linux.git
18 months agortc: sun6i: remove unnecessary message
Alexandre Belloni [Sun, 27 Aug 2023 22:16:40 +0000 (00:16 +0200)]
rtc: sun6i: remove unnecessary message

The core already print a message once the rtc is successfully registered,
it is not necessary to print an other one.

Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20230827221643.544259-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
18 months agortc: stop warning for invalid alarms when the alarm is disabled
Alexandre Belloni [Sun, 27 Aug 2023 22:15:31 +0000 (00:15 +0200)]
rtc: stop warning for invalid alarms when the alarm is disabled

When the alarm is not enabled, it may never have been set and so we can't
expect it to be valid. This will prevent the apparition of boot messages
like this one:

rtc rtc0: invalid alarm value: 2023-7-8 45:85:85

Link: https://lore.kernel.org/r/20230827221532.543353-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
18 months agoi3c: master: svc: fix probe failure when no i3c device exist
Frank Li [Thu, 31 Aug 2023 14:13:24 +0000 (10:13 -0400)]
i3c: master: svc: fix probe failure when no i3c device exist

I3C masters are expected to support hot-join. This means at initialization
time we might not yet discover any device and this should not be treated
as a fatal error.

During the DAA procedure which happens at probe time, if no device has
joined, all CCC will be NACKed (from a bus perspective). This leads to an
early return with an error code which fails the probe of the master.

Let's avoid this by just telling the core through an I3C_ERROR_M2
return command code that no device was discovered, which is a valid
situation. This way the master will no longer bail out and fail to probe
for a wrong reason.

Cc: stable@vger.kernel.org
Fixes: dd3c52846d59 ("i3c: master: svc: Add Silvaco I3C master driver")
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20230831141324.2841525-1-Frank.Li@nxp.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
18 months agoidr: fix param name in idr_alloc_cyclic() doc
Ariel Marcovitch [Sat, 26 Aug 2023 17:33:17 +0000 (20:33 +0300)]
idr: fix param name in idr_alloc_cyclic() doc

The relevant parameter is 'start' and not 'nextid'

Fixes: 460488c58ca8 ("idr: Remove idr_alloc_ext")
Signed-off-by: Ariel Marcovitch <arielmarcovitch@gmail.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
18 months agoxarray: Document necessary flag in alloc functions
Philipp Stanner [Mon, 21 Aug 2023 08:21:29 +0000 (10:21 +0200)]
xarray: Document necessary flag in alloc functions

Adds a new line to the docstrings of functions wrapping __xa_alloc() and
__xa_alloc_cyclic(), informing about the necessity of flag XA_FLAGS_ALLOC
being set previously.

The documentation so far says that functions wrapping __xa_alloc() and
__xa_alloc_cyclic() are supposed to return either -ENOMEM or -EBUSY in
case of an error. If the xarray has been initialized without the flag
XA_FLAGS_ALLOC, however, they fail with a different, undocumented error
code.

As hinted at in Documentation/core-api/xarray.rst, wrappers around these
functions should only be invoked when the flag has been set. The
functions' documentation should reflect that as well.

Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
18 months agoselftests/ftrace: Correctly enable event in instance-event.tc
Zheng Yejian [Mon, 26 Jun 2023 00:11:44 +0000 (08:11 +0800)]
selftests/ftrace: Correctly enable event in instance-event.tc

Function instance_set() expects to enable event 'sched_switch', so we
should set 1 to its 'enable' file.

Testcase passed after this patch:
  # ./ftracetest test.d/instances/instance-event.tc
  === Ftrace unit tests ===
  [1] Test creation and deletion of trace instances while setting an event
  [PASS]

  # of passed:  1
  # of failed:  0
  # of unresolved:  0
  # of untested:  0
  # of unsupported:  0
  # of xfailed:  0
  # of undefined(test bug):  0

Signed-off-by: Zheng Yejian <zhengyejian1@huawei.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
18 months agodt-bindings: irqchip: convert st,stih407-irq-syscfg to DT schema
Raphael Gallais-Pou [Tue, 5 Sep 2023 07:27:40 +0000 (09:27 +0200)]
dt-bindings: irqchip: convert st,stih407-irq-syscfg to DT schema

Convert deprecated format to DT schema format.

Signed-off-by: Raphael Gallais-Pou <rgallaispou@gmail.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230905072740.23859-1-rgallaispou@gmail.com
Signed-off-by: Rob Herring <robh@kernel.org>
18 months agomedia: dt-bindings: Convert Omnivision OV7251 to DT schema
Rob Herring [Thu, 17 Aug 2023 20:27:13 +0000 (15:27 -0500)]
media: dt-bindings: Convert Omnivision OV7251 to DT schema

Convert the OmniVision OV7251 Image Sensor binding to DT schema format.

vddd-supply was listed as required, but the example and actual user
don't have it. Also, the data brief says it has an internal regulator,
so perhaps it is truly optional.

Add missing common "link-frequencies" which is used and required by the
Linux driver.

