Add fs-verity support to f2fs. fs-verity is a filesystem feature that
enables transparent integrity protection and authentication of read-only
files. It uses a dm-verity like mechanism at the file level: a Merkle
tree is used to verify any block in the file in log(filesize) time. It
is implemented mainly by helper functions in fs/verity/. See
Documentation/filesystems/fsverity.rst for the full documentation.
The f2fs support for fs-verity consists of:
- Adding a filesystem feature flag and an inode flag for fs-verity.
- Implementing the fsverity_operations to support enabling verity on an
inode and reading/writing the verity metadata.
- Updating ->readpages() to verify data as it's read from verity files
and to support reading verity metadata pages.
- Updating ->write_begin(), ->write_end(), and ->writepages() to support
writing verity metadata pages.
- Calling the fs-verity hooks for ->open(), ->setattr(), and ->ioctl().
Like ext4, f2fs stores the verity metadata (Merkle tree and
fsverity_descriptor) past the end of the file, starting at the first 64K
boundary beyond i_size. This approach works because (a) verity files
are readonly, and (b) pages fully beyond i_size aren't visible to
userspace but can be read/written internally by f2fs with only some
relatively small changes to f2fs. Extended attributes cannot be used
because (a) f2fs limits the total size of an inode's xattr entries to
4096 bytes, which wouldn't be enough for even a single Merkle tree
block, and (b) f2fs encryption doesn't encrypt xattrs, yet the verity
metadata *must* be encrypted when the file is because it contains hashes
of the plaintext data.
Acked-by: Jaegeuk Kim <jaegeuk@kernel.org>
Acked-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Document the format of verity files on ext4, and the corresponding inode
and superblock flags.
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Make ext4_mpage_readpages() verify data as it is read from fs-verity
files, using the helper functions from fs/verity/.
To support both encryption and verity simultaneously, this required
refactoring the decryption workflow into a generic "post-read
processing" workflow which can do decryption, verification, or both.
The case where the ext4 block size is not equal to the PAGE_SIZE is not
supported yet, since in that case ext4_mpage_readpages() sometimes falls
back to block_read_full_page(), which does not support fs-verity yet.
Co-developed-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Add most of fs-verity support to ext4. fs-verity is a filesystem
feature that enables transparent integrity protection and authentication
of read-only files. It uses a dm-verity like mechanism at the file
level: a Merkle tree is used to verify any block in the file in
log(filesize) time. It is implemented mainly by helper functions in
fs/verity/. See Documentation/filesystems/fsverity.rst for the full
documentation.
This commit adds all of ext4 fs-verity support except for the actual
data verification, including:
- Adding a filesystem feature flag and an inode flag for fs-verity.
- Implementing the fsverity_operations to support enabling verity on an
inode and reading/writing the verity metadata.
- Updating ->write_begin(), ->write_end(), and ->writepages() to support
writing verity metadata pages.
- Calling the fs-verity hooks for ->open(), ->setattr(), and ->ioctl().
ext4 stores the verity metadata (Merkle tree and fsverity_descriptor)
past the end of the file, starting at the first 64K boundary beyond
i_size. This approach works because (a) verity files are readonly, and
(b) pages fully beyond i_size aren't visible to userspace but can be
read/written internally by ext4 with only some relatively small changes
to ext4. This approach avoids having to depend on the EA_INODE feature
and on rearchitecturing ext4's xattr support to support paging
multi-gigabyte xattrs into memory, and to support encrypting xattrs.
Note that the verity metadata *must* be encrypted when the file is,
since it contains hashes of the plaintext data.
This patch incorporates work by Theodore Ts'o and Chandan Rajendra.
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Eric Biggers <ebiggers@google.com>
To meet some users' needs, add optional support for having fs-verity
handle a portion of the authentication policy in the kernel. An
".fs-verity" keyring is created to which X.509 certificates can be
added; then a sysctl 'fs.verity.require_signatures' can be set to cause
the kernel to enforce that all fs-verity files contain a signature of
their file measurement by a key in this keyring.
See the "Built-in signature verification" section of
Documentation/filesystems/fsverity.rst for the full documentation.
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Add SHA-512 support to fs-verity. This is primarily a demonstration of
the trivial changes needed to support a new hash algorithm in fs-verity;
most users will still use SHA-256, due to the smaller space required to
store the hashes. But some users may prefer SHA-512.
