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Commits on Jan 24, 2022

  1. powerpc: Select ARCH_WANTS_MODULES_DATA_IN_VMALLOC on book3s/32 and 8xx

    book3s/32 and 8xx have a separate area for allocating modules,
    defined by MODULES_VADDR / MODULES_END.
    
    On book3s/32, it is not possible to protect against execution
    on a page basis. A full 256M segment is either Exec or NoExec.
    The module area is in an Exec segment while vmalloc area is
    in a NoExec segment.
    
    In order to protect module data against execution, select
    ARCH_WANTS_MODULES_DATA_IN_VMALLOC.
    
    For the 8xx (and possibly other 32 bits platform in the future),
    there is no such constraint on Exec/NoExec protection, however
    there is a critical distance between kernel functions and callers
    that needs to remain below 32Mbytes in order to avoid costly
    trampolines. By allocating data outside of module area, we
    increase the chance for module text to remain within acceptable
    distance from kernel core text.
    
    So select ARCH_WANTS_MODULES_DATA_IN_VMALLOC for 8xx as well.
    
    Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
    Cc: Michael Ellerman <mpe@ellerman.id.au>
    Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Cc: Paul Mackerras <paulus@samba.org>
    chleroy authored and intel-lab-lkp committed Jan 24, 2022
  2. modules: Add CONFIG_ARCH_WANTS_MODULES_DATA_IN_VMALLOC

    Add CONFIG_ARCH_WANTS_MODULES_DATA_IN_VMALLOC to allow architectures
    to request having modules data in vmalloc area instead of module area.
    
    This is required on powerpc book3s/32 in order to set data non
    executable, because it is not possible to set executability on page
    basis, this is done per 256 Mbytes segments. The module area has exec
    right, vmalloc area has noexec.
    
    This can also be useful on other powerpc/32 in order to maximize the
    chance of code being close enough to kernel core to avoid branch
    trampolines.
    
    Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
    Cc: Jason Wessel <jason.wessel@windriver.com>
    Cc: Daniel Thompson <daniel.thompson@linaro.org>
    Cc: Douglas Anderson <dianders@chromium.org>
    chleroy authored and intel-lab-lkp committed Jan 24, 2022
  3. modules: Introduce data_layout

    In order to allow separation of data from text, add another layout,
    called data_layout. For architectures requesting separation of text
    and data, only text will go in core_layout and data will go in
    data_layout.
    
    For architectures which keep text and data together, make data_layout
    an alias of core_layout, that way data_layout can be used for all
    data manipulations, regardless of whether data is in core_layout or
    data_layout.
    
    Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
    chleroy authored and intel-lab-lkp committed Jan 24, 2022
  4. modules: Prepare for handling several RB trees

    In order to separate text and data, we need to setup
    two rb trees. So modify functions to give the tree
    as a parameter.
    
    Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
    chleroy authored and intel-lab-lkp committed Jan 24, 2022
  5. modules: Always have struct mod_tree_root

    In order to separate text and data, we need to setup
    two rb trees.
    
    This also means that struct mod_tree_root is required even without
    MODULES_TREE_LOOKUP.
    
    Also remove module_addr_min and module_addr_max as there will
    be one min and one max for each tree.
    
    Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
    chleroy authored and intel-lab-lkp committed Jan 24, 2022
  6. modules: Add within_module_text() macro

    Add a macro to check whether an address is within module's text.
    
    Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
    chleroy authored and intel-lab-lkp committed Jan 24, 2022
  7. modules: Refactor within_module_core() and within_module_init()

    within_module_core() and within_module_init() are doing the exact same
    test, one on core_layout, the second on init_layout.
    
    In preparation of increasing the complexity of that verification,
    refactor it into a single function called within_module_layout().
    
    Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
    chleroy authored and intel-lab-lkp committed Jan 24, 2022

Commits on Jan 14, 2022

  1. module: fix signature check failures when using in-kernel decompression

    The new flag MODULE_INIT_COMPRESSED_FILE unintentionally trips check in
    module_sig_check(). The check was supposed to catch case when version
    info or magic was removed from a signed module, making signature
    invalid, but it was coded too broadly and was catching this new flag as
    well.
    
    Change the check to only test the 2 particular flags affecting signature
    validity.
    
    Fixes: b1ae6dc ("module: add in-kernel support for decompressing")
    Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
    Reviewed-by: Douglas Anderson <dianders@chromium.org>
    Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
    dtor authored and mcgrof committed Jan 14, 2022

Commits on Jan 13, 2022

  1. kernel: Fix spelling mistake "compresser" -> "compressor"

    There is a spelling mistake in a pr_err error message. Fix it.
    
    Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
    Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
    ColinIanKing authored and mcgrof committed Jan 13, 2022

Commits on Jan 12, 2022

  1. MAINTAINERS: add mailing lists for kmod and modules

    Add the linux-modules list for kmod and linux modules changes.
    
    Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
    mcgrof committed Jan 12, 2022
  2. module.h: allow #define strings to work with MODULE_IMPORT_NS

    The MODULE_IMPORT_NS() macro does not allow defined strings to work
    properly with it, so add a layer of indirection to allow this to happen.
    
