- Make the GENERIC_IRQ_MULTI_HANDLER configuration correct
- Add a missing DT compatible string fir tge Ingenic driver
- Remove the pointless debugfs_file pointer from struct irqdomain
-----BEGIN PGP SIGNATURE-----
iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmBOLisTHHRnbHhAbGlu
dXRyb25peC5kZQAKCRCmGPVMDXSYocIsD/oCUvQdR3WK2R73R4+ecJk9dpIG+J+m
dexJ2QZ8gc8qnGqfZznrw9+JnymYfbUxUzWNM+qKUJCfpGYrf0++iopJwdHcMexh
8dyptcZDGvw65QXUxaA1L+oKDBtFUouC3pie+AGpFHSX6FlWHdTS26fQ63UZy4uO
o4+sbHgiy1hEZZKB20k+WTF3e72+YPquo6VwP4lGcGjOsIq4PABmbeattF5E3Woa
wXXhC40qaSpA/JDWNaaknLzyEJgDORPDflWxMJQdo/A+SqRnHCbPjOmi0rGyn3dx
Ae17++DH/XsTzlLcIEe2ZeNdhIPfqNXSIssCzP8VZwLpseIJ22Ou0SRaQ0lUYutM
WrgAVT5+/iSQgX8Zu5Oncr56EOwrJLSupsRd+lXvEYLBLzlBhQx5UgodnxlKP+Go
PazdG52tJBapwH3Rh3Q8rJySxhfWpUUzFY/scb9IyyuqcxqFnFo7/EJqUukvJ6lA
hSFr8L5jYK6U3guKySChQuDGsFkz4xInoGuTWiL21lbbV3Y86kCZ3M5Aon8maM82
nxY73u+QTj8Xj2ElXgPa/sJiw26uszcFkgEWaeBM0OtUoaEJR7O1fy3s9SRwKlLG
smt92iFehSQoDJWJlujsyDewUacF1I3DS6DUlOit62P8FvWC+fEyn92aocStOtYz
AlRhB/V8WDFjbg==
=PG58
-----END PGP SIGNATURE-----
Merge tag 'irq-urgent-2021-03-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"A set of irqchip updates:
- Make the GENERIC_IRQ_MULTI_HANDLER configuration correct
- Add a missing DT compatible string for the Ingenic driver
- Remove the pointless debugfs_file pointer from struct irqdomain"
* tag 'irq-urgent-2021-03-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/ingenic: Add support for the JZ4760
dt-bindings/irq: Add compatible string for the JZ4760B
irqchip: Do not blindly select CONFIG_GENERIC_IRQ_MULTI_HANDLER
ARM: ep93xx: Select GENERIC_IRQ_MULTI_HANDLER directly
irqdomain: Remove debugfs_file from struct irq_domain
- A fix for the static_call mechanism so it handles unaligned
addresses correctly.
- Make u64_stats_init() a macro so every instance gets a seperate lockdep
key.
- Make seqcount_latch_init() a macro as well to preserve the static
variable which is used for the lockdep key.
-----BEGIN PGP SIGNATURE-----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=iE+t
-----END PGP SIGNATURE-----
Merge tag 'locking-urgent-2021-03-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Thomas Gleixner:
"A couple of locking fixes:
- A fix for the static_call mechanism so it handles unaligned
addresses correctly.
- Make u64_stats_init() a macro so every instance gets a seperate
lockdep key.
- Make seqcount_latch_init() a macro as well to preserve the static
variable which is used for the lockdep key"
* tag 'locking-urgent-2021-03-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
seqlock,lockdep: Fix seqcount_latch_init()
u64_stats,lockdep: Fix u64_stats_init() vs lockdep
static_call: Fix the module key fixup
properly handle PID/TID for large PEBS.
- Handle the case properly when there's no PMU and therefore return an
empty list of perf MSRs for VMX to switch instead of reading random
garbage from the stack.
-----BEGIN PGP SIGNATURE-----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=djiL
-----END PGP SIGNATURE-----
Merge tag 'perf_urgent_for_v5.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Borislav Petkov:
- Make sure PMU internal buffers are flushed for per-CPU events too and
properly handle PID/TID for large PEBS.
- Handle the case properly when there's no PMU and therefore return an
empty list of perf MSRs for VMX to switch instead of reading random
garbage from the stack.
* tag 'perf_urgent_for_v5.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/perf: Use RET0 as default for guest_get_msrs to handle "no PMU" case
perf/x86/intel: Set PERF_ATTACH_SCHED_CB for large PEBS and LBR
perf/core: Flush PMU internal buffers for per-CPU events
Merge misc fixes from Andrew Morton:
"28 patches.
Subsystems affected by this series: mm (memblock, pagealloc, hugetlb,
highmem, kfence, oom-kill, madvise, kasan, userfaultfd, memcg, and
zram), core-kernel, kconfig, fork, binfmt, MAINTAINERS, kbuild, and
ia64"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (28 commits)
zram: fix broken page writeback
zram: fix return value on writeback_store
mm/memcg: set memcg when splitting page
mm/memcg: rename mem_cgroup_split_huge_fixup to split_page_memcg and add nr_pages argument
ia64: fix ptrace(PTRACE_SYSCALL_INFO_EXIT) sign
ia64: fix ia64_syscall_get_set_arguments() for break-based syscalls
mm/userfaultfd: fix memory corruption due to writeprotect
kasan: fix KASAN_STACK dependency for HW_TAGS
kasan, mm: fix crash with HW_TAGS and DEBUG_PAGEALLOC
mm/madvise: replace ptrace attach requirement for process_madvise
include/linux/sched/mm.h: use rcu_dereference in in_vfork()
kfence: fix reports if constant function prefixes exist
kfence, slab: fix cache_alloc_debugcheck_after() for bulk allocations
kfence: fix printk format for ptrdiff_t
linux/compiler-clang.h: define HAVE_BUILTIN_BSWAP*
MAINTAINERS: exclude uapi directories in API/ABI section
binfmt_misc: fix possible deadlock in bm_register_write
mm/highmem.c: fix zero_user_segments() with start > end
hugetlb: do early cow when page pinned on src mm
mm: use is_cow_mapping() across tree where proper
...
Here are some small misc/char driver fixes for 5.12-rc3 to resolve some
reported problems:
- habanalabs driver fixes
- Acrn build fixes (reported many times)
- pvpanic module table export fix
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCYEzNxA8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+yn/KACdFetUjRJSB1d1QdL/tVZBzMqJvBoAoMViU6nf
UL+tHbnysQwUjwVL62HJ
=VrJd
-----END PGP SIGNATURE-----
Merge tag 'char-misc-5.12-rc3' 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 misc/char driver fixes to resolve some reported
problems:
- habanalabs driver fixes
- Acrn build fixes (reported many times)
- pvpanic module table export fix
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-5.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
misc/pvpanic: Export module FDT device table
misc: fastrpc: restrict user apps from sending kernel RPC messages
virt: acrn: Correct type casting of argument of copy_from_user()
virt: acrn: Use EPOLLIN instead of POLLIN
virt: acrn: Use vfs_poll() instead of f_op->poll()
virt: acrn: Make remove_cpu sysfs invisible with !CONFIG_HOTPLUG_CPU
cpu/hotplug: Fix build error of using {add,remove}_cpu() with !CONFIG_SMP
habanalabs: fix debugfs address translation
habanalabs: Disable file operations after device is removed
habanalabs: Call put_pid() when releasing control device
drivers: habanalabs: remove unused dentry pointer for debugfs files
habanalabs: mark hl_eq_inc_ptr() as static
- avoid 'make image_name' invoking syncconfig
- fix a couple of bugs in scripts/dummy-tools.