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Add a function for filesystems to call to implement the
FS_IOC_MEASURE_VERITY ioctl. This ioctl retrieves the file measurement
that fs-verity calculated for the given file and is enforcing for reads;
i.e., reads that don't match this hash will fail. This ioctl can be
used for authentication or logging of file measurements in userspace.
See the "FS_IOC_MEASURE_VERITY" section of
Documentation/filesystems/fsverity.rst for the documentation.
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Add a function for filesystems to call to implement the
FS_IOC_ENABLE_VERITY ioctl. This ioctl enables fs-verity on a file.
See the "FS_IOC_ENABLE_VERITY" section of
Documentation/filesystems/fsverity.rst for the documentation.
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Add functions that verify data pages that have been read from a
fs-verity file, against that file's Merkle tree. These will be called
from filesystems' ->readpage() and ->readpages() methods.
Since data verification can block, a workqueue is provided for these
methods to enqueue verification work from their bio completion callback.
See the "Verifying data" section of
Documentation/filesystems/fsverity.rst for more information.
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Add a function fsverity_prepare_setattr() which filesystems that support
fs-verity must call to deny truncates of verity files.
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Add the fsverity_file_open() function, which prepares an fs-verity file
to be read from. If not already done, it loads the fs-verity descriptor
from the filesystem and sets up an fsverity_info structure for the inode
which describes the Merkle tree and contains the file measurement. It
also denies all attempts to open verity files for writing.
This commit also begins the include/linux/fsverity.h header, which
declares the interface between fs/verity/ and filesystems.
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Analogous to fs/crypto/, add fields to the VFS inode and superblock for
use by the fs/verity/ support layer:
- ->s_vop: points to the fsverity_operations if the filesystem supports
fs-verity, otherwise is NULL.
- ->i_verity_info: points to cached fs-verity information for the inode
after someone opens it, otherwise is NULL.
- S_VERITY: bit in ->i_flags that identifies verity inodes, even when
they haven't been opened yet and thus still have NULL ->i_verity_info.
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Add the beginnings of the fs/verity/ support layer, including the
Kconfig option and various helper functions for hashing. To start, only
SHA-256 is supported, but other hash algorithms can easily be added.
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Add FS_VERITY_FL to the flags for FS_IOC_GETFLAGS, so that applications
can easily determine whether a file is a verity file at the same time as
they're checking other file flags. This flag will be gettable only;
FS_IOC_SETFLAGS won't allow setting it, since an ioctl must be used
instead to provide more parameters.
This flag matches the on-disk bit that was already allocated for ext4.
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
fs-verity will be jointly maintained by Eric Biggers and Theodore Ts'o.
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
- Disable gcc-based stack variable auto-init under KASAN (Arnd Bergmann)
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Merge tag 'meminit-v5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull structleak fix from Kees Cook:
"Disable gcc-based stack variable auto-init under KASAN (Arnd
Bergmann).
This fixes a bunch of build warnings under KASAN and the
gcc-plugin-based stack auto-initialization features (which are
arguably redundant, so better to let KASAN control this)"
* tag 'meminit-v5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
structleak: disable STRUCTLEAK_BYREF in combination with KASAN_STACK
Here are some small char and misc driver fixes for 5.3-rc2 to resolve
some reported issues.
Nothing major at all, some binder bugfixes for issues found, some new
mei device ids, firmware building warning fixes, habanalabs fixes, a few
other build fixes, and a MAINTAINERS update.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small char and misc driver fixes for 5.3-rc2 to resolve
some reported issues.
Nothing major at all, some binder bugfixes for issues found, some new
mei device ids, firmware building warning fixes, habanalabs fixes, a
few other build fixes, and a MAINTAINERS update.
All of these have been in linux-next with no reported issues"
* tag 'char-misc-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
test_firmware: fix a memory leak bug
hpet: Fix division by zero in hpet_time_div()
eeprom: make older eeprom drivers select NVMEM_SYSFS
vmw_balloon: Remove Julien from the maintainers list
fpga-manager: altera-ps-spi: Fix build error
mei: me: add mule creek canyon (EHL) device ids
binder: prevent transactions to context manager from its own process.
binder: Set end of SG buffer area properly.
firmware: Fix missing inline
firmware: fix build errors in paged buffer handling code
habanalabs: don't reset device when getting VRHOT
habanalabs: use %pad for printing a dma_addr_t
Here are 2 tty/vt patches for 5.3-rc2
- delete the netx-serial driver as the arch has been removed, no need
to keep the serial driver for it around either.
