Here are some small char/misc/whatever driver fixes for 5.10-rc4.
Nothing huge, lots of small fixes for reported issues:
- habanalabs driver fixes
- speakup driver fixes
- uio driver fixes
- virtio driver fix
- other tiny driver fixes
Full details are in the shortlog.
All of these have been in linux-next for a full week with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small char/misc/whatever driver fixes for 5.10-rc4.
Nothing huge, lots of small fixes for reported issues:
- habanalabs driver fixes
- speakup driver fixes
- uio driver fixes
- virtio driver fix
- other tiny driver fixes
Full details are in the shortlog.
All of these have been in linux-next for a full week with no reported
issues"
* tag 'char-misc-5.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
uio: Fix use-after-free in uio_unregister_device()
firmware: xilinx: fix out-of-bounds access
nitro_enclaves: Fixup type and simplify logic of the poll mask setup
speakup ttyio: Do not schedule() in ttyio_in_nowait
speakup: Fix clearing selection in safe context
speakup: Fix var_id_t values and thus keymap
virtio: virtio_console: fix DMA memory allocation for rproc serial
habanalabs/gaudi: mask WDT error in QMAN
habanalabs/gaudi: move coresight mmu config
habanalabs: fix kernel pointer type
mei: protect mei_cl_mtu from null dereference
Here are some small Thunderbolt and USB driver fixes for 5.10-rc4 to
solve some reported issues.
Nothing huge in here, just small things:
- thunderbolt memory leaks fixed and new device ids added
- revert of problem patch for the musb driver
- new quirks added for USB devices
- typec power supply fixes to resolve much reported problems
about charging notifications not working anymore
All except the cdc-acm driver quirk addition have been in linux-next
with no reported issues (the quirk patch was applied on Friday, and is
self-contained.)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB and Thunderbolt fixes from Greg KH:
"Here are some small Thunderbolt and USB driver fixes for 5.10-rc4 to
solve some reported issues.
Nothing huge in here, just small things:
- thunderbolt memory leaks fixed and new device ids added
- revert of problem patch for the musb driver
- new quirks added for USB devices
- typec power supply fixes to resolve much reported problems about
charging notifications not working anymore
All except the cdc-acm driver quirk addition have been in linux-next
with no reported issues (the quirk patch was applied on Friday, and is
self-contained)"
* tag 'usb-5.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: cdc-acm: Add DISABLE_ECHO for Renesas USB Download mode
MAINTAINERS: add usb raw gadget entry
usb: typec: ucsi: Report power supply changes
xhci: hisilicon: fix refercence leak in xhci_histb_probe
Revert "usb: musb: convert to devm_platform_ioremap_resource_byname"
thunderbolt: Add support for Intel Tiger Lake-H
thunderbolt: Only configure USB4 wake for lane 0 adapters
thunderbolt: Add uaccess dependency to debugfs interface
thunderbolt: Fix memory leak if ida_simple_get() fails in enumerate_services()
thunderbolt: Add the missed ida_simple_remove() in ring_request_msix()
without two-dimensional paging (EPT/NPT).
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"Fixes for ARM and x86, the latter especially for old processors
without two-dimensional paging (EPT/NPT)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm: mmu: fix is_tdp_mmu_check when the TDP MMU is not in use
KVM: SVM: Update cr3_lm_rsvd_bits for AMD SEV guests
KVM: x86: Introduce cr3_lm_rsvd_bits in kvm_vcpu_arch
KVM: x86: clflushopt should be treated as a no-op by emulation
KVM: arm64: Handle SCXTNUM_ELx traps
KVM: arm64: Unify trap handlers injecting an UNDEF
KVM: arm64: Allow setting of ID_AA64PFR0_EL1.CSV2 from userspace
- Cure the fallout from the MSI irqdomain overhaul which missed that the
Intel IOMMU does not register virtual function devices and therefore
never reaches the point where the MSI interrupt domain is assigned. This
makes the VF devices use the non-remapped MSI domain which is trapped by
the IOMMU/remap unit.
- Remove an extra space in the SGI_UV architecture type procfs output for
UV5.
- Remove a unused function which was missed when removing the UV BAU TLB
shootdown handler.
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Merge tag 'x86-urgent-2020-11-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"A small set of fixes for x86:
- Cure the fallout from the MSI irqdomain overhaul which missed that
the Intel IOMMU does not register virtual function devices and
therefore never reaches the point where the MSI interrupt domain is
assigned. This made the VF devices use the non-remapped MSI domain
which is trapped by the IOMMU/remap unit
- Remove an extra space in the SGI_UV architecture type procfs output
for UV5
- Remove a unused function which was missed when removing the UV BAU
TLB shootdown handler"
* tag 'x86-urgent-2020-11-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
iommu/vt-d: Cure VF irqdomain hickup
x86/platform/uv: Fix copied UV5 output archtype
x86/platform/uv: Drop last traces of uv_flush_tlb_others
- A set of commits which reduce the stack usage of various perf event
handling functions which allocated large data structs on stack causing
stack overflows in the worst case.
- Use the proper mechanism for detecting soft interrupts in the recursion
protection.
- Make the resursion protection simpler and more robust.
- Simplify the scheduling of event groups to make the code more robust and
prepare for fixing the issues vs. scheduling of exclusive event groups.
