "Qualcomm" name
Since the cpu_buffer->reader_page is updated if there are unwound
pages. After that update, we should skip the page if it is the
original reader_page, because the original reader_page is already
checked.
Cc: stable@vger.kernel.org
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Ian Rogers <irogers@google.com>
Link: https://patch.msgid.link/177701353063.2223789.1471163147644103306.stgit@mhiramat.tok.corp.google.com
Fixes: ca296d32ec ("tracing: ring_buffer: Rewind persistent ring buffer on reboot")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
There's couple of patches here that came in since my pull request:
- What is effectively a quirk for shoehorning support for a wider range
of I2C regmaps on weirdly restricted SMBus controllers.
- One minor fix for a memory leak on in error handling in the dummy
driver used by the KUnit tests.
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Merge tag 'regmap-fix-v7.1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap fixes from Mark Brown:
"There's couple of patches here that came in since my pull request:
- What is effectively a quirk for shoehorning support for a wider
range of I2C regmaps on weirdly restricted SMBus controllers
- One minor fix for a memory leak on in error handling in the dummy
driver used by the KUnit tests"
* tag 'regmap-fix-v7.1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: ram: fix memory leaks in __regmap_init_ram() on error
regmap-i2c: add SMBus byte/word reg16 bus for adapters lacking I2C_FUNC_I2C
- fix a regression in gpio-rockchip introduced on older chips during the
merge window when converting to dynamic GPIO base
- fix AST2700 debounce selector bit definitions in gpio-aspeed
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Merge tag 'gpio-fixes-for-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix a regression in gpio-rockchip introduced on older chips during
the merge window when converting to dynamic GPIO base
- fix AST2700 debounce selector bit definitions in gpio-aspeed
* tag 'gpio-fixes-for-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: aspeed: fix AST2700 debounce selector bit definitions
gpio: rockchip: Fix GPIO regression after conversion to dynamic base allocation
Here are the rest of small updates for 7.1-rc1. All small fixes
mostly for device-specific issues or regressions.
* Core:
- Fix a potential data race in fasync handling
* USB-audio:
- New device support: Line6 POD HD PRO, NexiGo N930W webcam
- Fixes for Audio Advantage Micro II SPDIF switch and E-MU sample rates
- Limit UAC2 rate parsing to prevent potential overflows
* HD-Audio:
- Device-specific quirks for HP, Acer, and Honor laptops
- Fix for TAS2781 SPI device abnormal sound
- Move Intel firmware loading into probe work to avoid stalling
* ASoC:
- New support for TI TAS5832
- Fixes for SoundWire SDCA/DisCo boolean parsing
- Driver-specific fixes for Intel SOF, ES8311, RT1320, and PXA2xx
* Misc:
- Fixes for resource leaks and data races in 6fire, caiaq, als4000,
and pcmtest drivers
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Merge tag 'sound-fix-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Here are the rest of small updates for 7.1-rc1. All small fixes mostly
for device-specific issues or regressions.