    Cc: Luis Chamberlain <mcgrof@kernel.org>
    Cc: Jessica Yu <jeyu@kernel.org>
    Cc: Matthias Maennich <maennich@google.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Reviewed-by: Matthias Maennich <maennich@google.com>
    Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
    gregkh authored and mcgrof committed Jan 12, 2022
  3. module: add in-kernel support for decompressing

    Current scheme of having userspace decompress kernel modules before
    loading them into the kernel runs afoul of LoadPin security policy, as
    it loses link between the source of kernel module on the disk and binary
    blob that is being loaded into the kernel. To solve this issue let's
    implement decompression in kernel, so that we can pass a file descriptor
    of compressed module file into finit_module() which will keep LoadPin
    happy.
    
    To let userspace know what compression/decompression scheme kernel
    supports it will create /sys/module/compression attribute. kmod can read
    this attribute and decide if it can pass compressed file to
    finit_module(). New MODULE_INIT_COMPRESSED_DATA flag indicates that the
    kernel should attempt to decompress the data read from file descriptor
    prior to trying load the module.
    
    To simplify things kernel will only implement single decompression
    method matching compression method selected when generating modules.
    This patch implements gzip and xz; more can be added later,
    
    Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
    Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
    dtor authored and mcgrof committed Jan 12, 2022
  4. MAINTAINERS: Remove myself as modules maintainer

    Luis has done a great job maintaining modules so far. As I'm planning to
    take a break from work soon, I think we're ready to transition over fully.
    
    Signed-off-by: Jessica Yu <jeyu@kernel.org>
    Acked-by: Lucas De Marchi <lucas.demarchi@intel.com>
    Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
    flaming-toast authored and mcgrof committed Jan 12, 2022
  5. module: Remove outdated comment

    Since commit e513cc1 ("module: Remove stop_machine from module
    unloading") this comment is no longer correct. Remove it.
    
    Signed-off-by: Yu Chen <chen.yu@easystack.cn>
    Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
    Yu Chen authored and mcgrof committed Jan 12, 2022
  6. Merge tag 'locking_core_for_v5.17_rc1' of git://git.kernel.org/pub/sc…

    …m/linux/kernel/git/tip/tip
    
    Pull locking updates from Borislav Petkov:
     "Lots of cleanups and preparation. Highlights:
    
       - futex: Cleanup and remove runtime futex_cmpxchg detection
    
       - rtmutex: Some fixes for the PREEMPT_RT locking infrastructure
    
       - kcsan: Share owner_on_cpu() between mutex,rtmutex and rwsem and
         annotate the racy owner->on_cpu access *once*.
    
       - atomic64: Dead-Code-Elemination"
    
    [ Description above by Peter Zijlstra ]
    
    * tag 'locking_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
      locking/atomic: atomic64: Remove unusable atomic ops
      futex: Fix additional regressions
      locking: Allow to include asm/spinlock_types.h from linux/spinlock_types_raw.h
      x86/mm: Include spinlock_t definition in pgtable.
      locking: Mark racy reads of owner->on_cpu
      locking: Make owner_on_cpu() into <linux/sched.h>
      lockdep/selftests: Adapt ww-tests for PREEMPT_RT
      lockdep/selftests: Skip the softirq related tests on PREEMPT_RT
      lockdep/selftests: Unbalanced migrate_disable() & rcu_read_lock().
      lockdep/selftests: Avoid using local_lock_{acquire|release}().
      lockdep: Remove softirq accounting on PREEMPT_RT.
      locking/rtmutex: Add rt_mutex_lock_nest_lock() and rt_mutex_lock_killable().
      locking/rtmutex: Squash self-deadlock check for ww_rt_mutex.
      locking: Remove rt_rwlock_is_contended().
      sched: Trigger warning if ->migration_disabled counter underflows.
      futex: Fix sparc32/m68k/nds32 build regression
      futex: Remove futex_cmpxchg detection
      futex: Ensure futex_atomic_cmpxchg_inatomic() is present
      kernel/locking: Use a pointer in ww_mutex_trylock().
    torvalds committed Jan 12, 2022
  7. Merge tag 'sched_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/…

    …linux/kernel/git/tip/tip
    
    Pull scheduler updates from Borislav Petkov:
     "Mostly minor things this time; some highlights:
    
       - core-sched: Add 'Forced Idle' accounting; this allows to track how
         much CPU time is 'lost' due to core scheduling constraints.
    
       - psi: Fix for MEM_FULL; a task running reclaim would be counted as a
         runnable task and prevent MEM_FULL from being reported.
    
       - cpuacct: Long standing fixes for some cgroup accounting issues.
    
       - rt: Bandwidth timer could, under unusual circumstances, be failed
         to armed, leading to indefinite throttling."
    
