When refactoring the SCM_RIGHTS code, I accidentally mis-merged my
native/compat diffs, which entirely broke using SCM_RIGHTS in compat
mode. Use the correct helper.
Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Link: https://lists.ozlabs.org/pipermail/linuxppc-dev/2020-August/216156.htmlReported-by: "Alex Xu (Hello71)" <alex_y_xu@yahoo.ca>
Link: https://lore.kernel.org/lkml/1596812929.lz7fuo8r2w.none@localhost/Suggested-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Fixes: c0029de5 ("net/scm: Regularize compat handling of scm_detach_fds()")
Tested-by: Alex Xu (Hello71) <alex_y_xu@yahoo.ca>
Acked-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Signed-off-by: Kees Cook <keescook@chromium.org>

Pull powerpc updates from Michael Ellerman:

 - Add support for (optionally) using queued spinlocks & rwlocks.

 - Support for a new faster system call ABI using the scv instruction on
   Power9 or later.

 - Drop support for the PROT_SAO mmap/mprotect flag as it will be
   unsupported on Power10 and future processors, leaving us with no way
   to implement the functionality it requests. This risks breaking
   userspace, though we believe it is unused in practice.

 - A bug fix for, and then the removal of, our custom stack expansion
   checking. We now allow stack expansion up to the rlimit, like other
   architectures.

 - Remove the remnants of our (previously disabled) topology update
   code, which tried to react to NUMA layout changes on virtualised
   systems, but was prone to crashes and other problems.

 - Add PMU support for Power10 CPUs.

 - A change to our signal trampoline so that we don't unbalance the link
   stack (branch return predictor) in the signal delivery path.

 - Lots of other cleanups, refactorings, smaller features and so on as
   usual.

Thanks to: Abhishek Goel, Alastair D'Silva, Alexander A. Klimov, Alexey
Kardashevskiy, Alistair Popple, Andrew Donnellan, Aneesh Kumar K.V, Anju
T Sudhakar, Anton Blanchard, Arnd Bergmann, Athira Rajeev, Balamuruhan
S, Bharata B Rao, Bill Wendling, Bin Meng, Cédric Le Goater, Chris
Packham, Christophe Leroy, Christoph Hellwig, Daniel Axtens, Dan
Williams, David Lamparter, Desnes A. Nunes do Rosario, Erhard F., Finn
Thain, Frederic Barrat, Ganesh Goudar, Gautham R. Shenoy, Geoff Levand,
Greg Kurz, Gustavo A. R. Silva, Hari Bathini, Harish, Imre Kaloz, Joel
Stanley, Joe Perches, John Crispin, Jordan Niethe, Kajol Jain, Kamalesh
Babulal, Kees Cook, Laurent Dufour, Leonardo Bras, Li RongQing, Madhavan
Srinivasan, Mahesh Salgaonkar, Mark Cave-Ayland, Michal Suchanek, Milton
Miller, Mimi Zohar, Murilo Opsfelder Araujo, Nathan Chancellor, Nathan
Lynch, Naveen N. Rao, Nayna Jain, Nicholas Piggin, Oliver O'Halloran,
Palmer Dabbelt, Pedro Miraglia Franco de Carvalho, Philippe Bergheaud,
Pingfan Liu, Pratik Rajesh Sampat, Qian Cai, Qinglang Miao, Randy
Dunlap, Ravi Bangoria, Sachin Sant, Sam Bobroff, Sandipan Das, Santosh
Sivaraj, Satheesh Rajendran, Shirisha Ganta, Sourabh Jain, Srikar
Dronamraju, Stan Johnson, Stephen Rothwell, Thadeu Lima de Souza
Cascardo, Thiago Jung Bauermann, Tom Lane, Vaibhav Jain, Vladis Dronov,
Wei Yongjun, Wen Xiong, YueHaibing.

* tag 'powerpc-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (337 commits)
  selftests/powerpc: Fix pkey syscall redefinitions
  powerpc: Fix circular dependency between percpu.h and mmu.h
  powerpc/powernv/sriov: Fix use of uninitialised variable
  selftests/powerpc: Skip vmx/vsx/tar/etc tests on older CPUs
  powerpc/40x: Fix assembler warning about r0
  powerpc/papr_scm: Add support for fetching nvdimm 'fuel-gauge' metric
  powerpc/papr_scm: Fetch nvdimm performance stats from PHYP
  cpuidle: pseries: Fixup exit latency for CEDE(0)
  cpuidle: pseries: Add function to parse extended CEDE records
  cpuidle: pseries: Set the latency-hint before entering CEDE
  selftests/powerpc: Fix online CPU selection
  powerpc/perf: Consolidate perf_callchain_user_[64|32]()
  powerpc/pseries/hotplug-cpu: Remove double free in error path
  powerpc/pseries/mobility: Add pr_debug() for device tree changes
  powerpc/pseries/mobility: Set pr_fmt()
  powerpc/cacheinfo: Warn if cache object chain becomes unordered
  powerpc/cacheinfo: Improve diagnostics about malformed cache lists
  powerpc/cacheinfo: Use name@unit instead of full DT path in debug messages
  powerpc/cacheinfo: Set pr_fmt()
  powerpc: fix function annotations to avoid section mismatch warnings with gcc-10
  ...