- vt console_lock fix to resolve a reported noisy warning at runtime
Both of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty fixes from Greg KH:
"Here are two tty/vt fixes:
- delete the netx-serial driver as the arch has been removed, no need
to keep the serial driver for it around either.
- vt console_lock fix to resolve a reported noisy warning at runtime
Both of these have been in linux-next with no reported issues"
* tag 'tty-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
vt: Grab console_lock around con_is_bound in show_bind
tty: serial: netx: Delete driver
Here are some small SPDX fixes for 5.3-rc2 for things that came in
during the 5.3-rc1 merge window that we previously missed.
Only 3 small patches here:
- 2 uapi patches to resolve some SPDX tags that were not correct
- fix an invalid SPDX tag in the iomap Makefile file
All have been properly reviewed on the public mailing lists.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
Pull SPDX fixes from Greg KH:
"Here are some small SPDX fixes for 5.3-rc2 for things that came in
during the 5.3-rc1 merge window that we previously missed.
Only three small patches here:
- two uapi patches to resolve some SPDX tags that were not correct
- fix an invalid SPDX tag in the iomap Makefile file
All have been properly reviewed on the public mailing lists"
* tag 'spdx-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
iomap: fix Invalid License ID
treewide: remove SPDX "WITH Linux-syscall-note" from kernel-space headers again
treewide: add "WITH Linux-syscall-note" to SPDX tag of uapi headers
Here are some small fixes for 5.3-rc2. All of these resolve some
reported issues, some more than others :)
Included in here is:
- xhci fix for an annoying issue with odd devices
- reversion of some usb251xb patches that should not have been
merged
- usb pci quirk additions and fixups
- usb storage fix
- usb host controller error test fix
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small fixes for 5.3-rc2. All of these resolve some
reported issues, some more than others :)
Included in here is:
- xhci fix for an annoying issue with odd devices
- reversion of some usb251xb patches that should not have been merged
- usb pci quirk additions and fixups
- usb storage fix
- usb host controller error test fix
All of these have been in linux-next with no reported issues"
* tag 'usb-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
xhci: Fix crash if scatter gather is used with Immediate Data Transfer (IDT).
usb: usb251xb: Reallow swap-dx-lanes to apply to the upstream port
Revert "usb: usb251xb: Add US port lanes inversion property"
Revert "usb: usb251xb: Add US lanes inversion dts-bindings"
usb: wusbcore: fix unbalanced get/put cluster_id
usb/hcd: Fix a NULL vs IS_ERR() bug in usb_hcd_setup_local_mem()
usb-storage: Add a limitation for blk_queue_max_hw_sectors()
usb: pci-quirks: Minor cleanup for AMD PLL quirk
usb: pci-quirks: Correct AMD PLL quirk detection
Here's the first batch of fixes for this release cycle.
Main diffstat here is the re-deletion of netx. I messed up and most
likely didn't remove the files from the index when I test-merged this
and saw conflicts, and from there on out 'git rerere' remembered the
mistake and I missed checking it. Here it's done again as expected.
Besides that:
- A defconfig refresh + enabling of new drivers for u8500
- i.MX fixlets for i2c/SAI/pinmux
- sleep.S build fix for Davinci
- Broadcom devicetree build/warning fix
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Olof Johansson:
"Here's the first batch of fixes for this release cycle.
Main diffstat here is the re-deletion of netx. I messed up and most
likely didn't remove the files from the index when I test-merged this
and saw conflicts, and from there on out 'git rerere' remembered the
mistake and I missed checking it. Here it's done again as expected.