    [ Description above by Peter Zijlstra ]
    
    * tag 'sched_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
      sched/fair: Replace CFS internal cpu_util() with cpu_util_cfs()
      sched/fair: Cleanup task_util and capacity type
      sched/rt: Try to restart rt period timer when rt runtime exceeded
      sched/fair: Document the slow path and fast path in select_task_rq_fair
      sched/fair: Fix per-CPU kthread and wakee stacking for asym CPU capacity
      sched/fair: Fix detection of per-CPU kthreads waking a task
      sched/cpuacct: Make user/system times in cpuacct.stat more precise
      sched/cpuacct: Fix user/system in shown cpuacct.usage*
      cpuacct: Convert BUG_ON() to WARN_ON_ONCE()
      cputime, cpuacct: Include guest time in user time in cpuacct.stat
      psi: Fix PSI_MEM_FULL state when tasks are in memstall and doing reclaim
      sched/core: Forced idle accounting
      psi: Add a missing SPDX license header
      psi: Remove repeated verbose comment
    torvalds committed Jan 12, 2022
  8. Merge tag 'Wcast-function-type-5.17-rc1' of git://git.kernel.org/pub/…

    …scm/linux/kernel/git/gustavoars/linux
    
    Pull cast-function-type warning addition from Gustavo A. R. Silva:
     "This globally enables -Wcast-function-type.
    
      We need to make sure new function cast mismatches are not introduced
      in the kernel in order to avoid tripping CFI checking"
    
    * tag 'Wcast-function-type-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
      Makefile: Enable -Wcast-function-type
    torvalds committed Jan 12, 2022
  9. Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

    Pull ARM updates from Russell King:
    
     - amba bus irq rework
    
     - add kfence support
    
     - support for Cortex M33 and M55 CPUs
    
     - kbuild updates for decompressor
    
     - let core code manage thread_info::cpu
    
     - avoid unpredictable NOP encoding in decompressor
    
     - reduce information printed in calltraces
    
    * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
      ARM: reduce the information printed in call traces
      ARM: 9168/1: Add support for Cortex-M55 processor
      ARM: 9167/1: Add support for Cortex-M33 processor
      ARM: 9166/1: Support KFENCE for ARM
      ARM: 9165/1: mm: Provide is_write_fault()
      ARM: 9164/1: mm: Provide set_memory_valid()
      ARM: 9163/1: amba: Move of_amba_device_decode_irq() into amba_probe()
      ARM: 9162/1: amba: Kill sysfs attribute file of irq
      ARM: 9161/1: mm: mark private VM_FAULT_X defines as vm_fault_t
      ARM: 9159/1: decompressor: Avoid UNPREDICTABLE NOP encoding
      ARM: 9158/1: leave it to core code to manage thread_info::cpu
      ARM: 9154/1: decompressor: do not copy source files while building
    torvalds committed Jan 12, 2022

Commits on Jan 11, 2022

  1. Merge tag 'for-5.17/parisc-1' of git://git.kernel.org/pub/scm/linux/k…

    …ernel/git/deller/parisc-linux
    
    Pull parisc architecture updates from Helge Deller:
    
     - Fix lpa and lpa_user defines (John David Anglin)
    
     - Fix symbol lookup of init functions with an __is_kernel() fix (Helge
       Deller)
    
     - Fix wrong pdc_toc_pim_11 and pdc_toc_pim_20 definitions (Helge
       Deller)
    
     - Add lws_atomic_xchg and lws_atomic_store syscalls (John David Anglin)
    
     - Rewrite light-weight syscall and futex code (John David Anglin)
    
     - Enable TOC (transfer of contents) feature unconditionally (Helge
       Deller)
    
     - Improve fault handler messages (John David Anglin)
    
     - Improve build process (Masahiro Yamada)
    
     - Reduce kernel code footprint of user access functions (Helge Deller)
    
     - Fix build error due to outX() macros (Bart Van Assche)
    
     - Ue default_groups in kobj_type in pdc_stable (Greg Kroah-Hartman)
    
     - Default to 16 CPUs on 32-bit kernel (Helge Deller)
    
    * tag 'for-5.17/parisc-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
      parisc: Default to 16 CPUs on 32-bit kernel
      sections: Fix __is_kernel() to include init ranges
      parisc: Re-use toc_stack as hpmc_stack
      parisc: Enable TOC (transfer of contents) feature unconditionally
      parisc: io: Improve the outb(), outw() and outl() macros
      parisc: pdc_stable: use default_groups in kobj_type
      parisc: Add kgdb io_module to read chars via PDC
      parisc: Fix pdc_toc_pim_11 and pdc_toc_pim_20 definitions
      parisc: Add lws_atomic_xchg and lws_atomic_store syscalls
      parisc: Rewrite light-weight syscall and futex code
      parisc: Enhance page fault termination message
      parisc: Don't call faulthandler_disabled() in do_page_fault()
      parisc: Switch user access functions to signal errors in r29 instead of r8
      parisc: Avoid calling faulthandler_disabled() twice
      parisc: Fix lpa and lpa_user defines
      parisc: Define depi_safe macro
      parisc: decompressor: do not copy source files while building
    torvalds committed Jan 11, 2022
  2. Merge tag 'x86_build_for_v5.17_rc1-p2' of git://git.kernel.org/pub/sc…

    …m/linux/kernel/git/tip/tip
    
    Pull missed x86 build updates from Borislav Petkov:
     "In the heat of the battle between me and the tip pull requests, I've
      sent you the tip:x86/build branch without the two top-most commits
      from Ingo (it appears I hadn't fast-forwarded my local branch, sorry
      about that).
    