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Wolfram Sang <wsa@kernel.org> # for I2C
Link: https://lore.kernel.org/r/20230817202713.2180195-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
18 months agomedia: dt-bindings: Merge OV5695 into OV5693 binding
Rob Herring [Thu, 17 Aug 2023 20:26:46 +0000 (15:26 -0500)]
media: dt-bindings: Merge OV5695 into OV5693 binding

The OV5695 binding is almost the same as the OV5693 binding. The only
difference is 'clock-names' is defined for OV5695. However, the lack of
clock-names is an omission as the Linux OV5693 driver expects the same
'xvclk' clock name.

'link-frequencies' is required by OV5693, but not OV5695, so make that
conditional. Really, this shouldn't vary by device, but we're stuck with
the existing binding use.

The rockchip-isp1 binding example is missing required properties, so it
has to be updated as well.

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230817202647.2179609-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
18 months agoMerge tag 'gfs2-v6.5-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Tue, 5 Sep 2023 20:00:28 +0000 (13:00 -0700)]
Merge tag 'gfs2-v6.5-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2

Pull gfs2 updates from Andreas Gruenbacher:

 - Fix a glock state (non-)transition bug when a dlm request times out
   and is canceled, and we have locking requests that can now be granted
   immediately

 - Various fixes and cleanups in how the logd and quotad daemons are
   woken up and terminated

 - Fix several bugs in the quota data reference counting and shrinking.
   Free quota data objects synchronously in put_super() instead of
   letting call_rcu() run wild

 - Make sure not to deallocate quota data during a withdraw; rather,
   defer quota data deallocation to put_super(). Withdraws can happen in
   contexts in which callers on the stack are holding quota data
   references

 - Many minor quota fixes and cleanups by Bob

 - Update the the mailing list address for gfs2 and dlm. (It's the same
   list for both and we are moving it to gfs2@lists.linux.dev)

 - Various other minor cleanups

* tag 'gfs2-v6.5-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: (51 commits)
  MAINTAINERS: Update dlm mailing list
  MAINTAINERS: Update gfs2 mailing list
  gfs2: change qd_slot_count to qd_slot_ref
  gfs2: check for no eligible quota changes
  gfs2: Remove useless assignment
  gfs2: simplify slot_get
  gfs2: Simplify qd2offset
  gfs2: introduce qd_bh_get_or_undo
  gfs2: Remove quota allocation info from quota file
  gfs2: use constant for array size
  gfs2: Set qd_sync_gen in do_sync
  gfs2: Remove useless err set
  gfs2: Small gfs2_quota_lock cleanup
  gfs2: move qdsb_put and reduce redundancy
  gfs2: improvements to sysfs status
  gfs2: Don't try to sync non-changes
  gfs2: Simplify function need_sync
  gfs2: remove unneeded pg_oflow variable
  gfs2: remove unneeded variable done
  gfs2: pass sdp to gfs2_write_buf_to_page
  ...

18 months agoregulator: tps6594-regulator: Fix random kernel crash
Jerome Neanne [Tue, 5 Sep 2023 14:07:34 +0000 (16:07 +0200)]
regulator: tps6594-regulator: Fix random kernel crash

Random kernel crash detected in TI CICD when regulator driver is added.
This is root caused to irq index increment being done twice causing
irq_data being allocated outside of the range.

- Rework tps6594_request_reg_irqs with correct index increment
- Adjust irq_data kmalloc size to the exact size needed for the device

This has been reported on TI mainline. No public bug report associated.

Reported-by: Udit Kumar <u-kumar1@ti.com>
Fixes: f17ccc5deb4d ("regulator: tps6594-regulator: Add driver for TI TPS6594 regulators")
Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
Link: https://lore.kernel.org/r/20230828-tps6594_random_boot_crash_fix-v1-1-f29cbf9ddb37@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>
18 months agoperf/x86/uncore: Correct the number of CHAs on EMR
Kan Liang [Tue, 5 Sep 2023 13:42:48 +0000 (06:42 -0700)]
perf/x86/uncore: Correct the number of CHAs on EMR

Starting from SPR, the basic uncore PMON information is retrieved from
the discovery table (resides in an MMIO space populated by BIOS). It is
called the discovery method. The existing value of the type->num_boxes
is from the discovery table.

On some SPR variants, there is a firmware bug that makes the value from the
discovery table incorrect. We use the value from the
SPR_MSR_UNC_CBO_CONFIG MSR to replace the one from the discovery table:

   38776cc45eb7 ("perf/x86/uncore: Correct the number of CHAs on SPR")

Unfortunately, the SPR_MSR_UNC_CBO_CONFIG isn't available for the EMR
XCC (Always returns 0), but the above firmware bug doesn't impact the
EMR XCC.

Don't let the value from the MSR replace the existing value from the
discovery table.