Besides that:
- A defconfig refresh + enabling of new drivers for u8500
- i.MX fixlets for i2c/SAI/pinmux
- sleep.S build fix for Davinci
- Broadcom devicetree build/warning fix"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: defconfig: u8500: Add new drivers
ARM: defconfig: u8500: Refresh defconfig
ARM: dts: bcm: bcm47094: add missing #cells for mdio-bus-mux
ARM: davinci: fix sleep.S build error on ARMv4
arm64: dts: imx8mq: fix SAI compatible
arm64: dts: imx8mm: Correct SAI3 RXC/TXFS pin's mux option #1
ARM: dts: imx6ul: fix clock frequency property name of I2C buses
ARM: Delete netx a second time
ARM: dts: imx7ulp: Fix usb-phy unit address format
Pull x86 fixes from Thomas Gleixner:
"A set of x86 fixes and functional updates:
- Prevent stale huge I/O TLB mappings on 32bit. A long standing bug
which got exposed by KPTI support for 32bit
- Prevent bogus access_ok() warnings in arch_stack_walk_user()
- Add display quirks for Lenovo devices which have height and width
swapped
- Add the missing CR2 fixup for 32 bit async pagefaults. Fallout of
the CR2 bug fix series.
- Unbreak handling of force enabled HPET by moving the 'is HPET
counting' check back to the original place.
- A more accurate check for running on a hypervisor platform in the
MDS mitigation code. Not perfect, but more accurate than the
previous one.
- Update a stale and confusing comment vs. IRQ stacks"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/speculation/mds: Apply more accurate check on hypervisor platform
x86/hpet: Undo the early counter is counting check
x86/entry/32: Pass cr2 to do_async_page_fault()
x86/irq/64: Update stale comment
x86/sysfb_efi: Add quirks for some devices with swapped width and height
x86/stacktrace: Prevent access_ok() warnings in arch_stack_walk_user()
mm/vmalloc: Sync unmappings in __purge_vmap_area_lazy()
x86/mm: Sync also unmappings in vmalloc_sync_all()
x86/mm: Check for pfn instead of page in vmalloc_sync_one()
Pull scheduler fixes from Thomas Gleixner:
"Two fixes for the fair scheduling class:
- Prevent freeing memory which is accessible by concurrent readers
- Make the RCU annotations for numa groups consistent"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Use RCU accessors consistently for ->numa_group
sched/fair: Don't free p->numa_faults with concurrent readers
Pull perf fixes from Thomas Gleixner:
"A pile of perf related fixes:
Kernel:
- Fix SLOTS PEBS event constraints for Icelake CPUs
- Add the missing mask bit to allow counting hardware generated
prefetches on L3 for Icelake CPUs
- Make the test for hypervisor platforms more accurate (as far as
possible)
- Handle PMUs correctly which override event->cpu
- Yet another missing fallthrough annotation
Tools:
perf.data:
- Fix loading of compressed data split across adjacent records
- Fix buffer size setting for processing CPU topology perf.data
header.
perf stat:
- Fix segfault for event group in repeat mode
- Always separate "stalled cycles per insn" line, it was being
appended to the "instructions" line.
perf script:
- Fix --max-blocks man page description.
- Improve man page description of metrics.
- Fix off by one in brstackinsn IPC computation.
perf probe:
- Avoid calling freeing routine multiple times for same pointer.
perf build:
- Do not use -Wshadow on gcc < 4.8, avoiding too strict warnings
treated as errors, breaking the build"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel: Mark expected switch fall-throughs
perf/core: Fix creating kernel counters for PMUs that override event->cpu
perf/x86: Apply more accurate check on hypervisor platform
perf/x86/intel: Fix invalid Bit 13 for Icelake MSR_OFFCORE_RSP_x register
perf/x86/intel: Fix SLOTS PEBS event constraint
perf build: Do not use -Wshadow on gcc < 4.8
perf probe: Avoid calling freeing routine multiple times for same pointer
perf probe: Set pev->nargs to zero after freeing pev->args entries
perf session: Fix loading of compressed data split across adjacent records
perf stat: Always separate stalled cycles per insn
perf stat: Fix segfault for event group in repeat mode
perf tools: Fix proper buffer size for feature processing
perf script: Fix off by one in brstackinsn IPC computation
perf script: Improve man page description of metrics
perf script: Fix --max-blocks man page description
Pull locking fixes from Thomas Gleixner:
"A set of locking fixes:
- Address the fallout of the rwsem rework. Missing ACQUIREs and a
sanity check to prevent a use-after-free
- Add missing checks for unitialized mutexes when mutex debugging is
enabled.