- Prevent event multiplexing and rotation for exclusive event groups
- Correct the perf event attribute exclusive semantics to take pinned
events, e.g. the PMU watchdog, into account
- Make the anythread filtering conditional for Intel's generic PMU
counters as it is not longer guaranteed to be supported on newer
CPUs. Check the corresponding CPUID leaf to make sure.
- Fixup a duplicate initialization in an array which was probably cause by
the usual copy & paste - forgot to edit mishap.
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Merge tag 'perf-urgent-2020-11-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Thomas Gleixner:
"A set of fixes for perf:
- A set of commits which reduce the stack usage of various perf
event handling functions which allocated large data structs on
stack causing stack overflows in the worst case
- Use the proper mechanism for detecting soft interrupts in the
recursion protection
- Make the resursion protection simpler and more robust
- Simplify the scheduling of event groups to make the code more
robust and prepare for fixing the issues vs. scheduling of
exclusive event groups
- Prevent event multiplexing and rotation for exclusive event groups
- Correct the perf event attribute exclusive semantics to take
pinned events, e.g. the PMU watchdog, into account
- Make the anythread filtering conditional for Intel's generic PMU
counters as it is not longer guaranteed to be supported on newer
CPUs. Check the corresponding CPUID leaf to make sure
- Fixup a duplicate initialization in an array which was probably
caused by the usual 'copy & paste - forgot to edit' mishap"
* tag 'perf-urgent-2020-11-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel/uncore: Fix Add BW copypasta
perf/x86/intel: Make anythread filter support conditional
perf: Tweak perf_event_attr::exclusive semantics
perf: Fix event multiplexing for exclusive groups
perf: Simplify group_sched_in()
perf: Simplify group_sched_out()
perf/x86: Make dummy_iregs static
perf/arch: Remove perf_sample_data::regs_user_copy
perf: Optimize get_recursion_context()
perf: Fix get_recursion_context()
perf/x86: Reduce stack usage for x86_pmu::drain_pebs()
perf: Reduce stack usage of perf_output_begin()
- Address a load balancer regression by making the load balancer use the
same logic as the wakeup path to spread tasks in the LLC domain.
- Prefer the CPU on which a task run last over the local CPU in the fast
wakeup path for asymmetric CPU capacity systems to align with the
symmetric case. This ensures more locality and prevents massive
migration overhead on those asymetric systems
- Fix a memory corruption bug in the scheduler debug code caused by
handing a modified buffer pointer to kfree().
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Merge tag 'sched-urgent-2020-11-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Thomas Gleixner:
"A set of scheduler fixes:
- Address a load balancer regression by making the load balancer use
the same logic as the wakeup path to spread tasks in the LLC domain
- Prefer the CPU on which a task run last over the local CPU in the
fast wakeup path for asymmetric CPU capacity systems to align with
the symmetric case. This ensures more locality and prevents massive
migration overhead on those asymetric systems
- Fix a memory corruption bug in the scheduler debug code caused by
handing a modified buffer pointer to kfree()"
* tag 'sched-urgent-2020-11-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/debug: Fix memory corruption caused by multiple small reads of flags
sched/fair: Prefer prev cpu in asymmetric wakeup path
sched/fair: Ensure tasks spreading in LLC during LB
- Prevent an unconditional interrupt enable in a futex helper function
which can be called from contexts which expect interrupts to stay
disabled across the call.
- Don't modify lockdep chain keys in the validation process as that
causes chain inconsistency.
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Merge tag 'locking-urgent-2020-11-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Thomas Gleixner:
"Two fixes for the locking subsystem:
- Prevent an unconditional interrupt enable in a futex helper
function which can be called from contexts which expect interrupts
to stay disabled across the call
- Don't modify lockdep chain keys in the validation process as that
causes chain inconsistency"
* tag 'locking-urgent-2020-11-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
lockdep: Avoid to modify chain keys in validate_chain()
futex: Don't enable IRQs unconditionally in put_pi_state()
Pull percpu fix and cleanup from Dennis Zhou:
"A fix for a Wshadow warning in the asm-generic percpu macros came in
and then I tacked on the removal of flexible array initializers in the
percpu allocator"
* 'for-5.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu:
percpu: convert flexible array initializers to use struct_size()
asm-generic: percpu: avoid Wshadow warning
In some cases where shadow paging is in use, the root page will
be either mmu->pae_root or vcpu->arch.mmu->lm_root. Then it will
not have an associated struct kvm_mmu_page, because it is allocated
with alloc_page instead of kvm_mmu_alloc_page.
Just return false quickly from is_tdp_mmu_root if the TDP MMU is
not in use, which also includes the case where shadow paging is
enabled.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Merge fixes from Andrew Morton:
"14 patches.