Fixes: 38776cc45eb7 ("perf/x86/uncore: Correct the number of CHAs on SPR")
Reported-by: Stephane Eranian <eranian@google.com>
Reported-by: Yunying Sun <yunying.sun@intel.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Yunying Sun <yunying.sun@intel.com>
Link: https://lore.kernel.org/r/20230905134248.496114-1-kan.liang@linux.intel.com
18 months agoMerge tag 'fuse-update-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi...
Linus Torvalds [Tue, 5 Sep 2023 19:45:55 +0000 (12:45 -0700)]
Merge tag 'fuse-update-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse

Pull fuse updates from Miklos Szeredi:

 - Revert non-waiting FLUSH due to a regression

 - Fix a lookup counter leak in readdirplus

 - Add an option to allow shared mmaps in no-cache mode

 - Add btime support and statx intrastructure to the protocol

 - Invalidate positive/negative dentry on failed create/delete

* tag 'fuse-update-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: conditionally fill kstat in fuse_do_statx()
  fuse: invalidate dentry on EEXIST creates or ENOENT deletes
  fuse: cache btime
  fuse: implement statx
  fuse: add ATTR_TIMEOUT macro
  fuse: add STATX request
  fuse: handle empty request_mask in statx
  fuse: write back dirty pages before direct write in direct_io_relax mode
  fuse: add a new fuse init flag to relax restrictions in no cache mode
  fuse: invalidate page cache pages before direct write
  fuse: nlookup missing decrement in fuse_direntplus_link
  Revert "fuse: in fuse_flush only wait if someone wants the return code"

18 months agothermal: core: Drop thermal_zone_device_register()
Rafael J. Wysocki [Wed, 30 Aug 2023 16:16:29 +0000 (18:16 +0200)]
thermal: core: Drop thermal_zone_device_register()

There are no more users of thermal_zone_device_register(), so drop it
from the core.

Note that thermal_zone_device_register_with_trips() may be renamed to
thermal_zone_device_register() in the future, but only after a grace
period allowing all of the possible work in progress that may be using
the latter to adjust.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
18 months agothermal: Use thermal_tripless_zone_device_register()
Rafael J. Wysocki [Wed, 30 Aug 2023 16:14:57 +0000 (18:14 +0200)]
thermal: Use thermal_tripless_zone_device_register()

All of the remaining callers of thermal_zone_device_register()
can use thermal_tripless_zone_device_register(), so make them
do so in order to allow the former to be dropped.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
18 months agothermal: core: Add function for registering tripless thermal zones
Rafael J. Wysocki [Wed, 30 Aug 2023 16:13:35 +0000 (18:13 +0200)]
thermal: core: Add function for registering tripless thermal zones

Multiple callers of thermal_zone_device_register() don't pass any trips
to it and they might use a shortened argument list for that, so add
a special function with fewer arguments for this purpose.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
18 months agothermal: core: Clean up headers of thermal zone registration functions
Rafael J. Wysocki [Wed, 30 Aug 2023 16:11:38 +0000 (18:11 +0200)]
thermal: core: Clean up headers of thermal zone registration functions

For consistency, add a missing thermal_zone_device_register_with_trips()
stub for the CONFIG_THERMAL unset case, specify argument names in all of
the thermal zone registration and unregistration function headers and
make all of them use white space consistently.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
18 months agoMerge tag 'ata-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal...
Linus Torvalds [Tue, 5 Sep 2023 19:37:28 +0000 (12:37 -0700)]
Merge tag 'ata-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata

Pull ata updates from Damien Le Moal:

 - Fix OF include file for ata platform drivers (Rob)

 - Simplify various ahci, sata and pata platform drivers using the
   function devm_platform_ioremap_resource() (Yangtao)

 - Cleanup libata time related argument types (e.g. timeouts values)
   (Sergey)

 - Cleanup libata code around error handling as all ata drivers now
   define a error_handler operation (Hannes and Niklas)

 - Remove functions intended for libsas that are in fact unused (Niklas)

 - Change the remove device callback of platform drivers to a null
   function (Uwe)

 - Simplify the pata_imx driver using devm_clk_get_enabled() (Li)

 - Remove old and uinused remnants of the ide code in arm, parisc,
   powerpc, sparc and m68k architectures and associated drivers
   (pata_buddha, pata_falcon and pata_gayle) (Geert)

 - Add missing MODULE_DESCRIPTION() in the sata_gemini and pata_ftide010
   drivers (me)

 - Several fixes for the pata_ep93xx and pata_falcon drivers (Nikita,
   Michael)

 - Add Elkhart Lake AHCI controller support to the ahci driver (Werner)

 - Disable NCQ trim on Micron 1100 drives (Pawel)

* tag 'ata-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata: (60 commits)
  ata: libata-core: Disable NCQ_TRIM on Micron 1100 drives
  ata: ahci: Add Elkhart Lake AHCI controller
  ata: pata_falcon: add data_swab option to byte-swap disk data
  ata: pata_falcon: fix IO base selection for Q40
  ata: pata_ep93xx: use soc_device_match for UDMA modes
  ata: pata_ep93xx: fix error return code in probe
  ata: sata_gemini: Add missing MODULE_DESCRIPTION
  ata: pata_ftide010: Add missing MODULE_DESCRIPTION
  m68k: Remove <asm/ide.h>
  ata: pata_gayle: Remove #include <asm/ide.h>
  ata: pata_falcon: Remove #include <asm/ide.h>
  ata: pata_buddha: Remove #include <asm/ide.h>
  asm-generic: Remove ide_iops.h
  sparc: Remove <asm/ide.h>
  powerpc: Remove <asm/ide.h>
  parisc: Remove <asm/ide.h>
  ARM: Remove <asm/ide.h>
  ata: pata_imx: Use helper function devm_clk_get_enabled()
  ata: sata_rcar: Convert to platform remove callback returning void
  ata: sata_mv: Convert to platform remove callback returning void
  ...