- fix LLD_VENDOR and locale issues in scripts/ld-version.sh
- rebuild GCC plugins when the compiler is upgraded
- allow LTO to be enabled with KASAN_HW_TAGS
- allow LTO to be enabled without LLVM=1
-----BEGIN PGP SIGNATURE-----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=wmt8
-----END PGP SIGNATURE-----
Merge tag 'kbuild-fixes-v5.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- avoid 'make image_name' invoking syncconfig
- fix a couple of bugs in scripts/dummy-tools
- fix LLD_VENDOR and locale issues in scripts/ld-version.sh
- rebuild GCC plugins when the compiler is upgraded
- allow LTO to be enabled with KASAN_HW_TAGS
- allow LTO to be enabled without LLVM=1
* tag 'kbuild-fixes-v5.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: fix ld-version.sh to not be affected by locale
kbuild: remove meaningless parameter to $(call if_changed_rule,dtc)
kbuild: remove LLVM=1 test from HAS_LTO_CLANG
kbuild: remove unneeded -O option to dtc
kbuild: dummy-tools: adjust to scripts/cc-version.sh
kbuild: Allow LTO to be selected with KASAN_HW_TAGS
kbuild: dummy-tools: support MPROFILE_KERNEL checks for ppc
kbuild: rebuild GCC plugins when the compiler is upgraded
kbuild: Fix ld-version.sh script if LLD was built with LLD_VENDOR
kbuild: dummy-tools: fix inverted tests for gcc
kbuild: add image_name to no-sync-config-targets
Rename mem_cgroup_split_huge_fixup to split_page_memcg and explicitly pass
in page number argument.
In this way, the interface name is more common and can be used by
potential users. In addition, the complete info(memcg and flag) of the
memcg needs to be set to the tail pages.
Link: https://lkml.kernel.org/r/20210304074053.65527-2-zhouguanghui1@huawei.com
Signed-off-by: Zhou Guanghui <zhouguanghui1@huawei.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Hanjun Guo <guohanjun@huawei.com>
Cc: Tianhong Ding <dingtianhong@huawei.com>
Cc: Weilong Chen <chenweilong@huawei.com>
Cc: Rui Xiang <rui.xiang@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix a sparse warning by using rcu_dereference(). Technically this is a
bug and a sufficiently aggressive compiler could reload the `real_parent'
pointer outside the protection of the rcu lock (and access freed memory),
but I think it's pretty unlikely to happen.
Link: https://lkml.kernel.org/r/20210221194207.1351703-1-willy@infradead.org
Fixes: b18dc5f291 ("mm, oom: skip vforked tasks from being selected")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Separating compiler-clang.h from compiler-gcc.h inadventently dropped the
definitions of the three HAVE_BUILTIN_BSWAP macros, which requires falling
back to the open-coded version and hoping that the compiler detects it.
Since all versions of clang support the __builtin_bswap interfaces, add
back the flags and have the headers pick these up automatically.
This results in a 4% improvement of compilation speed for arm defconfig.
Note: it might also be worth revisiting which architectures set
CONFIG_ARCH_USE_BUILTIN_BSWAP for one compiler or the other, today this is
set on six architectures (arm32, csky, mips, powerpc, s390, x86), while
another ten architectures define custom helpers (alpha, arc, ia64, m68k,
mips, nios2, parisc, sh, sparc, xtensa), and the rest (arm64, h8300,
hexagon, microblaze, nds32, openrisc, riscv) just get the unoptimized
version and rely on the compiler to detect it.
A long time ago, the compiler builtins were architecture specific, but
nowadays, all compilers that are able to build the kernel have correct
implementations of them, though some may not be as optimized as the inline
asm versions.
The patch that dropped the optimization landed in v4.19, so as discussed
it would be fairly safe to backport this revert to stable kernels to the
4.19/5.4/5.10 stable kernels, but there is a remaining risk for
regressions, and it has no known side-effects besides compile speed.
Link: https://lkml.kernel.org/r/20210226161151.2629097-1-arnd@kernel.org
Link: https://lore.kernel.org/lkml/20210225164513.3667778-1-arnd@kernel.org/
Fixes: 815f0ddb34 ("include/linux/compiler*.h: make compiler-*.h mutually exclusive")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Acked-by: Nick Desaulniers <ndesaulniers@google.com>
Acked-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Guo Ren <guoren@kernel.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Sami Tolvanen <samitolvanen@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Arvind Sankar <nivedita@alum.mit.edu>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We've got quite a few places (pte, pmd, pud) that explicitly checked
against whether we should break the cow right now during fork(). It's
easier to provide a helper, especially before we work the same thing on
hugetlbfs.
Since we'll reference is_cow_mapping() in mm.h, move it there too.
Actually it suites mm.h more since internal.h is mm/ only, but mm.h is
exported to the whole kernel. With that we should expect another patch to
use is_cow_mapping() whenever we can across the kernel since we do use it
quite a lot but it's always done with raw code against VM_* flags.
Link: https://lkml.kernel.org/r/20210217233547.93892-4-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: David Airlie <airlied@linux.ie>
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: Gal Pressman <galpress@amazon.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jann Horn <jannh@google.com>
Cc: Kirill Shutemov <kirill@shutemov.name>
Cc: Kirill Tkhai <ktkhai@virtuozzo.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Roland Scheidegger <sroland@vmware.com>
Cc: VMware Graphics <linux-graphics-maintainer@vmware.com>
Cc: Wei Zhang <wzam@amazon.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When a new mm is created, its PASID should be cleared, i.e. the PASID is
initialized to its init state 0 on both ARM and X86.
This patch was part of the series introducing mm->pasid, but got lost
along the way [1]. It still makes sense to have it, because each address
space has a different PASID. And the IOMMU code in
iommu_sva_alloc_pasid() expects the pasid field of a new mm struct to be
cleared.
[1] https://lore.kernel.org/linux-iommu/YDgh53AcQHT+T3L0@otcwcpicx3.sc.intel.com/
Link: https://lkml.kernel.org/r/20210302103837.2562625-1-jean-philippe@linaro.org
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Cc: Jacob Pan <jacob.jun.pan@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
With clang-13, some functions only get partially inlined, with a
specialized version referring to a global variable. This triggers a
harmless build-time check for the intel-rng driver:
WARNING: modpost: drivers/char/hw_random/intel-rng.o(.text+0xe): Section mismatch in reference from the function stop_machine() to the function .init.text:intel_rng_hw_init()
The function stop_machine() references
the function __init intel_rng_hw_init().
This is often because stop_machine lacks a __init
annotation or the annotation of intel_rng_hw_init is wrong.
In this instance, an easy workaround is to force the stop_machine()
function to be inline, along with related interfaces that did not show the
same behavior at the moment, but theoretically could.
The combination of the two patches listed below triggers the behavior in
clang-13, but individually these commits are correct.
Link: https://lkml.kernel.org/r/20210225130153.1956990-1-arnd@kernel.org
Fixes: fe5595c074 ("stop_machine: Provide stop_machine_cpuslocked()")
Fixes: ee527cd3a2 ("Use stop_machine_run in the Intel RNG driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Daniel Bristot de Oliveira <bristot@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The inlining logic in clang-13 is rewritten to often not inline some
functions that were inlined by all earlier compilers.