Subsystems affected by this patch series: mm (migration, vmscan, slub,
gup, memcg, hugetlbfs), mailmap, kbuild, reboot, watchdog, panic, and
ocfs2"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
ocfs2: initialize ip_next_orphan
panic: don't dump stack twice on warn
hugetlbfs: fix anon huge page migration race
mm: memcontrol: fix missing wakeup polling thread
kernel/watchdog: fix watchdog_allowed_mask not used warning
reboot: fix overflow parsing reboot cpu number
Revert "kernel/reboot.c: convert simple_strtoul to kstrtoint"
compiler.h: fix barrier_data() on clang
mm/gup: use unpin_user_pages() in __gup_longterm_locked()
mm/slub: fix panic in slab_alloc_node()
mailmap: fix entry for Dmitry Baryshkov/Eremin-Solenikov
mm/vmscan: fix NR_ISOLATED_FILE corruption on 64-bit
mm/compaction: stop isolation if too many pages are isolated and we have pages to migrate
mm/compaction: count pages and stop correctly during page isolation
Three small fixes, all in the embedded ufs driver subsystem.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Three small fixes, all in the embedded ufs driver subsystem"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufshcd: Fix missing destroy_workqueue()
scsi: ufs: Try to save power mode change and UIC cmd completion timeout
scsi: ufs: Fix unbalanced scsi_block_reqs_cnt caused by ufshcd_hold()
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Merge tag 'selinux-pr-20201113' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux fix from Paul Moore:
"One small SELinux patch to make sure we return an error code when an
allocation fails. It passes all of our tests, but given the nature of
the patch that isn't surprising"
* tag 'selinux-pr-20201113' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: Fix error return code in sel_ib_pkey_sid_slow()
When afs_write_end() is called with copied == 0, it tries to set the
dirty region, but there's no way to actually encode a 0-length region in
the encoding in page->private.
"0,0", for example, indicates a 1-byte region at offset 0. The maths
miscalculates this and sets it incorrectly.
Fix it to just do nothing but unlock and put the page in this case. We
don't actually need to mark the page dirty as nothing presumably
changed.
Fixes: 65dd2d6072 ("afs: Alter dirty range encoding in page->private")
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Though problem if found on a lower 4.1.12 kernel, I think upstream has
same issue.
In one node in the cluster, there is the following callback trace:
# cat /proc/21473/stack
__ocfs2_cluster_lock.isra.36+0x336/0x9e0 [ocfs2]
ocfs2_inode_lock_full_nested+0x121/0x520 [ocfs2]
ocfs2_evict_inode+0x152/0x820 [ocfs2]
evict+0xae/0x1a0
iput+0x1c6/0x230
ocfs2_orphan_filldir+0x5d/0x100 [ocfs2]
ocfs2_dir_foreach_blk+0x490/0x4f0 [ocfs2]
ocfs2_dir_foreach+0x29/0x30 [ocfs2]
ocfs2_recover_orphans+0x1b6/0x9a0 [ocfs2]
ocfs2_complete_recovery+0x1de/0x5c0 [ocfs2]
process_one_work+0x169/0x4a0
worker_thread+0x5b/0x560
kthread+0xcb/0xf0
ret_from_fork+0x61/0x90
The above stack is not reasonable, the final iput shouldn't happen in
ocfs2_orphan_filldir() function. Looking at the code,
2067 /* Skip inodes which are already added to recover list, since dio may
2068 * happen concurrently with unlink/rename */
2069 if (OCFS2_I(iter)->ip_next_orphan) {
2070 iput(iter);
2071 return 0;
2072 }
2073
The logic thinks the inode is already in recover list on seeing
ip_next_orphan is non-NULL, so it skip this inode after dropping a
reference which incremented in ocfs2_iget().
While, if the inode is already in recover list, it should have another
reference and the iput() at line 2070 should not be the final iput
(dropping the last reference). So I don't think the inode is really in
the recover list (no vmcore to confirm).
Note that ocfs2_queue_orphans(), though not shown up in the call back
trace, is holding cluster lock on the orphan directory when looking up
for unlinked inodes. The on disk inode eviction could involve a lot of
IOs which may need long time to finish. That means this node could hold
the cluster lock for very long time, that can lead to the lock requests
(from other nodes) to the orhpan directory hang for long time.
Looking at more on ip_next_orphan, I found it's not initialized when
allocating a new ocfs2_inode_info structure.
This causes te reflink operations from some nodes hang for very long
time waiting for the cluster lock on the orphan directory.
Fix: initialize ip_next_orphan as NULL.
Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20201109171746.27884-1-wen.gang.wang@oracle.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Qian Cai reported the following BUG in [1]
LTP: starting move_pages12
BUG: unable to handle page fault for address: ffffffffffffffe0
...
RIP: 0010:anon_vma_interval_tree_iter_first+0xa2/0x170 avc_start_pgoff at mm/interval_tree.c:63
Call Trace:
rmap_walk_anon+0x141/0xa30 rmap_walk_anon at mm/rmap.c:1864
try_to_unmap+0x209/0x2d0 try_to_unmap at mm/rmap.c:1763
migrate_pages+0x1005/0x1fb0
move_pages_and_store_status.isra.47+0xd7/0x1a0
__x64_sys_move_pages+0xa5c/0x1100
do_syscall_64+0x5f/0x310
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Hugh Dickins diagnosed this as a migration bug caused by code introduced
to use i_mmap_rwsem for pmd sharing synchronization. Specifically, the
routine unmap_and_move_huge_page() is always passing the TTU_RMAP_LOCKED
flag to try_to_unmap() while holding i_mmap_rwsem. This is wrong for
anon pages as the anon_vma_lock should be held in this case. Further
analysis suggested that i_mmap_rwsem was not required to he held at all
when calling try_to_unmap for anon pages as an anon page could never be
part of a shared pmd mapping.
Discussion also revealed that the hack in hugetlb_page_mapping_lock_write
to drop page lock and acquire i_mmap_rwsem is wrong. There is no way to
keep mapping valid while dropping page lock.