18 months agoMerge tag 'mailbox-v6.6' of git://git.linaro.org/landing-teams/working/fujitsu/integr...
Linus Torvalds [Tue, 5 Sep 2023 19:31:07 +0000 (12:31 -0700)]
Merge tag 'mailbox-v6.6' of git://git.linaro.org/landing-teams/working/fujitsu/integration

Pull mailbox updates from Jassi Brar:

 - qcom: fix incorrect num_chans counting

 - mhu: Remove redundant dev_err

 - bcm: fix comments

 - common changes:
    - convert to use devm_platform_get_and_ioremap_resource
    - correct DT includes

* tag 'mailbox-v6.6' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
  mailbox: qcom-ipcc: fix incorrect num_chans counting
  mailbox: Explicitly include correct DT includes
  mailbox: ti-msgmgr: Use devm_platform_ioremap_resource_byname()
  mailbox: platform-mhu: Remove redundant dev_err()
  mailbox: bcm-pdc: Fix some kernel-doc comments
  mailbox: mailbox-test: Fix an error check in mbox_test_probe()
  mailbox: tegra-hsp: Convert to devm_platform_ioremap_resource()
  mailbox: rockchip: Use devm_platform_get_and_ioremap_resource()
  mailbox: mailbox-test: Use devm_platform_get_and_ioremap_resource()
  mailbox: bcm-pdc: Use devm_platform_get_and_ioremap_resource()
  mailbox: bcm-ferxrm-mailbox: Use devm_platform_get_and_ioremap_resource()

18 months agoMerge tag 'mm-hotfixes-stable-2023-09-05-11-51' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Tue, 5 Sep 2023 19:22:39 +0000 (12:22 -0700)]
Merge tag 'mm-hotfixes-stable-2023-09-05-11-51' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "Seven hotfixes. Four are cc:stable and the remainder pertain to issues
  which were introduced in the current merge window"

* tag 'mm-hotfixes-stable-2023-09-05-11-51' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  sparc64: add missing initialization of folio in tlb_batch_add()
  mm: memory-failure: use rcu lock instead of tasklist_lock when collect_procs()
  revert "memfd: improve userspace warnings for missing exec-related flags".
  rcu: dump vmalloc memory info safely
  mm/vmalloc: add a safer version of find_vm_area() for debug
  tools/mm: fix undefined reference to pthread_once
  memcontrol: ensure memcg acquired by id is properly set up

18 months agokunit: Fix possible memory leak in kunit_filter_suites()
Jinjie Ruan [Sun, 3 Sep 2023 07:10:28 +0000 (15:10 +0800)]
kunit: Fix possible memory leak in kunit_filter_suites()

If both filter_glob and filters are not NULL, and kunit_parse_glob_filter()
succeed, but kcalloc parsed_filters fails, the suite_glob and test_glob of
parsed kzalloc in kunit_parse_glob_filter() will be leaked.

As Rae suggested, assign -ENOMEM to *err to correctly free copy and goto
free_parsed_glob to free the suite/test_glob of parsed.

Fixes: 1c9fd080dffe ("kunit: fix uninitialized variables bug in attributes filtering")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Suggested-by: Rae Moar <rmoar@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
18 months agokunit: Fix possible null-ptr-deref in kunit_parse_glob_filter()
Jinjie Ruan [Sun, 3 Sep 2023 07:10:27 +0000 (15:10 +0800)]
kunit: Fix possible null-ptr-deref in kunit_parse_glob_filter()

Inject fault while probing kunit-example-test.ko, if kzalloc fails
in kunit_parse_glob_filter(), strcpy() or strncpy() to NULL will
cause below null-ptr-deref bug. So check NULL for kzalloc() and
return int instead of void for kunit_parse_glob_filter().