Pull m68knommu updates from Greg Ungerer:
 "Fixes include:

   - cleanup compiler warnings (IO access functions and unused
     variables)

   - ColdFire v3 cache control fix

   - ColdFire MMU comment cleanup

   - switch to using asm-generic cmpxchg_local()

   - stmark platform updates"

* tag 'm68knommu-for-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68k: stmark2: enable edma support for dspi
  m68k: use asm-generic cmpxchg_local()
  m68k: mcfmmu: remove stale part of comment about steal_context
  m68knommu: fix overwriting of bits in ColdFire V3 cache control
  m68k: fix ColdFire mmu init compile warning
  m68knommu: fix use of cpu_to_le() on IO access
  m68knommu: __force type casts for raw IO access
  m68k: stmark2: defconfig updates

Pull RISC-V updates from Palmer Dabbelt:
 "We have a lot of new kernel features for this merge window:

   - ARCH_SUPPORTS_ATOMIC_RMW, to allow OSQ locks to be enabled

   - The ability to enable NO_HZ_FULL

   - Support for enabling kcov, kmemleak, stack protector, and VM
     debugging

   - JUMP_LABEL support

  There are also a handful of cleanups"

* tag 'riscv-for-linus-5.9-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (24 commits)
  riscv: disable stack-protector for vDSO
  RISC-V: Fix build warning for smpboot.c
  riscv: fix build warning of mm/pageattr
  riscv: Fix build warning for mm/init
  RISC-V: Setup exception vector early
  riscv: Select ARCH_HAS_DEBUG_VM_PGTABLE
  riscv: Use generic pgprot_* macros from <linux/pgtable.h>
  mm: pgtable: Make generic pgprot_* macros available for no-MMU
  riscv: Cleanup unnecessary define in asm-offset.c
  riscv: Add jump-label implementation
  riscv: Support R_RISCV_ADD64 and R_RISCV_SUB64 relocs
  Replace HTTP links with HTTPS ones: RISC-V
  riscv: Add STACKPROTECTOR supported
  riscv: Fix typo in asm/hwcap.h uapi header
  riscv: Add kmemleak support
  riscv: Allow building with kcov coverage
  riscv: Enable context tracking
  riscv: Support irq_work via self IPIs
  riscv: Enable LOCKDEP_SUPPORT & fixup TRACE_IRQFLAGS_SUPPORT
  riscv: Fixup lockdep_assert_held with wrong param cpu_running
  ...

Pull init and set_fs() cleanups from Al Viro:
 "Christoph's 'getting rid of ksys_...() uses under KERNEL_DS' series"

* 'hch.init_path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (50 commits)
  init: add an init_dup helper
  init: add an init_utimes helper
  init: add an init_stat helper
  init: add an init_mknod helper
  init: add an init_mkdir helper
  init: add an init_symlink helper
  init: add an init_link helper
  init: add an init_eaccess helper
  init: add an init_chmod helper
  init: add an init_chown helper
  init: add an init_chroot helper
  init: add an init_chdir helper
  init: add an init_rmdir helper
  init: add an init_unlink helper
  init: add an init_umount helper
  init: add an init_mount helper
  init: mark create_dev as __init
  init: mark console_on_rootfs as __init
  init: initialize ramdisk_execute_command at compile time
  devtmpfs: refactor devtmpfsd()
  ...

Pull ptrace regset updates from Al Viro:
 "Internal regset API changes:

   - regularize copy_regset_{to,from}_user() callers

   - switch to saner calling conventions for ->get()

   - kill user_regset_copyout()

  The ->put() side of things will have to wait for the next cycle,
  unfortunately.

  The balance is about -1KLoC and replacements for ->get() instances are
  a lot saner"

* 'work.regset' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (41 commits)
  regset: kill user_regset_copyout{,_zero}()
  regset(): kill ->get_size()
  regset: kill ->get()
  csky: switch to ->regset_get()
  xtensa: switch to ->regset_get()
  parisc: switch to ->regset_get()
  nds32: switch to ->regset_get()
  nios2: switch to ->regset_get()
  hexagon: switch to ->regset_get()
  h8300: switch to ->regset_get()
  openrisc: switch to ->regset_get()
  riscv: switch to ->regset_get()
  c6x: switch to ->regset_get()
  ia64: switch to ->regset_get()
  arc: switch to ->regset_get()
  arm: switch to ->regset_get()
  sh: convert to ->regset_get()
  arm64: switch to ->regset_get()
  mips: switch to ->regset_get()
  sparc: switch to ->regset_get()
  ...

The code for preallocate_vmalloc_pages() was written under the
assumption that the p4d_offset() and pud_offset() functions will perform
present checks before dereferencing the parent entries.

This assumption is wrong an leads to a bug in the code which causes the
physical address found in the PGD be used as a page-table page, even if
the PGD is not present.

So the code flow currently is:

	pgd = pgd_offset_k(addr);
	p4d = p4d_offset(pgd, addr);
	if (p4d_none(*p4d))
		p4d = p4d_alloc(&init_mm, pgd, addr);

This lacks a check for pgd_none() at least, the correct flow would be:

	pgd = pgd_offset_k(addr);
	if (pgd_none(*pgd))
		p4d = p4d_alloc(&init_mm, pgd, addr);
	else
		p4d = p4d_offset(pgd, addr);

But this is the same flow that the p4d_alloc() and the pud_alloc()
functions use internally, so there is no need to duplicate them.

Remove the p?d_none() checks from the function and just call into
p4d_alloc() and pud_alloc() to correctly pre-allocate the PGD entries.
Reported-and-tested-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Fixes: 6eb82f99 ("x86/mm: Pre-allocate P4D/PUD pages for vmalloc area")
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Commit 58552408 ("random: random.h should include archrandom.h, not
the other way around") tries to fix a problem with recursive inclusion
of linux/random.h and arch/archrandom.h for arm64.  Unfortunately, this
results in the following compile error if ARCH_RANDOM is disabled.

  arch/arm64/kernel/kaslr.c: In function 'kaslr_early_init':
  arch/arm64/kernel/kaslr.c:128:6: error: implicit declaration of function '__early_cpu_has_rndr'; did you mean '__early_pfn_to_nid'? [-Werror=implicit-function-declaration]
    if (__early_cpu_has_rndr()) {
        ^~~~~~~~~~~~~~~~~~~~
        __early_pfn_to_nid
  arch/arm64/kernel/kaslr.c:131:7: error: implicit declaration of function '__arm64_rndr' [-Werror=implicit-function-declaration]
     if (__arm64_rndr(&raw))
         ^~~~~~~~~~~~

The problem is that arch/archrandom.h is only included from
linux/random.h if ARCH_RANDOM is enabled.  If not, __arm64_rndr() and
__early_cpu_has_rndr() are undeclared, causing the problem.

