The BIO_FILTERED scheme doesn't work for submitting file I/O from the
filter drіver to the original device, which we'll soon do.  Replace the
scheme with a pointer to the blkfilter in the task_struct so that file
I/O is covered as well.

Signed-off-by: Christoph Hellwig <hch@lst.de>

The original block device is passed to the blkfilter attach callback,
so use that and propagate it through the tracker to the diff_area.  This
means the diff_area can't outlive the tracker (it probably shouldn't
anyway), so take a reference to the tracker in the diff_area.

Signed-off-by: Christoph Hellwig <hch@lst.de>

The orig_clone_bio can also be used for the ST_NEW case in addition
to not having an allocated chunk at all, so do that and simply
chunk_clone_bio to only deal with the ST_STORAGE case.

Rename both functions to make it clear what they do.

Signed-off-by: Christoph Hellwig <hch@lst.de>

Use a switch statement to clearly separate the chunk states and their
actions.

Signed-off-by: Christoph Hellwig <hch@lst.de>

FYI, in the meantime I have a prep patch to remove
the diff_region structure.  I think we don't need it, and just adding
the bdev and sector to the chunk seems to simply things a bit.

Use the normal kernel style of switching on the ioctl command, and
doing a single cast from the integer to a pointer instead of one
in every handler.

"_IOW means userland is writing and kernel is reading. _IOR
means userland is reading and kernel is writing."

Asked-by: Thomas Weißschuh <thomas@t-8ch.de>

Asked-by: Yu Kuai <yukuai1@huaweicloud.com>

…current

Asked-by: Yu Kuai <yukuai1@huaweicloud.com>

Asked-by: Yu Kuai <yukuai1@huaweicloud.com>

Conflicts:
	block/Makefile
	block/genhd.c
	block/ioctl.c
	block/partitions/core.c

Pull xtensa fixes from Max Filippov:

 - fix interaction between unaligned exception handler and load/store
   exception handler

 - fix parsing ISS network interface specification string

 - add comment about etherdev freeing to ISS network driver

* tag 'xtensa-20230716' of https://github.com/jcmvbkbc/linux-xtensa:
  xtensa: fix unaligned and load/store configuration interaction
  xtensa: ISS: fix call to split_if_spec
  xtensa: ISS: add comment about etherdev freeing

…linux/kernel/git/tip/tip

Pull perf fix from Borislav Petkov:

 - Fix a lockdep warning when the event given is the first one, no event
   group exists yet but the code still goes and iterates over event
   siblings

* tag 'perf_urgent_for_v6.5_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86: Fix lockdep warning in for_each_sibling_event() on SPR

…cm/linux/kernel/git/tip/tip

Pull objtool fixes from Borislav Petkov:

 - Mark copy_iovec_from_user() __noclone in order to prevent gcc from
   doing an inter-procedural optimization and confuse objtool

 - Initialize struct elf fully to avoid build failures

* tag 'objtool_urgent_for_v6.5_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  iov_iter: Mark copy_iovec_from_user() noclone
  objtool: initialize all of struct elf

…/linux/kernel/git/tip/tip

Pull scheduler fixes from Borislav Petkov:

 - Remove a cgroup from under a polling process properly

 - Fix the idle sibling selection

* tag 'sched_urgent_for_v6.5_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/psi: use kernfs polling functions for PSI trigger polling
  sched/fair: Use recent_used_cpu to test p->cpus_ptr

…el/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:
 "I'm mostly on vacation but what would vacation be without a few
  critical fixes so people can use their gaming laptops when hiding away
  from the sun (or rain)?