 Unable to handle kernel paging request at virtual address dfff800000000000
 KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
 Mem abort info:
   ESR = 0x0000000096000005
   EC = 0x25: DABT (current EL), IL = 32 bits
   SET = 0, FnV = 0
   EA = 0, S1PTW = 0
   FSC = 0x05: level 1 translation fault
 Data abort info:
   ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000
   CM = 0, WnR = 0, TnD = 0, TagAccess = 0
   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
 [dfff800000000000] address between user and kernel address ranges
 Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP
 Modules linked in: kunit_example_test cfg80211 rfkill 8021q garp mrp stp llc ipv6 [last unloaded: kunit_example_test]
 CPU: 4 PID: 6047 Comm: modprobe Tainted: G        W        N 6.5.0-next-20230829+ #141
 Hardware name: linux,dummy-virt (DT)
 pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : strncpy+0x58/0xc0
 lr : kunit_filter_suites+0x15c/0xa84
 sp : ffff800082a17420
 x29: ffff800082a17420 x28: 0000000000000000 x27: 0000000000000004
 x26: 0000000000000000 x25: ffffa847e40a5320 x24: 0000000000000001
 x23: 0000000000000000 x22: 0000000000000001 x21: dfff800000000000
 x20: 000000000000002a x19: 0000000000000000 x18: 00000000750b3b54
 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000
 x14: 0000000000000000 x13: 34393178302f3039 x12: ffff7508fcea4ec1
 x11: 1ffff508fcea4ec0 x10: ffff7508fcea4ec0 x9 : dfff800000000000
 x8 : ffff6051b1a7f86a x7 : ffff800082a17270 x6 : 0000000000000002
 x5 : 0000000000000098 x4 : ffff028d9817b250 x3 : 0000000000000000
 x2 : 0000000000000000 x1 : ffffa847e40a5320 x0 : 0000000000000000
 Call trace:
  strncpy+0x58/0xc0
  kunit_filter_suites+0x15c/0xa84
  kunit_module_notify+0x1b0/0x3ac
  blocking_notifier_call_chain+0xc4/0x128
  do_init_module+0x250/0x594
  load_module+0x37b0/0x44b4
  init_module_from_file+0xd4/0x128
  idempotent_init_module+0x2c8/0x524
  __arm64_sys_finit_module+0xac/0x100
  invoke_syscall+0x6c/0x258
  el0_svc_common.constprop.0+0x160/0x22c
  do_el0_svc+0x44/0x5c
  el0_svc+0x38/0x78
  el0t_64_sync_handler+0x13c/0x158
  el0t_64_sync+0x190/0x194
 Code: 5400028a d343fe63 12000a62 39400034 (38f56863)
 ---[ end trace 0000000000000000 ]---
 Kernel panic - not syncing: Oops: Fatal exception
 SMP: stopping secondary CPUs
 Kernel Offset: 0x284761400000 from 0xffff800080000000
 PHYS_OFFSET: 0xfffffd7380000000
 CPU features: 0x88000203,3c020000,1000421b
 Memory Limit: none
 Rebooting in 1 seconds..

Fixes: a127b154a8f2 ("kunit: tool: allow filtering test cases via glob")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Rae Moar <rmoar@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
18 months agokunit: Fix the wrong err path and add goto labels in kunit_filter_suites()
Jinjie Ruan [Sun, 3 Sep 2023 07:10:26 +0000 (15:10 +0800)]
kunit: Fix the wrong err path and add goto labels in kunit_filter_suites()

Take the last kfree(parsed_filters) and add it to be the first. Take
the first kfree(copy) and add it to be the last. The Best practice is to
return these errors reversely.

And as David suggested, add several labels which target only the things
which actually have been allocated so far.

Fixes: 529534e8cba3 ("kunit: Add ability to filter attributes")
Fixes: abbf73816b6f ("kunit: fix possible memory leak in kunit_filter_suites()")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Rae Moar <rmoar@google.com>
Suggested-by: David Gow <davidgow@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
18 months agokunit: Fix wild-memory-access bug in kunit_free_suite_set()
Jinjie Ruan [Sun, 3 Sep 2023 07:10:25 +0000 (15:10 +0800)]
kunit: Fix wild-memory-access bug in kunit_free_suite_set()

Inject fault while probing kunit-example-test.ko, if kstrdup()
fails in mod_sysfs_setup() in load_module(), the mod->state will
switch from MODULE_STATE_COMING to MODULE_STATE_GOING instead of
from MODULE_STATE_LIVE to MODULE_STATE_GOING, so only
kunit_module_exit() will be called without kunit_module_init(), and
the mod->kunit_suites is no set correctly and the free in
kunit_free_suite_set() will cause below wild-memory-access bug.

The mod->state state machine when load_module() succeeds:

MODULE_STATE_UNFORMED ---> MODULE_STATE_COMING ---> MODULE_STATE_LIVE
 ^ |
 | | delete_module
 +---------------- MODULE_STATE_GOING <---------+

The mod->state state machine when load_module() fails at
mod_sysfs_setup():

MODULE_STATE_UNFORMED ---> MODULE_STATE_COMING ---> MODULE_STATE_GOING
^ |
| |
+-----------------------------------------------+

Call kunit_module_init() at MODULE_STATE_COMING state to fix the issue
because MODULE_STATE_LIVE is transformed from it.