- Remove the bogus code in the generic SMP variant of
arch_futex_atomic_op_inuser()
- Fixup the #ifdeffery in lockdep to prevent compile warnings"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/mutex: Test for initialized mutex
locking/lockdep: Clean up #ifdef checks
locking/lockdep: Hide unused 'class' variable
locking/rwsem: Add ACQUIRE comments
tty/ldsem, locking/rwsem: Add missing ACQUIRE to read_failed sleep loop
lcoking/rwsem: Add missing ACQUIRE to read_slowpath sleep loop
locking/rwsem: Add missing ACQUIRE to read_slowpath exit when queue is empty
locking/rwsem: Don't call owner_on_cpu() on read-owner
futex: Cleanup generic SMP variant of arch_futex_atomic_op_inuser()
Pull objtool fix from Thomas Gleixner:
"A single robustness fix for objtool to handle unbalanced CLAC
invocations under all circumstances"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Improve UACCESS coverage
Hi Linus,
Please, pull the following patches that mark switch cases where we are
expecting to fall through. These patches are part of the ongoing efforts
to enable -Wimplicit-fallthrough. Most of them have been baking in linux-next
for a whole development cycle.
Also, pull the Makefile patch that globally enables the
-Wimplicit-fallthrough option.
Finally, some missing-break fixes that have been tagged for -stable:
- drm/amdkfd: Fix missing break in switch statement
- drm/amdgpu/gfx10: Fix missing break in switch statement
Notice that with these changes, we completely get rid of all the
fall-through warnings in the kernel.
Thanks
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
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Merge tag 'Wimplicit-fallthrough-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
Pull Wimplicit-fallthrough enablement from Gustavo A. R. Silva:
"This marks switch cases where we are expecting to fall through, and
globally enables the -Wimplicit-fallthrough option in the main
Makefile.
Finally, some missing-break fixes that have been tagged for -stable:
- drm/amdkfd: Fix missing break in switch statement
- drm/amdgpu/gfx10: Fix missing break in switch statement
With these changes, we completely get rid of all the fall-through
warnings in the kernel"
* tag 'Wimplicit-fallthrough-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
Makefile: Globally enable fall-through warning
drm/i915: Mark expected switch fall-throughs
drm/amd/display: Mark expected switch fall-throughs
drm/amdkfd/kfd_mqd_manager_v10: Avoid fall-through warning
drm/amdgpu/gfx10: Fix missing break in switch statement
drm/amdkfd: Fix missing break in switch statement
perf/x86/intel: Mark expected switch fall-throughs
mtd: onenand_base: Mark expected switch fall-through
afs: fsclient: Mark expected switch fall-throughs
afs: yfsclient: Mark expected switch fall-throughs
can: mark expected switch fall-throughs
firewire: mark expected switch fall-throughs
- Add ABI to kernel image file which allows e.g. the file utility to figure
out the kernel version.
- Wire up clone3 system call.
- Add support for kasan bitops instrumentation.
- uapi header cleanup: use __u{16,32,64} instead of uint{16,32,64}_t.
- Provide proper ARCH_ZONE_DMA_BITS so the s390 DMA zone is correctly defined
with 2 GB instead of the default value of 1 MB.
- Farhan Ali leaves the group of vfio-ccw maintainers.
- Various small vfio-ccw fixes.
- Add missing locking for airq_areas array in virtio code.
- Minor qdio improvements.
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Merge tag 's390-5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Heiko Carstens:
- Add ABI to kernel image file which allows e.g. the file utility to
figure out the kernel version.
- Wire up clone3 system call.
- Add support for kasan bitops instrumentation.
- uapi header cleanup: use __u{16,32,64} instead of uint{16,32,64}_t.
- Provide proper ARCH_ZONE_DMA_BITS so the s390 DMA zone is correctly
defined with 2 GB instead of the default value of 1 MB.
- Farhan Ali leaves the group of vfio-ccw maintainers.
- Various small vfio-ccw fixes.
- Add missing locking for airq_areas array in virtio code.
- Minor qdio improvements.