Core:
- Fix a potential data race in fasync handling
USB-audio:
- New device support: Line6 POD HD PRO, NexiGo N930W webcam
- Fixes for Audio Advantage Micro II SPDIF switch and E-MU sample
rates
- Limit UAC2 rate parsing to prevent potential overflows
HD-Audio:
- Device-specific quirks for HP, Acer, and Honor laptops
- Fix for TAS2781 SPI device abnormal sound
- Move Intel firmware loading into probe work to avoid stalling
ASoC:
- New support for TI TAS5832
- Fixes for SoundWire SDCA/DisCo boolean parsing
- Driver-specific fixes for Intel SOF, ES8311, RT1320, and PXA2xx
Misc:
- Fixes for resource leaks and data races in 6fire, caiaq, als4000,
and pcmtest drivers"
* tag 'sound-fix-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (41 commits)
Revert "ALSA: pcmtest: fix reference leak on failed device registration"
ASoC: tas2781: Add tas5832 support
ASoC: dt-bindings: ti,tas2781: Add TAS5832 support
ALSA: usb-audio: Fix Audio Advantage Micro II SPDIF switch
ALSA: usb-audio: Avoid false E-MU sample-rate notifications
ASoC: sdw_utils: cs42l43: allow spk component names to be combined
ASoC: qcom: x1e80100: limit speaker volumes
ALSA: hda/realtek - Add mute LED support for HP Victus 15-fa2xxx
ALSA: pcmtest: Fix resource leaks in module init error paths
ALSA: usb-audio/line6: Add support for POD HD PRO
ALSA: hda/realtek: Add LED fixup for HP EliteBook 6 G2a Laptops
ASoC: SDCA: Fix reading of mipi-sdca-control-deferrable
regmap: sdw-mbq: Allow defers on undeferrable controls
Revert "ALSA: usb-audio: Add quirk for SmartlinkTechnology M01"
ALSA: als4000: Fix capture trigger chip->mode race
ALSA: core: Fix potential data race at fasync handling
ALSA: hda/tas2781: Fix sound abnormal issue on some SPI device
ALSA: hda/realtek: add quirk for Acer Nitro 16 AN16-41
ALSA: caiaq: Fix control_put() result and cache rollback
ALSA: pcmtest: fix reference leak on failed device registration
...
atomic:
- raise the vblank timeout to avoid it on virtual drivers
- fix colorop duplication
bridge:
- stm_lvds: state check fix
- dw-mipi-dsi: bridge reference leak fix
panel:
- visionx-rm69299: init fix
dma-fence:
- fix sparse warning
dma-buf:
- UAF fix
panthor:
- mapping fix
arcgpu:
- device_node reference leak fix
nouveau:
- memory leak in error path fix
- overflow in reloc path for old hw fix
hv:
- Kconfig fix
v3d:
- infinite loop fix
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Merge tag 'drm-fixes-2026-04-24' of https://gitlab.freedesktop.org/drm/kernel
Pull more drm fixes from Dave Airlie:
"These are the regular fixes that have built up over last couple of
weeks, all pretty minor and spread all over.
atomic:
- raise the vblank timeout to avoid it on virtual drivers
- fix colorop duplication
bridge:
- stm_lvds: state check fix
- dw-mipi-dsi: bridge reference leak fix
panel:
- visionx-rm69299: init fix
dma-fence:
- fix sparse warning
dma-buf:
- UAF fix
panthor:
- mapping fix
arcgpu:
- device_node reference leak fix
nouveau:
- memory leak in error path fix
- overflow in reloc path for old hw fix
hv:
- Kconfig fix
v3d:
- infinite loop fix"
* tag 'drm-fixes-2026-04-24' of https://gitlab.freedesktop.org/drm/kernel:
drm/nouveau: fix u32 overflow in pushbuf reloc bounds check
MAINTAINERS: split hisilicon maintenance and add Yongbang Shi for hibmc-drm matainers
drm/v3d: Reject empty multisync extension to prevent infinite loop
drm/panel: visionox-rm69299: Make use of prepare_prev_first
drm/drm_atomic: duplicate colorop states if plane color pipeline in use
drm/nouveau: fix nvkm_device leak on aperture removal failure
hv: Select CONFIG_SYSFB only for CONFIG_HYPERV_VMBUS
dma-fence: Silence sparse warning in dma_fence_describe
drm/bridge: dw-mipi-dsi: Fix bridge leak when host attach fails
drm/arcpgu: fix device node leak
drm/panthor: Fix outdated function documentation
drm/panthor: Extend VM locked region for remap case to be a superset
dma-buf: fix UAF in dma_buf_put() tracepoint
drm/bridge: stm_lvds: Do not fail atomic_check on disabled connector
drm/atomic: Increase timeout in drm_atomic_helper_wait_for_vblanks()