 Unable to handle kernel paging request at virtual address ffffff341e942a88
 KASAN: maybe wild-memory-access in range [0x0003f9a0f4a15440-0x0003f9a0f4a15447]
 Mem abort info:
   ESR = 0x0000000096000004
   EC = 0x25: DABT (current EL), IL = 32 bits
   SET = 0, FnV = 0
   EA = 0, S1PTW = 0
   FSC = 0x04: level 0 translation fault
 Data abort info:
   ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000
   CM = 0, WnR = 0, TnD = 0, TagAccess = 0
   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
 swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000441ea000
 [ffffff341e942a88] pgd=0000000000000000, p4d=0000000000000000
 Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP
 Modules linked in: kunit_example_test(-) cfg80211 rfkill 8021q garp mrp stp llc ipv6 [last unloaded: kunit_example_test]
 CPU: 3 PID: 2035 Comm: modprobe Tainted: G        W        N 6.5.0-next-20230828+ #136
 Hardware name: linux,dummy-virt (DT)
 pstate: a0000005 (NzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : kfree+0x2c/0x70
 lr : kunit_free_suite_set+0xcc/0x13c
 sp : ffff8000829b75b0
 x29: ffff8000829b75b0 x28: ffff8000829b7b90 x27: 0000000000000000
 x26: dfff800000000000 x25: ffffcd07c82a7280 x24: ffffcd07a50ab300
 x23: ffffcd07a50ab2e8 x22: 1ffff00010536ec0 x21: dfff800000000000
 x20: ffffcd07a50ab2f0 x19: ffffcd07a50ab2f0 x18: 0000000000000000
 x17: 0000000000000000 x16: 0000000000000000 x15: ffffcd07c24b6764
 x14: ffffcd07c24b63c0 x13: ffffcd07c4cebb94 x12: ffff700010536ec7
 x11: 1ffff00010536ec6 x10: ffff700010536ec6 x9 : dfff800000000000
 x8 : 00008fffefac913a x7 : 0000000041b58ab3 x6 : 0000000000000000
 x5 : 1ffff00010536ec5 x4 : ffff8000829b7628 x3 : dfff800000000000
 x2 : ffffff341e942a80 x1 : ffffcd07a50aa000 x0 : fffffc0000000000
 Call trace:
  kfree+0x2c/0x70
  kunit_free_suite_set+0xcc/0x13c
  kunit_module_notify+0xd8/0x360
  blocking_notifier_call_chain+0xc4/0x128
  load_module+0x382c/0x44a4
  init_module_from_file+0xd4/0x128
  idempotent_init_module+0x2c8/0x524
  __arm64_sys_finit_module+0xac/0x100
  invoke_syscall+0x6c/0x258
  el0_svc_common.constprop.0+0x160/0x22c
  do_el0_svc+0x44/0x5c
  el0_svc+0x38/0x78
  el0t_64_sync_handler+0x13c/0x158
  el0t_64_sync+0x190/0x194
 Code: aa0003e1 b25657e0 d34cfc42 8b021802 (f9400440)
 ---[ end trace 0000000000000000 ]---
 Kernel panic - not syncing: Oops: Fatal exception
 SMP: stopping secondary CPUs
 Kernel Offset: 0x4d0742200000 from 0xffff800080000000
 PHYS_OFFSET: 0xffffee43c0000000
 CPU features: 0x88000203,3c020000,1000421b
 Memory Limit: none
 Rebooting in 1 seconds..

Fixes: 3d6e44623841 ("kunit: unify module and builtin suite definitions")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Rae Moar <rmoar@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
18 months agoMerge tag 'tpmdd-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko...
Linus Torvalds [Tue, 5 Sep 2023 18:15:59 +0000 (11:15 -0700)]
Merge tag 'tpmdd-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd

Pull more tpm updates from Jarkko Sakkinen:
 "Two more bug fixes for tpm_crb, categorically disabling rng for AMD
  CPU's in the tpm_crb driver, discarding the earlier probing approach"

* tag 'tpmdd-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  tpm: Enable hwrng only for Pluton on AMD CPUs
  tpm_crb: Fix an error handling path in crb_acpi_add()

18 months agos390/vmem: do not silently ignore mapping limit
Alexander Gordeev [Fri, 1 Sep 2023 06:11:14 +0000 (08:11 +0200)]
s390/vmem: do not silently ignore mapping limit

The only interface that allows drivers establishing
liner mappings is vmem_add_mapping(). It does check
a requested range against allowed limits and a call
to modify_pagetable() with an invalid mapping range
is impossible.

Hence, an attempt to map an address range outside of
the identity mapping or vmemmap array could only be
kernel bug.

Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
18 months agos390/zcrypt: utilize dev_set_name() ability to use a formatted string
Andy Shevchenko [Thu, 31 Aug 2023 11:00:00 +0000 (14:00 +0300)]
s390/zcrypt: utilize dev_set_name() ability to use a formatted string

With the dev_set_name() prototype it's not obvious that it takes
a formatted string as a parameter. Use its facility instead of
duplicating the same with strncpy()/snprintf() calls.

With this, also prevent return error code to be shadowed.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230831110000.24279-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
18 months agos390/zcrypt: don't leak memory if dev_set_name() fails
Andy Shevchenko [Thu, 31 Aug 2023 10:59:59 +0000 (13:59 +0300)]
s390/zcrypt: don't leak memory if dev_set_name() fails

When dev_set_name() fails, zcdn_create() doesn't free the newly
allocated resources. Do it.

Fixes: 00fab2350e6b ("s390/zcrypt: multiple zcrypt device nodes support")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230831110000.24279-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
18 months agos390/mm: fix MAX_DMA_ADDRESS physical vs virtual confusion
Alexander Gordeev [Fri, 1 Sep 2023 13:12:13 +0000 (15:12 +0200)]
s390/mm: fix MAX_DMA_ADDRESS physical vs virtual confusion

MAX_DMA_ADDRESS is defined and treated as a physical address,
whereas it should be virtual.

Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
18 months agosparc64: add missing initialization of folio in tlb_batch_add()
Mike Rapoport (IBM) [Mon, 4 Sep 2023 17:37:59 +0000 (20:37 +0300)]
sparc64: add missing initialization of folio in tlb_batch_add()

Commit 1a10a44dfc1d ("sparc64: implement the new page table range API")
missed initialization of folio variable in tlb_batch_add() which causes
boot tests to crash.

Add missing initialization.

Link: https://lkml.kernel.org/r/20230904174350.GF3223@kernel.org
Fixes: 1a10a44dfc1d ("sparc64: implement the new page table range API")
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
18 months agomm: memory-failure: use rcu lock instead of tasklist_lock when collect_procs()
Tong Tiangen [Mon, 28 Aug 2023 02:25:27 +0000 (10:25 +0800)]
mm: memory-failure: use rcu lock instead of tasklist_lock when collect_procs()

We found a softlock issue in our test, analyzed the logs, and found that
the relevant CPU call trace as follows:

CPU0:
  _do_fork
    -> copy_process()
      -> write_lock_irq(&tasklist_lock)  //Disable irq,waiting for
        //tasklist_lock

CPU1:
  wp_page_copy()
    ->pte_offset_map_lock()
      -> spin_lock(&page->ptl);        //Hold page->ptl
    -> ptep_clear_flush()
      -> flush_tlb_others() ...
        -> smp_call_function_many()
          -> arch_send_call_function_ipi_mask()
            -> csd_lock_wait()         //Waiting for other CPUs respond
                               //IPI

CPU2:
  collect_procs_anon()
    -> read_lock(&tasklist_lock)       //Hold tasklist_lock
      ->for_each_process(tsk)
        -> page_mapped_in_vma()
          -> page_vma_mapped_walk()
    -> map_pte()
              ->spin_lock(&page->ptl)  //Waiting for page->ptl

We can see that CPU1 waiting for CPU0 respond IPI,CPU0 waiting for CPU2
unlock tasklist_lock, CPU2 waiting for CPU1 unlock page->ptl. As a result,
softlockup is triggered.

For collect_procs_anon(), what we're doing is task list iteration, during
the iteration, with the help of call_rcu(), the task_struct object is freed
only after one or more grace periods elapse. the logic as follows:

release_task()
  -> __exit_signal()
    -> __unhash_process()
      -> list_del_rcu()

  -> put_task_struct_rcu_user()
    -> call_rcu(&task->rcu, delayed_put_task_struct)

delayed_put_task_struct()
  -> put_task_struct()
  -> if (refcount_sub_and_test())
      __put_task_struct()
          -> free_task()

Therefore, under the protection of the rcu lock, we can safely use
get_task_struct() to ensure a safe reference to task_struct during the
iteration.

By removing the use of tasklist_lock in task list iteration, we can break
the softlock chain above.

The same logic can also be applied to:
 - collect_procs_file()
 - collect_procs_fsdax()
 - collect_procs_ksm()

Link: https://lkml.kernel.org/r/20230828022527.241693-1-tongtiangen@huawei.com
Signed-off-by: Tong Tiangen <tongtiangen@huawei.com>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
18 months agorevert "memfd: improve userspace warnings for missing exec-related flags".
Andrew Morton [Sat, 2 Sep 2023 22:59:31 +0000 (15:59 -0700)]
revert "memfd: improve userspace warnings for missing exec-related flags".

This warning is telling userspace developers to pass MFD_EXEC and
MFD_NOEXEC_SEAL to memfd_create().  Commit 434ed3350f57 ("memfd: improve
userspace warnings for missing exec-related flags") made the warning more
frequent and visible in the hope that this would accelerate the fixing of
errant userspace.

But the overall effect is to generate far too much dmesg noise.

Fixes: 434ed3350f57 ("memfd: improve userspace warnings for missing exec-related flags")
Reported-by: Damian Tometzki <dtometzki@fedoraproject.org>
Closes: https://lkml.kernel.org/r/ZPFzCSIgZ4QuHsSC@fedora.fritz.box
Cc: Aleksa Sarai <cyphar@cyphar.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Daniel Verkamp <dverkamp@chromium.org>
Cc: Jeff Xu <jeffxu@google.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
18 months agoof: overlay: Fix of_overlay_fdt_apply prototype when !CONFIG_OF_OVERLAY
Pavel Pisa [Mon, 4 Sep 2023 10:00:02 +0000 (12:00 +0200)]
of: overlay: Fix of_overlay_fdt_apply prototype when !CONFIG_OF_OVERLAY

The of_overlay_fdt_apply has been changed but when CONFIG_OF_OVERLAY
support is not configured then old stub prototype is declared
by of.h header.