Use arch_get_random_seed_long_early() instead of arm64 specific
functions to solve the problem.
Reported-by: Qian Cai <cai@lca.pw>
Fixes: 58552408 ("random: random.h should include archrandom.h, not the other way around")
Cc: Qian Cai <cai@lca.pw>
Cc: Mark Brown <broonie@kernel.org>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Tested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

We just don't do that.  "default y" is for things that are needed for
compatibility (when an old feature is made unconditional), or for things
that are basically part of the infrastructure of a platform.

And it can possibly be used for questions that don't enable code on
their own, but are used to enable or disable a whole slew of other
questions.

A new feature that people aren't using is never 'default y', unless it
cures cancer or ends world hunger.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull dlm updates from David Teigland:
 "This set includes a some improvements to the dlm networking layer:
  improving the ability to trace dlm messages for debugging, and
  improved handling of bad messages or disrupted connections"

* tag 'dlm-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
  fs: dlm: implement tcp graceful shutdown
  fs: dlm: change handling of reconnects
  fs: dlm: don't close socket on invalid message
  fs: dlm: set skb mark per peer socket
  fs: dlm: set skb mark for listen socket
  net: sock: add sock_set_mark
  dlm: Fix kobject memleak

Pull iomap updates from Darrick Wong:
 "The most notable changes are:

   - iomap no longer invalidates the page cache when performing a direct
     read, since doing so is unnecessary and the old directio code
     doesn't do that either.

   - iomap embraced the use of returning ENOTBLK from a direct write to
     trigger falling back to a buffered write since ext4 already did
     this and btrfs wants it for their port.

   - iomap falls back to buffered writes if we're doing a direct write
     and the page cache invalidation after the flush fails; this was
     necessary to handle a corner case in the btrfs port.

   - Remove email virus scanner detritus that was accidentally included
     in yesterday's pull request. Clearly I need(ed) to update my git
     branch checker scripts. :("

* tag 'iomap-5.9-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  iomap: fall back to buffered writes for invalidation failures
  xfs: use ENOTBLK for direct I/O to buffered I/O fallback
  iomap: Only invalidate page cache pages on direct IO writes
  iomap: Make sure iomap_end is called after iomap_begin

Pull fsnotify updates from Jan Kara:

 - fanotify fix for softlockups when there are many queued events

 - performance improvement to reduce fsnotify overhead when not used

 - Amir's implementation of fanotify events with names. With these you
   can now efficiently monitor whole filesystem, eg to mirror changes to
   another machine.

* tag 'fsnotify_for_v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: (37 commits)
  fanotify: compare fsid when merging name event
  fsnotify: create method handle_inode_event() in fsnotify_operations
  fanotify: report parent fid + child fid
  fanotify: report parent fid + name + child fid
  fanotify: add support for FAN_REPORT_NAME
  fanotify: report events with parent dir fid to sb/mount/non-dir marks
  fanotify: add basic support for FAN_REPORT_DIR_FID
  fsnotify: remove check that source dentry is positive
  fsnotify: send event with parent/name info to sb/mount/non-dir marks
  audit: do not set FS_EVENT_ON_CHILD in audit marks mask
  inotify: do not set FS_EVENT_ON_CHILD in non-dir mark mask
  fsnotify: pass dir and inode arguments to fsnotify()
  fsnotify: create helper fsnotify_inode()
  fsnotify: send event to parent and child with single callback
  inotify: report both events on parent and child with single callback
  dnotify: report both events on parent and child with single callback
  fanotify: no external fh buffer in fanotify_name_event
  fanotify: use struct fanotify_info to parcel the variable size buffer
  fsnotify: add object type "child" to object type iterator
  fanotify: use FAN_EVENT_ON_CHILD as implicit flag on sb/mount/non-dir marks
  ...

Pull ext2, udf, reiserfs, quota cleanups and minor fixes from Jan Kara:
 "A few ext2 fixups and then several (mostly comment and documentation)
  cleanups in ext2, udf, reiserfs, and quota"

* tag 'for_v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  reiserfs: delete duplicated words
  udf: osta_udf.h: delete a duplicated word
  reiserfs: reiserfs.h: delete a duplicated word
  ext2: ext2.h: fix duplicated word + typos
  udf: Replace HTTP links with HTTPS ones
  quota: Fixup http links in quota doc
  Replace HTTP links with HTTPS ones: DISKQUOTA
  ext2: initialize quota info in ext2_xattr_set()
  ext2: fix some incorrect comments in inode.c
  ext2: remove nocheck option
  ext2: fix missing percpu_counter_inc
  ext2: ext2_find_entry() return -ENOENT if no entry found
  ext2: propagate errors up to ext2_find_entry()'s callers
  ext2: fix improper assignment for e_value_offs

Pull erofs updates from Gao Xiang:
 "This cycle mainly addresses an issue out of some extended inode with
  designated location, which are not generated by current mkfs but need
  to handled at runtime anyway. The others are quite trivial ones.

   - use HTTPS links instead of insecure HTTP ones;

   - fix crossing page boundary on specific extended inodes;

   - remove useless WQ_CPU_INTENSIVE flag for unbound wq;

   - minor cleanup"

* tag 'erofs-for-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
  erofs: remove WQ_CPU_INTENSIVE flag from unbound wq's
  erofs: fold in used-once helper erofs_workgroup_unfreeze_final()
  erofs: fix extended inode could cross boundary
  erofs: Replace HTTP links with HTTPS ones

Pull cifs updates from Steve French:
 "16 cifs/smb3 fixes, about half DFS related, two fixes for stable.