      Therefore, here's a part 2 of x86/build for 5.17.
    
       - Make x86 defconfigs more useful by enabling
         CONFIG_LOCALVERSION_AUTO and CONFIG_KALLSYMS_ALL
    
      And while you merge that, I'll be at the blackboard, writing:
    
        I will always fast-forward local branches before tagging and sending pull requests to Linus.
        I will always fast-forward local branches before tagging and sending pull requests to Linus.
        I will always fast-forward local branches before tagging and sending pull requests..."
    
    * tag 'x86_build_for_v5.17_rc1-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
      x86/kbuild: Enable CONFIG_KALLSYMS_ALL=y in the defconfigs
      x86/defconfig: Enable CONFIG_LOCALVERSION_AUTO=y in the defconfig
    torvalds committed Jan 11, 2022
  3. Merge tag 'efi-next-for-v5.17' of git://git.kernel.org/pub/scm/linux/…

    …kernel/git/efi/efi
    
    Pull EFI updates from Ard Biesheuvel:
    
     - support taking the measurement of the initrd when loaded via the
       LoadFile2 protocol
    
     - kobject API cleanup from Greg
    
     - some header file whitespace fixes
    
    * tag 'efi-next-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
      efi: use default_groups in kobj_type
      efi/libstub: measure loaded initrd info into the TPM
      efi/libstub: consolidate initrd handling across architectures
      efi/libstub: x86/mixed: increase supported argument count
      efi/libstub: add prototype of efi_tcg2_protocol::hash_log_extend_event()
      include/linux/efi.h: Remove unneeded whitespaces before tabs
    torvalds committed Jan 11, 2022
  4. Merge tag 'for-linus-5.17-rc1' of git://git.kernel.org/pub/scm/linux/…

    …kernel/git/rw/uml
    
    Pull UML updates from Richard Weinberger:
    
     - set_fs removal
    
     - Devicetree support
    
     - Many cleanups from Al
    
     - Various virtio and build related fixes
    
    * tag 'for-linus-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: (31 commits)
      um: virtio_uml: Allow probing from devicetree
      um: Add devicetree support
      um: Extract load file helper from initrd.c
      um: remove set_fs
      hostfs: Fix writeback of dirty pages
      um: Use swap() to make code cleaner
      um: header debriding - sigio.h
      um: header debriding - os.h
      um: header debriding - net_*.h
      um: header debriding - mem_user.h
      um: header debriding - activate_ipi()
      um: common-offsets.h debriding...
      um, x86: bury crypto_tfm_ctx_offset
      um: unexport handle_page_fault()
      um: remove a dangling extern of syscall_trace()
      um: kill unused cpu()
      uml/i386: missing include in barrier.h
      um: stop polluting the namespace with registers.h contents
      logic_io instance of iounmap() needs volatile on argument
      um: move amd64 variant of mmap(2) to arch/x86/um/syscalls_64.c
      ...
    torvalds committed Jan 11, 2022
  5. Merge tag 'for-linus-5.17-rc1' of git://git.kernel.org/pub/scm/linux/…

    …kernel/git/rw/ubifs
    
    Pull JFFS2, UBI and UBIFS updates from Richard Weinberger:
     "JFFS2:
       - Fix for a deadlock in jffs2_write_begin()
    
      UBI:
       - Fixes in comments
    
      UBIFS:
       - Expose error counters in sysfs
       - Many bugfixes found by Hulk Robot and others"
    
    * tag 'for-linus-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs:
      jffs2: GC deadlock reading a page that is used in jffs2_write_begin()
      ubifs: read-only if LEB may always be taken in ubifs_garbage_collect
      ubifs: fix double return leb in ubifs_garbage_collect
      ubifs: fix slab-out-of-bounds in ubifs_change_lp
      ubifs: fix snprintf() length check
      ubifs: Document sysfs nodes
      ubifs: Export filesystem error counters
      ubifs: Error path in ubifs_remount_rw() seems to wrongly free write buffers
      ubifs: Make use of the helper macro kthread_run()
      ubi: Fix a mistake in comment
      ubifs: Fix spelling mistakes
    torvalds committed Jan 11, 2022
  6. Merge tag 'dlm-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git…

    …/teigland/linux-dlm
    
    Pull dlm updates from David Teigland:
     "This set includes the normal collection of minor fixes and cleanups,
      new kmem caches for network messaging structs, a start on some basic
      tracepoints, and some new debugfs files for inserting test messages"
    