This patch does the following:
- Do not take i_mmap_rwsem and set TTU_RMAP_LOCKED for anon pages when
calling try_to_unmap.
- Remove the hacky code in hugetlb_page_mapping_lock_write. The routine
will now simply do a 'trylock' while still holding the page lock. If
the trylock fails, it will return NULL. This could impact the
callers:
- migration calling code will receive -EAGAIN and retry up to the
hard coded limit (10).
- memory error code will treat the page as BUSY. This will force
killing (SIGKILL) instead of SIGBUS any mapping tasks.
Do note that this change in behavior only happens when there is a
race. None of the standard kernel testing suites actually hit this
race, but it is possible.
[1] https://lore.kernel.org/lkml/20200708012044.GC992@lca.pw/
[2] https://lore.kernel.org/linux-mm/alpine.LSU.2.11.2010071833100.2214@eggly.anvils/
Fixes: c0d0381ade ("hugetlbfs: use i_mmap_rwsem for more pmd sharing synchronization")
Reported-by: Qian Cai <cai@lca.pw>
Suggested-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20201105195058.78401-1-mike.kravetz@oracle.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When we poll the swap.events, we can miss being woken up when the swap
event occurs. Because we didn't notify.
Fixes: f3a53a3a1e ("mm, memcontrol: implement memory.swap.events")
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Yafang Shao <laoar.shao@gmail.com>
Cc: Chris Down <chris@chrisdown.name>
Cc: Tejun Heo <tj@kernel.org>
Link: https://lkml.kernel.org/r/20201105161936.98312-1-songmuchun@bytedance.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Define watchdog_allowed_mask only when SOFTLOCKUP_DETECTOR is enabled.
Fixes: 7feeb9cd4f ("watchdog/sysctl: Clean up sysctl variable name space")
Signed-off-by: Santosh Sivaraj <santosh@fossix.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20201106015025.1281561-1-santosh@fossix.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patch series "fix parsing of reboot= cmdline", v3.
The parsing of the reboot= cmdline has two major errors:
- a missing bound check can crash the system on reboot
- parsing of the cpu number only works if specified last
Fix both.
This patch (of 2):
This reverts commit 616feab753.
kstrtoint() and simple_strtoul() have a subtle difference which makes
them non interchangeable: if a non digit character is found amid the
parsing, the former will return an error, while the latter will just
stop parsing, e.g. simple_strtoul("123xyx") = 123.
The kernel cmdline reboot= argument allows to specify the CPU used for
rebooting, with the syntax `s####` among the other flags, e.g.
"reboot=warm,s31,force", so if this flag is not the last given, it's
silently ignored as well as the subsequent ones.
Fixes: 616feab753 ("kernel/reboot.c: convert simple_strtoul to kstrtoint")
Signed-off-by: Matteo Croce <mcroce@microsoft.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Fabian Frederick <fabf@skynet.be>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20201103214025.116799-2-mcroce@linux.microsoft.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 815f0ddb34 ("include/linux/compiler*.h: make compiler-*.h
mutually exclusive") neglected to copy barrier_data() from
compiler-gcc.h into compiler-clang.h.
The definition in compiler-gcc.h was really to work around clang's more
aggressive optimization, so this broke barrier_data() on clang, and
consequently memzero_explicit() as well.
For example, this results in at least the memzero_explicit() call in
lib/crypto/sha256.c:sha256_transform() being optimized away by clang.
Fix this by moving the definition of barrier_data() into compiler.h.
Also move the gcc/clang definition of barrier() into compiler.h,
__memory_barrier() is icc-specific (and barrier() is already defined
using it in compiler-intel.h) and doesn't belong in compiler.h.
[rdunlap@infradead.org: fix ALPHA builds when SMP is not enabled]
Link: https://lkml.kernel.org/r/20201101231835.4589-1-rdunlap@infradead.org
Fixes: 815f0ddb34 ("include/linux/compiler*.h: make compiler-*.h mutually exclusive")
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20201014212631.207844-1-nivedita@alum.mit.edu
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When FOLL_PIN is passed to __get_user_pages() the page list must be put
back using unpin_user_pages() otherwise the page pin reference persists
in a corrupted state.
There are two places in the unwind of __gup_longterm_locked() that put
the pages back without checking. Normally on error this function would
return the partial page list making this the caller's responsibility,
but in these two cases the caller is not allowed to see these pages at
all.