  Still working on and testing an additional set of fixes (including
  updates to mount, and some fallocate scenario improvements) for later
  in the merge window"

* tag '5.9-rc-smb3-fixes-part1' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: document and cleanup dfs mount
  cifs: only update prefix path of DFS links in cifs_tree_connect()
  cifs: fix double free error on share and prefix
  cifs: handle RESP_GET_DFS_REFERRAL.PathConsumed in reconnect
  cifs: handle empty list of targets in cifs_reconnect()
  cifs: rename reconn_inval_dfs_target()
  cifs: reduce number of referral requests in DFS link lookups
  cifs: merge __{cifs,smb2}_reconnect[_tcon]() into cifs_tree_connect()
  cifs: convert to use be32_add_cpu()
  cifs: delete duplicated words in header files
  cifs: Remove the superfluous break
  cifs: smb1: Try failing back to SetFileInfo if SetPathInfo fails
  cifs`: handle ERRBaduid for SMB1
  cifs: remove unused variable 'server'
  smb3: warn on confusing error scenario with sec=krb5
  cifs: Fix leak when handling lease break for cached root fid

Pull thermal updates from Daniel Lezcano:

 - Add support to enable/disable the thermal zones resulting on core
   code and drivers cleanup (Andrzej Pietrasiewicz)

 - Add generic netlink support for userspace notifications: events,
   temperature and discovery commands (Daniel Lezcano)

 - Fix redundant initialization for a ret variable (Colin Ian King)

 - Remove the clock cooling code as it is used nowhere (Amit Kucheria)

 - Add the rcar_gen3_thermal's r8a774e1 support (Marian-Cristian
   Rotariu)

 - Replace all references to thermal.txt in the documentation to the
   corresponding yaml files (Amit Kucheria)

 - Add maintainer entry for the IPA (Lukasz Luba)

 - Add support for MSM8939 for the tsens (Shawn Guo)

 - Update power allocator and devfreq cooling to SPDX licensing (Lukasz
   Luba)

 - Add Cannon Lake Low Power PCH support (Sumeet Pawnikar)

 - Add tsensor support for V2 mediatek thermal system (Henry Yen)

 - Fix thermal zone lookup by ID for the core code (Thierry Reding)

* tag 'thermal-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (40 commits)
  thermal: intel: intel_pch_thermal: Add Cannon Lake Low Power PCH support
  thermal: mediatek: Add tsensor support for V2 thermal system
  thermal: mediatek: Prepare to add support for other platforms
  thermal: Update power allocator and devfreq cooling to SPDX licensing
  MAINTAINERS: update entry to thermal governors file name prefixing
  thermal: core: Add thermal zone enable/disable notification
  thermal: qcom: tsens-v0_1: Add support for MSM8939
  dt-bindings: tsens: qcom: Document MSM8939 compatible
  thermal: core: Fix thermal zone lookup by ID
  thermal: int340x: processor_thermal: fix: update Jasper Lake PCI id
  thermal: imx8mm: Support module autoloading
  thermal: ti-soc-thermal: Fix reversed condition in ti_thermal_expose_sensor()
  MAINTAINERS: Add maintenance information for IPA
  thermal: rcar_gen3_thermal: Do not shadow thcode variable
  dt-bindings: thermal: Get rid of thermal.txt and replace references
  thermal: core: Move initialization after core initcall
  thermal: netlink: Improve the initcall ordering
  net: genetlink: Move initialization to core_initcall
  thermal: rcar_gen3_thermal: Add r8a774e1 support
  thermal/drivers/clock_cooling: Remove clock_cooling code
  ...

Pull auxdisplay update from Miguel Ojeda:
 "Minor cleanup for auxdisplay: rReuse hex_to_bin() instead of custom
  code (Andy Shevchenko)"

* tag 'auxdisplay-for-linus-v5.9-rc1' of git://github.com/ojeda/linux:
  auxdisplay: charlcd: Reuse hex_to_bin() instead of custom code

Pull SCSI updates from James Bottomley:
 "This consists of the usual driver updates (ufs, qla2xxx, tcmu, lpfc,
  hpsa, zfcp, scsi_debug) and minor bug fixes.

  We also have a huge docbook fix update like most other subsystems and
  no major update to the core (the few non trivial updates are either
  minor fixes or removing an unused feature [scsi_sdb_cache])"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (307 commits)
  scsi: scsi_transport_srp: Sanitize scsi_target_block/unblock sequences
  scsi: ufs-mediatek: Apply DELAY_AFTER_LPM quirk to Micron devices
  scsi: ufs: Introduce device quirk "DELAY_AFTER_LPM"
  scsi: virtio-scsi: Correctly handle the case where all LUNs are unplugged
  scsi: scsi_debug: Implement tur_ms_to_ready parameter
  scsi: scsi_debug: Fix request sense
  scsi: lpfc: Fix typo in comment for ULP
  scsi: ufs-mediatek: Prevent LPM operation on undeclared VCC
  scsi: iscsi: Do not put host in iscsi_set_flashnode_param()
  scsi: hpsa: Correct ctrl queue depth
  scsi: target: tcmu: Make TMR notification optional
  scsi: target: tcmu: Implement tmr_notify callback
  scsi: target: tcmu: Fix and simplify timeout handling
  scsi: target: tcmu: Factor out new helper ring_insert_padding
  scsi: target: tcmu: Do not queue aborted commands
  scsi: target: tcmu: Use priv pointer in se_cmd
  scsi: target: Add tmr_notify backend function
  scsi: target: Modify core_tmr_abort_task()
  scsi: target: iscsi: Fix inconsistent debug message
  scsi: target: iscsi: Fix login error when receiving
  ...

Pull rdma updates from Jason Gunthorpe:
 "A quiet cycle after the larger 5.8 effort. Substantially cleanup and
  driver work with a few smaller features this time.