* tag 's390-5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
MAINTAINERS: vfio-ccw: Remove myself as the maintainer
s390/mm: use shared variables for sysctl range check
virtio/s390: fix race on airq_areas[]
s390/dma: provide proper ARCH_ZONE_DMA_BITS value
s390/kasan: add bitops instrumentation
s390/bitops: make test functions return bool
s390: wire up clone3 system call
kbuild: enable arch/s390/include/uapi/asm/zcrypt.h for uapi header test
s390: use __u{16,32,64} instead of uint{16,32,64}_t in uapi header
s390/hypfs: fix a typo in the name of a function
s390/qdio: restrict QAOB usage to IQD unicast queues
s390/qdio: add sanity checks to the fast-requeue path
s390: enable detection of kernel version from bzImage
Documentation: fix vfio-ccw doc
vfio-ccw: Update documentation for csch/hsch
vfio-ccw: Don't call cp_free if we are processing a channel program
vfio-ccw: Set pa_nr to 0 if memory allocation fails for pa_iova_pfn
vfio-ccw: Fix memory leak and don't call cp_free in cp_init
vfio-ccw: Fix misleading comment when setting orb.cmd.c64
- Fix mismatches in $id values and actual filenames. Now checked by
tools.
- Convert nvmem binding to DT schema
- Fix a typo in of_property_read_bool() kerneldoc
- Remove some redundant description in al-fic interrupt-controller
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Merge tag 'devicetree-fixes-for-5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree fixes from Rob Herring:
"The nvmem changes would typically go thru Greg's tree, but they were
missed in the merge window. [ Acked by Greg ]
Summary:
- Fix mismatches in $id values and actual filenames. Now checked by
tools.
- Convert nvmem binding to DT schema
- Fix a typo in of_property_read_bool() kerneldoc
- Remove some redundant description in al-fic interrupt-controller"
* tag 'devicetree-fixes-for-5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dt-bindings: Fix more $id value mismatches filenames
dt-bindings: nvmem: SID: Fix the examples node names
dt-bindings: nvmem: Add YAML schemas for the generic NVMEM bindings
of: Fix typo in kerneldoc
dt-bindings: interrupt-controller: al-fic: remove redundant binding
dt-bindings: clk: allwinner,sun4i-a10-ccu: Correct path in $id
- Fix duplicate device_unregister() calls (multiple threads competing to
do unregister work when scheduling device removal from a sysfs attribute
of the self-same device).
- Fix badblocks registration order bug. Ensure region badblocks are
initialized in advance of namespace registration.
- Fix a deadlock between the bus lock and probe operations.
- Export device-core infrastructure to coordinate async operations via
the device ->dead state.
- Add device-core infrastructure to validate device_lock() usage with
lockdep.
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Merge tag 'libnvdimm-fixes-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
"A collection of locking and async operations fixes for v5.3-rc2. These
had been soaking in a branch targeting the merge window, but missed
due to a regression hunt. This fixed up version has otherwise been in
-next this past week with no reported issues.
In order to gain confidence in the locking changes the pull also
includes a debug / instrumentation patch to enable lockdep coverage
for libnvdimm subsystem operations that depend on the device_lock for
exclusion. As mentioned in the changelog it is a hack, but it works
and documents the locking expectations of the sub-system in a way that
others can use lockdep to verify. The driver core touches got an ack
from Greg.
Summary:
- Fix duplicate device_unregister() calls (multiple threads competing
to do unregister work when scheduling device removal from a sysfs
attribute of the self-same device).
- Fix badblocks registration order bug. Ensure region badblocks are
initialized in advance of namespace registration.
- Fix a deadlock between the bus lock and probe operations.
- Export device-core infrastructure to coordinate async operations
via the device ->dead state.
- Add device-core infrastructure to validate device_lock() usage with
lockdep"
* tag 'libnvdimm-fixes-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
driver-core, libnvdimm: Let device subsystems add local lockdep coverage
libnvdimm/bus: Fix wait_nvdimm_bus_probe_idle() ABBA deadlock
libnvdimm/bus: Stop holding nvdimm_bus_list_mutex over __nd_ioctl()
libnvdimm/bus: Prepare the nd_ioctl() path to be re-entrant
libnvdimm/region: Register badblocks before namespaces
libnvdimm/bus: Prevent duplicate device_unregister() calls
drivers/base: Introduce kill_device()
This is unused since commit 9f69a496f1 ("kbuild: split out *.mod out
of {single,multi}-used-m rules").
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Running gen_compile_commands.py after building the kernel with
allnoconfig gave this:
$ ./scripts/gen_compile_commands.py
WARNING: Found 449 entries. Have you compiled the kernel?
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This file is used by clangd to use language server protocol.