   - Fix a really annoying interrupt storm in the AMD driver affecting
     Asus TUF gaming notebooks

   - Fix device tree parsing in the Renesas driver"

* tag 'pinctrl-v6.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: amd: Unify debounce handling into amd_pinconf_set()
  pinctrl: amd: Drop pull up select configuration
  pinctrl: amd: Use amd_pinconf_set() for all config options
  pinctrl: amd: Only use special debounce behavior for GPIO 0
  pinctrl: renesas: rzg2l: Handle non-unique subnode names
  pinctrl: renesas: rzv2m: Handle non-unique subnode names

Pull smb client fixes from Steve French:

 - Two reconnect fixes: important fix to address inFlight count to leak
   (which can leak credits), and fix for better handling a deleted share

 - DFS fix

 - SMB1 cleanup fix

 - deferred close fix

* tag '6.5-rc1-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix mid leak during reconnection after timeout threshold
  cifs: is_network_name_deleted should return a bool
  smb: client: fix missed ses refcounting
  smb: client: Fix -Wstringop-overflow issues
  cifs: if deferred close is disabled then close files immediately

…l/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:

 - Fix Speculation_Store_Bypass reporting in /proc/self/status on
   Power10

 - Fix HPT with 4K pages since recent changes by implementing pmd_same()

 - Fix 64-bit native_hpte_remove() to be irq-safe

Thanks to Aneesh Kumar K.V, Nageswara R Sastry, and Russell Currey.

* tag 'powerpc-6.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/mm/book3s64/hash/4k: Add pmd_same callback for 4K page size
  powerpc/64e: Fix obtool warnings in exceptions-64e.S
  powerpc/security: Fix Speculation_Store_Bypass reporting on Power10
  powerpc/64s: Fix native_hpte_remove() to be irq-safe

…kernel/git/kees/linux

Pull hardening fixes from Kees Cook:

 - Remove LTO-only suffixes from promoted global function symbols
   (Yonghong Song)

 - Remove unused .text..refcount section from vmlinux.lds.h (Petr Pavlu)

 - Add missing __always_inline to sparc __arch_xchg() (Arnd Bergmann)

 - Claim maintainership of string routines

* tag 'hardening-v6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  sparc: mark __arch_xchg() as __always_inline
  MAINTAINERS: Foolishly claim maintainership of string routines
  kallsyms: strip LTO-only suffixes from promoted global functions
  vmlinux.lds.h: Remove a reference to no longer used sections .text..refcount

…inux/kernel/git/trace/linux-trace

Pull probe fixes from Masami Hiramatsu:

 - fprobe: Add a comment why fprobe will be skipped if another kprobe is
   running in fprobe_kprobe_handler().

 - probe-events: Fix some issues related to fetch-arguments:

    - Fix double counting of the string length for user-string and
      symstr. This will require longer buffer in the array case.

    - Fix not to count error code (minus value) for the total used
      length in array argument. This makes the total used length
      shorter.

    - Fix to update dynamic used data size counter only if fetcharg uses
      the dynamic size data. This may mis-count the used dynamic data
      size and corrupt data.

    - Revert "tracing: Add "(fault)" name injection to kernel probes"
      because that did not work correctly with a bug, and we agreed the
      current '(fault)' output (instead of '"(fault)"' like a string)
      explains what happened more clearly.

    - Fix to record 0-length (means fault access) data_loc data in fetch
      function itself, instead of store_trace_args(). If we record an
      array of string, this will fix to save fault access data on each
      entry of the array correctly.

* tag 'probes-fixes-v6.5-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails
  Revert "tracing: Add "(fault)" name injection to kernel probes"
  tracing/probes: Fix to update dynamic data counter if fetcharg uses it
  tracing/probes: Fix not to count error code to total length
  tracing/probes: Fix to avoid double count of the string length on the array
  fprobes: Add a comment why fprobe_kprobe_handler exits if kprobe is running

…rnel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A couple of fairly minor driver specific fixes here, plus a bunch of
  maintainership and admin updates. Nothing too remarkable"

* tag 'spi-fix-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  mailmap: add entry for Jonas Gorski
  MAINTAINERS: add myself for spi-bcm63xx
  spi: s3c64xx: clear loopback bit after loopback test
  spi: bcm63xx: fix max prepend length
  MAINTAINERS: Add myself as a maintainer for Microchip SPI

…/kernel/git/broonie/regmap

Pull regmap fix from Mark Brown:
 "One fix for an out of bounds access in the interupt code here"

* tag 'regmap-fix-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap-irq: Fix out-of-bounds access when allocating config buffers

…x/kernel/git/joro/iommu

Pull iommu fixes from Joerg Roedel:

 - Fix a regression causing a crash on sysfs access of iommu-group
   specific files

 - Fix signedness bug in SVA code

* tag 'iommu-fixes-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/sva: Fix signedness bug in iommu_sva_alloc_pasid()
  iommu: Fix crash during syfs iommu_groups/N/type

…nux/kernel/git/tip/tip

Pull x86 CFI fixes from Peter Zijlstra:
 "Fix kCFI/FineIBT weaknesses

  The primary bug Alyssa noticed was that with FineIBT enabled function
  prologues have a spurious ENDBR instruction:

    __cfi_foo:
	endbr64
	subl	$hash, %r10d
	jz	1f
	ud2
	nop
    1:
    foo:
	endbr64 <--- *sadface*

  This means that any indirect call that fails to target the __cfi
  symbol and instead targets (the regular old) foo+0, will succeed due
  to that second ENDBR.

  Fixing this led to the discovery of a single indirect call that was
  still doing this: ret_from_fork(). Since that's an assembly stub the
  compiler would not generate the proper kCFI indirect call magic and it
  would not get patched.

  Brian came up with the most comprehensive fix -- convert the thing to
  C with only a very thin asm wrapper. This ensures the kernel thread
  boostrap is a proper kCFI call.

  While discussing all this, Kees noted that kCFI hashes could/should be
  poisoned to seal all functions whose address is never taken, further
  limiting the valid kCFI targets -- much like we already do for IBT.

  So what was a 'simple' observation and fix cascaded into a bunch of
  inter-related CFI infrastructure fixes"

* tag 'x86_urgent_for_6.5_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/cfi: Only define poison_cfi() if CONFIG_X86_KERNEL_IBT=y
  x86/fineibt: Poison ENDBR at +0
  x86: Rewrite ret_from_fork() in C
  x86/32: Remove schedule_tail_wrapper()
  x86/cfi: Extend ENDBR sealing to kCFI
  x86/alternative: Rename apply_ibt_endbr()
  x86/cfi: Extend {JMP,CAKK}_NOSPEC comment

…it/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is a bunch of small driver fixes and a larger rework of zone disk
  handling (which reaches into blk and nvme).

  The aacraid array-bounds fix is now critical since the security people
  turned on -Werror for some build tests, which now fail without it"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: storvsc: Handle SRB status value 0x30
  scsi: block: Improve checks in blk_revalidate_disk_zones()
  scsi: block: virtio_blk: Set zone limits before revalidating zones
  scsi: block: nullblk: Set zone limits before revalidating zones
  scsi: nvme: zns: Set zone limits before revalidating zones
  scsi: sd_zbc: Set zone limits before revalidating zones
  scsi: ufs: core: Add support for qTimestamp attribute
  scsi: aacraid: Avoid -Warray-bounds warning
  scsi: ufs: ufs-mediatek: Add dependency for RESET_CONTROLLER
  scsi: ufs: core: Update contact email for monitor sysfs nodes
  scsi: scsi_debug: Remove dead code
  scsi: qla2xxx: Use vmalloc_array() and vcalloc()
  scsi: fnic: Use vmalloc_array() and vcalloc()
  scsi: qla2xxx: Fix error code in qla2x00_start_sp()
  scsi: qla2xxx: Silence a static checker warning
  scsi: lpfc: Fix a possible data race in lpfc_unregister_fcf_rescan()

Pull block fixes from Jens Axboe:

 - NVMe pull request via Keith:
      - Don't require quirk to use duplicate namespace identifiers
        (Christoph, Sagi)
      - One more BOGUS_NID quirk (Pankaj)
      - IO timeout and error hanlding fixes for PCI (Keith)
      - Enhanced metadata format mask fix (Ankit)
      - Association race condition fix for fibre channel (Michael)
      - Correct debugfs error checks (Minjie)
      - Use PAGE_SECTORS_SHIFT where needed (Damien)
      - Reduce kernel logs for legacy nguid attribute (Keith)
      - Use correct dma direction when unmapping metadata (Ming)

 - Fix for a flush handling regression in this release (Christoph)

 - Fix for batched request time stamping (Chengming)