   - Driver updates for hfi1, rxe, mlx5, hns, qedr, usnic, bnxt_re

   - Removal of dead or redundant code across the drivers

   - RAW resource tracker dumps to include a device specific data blob
     for device objects to aide device debugging

   - Further advance the IOCTL interface, remove the ability to turn it
     off. Add QUERY_CONTEXT, QUERY_MR, and QUERY_PD commands

   - Remove stubs related to devices with no pkey table

   - A shared CQ scheme to allow multiple ULPs to share the CQ rings of
     a device to give higher performance

   - Several more static checker, syzkaller and rare crashers fixed"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (121 commits)
  RDMA/mlx5: Fix flow destination setting for RDMA TX flow table
  RDMA/rxe: Remove pkey table
  RDMA/umem: Add a schedule point in ib_umem_get()
  RDMA/hns: Fix the unneeded process when getting a general type of CQE error
  RDMA/hns: Fix error during modify qp RTS2RTS
  RDMA/hns: Delete unnecessary memset when allocating VF resource
  RDMA/hns: Remove redundant parameters in set_rc_wqe()
  RDMA/hns: Remove support for HIP08_A
  RDMA/hns: Refactor hns_roce_v2_set_hem()
  RDMA/hns: Remove redundant hardware opcode definitions
  RDMA/netlink: Remove CAP_NET_RAW check when dump a raw QP
  RDMA/include: Replace license text with SPDX tags
  RDMA/rtrs: remove WQ_MEM_RECLAIM for rtrs_wq
  RDMA/rtrs-clt: add an additional random 8 seconds before reconnecting
  RDMA/cma: Execute rdma_cm destruction from a handler properly
  RDMA/cma: Remove unneeded locking for req paths
  RDMA/cma: Using the standard locking pattern when delivering the removal event
  RDMA/cma: Simplify DEVICE_REMOVAL for internal_id
  RDMA/efa: Add EFA 0xefa1 PCI ID
  RDMA/efa: User/kernel compatibility handshake mechanism
  ...

Pull tty/serial updates from Greg KH:
 "Here is the large set of TTY and Serial driver patches for 5.9-rc1.

  Lots of bugfixes in here, thanks to syzbot fuzzing for serial and vt
  and console code.

  Other highlights include:

   - much needed vt/vc code cleanup from Jiri Slaby

   - 8250 driver fixes and additions

   - various serial driver updates and feature enhancements

   - locking cleanup for serial/console initializations

   - other minor cleanups

  All of these have been in linux-next with no reported issues"

* tag 'tty-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (90 commits)
  MAINTAINERS: enlist Greg formally for console stuff
  vgacon: Fix for missing check in scrollback handling
  Revert "serial: 8250: Let serial core initialise spin lock"
  serial: 8250: Let serial core initialise spin lock
  tty: keyboard, do not speculate on func_table index
  serial: stm32: Add RS485 RTS GPIO control
  serial: 8250_dw: Fix common clocks usage race condition
  serial: 8250_dw: Pass the same rate to the clk round and set rate methods
  serial: 8250_dw: Simplify the ref clock rate setting procedure
  serial: 8250: Add 8250 port clock update method
  tty: serial: imx: add imx earlycon driver
  tty: serial: imx: enable imx serial console port as module
  tty/synclink: remove leftover bits of non-PCI card support
  tty: Use the preferred form for passing the size of a structure type
  tty: Fix identation issues in struct serial_struct32
  tty: Avoid the use of one-element arrays
  serial: msm_serial: add sparse context annotation
  serial: pmac_zilog: add sparse context annotation
  newport_con: vc_color is now in state
  serial: imx: use hrtimers for rs485 delays
  ...

Pull staging/IIO driver updates from Greg KH:
 "Here is the large set of Staging and IIO driver patches for 5.9-rc1.

  Lots of churn here, but overall the size increase in lines added is
  small, while adding a load of new IIO drivers.

  Major things in here:

   - lots and lots of IIO new drivers and frameworks added

   - IIO driver fixes and updates

   - lots of tiny coding style cleanups for staging drivers

   - vc04_services major reworks and cleanups

  We had 3 set of drivers move out of staging in this round as well:

   - wilc1000 wireless driver moved out of staging

   - speakup moved out of staging

   - most USB driver moved out of staging

  Full details are in the shortlog.

  All of these have been in linux-next with no reported issues. The last
  few changes here were to resolve reported linux-next issues, and they
  seem to have resolved the problems"

* tag 'staging-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (428 commits)
  staging: most: fix up movement of USB driver
  staging: rts5208: clear alignment style issues
  staging: r8188eu: replace rtw_netdev_priv define with inline function
  staging: netlogic: clear alignment style issues
  staging: android: ashmem: Fix lockdep warning for write operation
  drivers: most: add USB adapter driver
  staging: most: Use %pM format specifier for MAC addresses
  staging: ks7010: Use %pM format specifier for MAC addresses
  staging: qlge: qlge_dbg: removed comment repition
  staging: wfx: Use flex_array_size() helper in memcpy()
  staging: rtl8723bs: Align macro definitions
  staging: rtl8723bs: Clean up function declations
  staging: rtl8723bs: Fix coding style errors
  drivers: staging: audio: Fix the missing header file for helper file
  staging: greybus: audio: Enable GB codec, audio module compilation.
  staging: greybus: audio: Add helper APIs for dynamic audio modules
  staging: greybus: audio: Resolve compilation error in topology parser
  staging: greybus: audio: Resolve compilation errors for GB codec module
  staging: greybus: audio: Maintain jack list within GB Audio module
  staging: greybus: audio: Update snd_jack FW usage as per new APIs
  ...

Pull sound updates from Takashi Iwai:
 "This became wide and scattered updates all over the sound tree as
  diffstat shows: lots of (still ongoing) refactoring works in ASoC,
  fixes and cleanups caught by static analysis, inclusive term
  conversions as well as lots of new drivers. Below are highlights:

  ASoC core:
   - API cleanups and conversions to the unified mute_stream() call
   - Simplify I/O helper functions
   - Use helper macros to retrieve RTD from substreams

  ASoC drivers:
   - Lots of fixes and cleanups in Intel ASoC drivers
   - Lots of new stuff: Freescale MQS and i.MX6sx, Intel KeemBay I2S,
     Maxim MAX98360A and MAX98373 SoundWire, various Mediatek boards,
     nVidia Tegra 186 and 210, RealTek RL6231, Samsung Midas and Aries
     boards, TI J721e EVM

  ALSA core:
   - Minor code refacotring for SG-buffer handling

  HD-audio:
   - Generalization of mute-LED handling with LED classdev
   - Intel silent stream support for HDMI
   - Device-specific fixes: CA0132, Loongson-3