In case of the memblock interfaces, this exposed a harmless bug of a
missing __init annotation:
WARNING: modpost: vmlinux.o(.text+0x507c0a): Section mismatch in reference from the function memblock_bottom_up() to the variable .meminit.data:memblock
The function memblock_bottom_up() references
the variable __meminitdata memblock.
This is often because memblock_bottom_up lacks a __meminitdata
annotation or the annotation of memblock is wrong.
Interestingly, these annotations were present originally, but got removed
with the explanation that the __init annotation prevents the function from
getting inlined. I checked this again and found that while this is the
case with clang, gcc (version 7 through 10, did not test others) does
inline the functions regardless.
As the previous change was apparently intended to help the clang builds,
reverting it to help the newer clang versions seems appropriate as well.
gcc builds don't seem to care either way.
Link: https://lkml.kernel.org/r/20210225133808.2188581-1-arnd@kernel.org
Fixes: 5bdba520c1 ("mm: memblock: drop __init from memblock functions to make it inline")
Reference: 2cfb3665e8 ("include/linux/memblock.h: add __init to memblock_set_bottom_up()")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Faiyaz Mohammed <faiyazm@codeaurora.org>
Cc: Baoquan He <bhe@redhat.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Aslan Bakirov <aslan@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-----BEGIN PGP SIGNATURE-----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=qHyO
-----END PGP SIGNATURE-----
Merge tag 'block-5.12-2021-03-12-v2' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Mostly just random fixes all over the map.
The only odd-one-out change is finally getting the rename of
BIO_MAX_PAGES to BIO_MAX_VECS done. This should've been done with the
multipage bvec change, but it's been left.
Do it now to avoid hassles around changes piling up for the next merge
window.
Summary:
- NVMe pull request:
- one more quirk (Dmitry Monakhov)
- fix max_zone_append_sectors initialization (Chaitanya Kulkarni)
- nvme-fc reset/create race fix (James Smart)
- fix status code on aborts/resets (Hannes Reinecke)
- fix the CSS check for ZNS namespaces (Chaitanya Kulkarni)
- fix a use after free in a debug printk in nvme-rdma (Lv Yunlong)
- Follow-up NVMe error fix for NULL 'id' (Christoph)
- Fixup for the bd_size_lock being IRQ safe, now that the offending
driver has been dropped (Damien).
- rsxx probe failure error return (Jia-Ju)
- umem probe failure error return (Wei)
- s390/dasd unbind fixes (Stefan)
- blk-cgroup stats summing fix (Xunlei)
- zone reset handling fix (Damien)
- Rename BIO_MAX_PAGES to BIO_MAX_VECS (Christoph)
- Suppress uevent trigger for hidden devices (Daniel)
- Fix handling of discard on busy device (Jan)
- Fix stale cache issue with zone reset (Shin'ichiro)"
* tag 'block-5.12-2021-03-12-v2' of git://git.kernel.dk/linux-block:
nvme: fix the nsid value to print in nvme_validate_or_alloc_ns
block: Discard page cache of zone reset target range
block: Suppress uevent for hidden device when removed
block: rename BIO_MAX_PAGES to BIO_MAX_VECS
nvme-pci: add the DISABLE_WRITE_ZEROES quirk for a Samsung PM1725a
nvme-rdma: Fix a use after free in nvmet_rdma_write_data_done
nvme-core: check ctrl css before setting up zns
nvme-fc: fix racing controller reset and create association
nvme-fc: return NVME_SC_HOST_ABORTED_CMD when a command has been aborted
nvme-fc: set NVME_REQ_CANCELLED in nvme_fc_terminate_exchange()
nvme: add NVME_REQ_CANCELLED flag in nvme_cancel_request()
nvme: simplify error logic in nvme_validate_ns()
nvme: set max_zone_append_sectors nvme_revalidate_zones
block: rsxx: fix error return code of rsxx_pci_probe()
block: Fix REQ_OP_ZONE_RESET_ALL handling
umem: fix error return code in mm_pci_probe()
blk-cgroup: Fix the recursive blkg rwstat
s390/dasd: fix hanging IO request during DASD driver unbind
s390/dasd: fix hanging DASD driver unbind
block: Try to handle busy underlying device on discard
-----BEGIN PGP SIGNATURE-----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=40h0
-----END PGP SIGNATURE-----
Merge tag 'io_uring-5.12-2021-03-12' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"Not quite as small this week as I had hoped, but at least this should
be the end of it. All the little known issues have been ironed out -
most of it little stuff, but cancelations being the bigger part. Only
minor tweaks and/or regular fixes expected beyond this point.
- Fix the creds tracking for async (io-wq and SQPOLL)
- Various SQPOLL fixes related to parking, sharing, forking, IOPOLL,
completions, and life times. Much simpler now.
- Make IO threads unfreezable by default, on account of a bug report
that had them spinning on resume. Honestly not quite sure why
thawing leaves us with a perpetual signal pending (causing the
spin), but for now make them unfreezable like there were in 5.11
and prior.
- Move personality_idr to xarray, solving a use-after-free related to
removing an entry from the iterator callback. Buffer idr needs the
same treatment.
- Re-org around and task vs context tracking, enabling the fixing of
cancelations, and then cancelation fixes on top.
- Various little bits of cleanups and hardening, and removal of now
dead parts"
* tag 'io_uring-5.12-2021-03-12' of git://git.kernel.dk/linux-block: (34 commits)
io_uring: fix OP_ASYNC_CANCEL across tasks
io_uring: cancel sqpoll via task_work
io_uring: prevent racy sqd->thread checks
io_uring: remove useless ->startup completion
io_uring: cancel deferred requests in try_cancel
io_uring: perform IOPOLL reaping if canceler is thread itself
io_uring: force creation of separate context for ATTACH_WQ and non-threads
io_uring: remove indirect ctx into sqo injection
io_uring: fix invalid ctx->sq_thread_idle
kernel: make IO threads unfreezable by default
io_uring: always wait for sqd exited when stopping SQPOLL thread
io_uring: remove unneeded variable 'ret'
io_uring: move all io_kiocb init early in io_init_req()
io-wq: fix ref leak for req in case of exit cancelations
io_uring: fix complete_post races for linked req
io_uring: add io_disarm_next() helper
io_uring: fix io_sq_offload_create error handling
io-wq: remove unused 'user' member of io_wq
io_uring: Convert personality_idr to XArray
io_uring: clean R_DISABLED startup mess
...
Prevent software nodes from being registered before their parents and
fix a recent mistake causing already registered software nodes to be
registered again in some cases (Heikki Krogerus).