Fixes: 3faa52c03f ("mm/gup: track FOLL_PIN pages")
Reported-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/0-v2-3ae7d9d162e2+2a7-gup_cma_fix_jgg@nvidia.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
While doing memory hot-unplug operation on a PowerPC VM running 1024 CPUs
with 11TB of ram, I hit the following panic:
BUG: Kernel NULL pointer dereference on read at 0x00000007
Faulting instruction address: 0xc000000000456048
Oops: Kernel access of bad area, sig: 11 [#2]
LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS= 2048 NUMA pSeries
Modules linked in: rpadlpar_io rpaphp
CPU: 160 PID: 1 Comm: systemd Tainted: G D 5.9.0 #1
NIP: c000000000456048 LR: c000000000455fd4 CTR: c00000000047b350
REGS: c00006028d1b77a0 TRAP: 0300 Tainted: G D (5.9.0)
MSR: 8000000000009033 <SF,EE,ME,IR,DR,RI,LE> CR: 24004228 XER: 00000000
CFAR: c00000000000f1b0 DAR: 0000000000000007 DSISR: 40000000 IRQMASK: 0
GPR00: c000000000455fd4 c00006028d1b7a30 c000000001bec800 0000000000000000
GPR04: 0000000000000dc0 0000000000000000 00000000000374ef c00007c53df99320
GPR08: 000007c53c980000 0000000000000000 000007c53c980000 0000000000000000
GPR12: 0000000000004400 c00000001e8e4400 0000000000000000 0000000000000f6a
GPR16: 0000000000000000 c000000001c25930 c000000001d62528 00000000000000c1
GPR20: c000000001d62538 c00006be469e9000 0000000fffffffe0 c0000000003c0ff8
GPR24: 0000000000000018 0000000000000000 0000000000000dc0 0000000000000000
GPR28: c00007c513755700 c000000001c236a4 c00007bc4001f800 0000000000000001
NIP [c000000000456048] __kmalloc_node+0x108/0x790
LR [c000000000455fd4] __kmalloc_node+0x94/0x790
Call Trace:
kvmalloc_node+0x58/0x110
mem_cgroup_css_online+0x10c/0x270
online_css+0x48/0xd0
cgroup_apply_control_enable+0x2c4/0x470
cgroup_mkdir+0x408/0x5f0
kernfs_iop_mkdir+0x90/0x100
vfs_mkdir+0x138/0x250
do_mkdirat+0x154/0x1c0
system_call_exception+0xf8/0x200
system_call_common+0xf0/0x27c
Instruction dump:
e93e0000 e90d0030 39290008 7cc9402a e94d0030 e93e0000 7ce95214 7f89502a
2fbc0000 419e0018 41920230 e9270010 <89290007> 7f994800 419e0220 7ee6bb78
This pointing to the following code:
mm/slub.c:2851
if (unlikely(!object || !node_match(page, node))) {
c000000000456038: 00 00 bc 2f cmpdi cr7,r28,0
c00000000045603c: 18 00 9e 41 beq cr7,c000000000456054 <__kmalloc_node+0x114>
node_match():
mm/slub.c:2491
if (node != NUMA_NO_NODE && page_to_nid(page) != node)
c000000000456040: 30 02 92 41 beq cr4,c000000000456270 <__kmalloc_node+0x330>
page_to_nid():
include/linux/mm.h:1294
c000000000456044: 10 00 27 e9 ld r9,16(r7)
c000000000456048: 07 00 29 89 lbz r9,7(r9) <<<< r9 = NULL
node_match():
mm/slub.c:2491
c00000000045604c: 00 48 99 7f cmpw cr7,r25,r9
c000000000456050: 20 02 9e 41 beq cr7,c000000000456270 <__kmalloc_node+0x330>
The panic occurred in slab_alloc_node() when checking for the page's node:
object = c->freelist;
page = c->page;
if (unlikely(!object || !node_match(page, node))) {
object = __slab_alloc(s, gfpflags, node, addr, c);
stat(s, ALLOC_SLOWPATH);
The issue is that object is not NULL while page is NULL which is odd but
may happen if the cache flush happened after loading object but before
loading page. Thus checking for the page pointer is required too.
The cache flush is done through an inter processor interrupt when a
piece of memory is off-lined. That interrupt is triggered when a memory
hot-unplug operation is initiated and offline_pages() is calling the
slub's MEM_GOING_OFFLINE callback slab_mem_going_offline_callback()
which is calling flush_cpu_slab(). If that interrupt is caught between
the reading of c->freelist and the reading of c->page, this could lead
to such a situation. That situation is expected and the later call to
this_cpu_cmpxchg_double() will detect the change to c->freelist and redo
the whole operation.
In commit 6159d0f5c0 ("mm/slub.c: page is always non-NULL in
node_match()") check on the page pointer has been removed assuming that
page is always valid when it is called. It happens that this is not
true in that particular case, so check for page before calling
node_match() here.
Fixes: 6159d0f5c0 ("mm/slub.c: page is always non-NULL in node_match()")
Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Nathan Lynch <nathanl@linux.ibm.com>
Cc: Scott Cheloha <cheloha@linux.ibm.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20201027190406.33283-1-ldufour@linux.ibm.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Previously the negated unsigned long would be cast back to signed long
which would have the correct negative value. After commit 730ec8c01a
("mm/vmscan.c: change prototype for shrink_page_list"), the large
unsigned int converts to a large positive signed long.
Symptoms include CMA allocations hanging forever holding the cma_mutex
due to alloc_contig_range->...->isolate_migratepages_block waiting
forever in "while (unlikely(too_many_isolated(pgdat)))".
[akpm@linux-foundation.org: fix -stat.nr_lazyfree_fail as well, per Michal]
Fixes: 730ec8c01a ("mm/vmscan.c: change prototype for shrink_page_list")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Vaneet Narang <v.narang@samsung.com>
Cc: Maninder Singh <maninder1.s@samsung.com>
Cc: Amit Sahrawat <a.sahrawat@samsung.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20201029032320.1448441-1-npiggin@gmail.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In isolate_migratepages_block, if we have too many isolated pages and
nr_migratepages is not zero, we should try to migrate what we have
without wasting time on isolating.