  Others:
   - Usual USB- and HD-audio quirks for various devices
   - Fixes for echoaudio DMA position handling
   - Various documents and trivial fixes for sparse warnings
   - Conversion to adopt inclusive terms"

* tag 'sound-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (479 commits)
  ALSA: pci: delete repeated words in comments
  ALSA: isa: delete repeated words in comments
  ALSA: hda/tegra: Add 100us dma stop delay
  ALSA: hda: Add dma stop delay variable
  ASoC: hda/tegra: Set buffer alignment to 128 bytes
  ALSA: seq: oss: Serialize ioctls
  ALSA: hda/hdmi: Add quirk to force connectivity
  ALSA: usb-audio: add startech usb audio dock name
  ALSA: usb-audio: Add support for Lenovo ThinkStation P620
  Revert "ALSA: hda: call runtime_allow() for all hda controllers"
  ALSA: hda/ca0132 - Fix AE-5 microphone selection commands.
  ALSA: hda/ca0132 - Add new quirk ID for Recon3D.
  ALSA: hda/ca0132 - Fix ZxR Headphone gain control get value.
  ALSA: hda/realtek: Add alc269/alc662 pin-tables for Loongson-3 laptops
  ALSA: docs: fix typo
  ALSA: doc: use correct config variable name
  ASoC: core: Two step component registration
  ASoC: core: Simplify snd_soc_component_initialize declaration
  ASoC: core: Relocate and expose snd_soc_component_initialize
  ASoC: sh: Replace 'select' DMADEVICES 'with depends on'
  ...

Pull KVM updates from Paolo Bonzini:
 "s390:
   - implement diag318

  x86:
   - Report last CPU for debugging
   - Emulate smaller MAXPHYADDR in the guest than in the host
   - .noinstr and tracing fixes from Thomas
   - nested SVM page table switching optimization and fixes

  Generic:
   - Unify shadow MMU cache data structures across architectures"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (127 commits)
  KVM: SVM: Fix sev_pin_memory() error handling
  KVM: LAPIC: Set the TDCR settable bits
  KVM: x86: Specify max TDP level via kvm_configure_mmu()
  KVM: x86/mmu: Rename max_page_level to max_huge_page_level
  KVM: x86: Dynamically calculate TDP level from max level and MAXPHYADDR
  KVM: VXM: Remove temporary WARN on expected vs. actual EPTP level mismatch
  KVM: x86: Pull the PGD's level from the MMU instead of recalculating it
  KVM: VMX: Make vmx_load_mmu_pgd() static
  KVM: x86/mmu: Add separate helper for shadow NPT root page role calc
  KVM: VMX: Drop a duplicate declaration of construct_eptp()
  KVM: nSVM: Correctly set the shadow NPT root level in its MMU role
  KVM: Using macros instead of magic values
  MIPS: KVM: Fix build error caused by 'kvm_run' cleanup
  KVM: nSVM: remove nonsensical EXITINFO1 adjustment on nested NPF
  KVM: x86: Add a capability for GUEST_MAXPHYADDR < HOST_MAXPHYADDR support
  KVM: VMX: optimize #PF injection when MAXPHYADDR does not match
  KVM: VMX: Add guest physical address check in EPT violation and misconfig
  KVM: VMX: introduce vmx_need_pf_intercept
  KVM: x86: update exception bitmap on CPUID changes
  KVM: x86: rename update_bp_intercept to update_exception_bitmap
  ...

This reverts commit 8bb9bf24.

It seems the vmalloc page tables aren't always preallocated in all
situations, because Jason Donenfeld reports an oops with this commit:

  BUG: unable to handle page fault for address: ffffe8ffffd00608
  #PF: supervisor read access in kernel mode
  #PF: error_code(0x0000) - not-present page
  PGD 0 P4D 0
  Oops: 0000 [#1] PREEMPT SMP
  CPU: 2 PID: 22 Comm: kworker/2:0 Not tainted 5.8.0+ #154
  RIP: process_one_work+0x2c/0x2d0
  Code: 41 56 41 55 41 54 55 48 89 f5 53 48 89 fb 48 83 ec 08 48 8b 06 4c 8b 67 40 49 89 c6 45 30 f6 a8 04 b8 00 00 00 00 4c 0f 44 f0 <49> 8b 46 08 44 8b a8 00 01 05
  Call Trace:
   worker_thread+0x4b/0x3b0
   ? rescuer_thread+0x360/0x360
   kthread+0x116/0x140
   ? __kthread_create_worker+0x110/0x110
   ret_from_fork+0x1f/0x30
  CR2: ffffe8ffffd00608

and that page fault address is right in that vmalloc space, and we
clearly don't have a PGD/P4D entry for it.

Looking at the "Code:" line, the actual fault seems to come from the
'pwq->wq' dereference at the top of the process_one_work() function:

        struct pool_workqueue *pwq = get_work_pwq(work);
        struct worker_pool *pool = worker->pool;
        bool cpu_intensive = pwq->wq->flags & WQ_CPU_INTENSIVE;

so 'struct pool_workqueue *pwq' is the allocation that hasn't been
synchronized across CPUs.

Just revert for now, while Joerg figures out the cause.
Reported-and-bisected-by: Jason A. Donenfeld <Jason@zx2c4.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull sched/fifo updates from Ingo Molnar:
 "This adds the sched_set_fifo*() encapsulation APIs to remove static
  priority level knowledge from non-scheduler code.

  The three APIs for non-scheduler code to set SCHED_FIFO are:

   - sched_set_fifo()
   - sched_set_fifo_low()
   - sched_set_normal()

  These are two FIFO priority levels: default (high), and a 'low'
  priority level, plus sched_set_normal() to set the policy back to
  non-SCHED_FIFO.