-----BEGIN PGP SIGNATURE-----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=02Kr
-----END PGP SIGNATURE-----
Merge tag 'devprop-5.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull device properties framework fixes from Rafael Wysocki:
"Prevent software nodes from being registered before their parents and
fix a recent mistake causing already registered software nodes to be
registered again in some cases (Heikki Krogerus)"
* tag 'devprop-5.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
software node: Fix device_add_software_node()
software node: Fix node registration
A small collection fo driver specific fixes that have arrived since the
merge window.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmBLvF4ACgkQJNaLcl1U
h9AVGwf/Vwr1w0r4P4eHKFc7W3ujEdK7+vSM4GoS+U/CAokEzDcJtuzzqH00iDUA
poPIQNrylq0rjcurjKuMAko4cfg0WtlcYvcQcyL8hSP5Cg633XqJgJ7mUrOv5RQE
nUYh/SNop5ACMlE/N3umt+nYIlFDSDcVq0fHmEcT4tYCh3aFKxlCIzBx/Vt8WOoW
7/pO4n+vP55ciSyKS5lgaga8Qkz+Gy0+7bv5aK2swYrWU08lI5Ts5aRtGRmZmvI9
4pc2/8AeuOuujWZgaRzuLEKJfnKgJv0mRDIHzQBx/wgQtrm91FHE96WTuQ/88mKB
6aMjiugtPvSEscZ/PROX3xRm+dZoBg==
=Ce9K
-----END PGP SIGNATURE-----
Merge tag 'regulator-fix-v5.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"A small collection fo driver specific fixes that have arrived since
the merge window"
* tag 'regulator-fix-v5.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: mt6315: Fix off-by-one for .n_voltages
regulator: rt4831: Fix return value check in rt4831_regulator_probe()
regulator: pca9450: Clear PRESET_EN bit to fix BUCK1/2/3 voltage setting
regulator: qcom-rpmh: Use correct buck for S1C regulator
regulator: qcom-rpmh: Correct the pmic5_hfsmps515 buck
regulator: pca9450: Fix return value when failing to get sd-vsel GPIO
regulator: mt6315: Return REGULATOR_MODE_INVALID for invalid mode
- Fix booting a 52-bit-VA-aware kernel on Qualcomm Amberwing
- Fix pfn_valid() not to reject all ZONE_DEVICE memory
- Fix memory tagging setup for hotplugged memory regions
- Fix KASAN tagging in page_alloc() when DEBUG_VIRTUAL is enabled
- Fix accidental truncation of CPU PMU event counters
- Fix error code initialisation when failing probe of DMC620 PMU
- Fix return value initialisation for sve-ptrace selftest
- Drop broken support for CMDLINE_EXTEND
-----BEGIN PGP SIGNATURE-----
iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAmBLU98QHHdpbGxAa2Vy
bmVsLm9yZwAKCRC3rHDchMFjNEhpB/wMahRmJQvjJtt/PqKU9m46tRbHRT5PC2WQ
256DoYtexSrGa6DrBoSteUsaPuRo3YcfDnXf1wbTYikoXoKxbLvm/9IQivfyrd3S
M4DjeaemhcZdg6YKrs/0s2UOzPV8O3kKWfs58gJ2oP/xHA7uqcZJxlIDd7H4/bX+
M0wQvBnJEEb9mg3Hxo2WZLRUKK3nPtZ5hGz9RADOHkyCt+jPr3UtAe69iZcQ4Udd
X2z3Dc1CZf3VF9Ujkylllqxo2eaLKXGie7r77o1AgXwPEedZD+Q9vn/viVuluRcc
slZQyW/kRRGCZ92RT2DwLZsixsBKJtZxj+AEoJSBIrsCUUXXP4xv
=e3YJ
-----END PGP SIGNATURE-----
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"We've got a smattering of changes all over the place which we've
acrued since -rc1. To my knowledge, there aren't any pending issues at
the moment, but there's still plenty of time for something else to
crop up...
Summary:
- Fix booting a 52-bit-VA-aware kernel on Qualcomm Amberwing
- Fix pfn_valid() not to reject all ZONE_DEVICE memory
- Fix memory tagging setup for hotplugged memory regions
- Fix KASAN tagging in page_alloc() when DEBUG_VIRTUAL is enabled
- Fix accidental truncation of CPU PMU event counters
- Fix error code initialisation when failing probe of DMC620 PMU
- Fix return value initialisation for sve-ptrace selftest
- Drop broken support for CMDLINE_EXTEND"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
perf/arm_dmc620_pmu: Fix error return code in dmc620_pmu_device_probe()
arm64: mm: remove unused __cpu_uses_extended_idmap[_level()]
arm64: mm: use a 48-bit ID map when possible on 52-bit VA builds
arm64: perf: Fix 64-bit event counter read truncation
arm64/mm: Fix __enable_mmu() for new TGRAN range values
kselftest: arm64: Fix exit code of sve-ptrace
arm64: mte: Map hotplugged memory as Normal Tagged
arm64: kasan: fix page_alloc tagging with DEBUG_VIRTUAL
arm64/mm: Reorganize pfn_valid()
arm64/mm: Fix pfn_valid() for ZONE_DEVICE based memory
arm64/mm: Drop THP conditionality from FORCE_MAX_ZONEORDER
arm64/mm: Drop redundant ARCH_WANT_HUGE_PMD_SHARE
arm64: Drop support for CMDLINE_EXTEND
arm64: cpufeatures: Fix handling of CONFIG_CMDLINE for idreg overrides
core:
- Clear holes when converting compat ioctl's between 32-bits and 64-bits.
docs:
- Use gitlab for drm bugzilla now.
ttm:
- Fix ttm page pool accounting.
fbdev:
- Fix oops in drm_fbdev_cleanup()
shmem:
- Assorted fixes for shmem helpers.
qxl:
- unpin qxl bos created as pinned when freeing them,
and make ttm only warn once on this behavior.
- Zero head.surface_id correctly in qxl.
atyfb:
- Use LCD management for atyfb on PPC_MAC.
meson:
- Shutdown kms poll helper in meson correctly.
nouveau:
- fix regression in bo syncing
i915:
- Wedge the GPU if command parser setup fails
amdgpu:
- Fix aux backlight control
- Add a backlight override parameter
- Various display fixes
- PCIe DPM fix for vega
- Polaris watermark fixes
- Additional S0ix fix
radeon:
- Fix GEM regression
- Fix AGP dependency handling
-----BEGIN PGP SIGNATURE-----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=nUAy
-----END PGP SIGNATURE-----
Merge tag 'drm-fixes-2021-03-12-1' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Regular fixes for rc3. The i915 pull was based on the rc1 tag so I
just cherry-picked the single fix from there to avoid it. The misc and
amd trees seem to be on okay bases.
It's a bunch of fixes across the tree, amdgpu has most of them a few
ttm fixes around qxl, and nouveau.
core:
- Clear holes when converting compat ioctl's between 32-bits and
64-bits.
docs:
- Use gitlab for drm bugzilla now.
ttm:
- Fix ttm page pool accounting.
fbdev:
- Fix oops in drm_fbdev_cleanup()
shmem:
- Assorted fixes for shmem helpers.
qxl:
- unpin qxl bos created as pinned when freeing them, and make ttm
only warn once on this behavior.
- Zero head.surface_id correctly in qxl.
atyfb:
- Use LCD management for atyfb on PPC_MAC.
meson:
- Shutdown kms poll helper in meson correctly.
nouveau:
- fix regression in bo syncing
i915:
- Wedge the GPU if command parser setup fails
amdgpu:
- Fix aux backlight control
- Add a backlight override parameter
- Various display fixes
- PCIe DPM fix for vega
- Polaris watermark fixes
- Additional S0ix fix
radeon:
- Fix GEM regression
- Fix AGP dependency handling"
* tag 'drm-fixes-2021-03-12-1' of git://anongit.freedesktop.org/drm/drm: (33 commits)
drm/nouveau: fix dma syncing for loops (v2)
drm/i915: Wedge the GPU if command parser setup fails
drm/compat: Clear bounce structures
drm/shmem-helpers: vunmap: Don't put pages for dma-buf
drm: meson_drv add shutdown function
drm/shmem-helper: Don't remove the offset in vm_area_struct pgoff
drm/shmem-helper: Check for purged buffers in fault handler
qxl: Fix uninitialised struct field head.surface_id
drm/ttm: Fix TTM page pool accounting
drm/ttm: soften TTM warnings
drm: Use USB controller's DMA mask when importing dmabufs
MAINTAINERS: update drm bug reporting URL
fbdev: atyfb: use LCD management functions for PPC_PMAC also
fbdev: atyfb: always declare aty_{ld,st}_lcd()
drm/qxl: fix lockdep issue in qxl_alloc_release_reserved
drm/qxl: unpin release objects
drm/fb-helper: only unmap if buffer not null
drm/amdgpu: fix S0ix handling when the CONFIG_AMD_PMC=m
drm/radeon: fix AGP dependency
drm/radeon: also init GEM funcs in radeon_gem_prime_import_sg_table
...