In theory it's possible that multiple parallel compactions will cause
too_many_isolated() to become true even if each has isolated less than
COMPACT_CLUSTER_MAX, and loop forever in the while loop. Bailing
immediately prevents that.
[vbabka@suse.cz: changelog addition]
Fixes: 1da2f328fa (“mm,thp,compaction,cma: allow THP migration for CMA allocations”)
Suggested-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: <stable@vger.kernel.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Yang Shi <shy828301@gmail.com>
Link: https://lkml.kernel.org/r/20201030183809.3616803-2-zi.yan@sent.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In isolate_migratepages_block, when cc->alloc_contig is true, we are
able to isolate compound pages. But nr_migratepages and nr_isolated did
not count compound pages correctly, causing us to isolate more pages
than we thought.
So count compound pages as the number of base pages they contain.
Otherwise, we might be trapped in too_many_isolated while loop, since
the actual isolated pages can go up to COMPACT_CLUSTER_MAX*512=16384,
where COMPACT_CLUSTER_MAX is 32, since we stop isolation after
cc->nr_migratepages reaches to COMPACT_CLUSTER_MAX.
In addition, after we fix the issue above, cc->nr_migratepages could
never be equal to COMPACT_CLUSTER_MAX if compound pages are isolated,
thus page isolation could not stop as we intended. Change the isolation
stop condition to '>='.
The issue can be triggered as follows:
In a system with 16GB memory and an 8GB CMA region reserved by
hugetlb_cma, if we first allocate 10GB THPs and mlock them (so some THPs
are allocated in the CMA region and mlocked), reserving 6 1GB hugetlb
pages via /sys/kernel/mm/hugepages/hugepages-1048576kB/nr_hugepages will
get stuck (looping in too_many_isolated function) until we kill either
task. With the patch applied, oom will kill the application with 10GB
THPs and let hugetlb page reservation finish.
[ziy@nvidia.com: v3]
Link: https://lkml.kernel.org/r/20201030183809.3616803-1-zi.yan@sent.com
Fixes: 1da2f328fa ("cmm,thp,compaction,cma: allow THP migration for CMA allocations")
Signed-off-by: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Rik van Riel <riel@surriel.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20201029200435.3386066-1-zi.yan@sent.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
It turns out that I forgot to go through and make sure that I converted all
encoder callbacks to use atomic_enable/atomic_disable(), so let's go and
actually do that.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Fixes: 09838c4efe ("drm/nouveau/kms: Search for encoders' connectors properly")
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Pre-NV50 chipsets don't currently use the MMU subsystem that later
chipsets use, and type_vram is negative here, leading to an OOB memory
access.
This was previously guarded by a chipset check, restore that.
Reported-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 5839172f09 ("drm/nouveau: explicitly specify caching to use")
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
- Minor cleanups of the sb_start_* fs freeze helpers.
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Merge tag 'vfs-5.10-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull fs freeze fix and cleanups from Darrick Wong:
"A single vfs fix for 5.10, along with two subsequent cleanups.
A very long time ago, a hack was added to the vfs fs freeze protection
code to work around lockdep complaints about XFS, which would try to
run a transaction (which requires intwrite protection) to finalize an
xfs freeze (by which time the vfs had already taken intwrite).
Fast forward a few years, and XFS fixed the recursive intwrite problem
on its own, and the hack became unnecessary. Fast forward almost a
decade, and latent bugs in the code converting this hack from freeze
flags to freeze locks combine with lockdep bugs to make this reproduce
frequently enough to notice page faults racing with freeze.
Since the hack is unnecessary and causes thread race errors, just get
rid of it completely. Making this kind of vfs change midway through a
cycle makes me nervous, but a large enough number of the usual
VFS/ext4/XFS/btrfs suspects have said this looks good and solves a
real problem vector.
And once that removal is done, __sb_start_write is now simple enough
that it becomes possible to refactor the function into smaller,
simpler static inline helpers in linux/fs.h. The cleanup is
straightforward.
Summary:
- Finally remove the "convert to trylock" weirdness in the fs freezer
code. It was necessary 10 years ago to deal with nested
transactions in XFS, but we've long since removed that; and now
this is causing subtle race conditions when lockdep goes offline
and sb_start_* aren't prepared to retry a trylock failure.
- Minor cleanups of the sb_start_* fs freeze helpers"
* tag 'vfs-5.10-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
vfs: move __sb_{start,end}_write* to fs.h
vfs: separate __sb_start_write into blocking and non-blocking helpers
vfs: remove lockdep bogosity in __sb_start_write
- Fix a fairly serious problem where the reverse mapping btree key
comparison functions were silently ignoring parts of the keyspace when
doing comparisons.
- Fix a thinko in the online refcount scrubber.
- Fix a missing unlock in the pnfs code.