  Since the changes affect a lot of non-scheduler code, we kept this in
  a separate tree"

* tag 'sched-fifo-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
  sched,tracing: Convert to sched_set_fifo()
  sched: Remove sched_set_*() return value
  sched: Remove sched_setscheduler*() EXPORTs
  sched,psi: Convert to sched_set_fifo_low()
  sched,rcutorture: Convert to sched_set_fifo_low()
  sched,rcuperf: Convert to sched_set_fifo_low()
  sched,locktorture: Convert to sched_set_fifo()
  sched,irq: Convert to sched_set_fifo()
  sched,watchdog: Convert to sched_set_fifo()
  sched,serial: Convert to sched_set_fifo()
  sched,powerclamp: Convert to sched_set_fifo()
  sched,ion: Convert to sched_set_normal()
  sched,powercap: Convert to sched_set_fifo*()
  sched,spi: Convert to sched_set_fifo*()
  sched,mmc: Convert to sched_set_fifo*()
  sched,ivtv: Convert to sched_set_fifo*()
  sched,drm/scheduler: Convert to sched_set_fifo*()
  sched,msm: Convert to sched_set_fifo*()
  sched,psci: Convert to sched_set_fifo*()
  sched,drbd: Convert to sched_set_fifo*()
  ...

Pull integrity updates from Mimi Zohar:
 "The nicest change is the IMA policy rule checking. The other changes
  include allowing the kexec boot cmdline line measure policy rules to
  be defined in terms of the inode associated with the kexec kernel
  image, making the IMA_APPRAISE_BOOTPARAM, which governs the IMA
  appraise mode (log, fix, enforce), a runtime decision based on the
  secure boot mode of the system, and including errno in the audit log"

* tag 'integrity-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
  integrity: remove redundant initialization of variable ret
  ima: move APPRAISE_BOOTPARAM dependency on ARCH_POLICY to runtime
  ima: AppArmor satisfies the audit rule requirements
  ima: Rename internal filter rule functions
  ima: Support additional conditionals in the KEXEC_CMDLINE hook function
  ima: Use the common function to detect LSM conditionals in a rule
  ima: Move comprehensive rule validation checks out of the token parser
  ima: Use correct type for the args_p member of ima_rule_entry.lsm elements
  ima: Shallow copy the args_p member of ima_rule_entry.lsm elements
  ima: Fail rule parsing when appraise_flag=blacklist is unsupportable
  ima: Fail rule parsing when the KEY_CHECK hook is combined with an invalid cond
  ima: Fail rule parsing when the KEXEC_CMDLINE hook is combined with an invalid cond
  ima: Fail rule parsing when buffer hook functions have an invalid action
  ima: Free the entire rule if it fails to parse
  ima: Free the entire rule when deleting a list of rules
  ima: Have the LSM free its audit rule
  IMA: Add audit log for failure conditions
  integrity: Add errno field in audit message

Pull coccinelle updates from Julia Lawall:
 "New semantic patches and semantic patch improvements from Denis
  Efremov"

* 'for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux:
  coccinelle: api: filter out memdup_user definitions
  coccinelle: api: extend memdup_user rule with vmemdup_user()
  coccinelle: api: extend memdup_user transformation with GFP_USER
  coccinelle: api: add kzfree script
  coccinelle: misc: add array_size_dup script to detect missed overflow checks
  coccinelle: api/kstrdup: fix coccinelle position
  coccinelle: api: add device_attr_show script

Merge tag 'livepatching-for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching

Pull livepatching updates from Petr Mladek:
 "Improvements and cleanups of livepatching selftests"

* tag 'livepatching-for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching:
  selftests/livepatch: adopt to newer sysctl error format
  selftests/livepatch: Use "comm" instead of "diff" for dmesg
  selftests/livepatch: add test delimiter to dmesg
  selftests/livepatch: refine dmesg 'taints' in dmesg comparison
  selftests/livepatch: Don't clear dmesg when running tests
  selftests/livepatch: fix mem leaks in test-klp-shadow-vars
  selftests/livepatch: more verification in test-klp-shadow-vars
  selftests/livepatch: rework test-klp-shadow-vars
  selftests/livepatch: simplify test-klp-callbacks busy target tests

Pull smack updates from Casey Schaufler:
 "Minor fixes to Smack for the v5.9 release.

  All were found by automated checkers and have straightforward
  resolution"

* tag 'Smack-for-5.9' of git://github.com/cschaufler/smack-next:
  Smack: prevent underflow in smk_set_cipso()
  Smack: fix another vsscanf out of bounds
  Smack: fix use-after-free in smk_write_relabel_self()

Pull MIPS upates from Thomas Bogendoerfer:

 - improvements for Loongson64

 - extended ingenic support

 - removal of not maintained paravirt system type

 - cleanups and fixes

* tag 'mips_5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (81 commits)
  MIPS: SGI-IP27: always enable NUMA in Kconfig
  MAINTAINERS: Update KVM/MIPS maintainers
  MIPS: Update default config file for Loongson-3
  MIPS: KVM: Add kvm guest support for Loongson-3
  dt-bindings: mips: Document Loongson kvm guest board
  MIPS: handle Loongson-specific GSExc exception
  MIPS: add definitions for Loongson-specific CP0.Diag1 register
  MIPS: only register FTLBPar exception handler for supported models
  MIPS: ingenic: Hardcode mem size for qi,lb60 board
  MIPS: DTS: ingenic/qi,lb60: Add model and memory node
  MIPS: ingenic: Use fw_passed_dtb even if CONFIG_BUILTIN_DTB
  MIPS: head.S: Init fw_passed_dtb to builtin DTB
  of: address: Fix parser address/size cells initialization
  of_address: Guard of_bus_pci_get_flags with CONFIG_PCI
  MIPS: DTS: Fix number of msi vectors for Loongson64G
  MIPS: Loongson64: Add ISA node for LS7A PCH
  MIPS: Loongson64: DTS: Fix ISA and PCI I/O ranges for RS780E PCH
  MIPS: Loongson64: Enlarge IO_SPACE_LIMIT
  MIPS: Loongson64: Process ISA Node in DeviceTree
  of_address: Add bus type match for pci ranges parser
  ...

Pull ARM updates from Russell King:

 - add arch/arm/Kbuild from Masahiro Yamada.

 - simplify act_mm macro, since it contains an open-coded
   get_thread_info.

 - VFP updates for Clang from Stefan Agner.

 - Fix unwinder for Clang from Nathan Huckleberry.