Ever since the addition of multipage bio_vecs BIO_MAX_PAGES has been
horribly confusingly misnamed. Rename it to BIO_MAX_VECS to stop
confusing users of the bio API.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20210311110137.1132391-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
USB devices cannot perform DMA and hence have no dma_mask set in their
device structure. Therefore importing dmabuf into a USB-based driver
fails, which breaks joining and mirroring of display in X11.
For USB devices, pick the associated USB controller as attachment device.
This allows the DRM import helpers to perform the DMA setup. If the DMA
controller does not support DMA transfers, we're out of luck and cannot
import. Our current USB-based DRM drivers don't use DMA, so the actual
DMA device is not important.
Tested by joining/mirroring displays of udl and radeon under Gnome/X11.
v8:
* release dmadev if device initialization fails (Noralf)
* fix commit description (Noralf)
v7:
* fix use-before-init bug in gm12u320 (Dan)
v6:
* implement workaround in DRM drivers and hold reference to
DMA device while USB device is in use
* remove dev_is_usb() (Greg)
* collapse USB helper into usb_intf_get_dma_device() (Alan)
* integrate Daniel's TODO statement (Daniel)
* fix typos (Greg)
v5:
* provide a helper for USB interfaces (Alan)
* add FIXME item to documentation and TODO list (Daniel)
v4:
* implement workaround with USB helper functions (Greg)
* use struct usb_device->bus->sysdev as DMA device (Takashi)
v3:
* drop gem_create_object
* use DMA mask of USB controller, if any (Daniel, Christian, Noralf)
v2:
* move fix to importer side (Christian, Daniel)
* update SHMEM and CMA helpers for new PRIME callbacks
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 6eb0233ec2 ("usb: don't inherity DMA properties for USB devices")
Tested-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <stable@vger.kernel.org> # v5.10+
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210303133229.3288-1-tzimmermann@suse.de
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Linus reported a build error due to the GCC plugin incompatibility
when the compiler is upgraded. [1]
GCC plugins are tied to a particular GCC version. So, they must be
rebuilt when the compiler is upgraded.
This seems to be a long-standing flaw since the initial support of
GCC plugins.
Extend commit 8b59cd81dc ("kbuild: ensure full rebuild when the
compiler is updated"), so that GCC plugins are covered by the
compiler upgrade detection.
[1]: https://lore.kernel.org/lkml/CAHk-=wieoN5ttOy7SnsGwZv+Fni3R6m-Ut=oxih6bbZ28G+4dw@mail.gmail.com/
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
The function device_add_software_node() was meant to
register the node supplied to it, but only if that node
wasn't already registered. Right now the function attempts
to always register the node. That will cause a failure with
nodes that are already registered.
Fixing that by incrementing the reference count of the nodes
that have already been registered, and only registering the
new nodes. Also, clarifying the behaviour in the function
documentation.
Fixes: e68d0119e3 ("software node: Introduce device_add_software_node()")
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The driver uses the DVS registers PCA9450_REG_BUCKxOUT_DVS0 to set the
voltage for the buck regulators 1, 2 and 3. This has no effect as the
PRESET_EN bit is set by default and therefore the preset values are used
instead, which are set to 850 mV.
To fix this we clear the PRESET_EN bit at time of initialization.
Fixes: 0935ff5f1f ("regulator: pca9450: add pca9450 pmic driver")
Cc: <stable@vger.kernel.org>
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Link: https://lore.kernel.org/r/20210222115229.166620-1-frieder.schrempf@kontron.de
Signed-off-by: Mark Brown <broonie@kernel.org>
In a system supporting MTE, the linear map must allow reading/writing
allocation tags by setting the memory type as Normal Tagged. Currently,
this is only handled for memory present at boot. Hotplugged memory uses
Normal non-Tagged memory.
Introduce pgprot_mhp() for hotplugged memory and use it in
add_memory_resource(). The arm64 code maps pgprot_mhp() to
pgprot_tagged().
Note that ZONE_DEVICE memory should not be mapped as Tagged and
therefore setting the memory type in arch_add_memory() is not feasible.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Fixes: 0178dc7613 ("arm64: mte: Use Normal Tagged attributes for the linear map")
Reported-by: Patrick Daly <pdaly@codeaurora.org>
Tested-by: Patrick Daly <pdaly@codeaurora.org>
Link: https://lore.kernel.org/r/1614745263-27827-1-git-send-email-pdaly@codeaurora.org
Cc: <stable@vger.kernel.org> # 5.10.x
Cc: Will Deacon <will@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: David Hildenbrand <david@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20210309122601.5543-1-catalin.marinas@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
seqcount_init() must be a macro in order to preserve the static
variable that is used for the lockdep key. Don't then wrap it in an
inline function, which destroys that.
Luckily there aren't many users of this function, but fix it before it
becomes a problem.
Fixes: 80793c3471 ("seqlock: Introduce seqcount_latch_t")
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/YEeFEbNUVkZaXDp4@hirez.programming.kicks-ass.net
Jakub reported that:
static struct net_device *rtl8139_init_board(struct pci_dev *pdev)
{
...
u64_stats_init(&tp->rx_stats.syncp);
u64_stats_init(&tp->tx_stats.syncp);
...
}
results in lockdep getting confused between the RX and TX stats lock.
This is because u64_stats_init() is an inline calling seqcount_init(),
which is a macro using a static variable to generate a lockdep class.
By wrapping that in an inline, we negate the effect of the macro and
fold the static key variable, hence the confusion.
Fix by also making u64_stats_init() a macro for the case where it
matters, leaving the other case an inline for argument validation
etc.
Reported-by: Jakub Kicinski <kuba@kernel.org>
Debugged-by: "Ahmed S. Darwish" <a.darwish@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: "Erhard F." <erhard_f@mailbox.org>
Link: https://lkml.kernel.org/r/YEXicy6+9MksdLZh@hirez.programming.kicks-ass.net
279dcf693a ("virt: acrn: Introduce an interface for Service VM to
control vCPU") introduced {add,remove}_cpu() usage and it hit below
error with !CONFIG_SMP:
../drivers/virt/acrn/hsm.c: In function ‘remove_cpu_store’:
../drivers/virt/acrn/hsm.c:389:3: error: implicit declaration of function ‘remove_cpu’; [-Werror=implicit-function-declaration]
remove_cpu(cpu);
../drivers/virt/acrn/hsm.c:402:2: error: implicit declaration of function ‘add_cpu’; [-Werror=implicit-function-declaration]
add_cpu(cpu);
Add add_cpu() function prototypes with !CONFIG_SMP and remove_cpu() with
!CONFIG_HOTPLUG_CPU for such usage.