It can be generated at each compile using scripts/gen_compile_commands.py.
Therefore it is different depending on the environment and should be
ignored.
Signed-off-by: Toru Komatsu <k0ma@utam0k.jp>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Commit 415008af32 ("docs-rst: convert lsm from DocBook to ReST")
removed the last users of this macro.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Merge tag 'selinux-pr-20190726' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux fix from Paul Moore:
"One small SELinux patch to add some proper bounds/overflow checking
when adding a new sid/secid"
* tag 'selinux-pr-20190726' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: check sidtab limit before adding a new entry
Now that the examples are validated, the examples in the SID binding
generates an error since the node names aren't one of the valid ones.
Let's switch for one that is ok.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Rob Herring <robh@kernel.org>
The nvmem providers and consumers have a bunch of generic properties that
are needed in a device tree. Add a YAML schemas for those.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
[Srini: Changed licence to (GPL-2.0 OR BSD-2-Clause)]
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
"Findfrom" is not a word. Replace the function synopsis by something
that makes sense.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Nine fixes: The most important core one is the dma_max_mapping_size
fix that corrects the boot problem Gunter Roeck was having. A couple
of other driver only fixes are significant, like the cxgbi selector
support addition, the alua 2 second delay and the fdomain build fix.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Nine fixes: The most important core one is the dma_max_mapping_size
fix that corrects the boot problem Gunter Roeck was having. A couple
of other driver only fixes are significant, like the cxgbi selector
support addition, the alua 2 second delay and the fdomain build fix"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: scsi_dh_alua: always use a 2 second delay before retrying RTPG
scsi: ibmvfc: fix WARN_ON during event pool release
scsi: fcoe: fix a typo
scsi: megaraid_sas: Make some functions static
scsi: megaraid_sas: fix panic on loading firmware crashdump
scsi: megaraid_sas: fix spelling mistake "megarid_sas" -> "megaraid_sas"
scsi: core: fix the dma_max_mapping_size call
scsi: fdomain: fix building pcmcia front-end
scsi: target: cxgbit: add support for IEEE_8021QAZ_APP_SEL_STREAM selector
amdgpu:
- fixes for (new in 5.3) hw support (vega20, navi)
- disable RAS
- lots of display fixes all over (audio, DSC, dongle, clock mgr)
ttm:
- fix dma_free_attrs calls to appease dma debugging
msm:
- fixes for dma-api, locking debug and compiler splats
core:
- fix cmdline mode to not apply rotation if not specified (new in 5.3)
- compiler warn fix
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Merge tag 'drm-fixes-2019-07-26' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Daniel Vetter:
"Dave seems to collect an entire streak of things happening, so again
me typing pull summary.
Nothing nefarious here, most of the fixes are for new stuff or things
users won't see. The amd-display patches are a bit different, and very
much look like they should have at least some cc: stable tags. Might
be amd is a bit too comfortable with their internal tree and not
enough looking at upstream. Dave&me are looking into this, in case
something needs rectified with process here.
Also no intel fixes pull, but intel CI is general become rather good,
still I guess expect a notch more for -rc3.
Summary:
amdgpu:
- fixes for (new in 5.3) hw support (vega20, navi)
- disable RAS
- lots of display fixes all over (audio, DSC, dongle, clock mgr)
ttm:
- fix dma_free_attrs calls to appease dma debugging
msm:
- fixes for dma-api, locking debug and compiler splats
core:
- fix cmdline mode to not apply rotation if not specified (new in 5.3)
- compiler warn fix"
* tag 'drm-fixes-2019-07-26' of git://anongit.freedesktop.org/drm/drm: (46 commits)
drm/amd/display: Set enabled to false at start of audio disable
drm/amdgpu/smu: move fan rpm query into the asic specific code
drm/amd/powerplay: custom peak clock freq for navi10
drm: silence variable 'conn' set but not used
drm/msm: stop abusing dma_map/unmap for cache
drm/msm/dpu: Correct dpu encoder spinlock initialization
drm/msm: correct NULL pointer dereference in context_init
drm/amd/display: handle active dongle port type is DP++ or DP case
drm/amd/display: do not read link setting if edp not connected
drm/amd/display: Increase size of audios array
drm/amd/display: drop ASSERT() if eDP panel is not connected
drm/amd/display: Only enable audio if speaker allocation exists
drm/amd/display: Fix dc_create failure handling and 666 color depths
drm/amd/display: allocate 4 ddc engines for RV2
drm/amd/display: put back front end initialization sequence
drm/amd/display: Wait for flip to complete
drm/amd/display: Change min_h_sync_width from 8 to 4
drm/amd/display: use encoder's engine id to find matched free audio device
drm/amd/display: fix DMCU hang when going into Modern Standby
drm/amd/display: Disable Audio on reinitialize hardware
...