 - Remove unused it8152 PCI host controller, used by the removed cm-x2xx
   platforms from Mike Rapoport.

 - Further explanation of __range_ok().

 - Remove kimage_voffset that isn't used anymore from Marc Zyngier.

 - Drop ancient Thumb-2 workaround for old binutils from Ard Biesheuvel.

 - Documentation cleanup for mach-* from Pete Zaitcev.

* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: 8996/1: Documentation/Clean up the description of mach-<class>
  ARM: 8995/1: drop Thumb-2 workaround for ancient binutils
  ARM: 8994/1: mm: drop kimage_voffset which was only used by KVM
  ARM: uaccess: add further explanation of __range_ok()
  ARM: 8993/1: remove it8152 PCI controller driver
  ARM: 8992/1: Fix unwind_frame for clang-built kernels
  ARM: 8991/1: use VFP assembler mnemonics if available
  ARM: 8990/1: use VFP assembler mnemonics in register load/store macros
  ARM: 8989/1: use .fpu assembler directives instead of assembler arguments
  ARM: 8982/1: mm: Simplify act_mm macro
  ARM: 8981/1: add arch/arm/Kbuild

Pull arch/csky updates from Guo Ren:
 "New features:
   - seccomp-filter
   - err-injection
   - top-down&random mmap-layout
   - irq_work
   - show_ipi
   - context-tracking

  Fixes & Optimizations:
   - kprobe_on_ftrace
   - optimize panic print"

* tag 'csky-for-linus-5.9-rc1' of https://github.com/c-sky/csky-linux:
  csky: Add context tracking support
  csky: Add arch_show_interrupts for IPI interrupts
  csky: Add irq_work support
  csky: Fixup warning by EXPORT_SYMBOL(kmap)
  csky: Set CONFIG_NR_CPU 4 as default
  csky: Use top-down mmap layout
  csky: Optimize the trap processing flow
  csky: Add support for function error injection
  csky: Fixup kprobes handler couldn't change pc
  csky: Fixup duplicated restore sp in RESTORE_REGS_FTRACE
  csky: Add cpu feature register hint for smp
  csky: Add SECCOMP_FILTER supported
  csky: remove unusued thread_saved_pc and *_segments functions/macros

Pull Xtensa updates from Max Filippov:

 - add syscall audit support

 - add seccomp filter support

 - clean up make rules under arch/xtensa/boot

 - fix state management for exclusive access opcodes

 - fix build with PMU enabled

* tag 'xtensa-20200805' of git://github.com/jcmvbkbc/linux-xtensa:
  xtensa: add missing exclusive access state management
  xtensa: fix xtensa_pmu_setup prototype
  xtensa: add boot subdirectories build artifacts to 'targets'
  xtensa: add uImage and xipImage to targets
  xtensa: move vmlinux.bin[.gz] to boot subdirectory
  xtensa: initialize_mmu.h: fix a duplicated word
  selftests/seccomp: add xtensa support
  xtensa: add seccomp support
  xtensa: expose syscall through user_pt_regs
  xtensa: add audit support

Pull hyperv updates from Wei Liu:

 - A patch series from Andrea to improve vmbus code

 - Two clean-up patches from Alexander and Randy

* tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  hyperv: hyperv.h: drop a duplicated word
  tools: hv: change http to https in hv_kvp_daemon.c
  Drivers: hv: vmbus: Remove the lock field from the vmbus_channel struct
  scsi: storvsc: Introduce the per-storvsc_device spinlock
  Drivers: hv: vmbus: Remove unnecessary channel->lock critical sections (sc_list updaters)
  Drivers: hv: vmbus: Use channel_mutex in channel_vp_mapping_show()
  Drivers: hv: vmbus: Remove unnecessary channel->lock critical sections (sc_list readers)
  Drivers: hv: vmbus: Replace cpumask_test_cpu(, cpu_online_mask) with cpu_online()
  Drivers: hv: vmbus: Remove the numa_node field from the vmbus_channel struct
  Drivers: hv: vmbus: Remove the target_vp field from the vmbus_channel struct

During my code inspection I saw there is no implementation of a graceful
shutdown for tcp. This patch will introduce a graceful shutdown for tcp
connections. The shutdown is implemented synchronized as
dlm_lowcomms_stop() is called to end all dlm communication. After shutdown
is done, a lot of flush and closing functionality will be called. However
I don't see a problem with that.

The waitqueue for synchronize the shutdown has a timeout of 10 seconds, if
timeout a force close will be exectued.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>

This patch changes the handling of reconnects. At first we only close
the connection related to the communication failure. If we get a new
connection for an already existing connection we close the existing
connection and take the new one.

This patch improves significantly the stability of tcp connections while
running "tcpkill -9 -i $IFACE port 21064" while generating a lot of dlm
messages e.g. on a gfs2 mount with many files. My test setup shows that a
deadlock is "more" unlikely. Before this patch I wasn't able to get
not a deadlock after 5 seconds. After this patch my observation is
that it's more likely to survive after 5 seconds and more, but still a
deadlock occurs after certain time. My guess is that there are still
"segments" inside the tcp writequeue or retransmit queue which get dropped
when receiving a tcp reset [1]. Hard to reproduce because the right message
need to be inside these queues, which might even be in the 5 first seconds
with this patch.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/net/ipv4/tcp_input.c?h=v5.8-rc6#n4122Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>

This patch doesn't close sockets when there is an invalid dlm message
received. The connection will probably reconnect anyway so. To not
close the connection will reduce the number of possible failtures.
As we don't have a different strategy to react on such scenario
just keep going the connection and ignore the message.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>

This patch adds support to set the skb mark value for the DLM tcp and
sctp socket per peer. The mark value will be offered as per comm value
of configfs. At creation time of the peer socket it will be set as
socket option.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>

This patch adds support to set the skb mark value for the DLM listen
tcp and sctp sockets. The mark value will be offered as cluster
configuration. At creation time of the listen socket it will be set as
socket option.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>

This patch adds a new socket helper function to set the mark value for a
kernel socket.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>