    * tag 'dlm-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm: (32 commits)
      fs: dlm: print cluster addr if non-cluster node connects
      fs: dlm: memory cache for lowcomms hotpath
      fs: dlm: memory cache for writequeue_entry
      fs: dlm: memory cache for midcomms hotpath
      fs: dlm: remove wq_alloc mutex
      fs: dlm: use event based wait for pending remove
      fs: dlm: check for pending users filling buffers
      fs: dlm: use list_empty() to check last iteration
      fs: dlm: fix build with CONFIG_IPV6 disabled
      fs: dlm: replace use of socket sk_callback_lock with sock_lock
      fs: dlm: don't call kernel_getpeername() in error_report()
      fs: dlm: fix potential buffer overflow
      fs: dlm:Remove unneeded semicolon
      fs: dlm: remove double list_first_entry call
      fs: dlm: filter user dlm messages for kernel locks
      fs: dlm: add lkb waiters debugfs functionality
      fs: dlm: add lkb debugfs functionality
      fs: dlm: allow create lkb with specific id range
      fs: dlm: add debugfs rawmsg send functionality
      fs: dlm: let handle callback data as void
      ...
    torvalds committed Jan 11, 2022
  7. Merge tag 'gfs2-v5.16-rc3-fixes' of git://git.kernel.org/pub/scm/linu…

    …x/kernel/git/gfs2/linux-gfs2
    
    Pull gfs2 updates from Andreas Gruenbacher:
     "Various minor gfs2 cleanups and fixes"
    
    * tag 'gfs2-v5.16-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
      gfs2: dump inode object for iopen glocks
      gfs2: Fix gfs2_instantiate description
      gfs2: Remove redundant check for GLF_INSTANTIATE_NEEDED
      gfs2: remove redundant set of INSTANTIATE_NEEDED
      gfs2: Fix __gfs2_holder_init function name in kernel-doc comment
    torvalds committed Jan 11, 2022
  8. Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kern…

    …el/git/tytso/ext4
    
    Pull ext4 updates from Ted Ts'o:
     "Convert ext4 to use the new mount API, and add support for the
      FS_IOC_GETFSLABEL and FS_IOC_SETFSLABEL ioctls.
    
      In addition the usual large number of clean ups and bug fixes, in
      particular for the fast_commit feature"
    
    * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (48 commits)
      ext4: don't use the orphan list when migrating an inode
      ext4: use BUG_ON instead of if condition followed by BUG
      ext4: fix a copy and paste typo
      ext4: set csum seed in tmp inode while migrating to extents
      ext4: remove unnecessary 'offset' assignment
      ext4: remove redundant o_start statement
      ext4: drop an always true check
      ext4: remove unused assignments
      ext4: remove redundant statement
      ext4: remove useless resetting io_end_size in mpage_process_page()
      ext4: allow to change s_last_trim_minblks via sysfs
      ext4: change s_last_trim_minblks type to unsigned long
      ext4: implement support for get/set fs label
      ext4: only set EXT4_MOUNT_QUOTA when journalled quota file is specified
      ext4: don't use kfree() on rcu protected pointer sbi->s_qf_names
      ext4: avoid trim error on fs with small groups
      ext4: fix an use-after-free issue about data=journal writeback mode
      ext4: fix null-ptr-deref in '__ext4_journal_ensure_credits'
      ext4: initialize err_blk before calling __ext4_get_inode_loc
      ext4: fix a possible ABBA deadlock due to busy PA
      ...
    torvalds committed Jan 11, 2022
  9. Merge tag 'xfs-5.17-merge-2' of git://git.kernel.org/pub/scm/fs/xfs/x…

    …fs-linux
    
    Pull xfs updates from Darrick Wong:
     "The big new feature here is that the mount code now only bothers to
      try to free stale COW staging extents if the fs unmounted uncleanly.
      This should reduce mount times, particularly on filesystems supporting
      reflink and containing a large number of allocation groups.
    
      Everything else this cycle are bugfixes, as the iomap folios
      conversion should be plenty enough excitement for anyone. That and I
      ran out of brain bandwidth after Thanksgiving last year.
    
      Summary:
    
       - Fix log recovery with da btree buffers when metauuid is in use.
    
       - Fix type coercion problems in xattr buffer size validation.
    
       - Fix a bug in online scrub dir leaf bestcount checking.
    
       - Only run COW recovery when recovering the log.
    
       - Fix symlink target buffer UAF problems and symlink locking problems
         by not exposing xfs innards to the VFS.
    
       - Fix incorrect quotaoff lock usage.
    
       - Don't let transactions cancel cleanly if they have deferred work
         items attached.
    
       - Fix a UAF when we're deciding if we need to relog an intent item.
    
       - Reduce kvmalloc overhead for log shadow buffers.
    
       - Clean up sysfs attr group usage.
    
       - Fix a bug where scrub's bmap/rmap checking could race with a quota
         file block allocation due to insufficient locking.
    