Fixes: 279dcf693a ("virt: acrn: Introduce an interface for Service VM to control vCPU")
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Qais Yousef <qais.yousef@arm.com>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Qais Yousef <qais.yousef@arm.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Shuo Liu <shuo.a.liu@intel.com>
Link: https://lore.kernel.org/r/20210221134339.57851-1-shuo.a.liu@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull networking fixes from David Miller:
1) Fix transmissions in dynamic SMPS mode in ath9k, from Felix Fietkau.
2) TX skb error handling fix in mt76 driver, also from Felix.
3) Fix BPF_FETCH atomic in x86 JIT, from Brendan Jackman.
4) Avoid double free of percpu pointers when freeing a cloned bpf prog.
From Cong Wang.
5) Use correct printf format for dma_addr_t in ath11k, from Geert
Uytterhoeven.
6) Fix resolve_btfids build with older toolchains, from Kun-Chuan
Hsieh.
7) Don't report truncated frames to mac80211 in mt76 driver, from
Lorenzop Bianconi.
8) Fix watcdog timeout on suspend/resume of stmmac, from Joakim Zhang.
9) mscc ocelot needs NET_DEVLINK selct in Kconfig, from Arnd Bergmann.
10) Fix sign comparison bug in TCP_ZEROCOPY_RECEIVE getsockopt(), from
Arjun Roy.
11) Ignore routes with deleted nexthop object in mlxsw, from Ido
Schimmel.
12) Need to undo tcp early demux lookup sometimes in nf_nat, from
Florian Westphal.
13) Fix gro aggregation for udp encaps with zero csum, from Daniel
Borkmann.
14) Make sure to always use imp*_ndo_send when necessaey, from Jason A.
Donenfeld.
15) Fix TRSCER masks in sh_eth driver from Sergey Shtylyov.
16) prevent overly huge skb allocationsd in qrtr, from Pavel Skripkin.
17) Prevent rx ring copnsumer index loss of sync in enetc, from Vladimir
Oltean.
18) Make sure textsearch copntrol block is large enough, from Wilem de
Bruijn.
19) Revert MAC changes to r8152 leading to instability, from Hates Wang.
20) Advance iov in 9p even for empty reads, from Jissheng Zhang.
21) Double hook unregister in nftables, from PabloNeira Ayuso.
22) Fix memleak in ixgbe, fropm Dinghao Liu.
23) Avoid dups in pkt scheduler class dumps, from Maximilian Heyne.
24) Various mptcp fixes from Florian Westphal, Paolo Abeni, and Geliang
Tang.
25) Fix DOI refcount bugs in cipso, from Paul Moore.
26) One too many irqsave in ibmvnic, from Junlin Yang.
27) Fix infinite loop with MPLS gso segmenting via virtio_net, from
Balazs Nemeth.
* git://git.kernel.org:/pub/scm/linux/kernel/git/netdev/net: (164 commits)
s390/qeth: fix notification for pending buffers during teardown
s390/qeth: schedule TX NAPI on QAOB completion
s390/qeth: improve completion of pending TX buffers
s390/qeth: fix memory leak after failed TX Buffer allocation
net: avoid infinite loop in mpls_gso_segment when mpls_hlen == 0
net: check if protocol extracted by virtio_net_hdr_set_proto is correct
net: dsa: xrs700x: check if partner is same as port in hsr join
net: lapbether: Remove netif_start_queue / netif_stop_queue
atm: idt77252: fix null-ptr-dereference
atm: uPD98402: fix incorrect allocation
atm: fix a typo in the struct description
net: qrtr: fix error return code of qrtr_sendmsg()
mptcp: fix length of ADD_ADDR with port sub-option
net: bonding: fix error return code of bond_neigh_init()
net: enetc: allow hardware timestamping on TX queues with tc-etf enabled
net: enetc: set MAC RX FIFO to recommended value
net: davicom: Use platform_get_irq_optional()
net: davicom: Fix regulator not turned off on driver removal
net: davicom: Fix regulator not turned off on failed probe
net: dsa: fix switchdev objects on bridge master mistakenly being applied on ports
...
For gso packets, virtio_net_hdr_set_proto sets the protocol (if it isn't
set) based on the type in the virtio net hdr, but the skb could contain
anything since it could come from packet_snd through a raw socket. If
there is a mismatch between what virtio_net_hdr_set_proto sets and
the actual protocol, then the skb could be handled incorrectly later
on.
An example where this poses an issue is with the subsequent call to
skb_flow_dissect_flow_keys_basic which relies on skb->protocol being set
correctly. A specially crafted packet could fool
skb_flow_dissect_flow_keys_basic preventing EINVAL to be returned.
Avoid blindly trusting the information provided by the virtio net header
by checking that the protocol in the packet actually matches the
protocol set by virtio_net_hdr_set_proto. Note that since the protocol
is only checked if skb->dev implements header_ops->parse_protocol,
packets from devices without the implementation are not checked at this
stage.
Fixes: 9274124f02 ("net: stricter validation of untrusted gso packets")
Signed-off-by: Balazs Nemeth <bnemeth@redhat.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There's no need to keep around a dentry pointer to a simple file that
debugfs itself can look up when we need to remove it from the system.
So simplify the code by deleting the variable and cleaning up the logic
around the debugfs file.
Cc: Marc Zyngier <maz@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/YCvYV53ZdzQSWY6w@kroah.com
Currently only search by index is supported. However, in some cases
we might need to pass the quirks to the acpi_dev_gpio_irq_get().
For this, split out acpi_dev_gpio_irq_get_by() and replace
acpi_dev_gpio_irq_get() by calling above with NULL for name parameter.
Fixes: ba8c90c618 ("gpio: pca953x: Override IRQ for one of the expanders on Galileo Gen 2")
Depends-on: 0ea683931a ("gpio: dwapb: Convert driver to using the GPIO-lib-based IRQ-chip")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
On some systems the ACPI tables has wrong pin number and instead of
having a relative one it provides an absolute one in the global GPIO
number space.
Add ACPI_GPIO_QUIRK_ABSOLUTE_NUMBER quirk to cope with such cases.
Fixes: ba8c90c618 ("gpio: pca953x: Override IRQ for one of the expanders on Galileo Gen 2")
Depends-on: 0ea683931a ("gpio: dwapb: Convert driver to using the GPIO-lib-based IRQ-chip")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
We don't use task file notes anymore, and no need left in indexing
task->io_uring->xa by file, and replace it with ctx. It's better
design-wise, especially since we keep a dangling file, and so have to
keep an eye on not dereferencing it.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Sometimes the PMU internal buffers have to be flushed for per-CPU events
during a context switch, e.g., large PEBS. Otherwise, the perf tool may
report samples in locations that do not belong to the process where the
samples are processed in, because PEBS does not tag samples with PID/TID.
The current code only flush the buffers for a per-task event. It doesn't
check a per-CPU event.
Add a new event state flag, PERF_ATTACH_SCHED_CB, to indicate that the
PMU internal buffers have to be flushed for this event during a context
switch.
Add sched_cb_entry and perf_sched_cb_usages back to track the PMU/cpuctx
which is required to be flushed.
Only need to invoke the sched_task() for per-CPU events in this patch.
The per-task events have been handled in perf_event_context_sched_in/out
already.