 - Fix for a regression in the mq-deadline position calculation (Bart)

 - Lockdep fix for blk-crypto (Eric)

 - Fix for a regression in the Amiga partition handling changes
   (Michael)

* tag 'block-6.5-2023-07-14' of git://git.kernel.dk/linux:
  block: queue data commands from the flush state machine at the head
  blk-mq: fix start_time_ns and alloc_time_ns for pre-allocated rq
  nvme-pci: fix DMA direction of unmapping integrity data
  nvme: don't reject probe due to duplicate IDs for single-ported PCIe devices
  block/mq-deadline: Fix a bug in deadline_from_pos()
  nvme: ensure disabling pairs with unquiesce
  nvme-fc: fix race between error recovery and creating association
  nvme-fc: return non-zero status code when fails to create association
  nvme: fix parameter check in nvme_fault_inject_init()
  nvme: warn only once for legacy uuid attribute
  block: remove dead struc request->completion_data field
  nvme: fix the NVME_ID_NS_NVM_STS_MASK definition
  nvmet: use PAGE_SECTORS_SHIFT
  nvme: add BOGUS_NID quirk for Samsung SM953
  blk-crypto: use dynamic lock class for blk_crypto_profile::lock
  block/partition: fix signedness issue for Amiga partitions

Pull io_uring fix from Jens Axboe:
 "Just a single tweak for the wait logic in io_uring"

* tag 'io_uring-6.5-2023-07-14' of git://git.kernel.dk/linux:
  io_uring: Use io_schedule* in cqring wait

…inux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:

 - fix a formatting error in the hwprobe documentation

 - fix a spurious warning in the RISC-V PMU driver

 - fix memory detection on rv32 (problem does not manifest on any known
   system)

 - avoid parsing legacy parsing of I in ACPI ISA strings

* tag 'riscv-for-linus-6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  RISC-V: Don't include Zicsr or Zifencei in I from ACPI
  riscv: mm: fix truncation warning on RV32
  perf: RISC-V: Remove PERF_HES_STOPPED flag checking in riscv_pmu_start()
  Documentation: RISC-V: hwprobe: Fix a formatting error

…it/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix hibernation (after recent changes), frequency QoS and the
  sparc cpufreq driver.

  Specifics:

   - Unbreak the /sys/power/resume interface after recent changes (Azat
     Khuzhin).

   - Allow PM_QOS_DEFAULT_VALUE to be used with frequency QoS (Chungkai
     Yang).

   - Remove __init from cpufreq callbacks in the sparc driver, because
     they may be called after initialization too (Viresh Kumar)"

* tag 'pm-6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: sparc: Don't mark cpufreq callbacks with __init
  PM: QoS: Restore support for default value on frequency QoS
  PM: hibernate: Fix writing maj:min to /sys/power/resume

Merge a PM QoS fix and a hibernation fix for 6.5-rc2.

 - Unbreak the /sys/power/resume interface after recent changes (Azat
   Khuzhin).

 - Allow PM_QOS_DEFAULT_VALUE to be used with frequency QoS (Chungkai
   Yang).

* pm-sleep:
  PM: hibernate: Fix writing maj:min to /sys/power/resume

* pm-qos:
  PM: QoS: Restore support for default value on frequency QoS

When the number of responses with status of STATUS_IO_TIMEOUT
exceeds a specified threshold (NUM_STATUS_IO_TIMEOUT), we reconnect
the connection. But we do not return the mid, or the credits
returned for the mid, or reduce the number of in-flight requests.

This bug could result in the server->in_flight count to go bad,
and also cause a leak in the mids.

This change moves the check to a few lines below where the
response is decrypted, even of the response is read from the
transform header. This way, the code for returning the mids
can be reused.

Also, the cifs_reconnect was reconnecting just the transport
connection before. In case of multi-channel, this may not be
what we want to do after several timeouts. Changed that to
reconnect the session and the tree too.

Also renamed NUM_STATUS_IO_TIMEOUT to a more appropriate name
MAX_STATUS_IO_TIMEOUT.

Fixes: 8e670f7 ("Handle STATUS_IO_TIMEOUT gracefully")
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>