       - Teach scrub to complain about invalid project ids"
    
    * tag 'xfs-5.17-merge-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
      xfs: warn about inodes with project id of -1
      xfs: hold quota inode ILOCK_EXCL until the end of dqalloc
      xfs: Remove redundant assignment of mp
      xfs: reduce kvmalloc overhead for CIL shadow buffers
      xfs: sysfs: use default_groups in kobj_type
      xfs: prevent UAF in xfs_log_item_in_current_chkpt
      xfs: prevent a WARN_ONCE() in xfs_ioc_attr_list()
      xfs: Fix comments mentioning xfs_ialloc
      xfs: check sb_meta_uuid for dabuf buffer recovery
      xfs: fix a bug in the online fsck directory leaf1 bestcount check
      xfs: only run COW extent recovery when there are no live extents
      xfs: don't expose internal symlink metadata buffers to the vfs
      xfs: fix quotaoff mutex usage now that we don't support disabling it
      xfs: shut down filesystem if we xfs_trans_cancel with deferred work items
    torvalds committed Jan 11, 2022
  10. Merge tag 'for-5.17-tag' of git://git.kernel.org/pub/scm/linux/kernel…

    …/git/kdave/linux
    
    Pull btrfs updates from David Sterba:
     "This end of the year branch is intentionally not that exciting. Most
      of the changes are under the hood, but there are some minor user
      visible improvements and several performance improvements too.
    
      Features:
    
       - make send work with concurrent block group relocation.
    
         We're not allowed to prevent send failing or silently producing
         some bad stream but with more fine grained locking and checks it's
         possible. The send vs deduplication exclusion could reuse the same
         logic in the future.
    
       - new exclusive operation 'balance paused' to allow adding a device
         to filesystem with paused balance
    
       - new sysfs file for fsid stored in the per-device directory to help
         distinguish devices when seeding is enabled, the fsid may differ
         from the one reported by the filesystem
    
      Performance improvements:
    
       - less metadata needed for directory logging, directory deletion is
         20-40% faster
    
       - in zoned mode, cache zone information during mount to speed up
         repeated queries (about 50% speedup)
    
       - free space tree entries get indexed and searched by size (latency
         -30%, search run time -30%)
    
       - less contention in tree node locking when inserting a key and no
         splits are needed (files/sec in fsmark improves by 1-20%)
    
      Fixes:
    
       - fix ENOSPC failure when attempting direct IO write into NOCOW range
    
       - fix deadlock between quota enable and other quota operations
    
       - global reserve minimum calculations fixed to account for free space
         tree
    
       - in zoned mode, fix condition for chunk allocation that may not find
         the right zone for reuse and could lead to early ENOSPC
    
      Core:
    
       - global reserve stealing got simplified and cleaned up in evict
    
       - remove async transaction commit based on manual transaction refs,
         reuse existing kthread and mechanisms to let it commit transaction
         before timeout
    
       - preparatory work for extent tree v2, add wrappers for global tree
         roots, truncation path cleanups
    
       - remove readahead framework, it's a bit overengineered and used only
         for scrub, and yet it does not cover all its needs, there is
         another readahead built in the b-tree search that is now used,
         performance drop on HDD is about 5% which is acceptable and scrub
         is often throttled anyway, on SSDs there's no reported drop but
         slight improvement
    
       - self tests report extent tree state when error occurs
    
       - replace assert with debugging information when an uncommitted
         transaction is found at unmount time
    
      Other:
    
       - error handling improvements
    
       - other cleanups and refactoring"
    
    * tag 'for-5.17-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (115 commits)
      btrfs: output more debug messages for uncommitted transaction
      btrfs: respect the max size in the header when activating swap file
      btrfs: fix argument list that the kdoc format and script verified
      btrfs: remove unnecessary parameter type from compression_decompress_bio
      btrfs: selftests: dump extent io tree if extent-io-tree test failed
      btrfs: scrub: cleanup the argument list of scrub_stripe()
      btrfs: scrub: cleanup the argument list of scrub_chunk()
      btrfs: remove reada infrastructure
      btrfs: scrub: use btrfs_path::reada for extent tree readahead
      btrfs: scrub: remove the unnecessary path parameter for scrub_raid56_parity()
      btrfs: refactor unlock_up
      btrfs: skip transaction commit after failure to create subvolume
      btrfs: zoned: fix chunk allocation condition for zoned allocator
      btrfs: add extent allocator hook to decide to allocate chunk or not
      btrfs: zoned: unset dedicated block group on allocation failure
      btrfs: zoned: drop redundant check for REQ_OP_ZONE_APPEND and btrfs_is_zoned
      btrfs: zoned: sink zone check into btrfs_repair_one_zone
      btrfs: zoned: simplify btrfs_check_meta_write_pointer
      btrfs: zoned: encapsulate inode locking for zoned relocation
      btrfs: sysfs: add devinfo/fsid to retrieve actual fsid from the device
      ...
    torvalds committed Jan 11, 2022
  11. Merge tag 'erofs-for-5.17-rc1' of git://git.kernel.org/pub/scm/linux/…

    …kernel/git/xiang/erofs
    
    Pull erofs updates from Gao Xiang:
     "In this cycle, tail-packing data inline for compressed files is now
      supported so that tail pcluster can be stored and read together with
      inode metadata in order to save data I/O and storage space.
    
      In addition to that, to prepare for the upcoming subpage, folio and
      fscache features, we also introduce meta buffers to get rid of
      erofs_get_meta_page() since it was too close to the page itself.
    