Fixes: 9c964efa43 ("perf/x86/intel: Drain the PEBS buffer during context switches")
Reported-by: Gabriel Marin <gmx@google.com>
Originally-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20201130193842.10569-1-kan.liang@linux.intel.com
-----BEGIN PGP SIGNATURE-----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=Cd/Z
-----END PGP SIGNATURE-----
Merge tag 'block-5.12-2021-03-05' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- NVMe fixes:
- more device quirks (Julian Einwag, Zoltán Böszörményi, Pascal
Terjan)
- fix a hwmon error return (Daniel Wagner)
- fix the keep alive timeout initialization (Martin George)
- ensure the model_number can't be changed on a used subsystem
(Max Gurtovoy)
- rsxx missing -EFAULT on copy_to_user() failure (Dan)
- rsxx remove unused linux.h include (Tian)
- kill unused RQF_SORTED (Jean)
- updated outdated BFQ comments (Joseph)
- revert work-around commit for bd_size_lock, since we removed the
offending user in this merge window (Damien)
* tag 'block-5.12-2021-03-05' of git://git.kernel.dk/linux-block:
nvmet: model_number must be immutable once set
nvme-fabrics: fix kato initialization
nvme-hwmon: Return error code when registration fails
nvme-pci: add quirks for Lexar 256GB SSD
nvme-pci: mark Kingston SKC2000 as not supporting the deepest power state
nvme-pci: mark Seagate Nytro XM1440 as QUIRK_NO_NS_DESC_LIST.
rsxx: Return -EFAULT if copy_to_user() fails
block/bfq: update comments and default value in docs for fifo_expire
rsxx: remove unused including <linux/version.h>
block: Drop leftover references to RQF_SORTED
block: revert "block: fix bd_size_lock use"
-----BEGIN PGP SIGNATURE-----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=w0Sf
-----END PGP SIGNATURE-----
Merge tag 'io_uring-5.12-2021-03-05' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"A bit of a mix between fallout from the worker change, cleanups and
reductions now possible from that change, and fixes in general. In
detail:
- Fully serialize manager and worker creation, fixing races due to
that.
- Clean up some naming that had gone stale.
- SQPOLL fixes.
- Fix race condition around task_work rework that went into this
merge window.
- Implement unshare. Used for when the original task does unshare(2)
or setuid/seteuid and friends, drops the original workers and forks
new ones.
- Drop the only remaining piece of state shuffling we had left, which
was cred. Move it into issue instead, and we can drop all of that
code too.
- Kill f_op->flush() usage. That was such a nasty hack that we had
out of necessity, we no longer need it.
- Following from ->flush() removal, we can also drop various bits of
ctx state related to SQPOLL and cancelations.
- Fix an issue with IOPOLL retry, which originally was fallout from a
filemap change (removing iov_iter_revert()), but uncovered an issue
with iovec re-import too late.
- Fix an issue with system suspend.
- Use xchg() for fallback work, instead of cmpxchg().
- Properly destroy io-wq on exec.
- Add create_io_thread() core helper, and use that in io-wq and
io_uring. This allows us to remove various silly completion events
related to thread setup.
- A few error handling fixes.
This should be the grunt of fixes necessary for the new workers, next
week should be quieter. We've got a pending series from Pavel on
cancelations, and how tasks and rings are indexed. Outside of that,
should just be minor fixes. Even with these fixes, we're still killing
a net ~80 lines"
* tag 'io_uring-5.12-2021-03-05' of git://git.kernel.dk/linux-block: (41 commits)
io_uring: don't restrict issue_flags for io_openat
io_uring: make SQPOLL thread parking saner
io-wq: kill hashed waitqueue before manager exits
io_uring: clear IOCB_WAITQ for non -EIOCBQUEUED return
io_uring: don't keep looping for more events if we can't flush overflow
io_uring: move to using create_io_thread()
kernel: provide create_io_thread() helper
io_uring: reliably cancel linked timeouts
io_uring: cancel-match based on flags
io-wq: ensure all pending work is canceled on exit
io_uring: ensure that threads freeze on suspend
io_uring: remove extra in_idle wake up
io_uring: inline __io_queue_async_work()
io_uring: inline io_req_clean_work()
io_uring: choose right tctx->io_wq for try cancel
io_uring: fix -EAGAIN retry with IOPOLL
io-wq: fix error path leak of buffered write hash map
io_uring: remove sqo_task
io_uring: kill sqo_dead and sqo submission halting
io_uring: ignore double poll add on the same waitqueue head
...
Make the empty stubs of some helper functions used when CONFIG_ACPI
is not set actually match those functions (Andy Shevchenko).
-----BEGIN PGP SIGNATURE-----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=7unj
-----END PGP SIGNATURE-----
Merge tag 'acpi-5.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Make the empty stubs of some helper functions used when CONFIG_ACPI is
not set actually match those functions (Andy Shevchenko)"
* tag 'acpi-5.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: bus: Constify is_acpi_node() and friends (part 2)
- Fix big endian conversion for arm64 in recordmcount processing
- Fix timestamp corruption in ring buffer on discarding events
- Fix memory leak in __create_synth_event()
- Skip selftests if tracing is disabled as it will cause them to fail.
Non-functional fixes:
- Fix help text in Kconfig
- Remove duplicate prototype for trace_empty()
- Fix stale comment about the trace_event_call flags.
Self test update:
- Add more information to the validation output of when a
corrupt timestamp is found in the ring buffer, and also
trigger a warning to make sure that tests catch it.
-----BEGIN PGP SIGNATURE-----
iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCYEI7FxQccm9zdGVkdEBn
b29kbWlzLm9yZwAKCRAp5XQQmuv6qrnYAP93jtHWFVYqhvGs8tVxpIus6wwFS5q8
T5VPEYp5ucHuRgD6A/MTmzi4zYeTYd8XwyzX6DC0XLhaGkRKDe/PC1V5jA8=
=tBtN
-----END PGP SIGNATURE-----
Merge tag 'trace-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
"Functional fixes:
- Fix big endian conversion for arm64 in recordmcount processing
- Fix timestamp corruption in ring buffer on discarding events
- Fix memory leak in __create_synth_event()
- Skip selftests if tracing is disabled as it will cause them to
fail.
Non-functional fixes:
- Fix help text in Kconfig
- Remove duplicate prototype for trace_empty()
- Fix stale comment about the trace_event_call flags.
Self test update:
- Add more information to the validation output of when a corrupt
timestamp is found in the ring buffer, and also trigger a warning
to make sure that tests catch it"
* tag 'trace-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Fix comment about the trace_event_call flags
tracing: Skip selftests if tracing is disabled
tracing: Fix memory leak in __create_synth_event()
ring-buffer: Add a little more information and a WARN when time stamp going backwards is detected
ring-buffer: Force before_stamp and write_stamp to be different on discard
tracing: Fix help text of TRACEPOINT_BENCHMARK in Kconfig
tracing: Remove duplicate declaration from trace.h
ftrace: Have recordmcount use w8 to read relp->r_info in arm64_is_fake_mcount
Provide a generic helper for setting up an io_uring worker. Returns a
task_struct so that the caller can do whatever setup is needed, then call
wake_up_new_task() to kick it into gear.
Add a kernel_clone_args member, io_thread, which tells copy_process() to
mark the task with PF_IO_WORKER.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Slightly bulky changes are seen at this time, mostly for dealing
with the messed up Kconfig for ASoC Intel SOF stuff. The driver
and its code was split to each module per platform now, which is
far more straightforward. This should cover the randconfig
problems, and more importantly, improve the actual device handling
as well.
Other than that, nothing particular stands out: the HDMI PCM
assignment fix for Intel Tigerlake, MIPS n64 error handling fix,
and the usual suspects, HD-audio / USB-audio quirks.