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Merge tag 'xfs-5.10-fixes-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong:
- Fix a fairly serious problem where the reverse mapping btree key
comparison functions were silently ignoring parts of the keyspace
when doing comparisons
- Fix a thinko in the online refcount scrubber
- Fix a missing unlock in the pnfs code
* tag 'xfs-5.10-fixes-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: fix a missing unlock on error in xfs_fs_map_blocks
xfs: fix brainos in the refcount scrubber's rmap fragment processor
xfs: fix rmap key and record comparison functions
xfs: set the unwritten bit in rmap lookup flags in xchk_bmap_get_rmapextents
xfs: fix flags argument to rmap lookup when converting shared file rmaps
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Merge tag 'block-5.10-2020-11-13' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A few small fixes:
- NVMe pull request from Christoph:
- don't clear the read-only bit on a revalidate (Sagi Grimberg)
- nbd error case refcount leak (Christoph)
- loop/generic uevent fix (Christoph, Petr)"
* tag 'block-5.10-2020-11-13' of git://git.kernel.dk/linux-block:
loop: Fix occasional uevent drop
block: add a return value to set_capacity_revalidate_and_notify
nbd: fix a block_device refcount leak in nbd_release
nvme: fix incorrect behavior when BLKROSET is called by the user
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Merge tag 'io_uring-5.10-2020-11-13' of git://git.kernel.dk/linux-block
Pull io_uring fix from Jens Axboe:
"A single fix in here, for a missed rounding case at setup time, which
caused an otherwise legitimate setup case to return -EINVAL if used
with unaligned ring size values"
* tag 'io_uring-5.10-2020-11-13' of git://git.kernel.dk/linux-block:
io_uring: round-up cq size before comparing with rounded sq size
- Two fixes to the Intel pin controller drivers: fixing
pull resistance bias.
- Fix some invalid SSI pins on the Ingenic pin controller.
- Make sure the clock is enabled when requesting interrupts
from the Rockchip GPIO controller.
- Make sure IRQs are mapped when looking up the IRQ for
a GPIO line on the Rockchip GPIO Write.
- Two regmap initialization fixes for the MCP23s08.
- Fix a GPI-only prefix function problem on the Aspeed pin
controller.
- Disable the debounce filter correctly on the AMD
pin controller.
- Correct the timer clock setting for the AMD debounce
timer.
- Make the Qualcomm pin controller more cautious around the
handling of PDC-related GPIO interrupts.
- Fix the interrupt map in the Qualcomm SM8250 pin controller.
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Merge tag 'pinctrl-v5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"A bunch of pin control fixes for the v5.10 kernel series.
Nothing in particular to say about it, because they are all driver
fixes.
I'm happy that some AMD driver fixes are appearing, it's been an
undermaintained driver, and laptops have suffered.
Summary:
- Two fixes to the Intel pin controller drivers: fixing pull
resistance bias.
- Fix some invalid SSI pins on the Ingenic pin controller.
- Make sure the clock is enabled when requesting interrupts from the
Rockchip GPIO controller.
- Make sure IRQs are mapped when looking up the IRQ for a GPIO line
on the Rockchip GPIO Write.
- Two regmap initialization fixes for the MCP23s08.
- Fix a GPI-only prefix function problem on the Aspeed pin
controller.
- Disable the debounce filter correctly on the AMD pin controller.
- Correct the timer clock setting for the AMD debounce timer.
- Make the Qualcomm pin controller more cautious around the handling
of PDC-related GPIO interrupts.
- Fix the interrupt map in the Qualcomm SM8250 pin controller"
* tag 'pinctrl-v5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: qcom: sm8250: Specify PDC map
pinctrl: qcom: Move clearing pending IRQ to .irq_request_resources callback
pinctrl: amd: use higher precision for 512 RtcClk
pinctrl: amd: fix incorrect way to disable debounce filter
pinctrl: aspeed: Fix GPI only function problem.
pinctrl: mcp23s08: Print error message when regmap init fails
pinctrl: mcp23s08: Use full chunk of memory for regmap configuration
pinctrl: rockchip: create irq mapping in gpio_to_irq
pinctrl: rockchip: enable gpio pclk for rockchip_gpio_to_irq
pinctrl: ingenic: Fix invalid SSI pins
pinctrl: intel: Set default bias in case no particular value given
pinctrl: intel: Fix 2 kOhm bias which is 833 Ohm
- Tidy up a missed function call in the designware driver
when converting to gpiolib irqchip.
- Fix some bitmasks in the Aspeed driver.
- Fix some kerneldoc warnings and minor bugs in the improved
userspace API documentation.
- Revert the revert of the OMAP fix for lost edge wakeup
interrupts: the fix needs to stay in.
- Fix a compile error when deselecting the character
device.
- A bunch of IRQ fixes on the idio GPIO drivers.
- Fix an off-by-one error in the SiFive GPIO driver.
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Merge tag 'gpio-v5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Some GPIO fixes I've collected with the help of Bartosz.