      In addition, in order to show supported kernel features and control
      sync decompression strategy, new sysfs nodes are introduced in this
      cycle as well.
    
      Summary:
    
       - add sysfs interface and a sysfs node to control sync decompression
    
       - add tail-packing inline support for compressed files
    
       - get rid of erofs_get_meta_page()"
    
    * tag 'erofs-for-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
      erofs: use meta buffers for zmap operations
      erofs: use meta buffers for xattr operations
      erofs: use meta buffers for super operations
      erofs: use meta buffers for inode operations
      erofs: introduce meta buffer operations
      erofs: add on-disk compressed tail-packing inline support
      erofs: support inline data decompression
      erofs: support unaligned data decompression
      erofs: introduce z_erofs_fixup_insize
      erofs: tidy up z_erofs_lz4_decompress
      erofs: clean up erofs_map_blocks tracepoints
      erofs: Replace zero-length array with flexible-array member
      erofs: add sysfs node to control sync decompression strategy
      erofs: add sysfs interface
      erofs: rename lz4_0pading to zero_padding
    torvalds committed Jan 11, 2022
  12. drivers/pcmcia: Fix ifdef covering yenta_pm_ops

    Currently, yenta_dev_suspend_noirq(), yenta_dev_resume_noirq(), and
    yenta_pm_ops are covered by "#ifdef CONFIG_PM", which results in
    compiler warnings in kernels built with CONFIG_PM_SLEEP=n and
    CONFIG_PM=y:
    
      drivers/pcmcia/yenta_socket.c:1322:12: warning: ‘yenta_dev_resume_noirq’ defined but not used [-Wunused-function]
       1322 | static int yenta_dev_resume_noirq(struct device *dev)
            |            ^~~~~~~~~~~~~~~~~~~~~~
      drivers/pcmcia/yenta_socket.c:1303:12: warning: ‘yenta_dev_suspend_noirq’ defined but not used [-Wunused-function]
       1303 | static int yenta_dev_suspend_noirq(struct device *dev)
            |            ^~~~~~~~~~~~~~~~~~~~~~~
    
    This affects kernels built without suspend and hibernation.
    
    Avoid these warnings by using "#ifdef CONFIG_PM_SLEEP".
    
    Fixes: 3daaf2c ("pcmcia: Make use of the helper macro SET_NOIRQ_SYSTEM_SLEEP_PM_OPS()")
    Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
    Cc: Masahiro Yamada <masahiroy@kernel.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    paulmckrcu authored and torvalds committed Jan 11, 2022
  13. Merge tag 'fs.idmapped.v5.17' of git://git.kernel.org/pub/scm/linux/k…

    …ernel/git/brauner/linux
    
    Pull fs idmapping updates from Christian Brauner:
     "This contains the work to enable the idmapping infrastructure to
      support idmapped mounts of filesystems mounted with an idmapping.
    
      In addition this contains various cleanups that avoid repeated
      open-coding of the same functionality and simplify the code in quite a
      few places.
    
      We also finish the renaming of the mapping helpers we started a few
      kernel releases back and move them to a dedicated header to not
      continue polluting the fs header needlessly with low-level idmapping
      helpers. With this series the fs header only contains idmapping
      helpers that interact with fs objects.
    
      Currently we only support idmapped mounts for filesystems mounted
      without an idmapping themselves. This was a conscious decision
      mentioned in multiple places (cf. [1]).
    
      As explained at length in [3] it is perfectly fine to extend support
      for idmapped mounts to filesystem's mounted with an idmapping should
      the need arise. The need has been there for some time now (cf. [2]).
    
      Before we can port any filesystem that is mountable with an idmapping
      to support idmapped mounts in the coming cycles, we need to first
      extend the mapping helpers to account for the filesystem's idmapping.
      This again, is explained at length in our documentation at [3] and
      also in the individual commit messages so here's an overview.
    
      Currently, the low-level mapping helpers implement the remapping
      algorithms described in [3] in a simplified manner as we could rely on
      the fact that all filesystems supporting idmapped mounts are mounted
      without an idmapping.
    
      In contrast, filesystems mounted with an idmapping are very likely to
      not use an identity mapping and will instead use a non-identity
      mapping. So the translation step from or into the filesystem's
      idmapping in the remapping algorithm cannot be skipped for such
      filesystems.
    
      Non-idmapped filesystems and filesystems not supporting idmapped
      mounts are unaffected by this change as the remapping algorithms can
      take the same shortcut as before. If the low-level helpers detect that
      they are dealing with an idmapped mount but the underlying filesystem
      is mounted without an idmapping we can rely on the previous shortcut
      and can continue to skip the translation step from or into the
      filesystem's idmapping. And of course, if the low-level helpers detect
      that they are not dealing with an idmapped mount they can simply
      return the relevant id unchanged; no remapping needs to be performed
      at all.
    