We should only set the max segment size to unlimited if we actually
have a virt boundary. Otherwise we accidentally clear that limit
when called from the SCSI midlayer, which always calls
blk_queue_virt_boundary, even if that mask is 0.
Fixes: 7ad388d8e4 ("scsi: core: add a host / host template field for the virt boundary")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
from the massive RST conversion; a few other small fixes as well.
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Merge tag 'docs-5.3-1' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet:
"This is mostly a set of follow-on fixes from Mauro fixing various
fallout from the massive RST conversion; a few other small fixes as
well"
* tag 'docs-5.3-1' of git://git.lwn.net/linux: (21 commits)
docs: phy: Drop duplicate 'be made'
doc:it_IT: translations in process/
docs/vm: transhuge: fix typo in madvise reference
doc:it_IT: rephrase statement
doc:it_IT: align translation to mainline
docs: load_config.py: ensure subdirs end with "/"
docs: virtual: add it to the documentation body
docs: remove extra conf.py files
docs: load_config.py: avoid needing a conf.py just due to LaTeX docs
scripts/sphinx-pre-install: seek for Noto CJK fonts for pdf output
scripts/sphinx-pre-install: cleanup Gentoo checks
scripts/sphinx-pre-install: fix latexmk dependencies
scripts/sphinx-pre-install: don't use LaTeX with CentOS 7
scripts/sphinx-pre-install: fix script for RHEL/CentOS
docs: conf.py: only use CJK if the font is available
docs: conf.py: add CJK package needed by translations
docs: pdf: add all Documentation/*/index.rst to PDF output
docs: fix broken doc references due to renames
docs: power: add it to to the main documentation index
docs: powerpc: convert docs to ReST and rename to *.rst
...
- Big bad batch of MAINTAINERS updates
- Fix handling of SP alignment fault exceptions
- Fix PSTATE.SSBS handling on heterogeneous systems
- Fix fallout from moving to the generic vDSO implementation
- Fix stack unwinding in the face of frame corruption
- Fix off-by-one in IORT code
- Minor SVE cleanups
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"There's more here than we usually have at this stage, but that's
mainly down to the stacktrace changes which came in slightly too late
for the merge window.
Summary:
- Big bad batch of MAINTAINERS updates
- Fix handling of SP alignment fault exceptions
- Fix PSTATE.SSBS handling on heterogeneous systems
- Fix fallout from moving to the generic vDSO implementation
- Fix stack unwinding in the face of frame corruption
- Fix off-by-one in IORT code
- Minor SVE cleanups"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
ACPI/IORT: Fix off-by-one check in iort_dev_find_its_id()
arm64: entry: SP Alignment Fault doesn't write to FAR_EL1
arm64: Force SSBS on context switch
MAINTAINERS: Update my email address
MAINTAINERS: Update my email address
MAINTAINERS: Fix spelling mistake in my name
MAINTAINERS: Update my email address to @kernel.org
arm64: mm: Drop pte_huge()
arm64/sve: Fix a couple of magic numbers for the Z-reg count
arm64/sve: Factor out FPSIMD to SVE state conversion
arm64: stacktrace: Better handle corrupted stacks
arm64: stacktrace: Factor out backtrace initialisation
arm64: stacktrace: Constify stacktrace.h functions
arm64: vdso: Cleanup Makefiles
arm64: vdso: fix flip/flop vdso build bug
arm64: vdso: Fix population of AT_SYSINFO_EHDR for compat vdso
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Merge tag 'for-5.3-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"Two regression fixes:
- hangs caused by a missing barrier in the locking code
- memory leaks of extent_state due to bad handling of a cached
pointer"
* tag 'for-5.3-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix extent_state leak in btrfs_lock_and_flush_ordered_range
btrfs: Fix deadlock caused by missing memory barrier