Nothing special about them: all are driver and kbuild fixes + some
documentation fixes:
- Tidy up a missed function call in the designware driver when
converting to gpiolib irqchip
- Fix some bitmasks in the Aspeed driver
- Fix some kerneldoc warnings and minor bugs in the improved
userspace API documentation
- Revert the revert of the OMAP fix for lost edge wakeup interrupts:
the fix needs to stay in
- Fix a compile error when deselecting the character device
- A bunch of IRQ fixes on the idio GPIO drivers
- Fix an off-by-one error in the SiFive GPIO driver"
* tag 'gpio-v5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: sifive: Fix SiFive gpio probe
gpio: pcie-idio-24: Enable PEX8311 interrupts
gpio: pcie-idio-24: Fix IRQ Enable Register value
gpio: pcie-idio-24: Fix irq mask when masking
gpiolib: fix sysfs when cdev is not selected
Revert "Revert "gpio: omap: Fix lost edge wake-up interrupts""
gpio: uapi: clarify the meaning of 'empty' char arrays
gpio: uapi: remove whitespace
gpio: uapi: kernel-doc formatting improvements
gpio: uapi: comment consistency
gpio: uapi: fix kernel-doc warnings
gpio: aspeed: fix ast2600 bank properties
gpio: dwapb: Fix missing conversion to GPIO-lib-based IRQ-chip
- tmio: Fixup support for reset
- sdhci-of-esdhc: Extend erratum for pulse width to more broken HWs
- renesas_sdhi: Fix re-binding of drivers
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Merge tag 'mmc-v5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
- tmio: Fixup support for reset
- sdhci-of-esdhc: Extend erratum for pulse width to more broken HWs
- renesas_sdhi: Fix re-binding of drivers
* tag 'mmc-v5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
Revert "mmc: renesas_sdhi: workaround a regression when reinserting SD cards"
mmc: tmio: bring tuning HW to a sane state with MMC_POWER_OFF
mmc: tmio: when resetting, reset DMA controller, too
mmc: sdhci-of-esdhc: Handle pulse width detection erratum for more SoCs
mmc: renesas_sdhi_core: Add missing tmio_mmc_host_free() at remove
amdgpu:
- Pageflip fix for DCN3
- Declare TA firmware for green sardine
- Headless navi fix
i915:
- Pull phys pread/pwrite implementations to the backend
- Correctly set SFC capability for video engines
bridge:
- cdns Kconfig fix
hyperv_fb:
- fix missing include
gma500:
- oob access fix
mcde:
- unbalanced regulator fix
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Merge tag 'drm-fixes-2020-11-13' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Nearly didn't send you a PR this week at all, but a few things
trickled in over the day, not a huge amount here, some i915, amdgpu
and a bunch of misc fixes. I have a couple of nouveau fixes
outstanding due to the PR having the wrong base, I'll figure it out
next week.
amdgpu:
- Pageflip fix for DCN3
- Declare TA firmware for green sardine
- Headless navi fix
i915:
- Pull phys pread/pwrite implementations to the backend
- Correctly set SFC capability for video engines
bridge:
- cdns Kconfig fix
hyperv_fb:
- fix missing include
gma500:
- oob access fix
mcde:
- unbalanced regulator fix"
* tag 'drm-fixes-2020-11-13' of git://anongit.freedesktop.org/drm/drm:
drm/amdgpu: enable DCN for navi10 headless SKU
drm/amdgpu: add ta firmware load for green-sardine
drm/i915: Correctly set SFC capability for video engines
drm/i915/gem: Pull phys pread/pwrite implementations to the backend
drm/i915/gem: Allow backends to override pread implementation
drm/mcde: Fix unbalanced regulator
drm/gma500: Fix out-of-bounds access to struct drm_device.vblank[]
video: hyperv_fb: include vmalloc.h
drm: bridge: cdns: Kconfig: Switch over dependency to ARCH_K3
drm/amd/display: Add missing pflip irq
GRUB may align the init ramdisk size to 4 bytes, the magic number at the
end of the init ramdisk that denotes bootconfig is attached may not be at
the exact end of the ramdisk. The kernel needs to check back at least 4
bytes.
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Merge tag 'trace-v5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull bootconfig fix from Steven Rostedt:
"Fix alignment of bootconfig
GRUB may align the init ramdisk size to 4 bytes, the magic number at
the end of the init ramdisk that denotes bootconfig is attached may
not be at the exact end of the ramdisk. The kernel needs to check back
at least 4 bytes"
* tag 'trace-v5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
bootconfig: Extend the magic check range to the preceding 3 bytes
Just one bug fix:
- avoid a fortify panic when copying optprobe template
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Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fix from Russell King:
"Just one bug fix: avoid a fortify panic when copying optprobe template"
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 9019/1: kprobes: Avoid fortify_panic() when copying optprobe template
- Spectre/Meltdown safelisting for some Qualcomm KRYO cores
- Fix RCU splat when failing to online a CPU due to a feature mismatch
- Fix a recently introduced sparse warning in kexec()
- Fix handling of CPU erratum 1418040 for late CPUs
- Ensure hot-added memory falls within linear-mapped region
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
- Spectre/Meltdown safelisting for some Qualcomm KRYO cores
- Fix RCU splat when failing to online a CPU due to a feature mismatch
- Fix a recently introduced sparse warning in kexec()
- Fix handling of CPU erratum 1418040 for late CPUs
- Ensure hot-added memory falls within linear-mapped region
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: cpu_errata: Apply Erratum 845719 to KRYO2XX Silver
arm64: proton-pack: Add KRYO2XX silver CPUs to spectre-v2 safe-list
arm64: kpti: Add KRYO2XX gold/silver CPU cores to kpti safelist
arm64: Add MIDR value for KRYO2XX gold/silver CPU cores
arm64/mm: Validate hotplug range before creating linear mapping
arm64: smp: Tell RCU about CPUs that fail to come online
arm64: psci: Avoid printing in cpu_psci_cpu_die()
arm64: kexec_file: Fix sparse warning
arm64: errata: Fix handling of 1418040 with late CPU onlining
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Merge tag 'ext4_for_linus_bugfixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"Two ext4 bug fixes, one being a revert of a commit sent during the
merge window"
* tag 'ext4_for_linus_bugfixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
Revert "ext4: fix superblock checksum calculation race"
ext4: handle dax mount option collision
Zheng Yongjun