      These checks guarantee that only the minimal amount of work is
      performed. As before, if idmapped mounts aren't used the low-level
      helpers are idempotent and no work is performed at all"
    
    Link: 2ca4dcc ("fs/mount_setattr: tighten permission checks") [1]
    Link: containers/podman#10374 [2]
    Link: Documentations/filesystems/idmappings.rst [3]
    Link: a65e58e ("fs: document and rename fsid helpers") [4]
    
    * tag 'fs.idmapped.v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
      fs: support mapped mounts of mapped filesystems
      fs: add i_user_ns() helper
      fs: port higher-level mapping helpers
      fs: remove unused low-level mapping helpers
      fs: use low-level mapping helpers
      docs: update mapping documentation
      fs: account for filesystem mappings
      fs: tweak fsuidgid_has_mapping()
      fs: move mapping helpers
      fs: add is_idmapped_mnt() helper
    torvalds committed Jan 11, 2022
  14. Merge tag 'integrity-v5.17' of git://git.kernel.org/pub/scm/linux/ker…

    …nel/git/zohar/linux-integrity
    
    Pull integrity subsystem updates from Mimi Zohar:
     "The few changes are all kexec related:
    
       - The MOK keys are loaded onto the .platform keyring in order to
         verify the kexec kernel image signature.
    
         However, the MOK keys should only be trusted when secure boot is
         enabled. Before loading the MOK keys onto the .platform keyring,
         make sure the system is booted in secure boot mode.
    
       - When carrying the IMA measurement list across kexec, limit dumping
         the measurement list to when dynamic debug or CONFIG_DEBUG is
         enabled.
    
       - kselftest: add kexec_file_load selftest support for PowerNV and
         other cleanup"
    
    * tag 'integrity-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
      selftests/kexec: Enable secureboot tests for PowerPC
      ima: silence measurement list hexdump during kexec
      selftests/kexec: update searching for the Kconfig
      selftest/kexec: fix "ignored null byte in input" warning
      integrity: Do not load MOK and MOKx when secure boot be disabled
      ima: Fix undefined arch_ima_get_secureboot() and co
    torvalds committed Jan 11, 2022
  15. Merge tag 'audit-pr-20220110' of git://git.kernel.org/pub/scm/linux/k…

    …ernel/git/pcmoore/audit
    
    Pull audit updates from Paul Moore:
     "Four audit patches for v5.17:
    
       - Harden the code through additional use of the struct_size() macro
         and zero-length arrays to flexible-array conversions.
    
       - Ensure that processes which generate userspace audit records are
         not exempt from the kernel's audit throttling when the audit queues
         are being overrun"
    
    * tag 'audit-pr-20220110' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
      audit: replace zero-length array with flexible-array member
      audit: use struct_size() helper in audit_[send|make]_reply()
      audit: ensure userspace is penalized the same as the kernel when under pressure
      audit: use struct_size() helper in kmalloc()
    torvalds committed Jan 11, 2022
  16. Merge tag 'selinux-pr-20220110' of git://git.kernel.org/pub/scm/linux…

    …/kernel/git/pcmoore/selinux
    
    Pull selinux updates from Paul Moore:
     "Nothing too significant, but five SELinux patches for v5.17 that do
      the following:
    
       - Harden the code through additional use of the struct_size() macro
    
       - Plug some memory leaks
    
       - Clean up the code via removal of the security_add_mnt_opt() LSM
         hook and minor tweaks to selinux_add_opt()
    
       - Rename security_task_getsecid_subj() to better reflect its actual
         behavior/use - now called security_current_getsecid_subj()"
    
    * tag 'selinux-pr-20220110' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
      selinux: minor tweaks to selinux_add_opt()
      selinux: fix potential memleak in selinux_add_opt()
      security,selinux: remove security_add_mnt_opt()
      selinux: Use struct_size() helper in kmalloc()
      lsm: security_task_getsecid_subj() -> security_current_getsecid_subj()
    torvalds committed Jan 11, 2022
  17. Merge tag 'tpmdd-next-v5.17-fixed' of git://git.kernel.org/pub/scm/li…

    …nux/kernel/git/jarkko/linux-tpmdd
    
    Pull TPM updates from Jarkko Sakkinen:
     "Other than bug fixes for TPM, this includes a patch for asymmetric
      keys to allow to look up and verify with self-signed certificates
      (keys without so called AKID - Authority Key Identifier) using a new
      "dn:" prefix in the query"
    
    * tag 'tpmdd-next-v5.17-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
      lib: remove redundant assignment to variable ret
      tpm: fix NPE on probe for missing device
      tpm: fix potential NULL pointer access in tpm_del_char_device
      tpm: Add Upgrade/Reduced mode support for TPM2 modules
      char: tpm: cr50: Set TPM_FIRMWARE_POWER_MANAGED based on device property
      keys: X.509 public key issuer lookup without AKID
      tpm_tis: Fix an error handling path in 'tpm_tis_core_init()'
      tpm: tpm_tis_spi_cr50: Add default RNG quality
      tpm/st33zp24: drop unneeded over-commenting
      tpm: add request_locality before write TPM_INT_ENABLE
    torvalds committed Jan 11, 2022
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