-----BEGIN PGP SIGNATURE-----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=FOED
-----END PGP SIGNATURE-----
Merge tag 'sound-5.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Slightly bulky changes are seen at this time, mostly for dealing with
the messed up Kconfig for ASoC Intel SOF stuff. The driver and its
code was split to each module per platform now, which is far more
straightforward. This should cover the randconfig problems, and more
importantly, improve the actual device handling as well.
Other than that, nothing particular stands out: the HDMI PCM
assignment fix for Intel Tigerlake, MIPS n64 error handling fix, and
the usual suspects, HD-audio / USB-audio quirks"
* tag 'sound-5.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (21 commits)
ALSA: hda/realtek: Apply dual codec quirks for MSI Godlike X570 board
ALSA: hda/realtek: Add quirk for Intel NUC 10
ALSA: hda/hdmi: let new platforms assign the pcm slot dynamically
ALSA: hda/realtek: Add quirk for Clevo NH55RZQ
ALSA: hda: intel-sdw-acpi: add missing include files
ALSA: hda: move Intel SoundWire ACPI scan to dedicated module
ASoC: SOF: Intel: SoundWire: simplify Kconfig
ASoC: SOF: pci: move DSP_CONFIG use to platform-specific drivers
ASoC: SOF: pci: split PCI into different drivers
ASoC: SOF: ACPI: avoid reverse module dependency
ASoC: soc-acpi: allow for partial match in parent name
ALSA: hda: intel-nhlt: verify config type
ALSA: hda: fix kernel-doc warnings
ALSA: usb-audio: Fix Pioneer DJM devices URB_CONTROL request direction to set samplerate
ALSA: usb-audio: use Corsair Virtuoso mapping for Corsair Virtuoso SE
ALSA: hda/realtek: Enable headset mic of Acer SWIFT with ALC256
ALSA: ctxfi: cthw20k2: fix mask on conf to allow 4 bits
ALSA: usb-audio: Allow modifying parameters with succeeding hw_params calls
ALSA: usb-audio: Drop bogus dB range in too low level
ALSA: usb-audio: Don't abort even if the clock rate differs
...
xdp_umem_query() is dead for a long time, drop the declaration from
include/linux/netdevice.h
Fixes: c9b47cc1fa ("xsk: fix bug when trying to use both copy and zero-copy on one queue id")
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Link: https://lore.kernel.org/bpf/20210303185636.18070-2-maciej.fijalkowski@intel.com
In the declaration of the struct trace_event_call, the flags has the bits
defined in the comment above it. But these bits are also defined by the
TRACE_EVENT_FL_* enums just above the declaration of the struct. As the
comment about the flags in the struct has become stale and incorrect, just
replace it with a reference to the TRACE_EVENT_FL_* enum above.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Destroy current's io-wq backend and tctx on __io_uring_task_cancel(),
aka exec(). Looks it's not strictly necessary, because it will be done
at some point when the task dies and changes of creds/files/etc. are
handled, but better to do that earlier to free io-wq and not potentially
lock previous mm and other resources for the time being.
It's safe to do because we wait for all requests of the current task to
complete, so no request will use tctx afterwards. Note, that
io_uring_files_cancel() may leave some requests for later reaping, so it
leaves tctx intact, that's ok as the task is dying anyway.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Commit 8b9d680258 ("ACPI: Constify acpi_bus helper functions,
switch to macros") only changed functions for CONFIG_ACPI=y case.
This part adjusts the rest.
Fixes: 8b9d680258 ("ACPI: Constify acpi_bus helper functions, switch to macros")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
We're not factoring in the start of the file for where to write and
read the swapfile, which leads to very unfortunate side effects of
writing where we should not be...
Fixes: 48d15436fd ("mm: remove get_swap_bio")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The ACPI scan capabilities is called from the intel-dspconfig as well
as the SOF/HDaudio drivers. This creates dependencies and randconfig issues
when HDaudio and SOF/SoundWire are not all configured as modules.
To simplify Kconfig dependencies between HDAudio, SoundWire, SOF and
intel-dspconfig, move the ACPI scan helpers to a dedicated
module. This follows the same idea as NHLT helpers which are already
handled as a dedicated module.
The only functional change is that the kernel parameter to filter
links is now handled by a different module, but that was only provided
for developers needing work-arounds for early BIOS releases.
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20210302003125.1178419-7-pierre-louis.bossart@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The referenced commit expands the skb_seq_state used by
skb_find_text with a 4B frag_off field, growing it to 48B.
This exceeds container ts_state->cb, causing a stack corruption:
[ 73.238353] Kernel panic - not syncing: stack-protector: Kernel stack
is corrupted in: skb_find_text+0xc5/0xd0
[ 73.247384] CPU: 1 PID: 376 Comm: nping Not tainted 5.11.0+ #4
[ 73.252613] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS 1.14.0-2 04/01/2014
[ 73.260078] Call Trace:
[ 73.264677] dump_stack+0x57/0x6a
[ 73.267866] panic+0xf6/0x2b7
[ 73.270578] ? skb_find_text+0xc5/0xd0
[ 73.273964] __stack_chk_fail+0x10/0x10
[ 73.277491] skb_find_text+0xc5/0xd0
[ 73.280727] string_mt+0x1f/0x30
[ 73.283639] ipt_do_table+0x214/0x410
The struct is passed between skb_find_text and its callbacks
skb_prepare_seq_read, skb_seq_read and skb_abort_seq read through
the textsearch interface using TS_SKB_CB.
I assumed that this mapped to skb->cb like other .._SKB_CB wrappers.
skb->cb is 48B. But it maps to ts_state->cb, which is only 40B.
skb->cb was increased from 40B to 48B after ts_state was introduced,
in commit 3e3850e989 ("[NETFILTER]: Fix xfrm lookup in
ip_route_me_harder/ip6_route_me_harder").
Increase ts_state.cb[] to 48 to fit the struct.
Also add a BUILD_BUG_ON to avoid a repeat.
The alternative is to directly add a dependency from textsearch onto
linux/skbuff.h, but I think the intent is textsearch to have no such
dependencies on its callers.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=211911
Fixes: 97550f6fa5 ("net: compound page support in skb_seq_read")
Reported-by: Kris Karas <bugs-a17@moonlit-rail.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull kmap conversion updates from David Sterba:
"This contains changes regarding kmap API use and eg conversion from
kmap_atomic to kmap_local_page.
The API belongs to memory management but to save cross-tree
dependency headaches we've agreed to take it through the btrfs tree
because there are some trivial conversions possible, while the rest
will need some time and getting the easy cases out of the way would be
convenient.
The changes can be grouped:
- function exports, new helpers
- new VM_BUG_ON for additional verification; it's been discussed if
it should be VM_BUG_ON or BUG_ON, the former was chosen due to
performance reasons
- code replaced by relevant helpers"
[ This is an updated version of a request that originally came in during
the merge window, but I asked for some updates:
https://lore.kernel.org/lkml/cover.1614090658.git.dsterba@suse.com/
which is why this got merge after the merge window closed. - Linus ]
* 'kmap-conversion-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: use copy_highpage() instead of 2 kmaps()
btrfs: use memcpy_[to|from]_page() and kmap_local_page()
mm/highmem: Add VM_BUG_ON() to mem*_page() calls
mm/highmem: Introduce memcpy_page(), memmove_page(), and memset_page()
mm/highmem: Convert memcpy_[to|from]_page() to kmap_local_page()
mm/highmem: Lift memcpy_[to|from]_page to core