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Fixes: 47284862bfc7 ("of: overlay: Extend of_overlay_fdt_apply() to specify the target node")
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Link: https://lore.kernel.org/r/20230904100002.7913-1-pisa@cmp.felk.cvut.cz
Signed-off-by: Rob Herring <robh@kernel.org>
18 months agoMerge tag 'kbuild-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy...
Linus Torvalds [Tue, 5 Sep 2023 18:01:47 +0000 (11:01 -0700)]
Merge tag 'kbuild-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - Enable -Wenum-conversion warning option

 - Refactor the rpm-pkg target

 - Fix scripts/setlocalversion to consider annotated tags for rt-kernel

 - Add a jump key feature for the search menu of 'make nconfig'

 - Support Qt6 for 'make xconfig'

 - Enable -Wformat-overflow, -Wformat-truncation, -Wstringop-overflow,
   and -Wrestrict warnings for W=1 builds

 - Replace <asm/export.h> with <linux/export.h> for alpha, ia64, and
   sparc

 - Support DEB_BUILD_OPTIONS=parallel=N for the debian source package

 - Refactor scripts/Makefile.modinst and fix some modules_sign issues

 - Add a new Kconfig env variable to warn symbols that are not defined
   anywhere

 - Show help messages of config fragments in 'make help'

* tag 'kbuild-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (62 commits)
  kconfig: fix possible buffer overflow
  kbuild: Show marked Kconfig fragments in "help"
  kconfig: add warn-unknown-symbols sanity check
  kbuild: dummy-tools: make MPROFILE_KERNEL checks work on BE
  Documentation/llvm: refresh docs
  modpost: Skip .llvm.call-graph-profile section check
  kbuild: support modules_sign for external modules as well
  kbuild: support 'make modules_sign' with CONFIG_MODULE_SIG_ALL=n
  kbuild: move more module installation code to scripts/Makefile.modinst
  kbuild: reduce the number of mkdir calls during modules_install
  kbuild: remove $(MODLIB)/source symlink
  kbuild: move depmod rule to scripts/Makefile.modinst
  kbuild: add modules_sign to no-{compiler,sync-config}-targets
  kbuild: do not run depmod for 'make modules_sign'
  kbuild: deb-pkg: support DEB_BUILD_OPTIONS=parallel=N in debian/rules
  alpha: remove <asm/export.h>
  alpha: replace #include <asm/export.h> with #include <linux/export.h>
  ia64: remove <asm/export.h>
  ia64: replace #include <asm/export.h> with #include <linux/export.h>
  sparc: remove <asm/export.h>
  ...

18 months agoMerge tag 'mm-stable-2023-09-04-14-00' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Tue, 5 Sep 2023 17:56:27 +0000 (10:56 -0700)]
Merge tag 'mm-stable-2023-09-04-14-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull more MM updates from Andrew Morton:

 - Stefan Roesch has added ksm statistics to /proc/pid/smaps

 - Also a number of singleton patches, mainly cleanups and leftovers

* tag 'mm-stable-2023-09-04-14-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm/kmemleak: move up cond_resched() call in page scanning loop
  mm: page_alloc: remove stale CMA guard code
  MAINTAINERS: add rmap.h to mm entry
  rmap: remove anon_vma_link() nommu stub
  proc/ksm: add ksm stats to /proc/pid/smaps
  mm/hwpoison: rename hwp_walk* to hwpoison_walk*
  mm: memory-failure: add PageOffline() check

18 months agoigb: Change IGB_MIN to allow set rx/tx value between 64 and 80
Olga Zaborska [Tue, 25 Jul 2023 08:10:58 +0000 (10:10 +0200)]
igb: Change IGB_MIN to allow set rx/tx value between 64 and 80

Change the minimum value of RX/TX descriptors to 64 to enable setting the rx/tx
value between 64 and 80. All igb devices can use as low as 64 descriptors.
This change will unify igb with other drivers.
Based on commit 7b1be1987c1e ("e1000e: lower ring minimum size to 64")

Fixes: 9d5c824399de ("igb: PCI-Express 82575 Gigabit Ethernet driver")
Signed-off-by: Olga Zaborska <olga.zaborska@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
18 months agoigbvf: Change IGBVF_MIN to allow set rx/tx value between 64 and 80
Olga Zaborska [Tue, 25 Jul 2023 08:10:57 +0000 (10:10 +0200)]
igbvf: Change IGBVF_MIN to allow set rx/tx value between 64 and 80

Change the minimum value of RX/TX descriptors to 64 to enable setting the rx/tx
value between 64 and 80. All igbvf devices can use as low as 64 descriptors.
This change will unify igbvf with other drivers.
Based on commit 7b1be1987c1e ("e1000e: lower ring minimum size to 64")

Fixes: d4e0fe01a38a ("igbvf: add new driver to support 82576 virtual functions")
Signed-off-by: Olga Zaborska <olga.zaborska@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
18 months agoigc: Change IGC_MIN to allow set rx/tx value between 64 and 80
Olga Zaborska [Tue, 25 Jul 2023 08:10:56 +0000 (10:10 +0200)]
igc: Change IGC_MIN to allow set rx/tx value between 64 and 80

Change the minimum value of RX/TX descriptors to 64 to enable setting the rx/tx
value between 64 and 80. All igc devices can use as low as 64 descriptors.
This change will unify igc with other drivers.
Based on commit 7b1be1987c1e ("e1000e: lower ring minimum size to 64")

Fixes: 0507ef8a0372 ("igc: Add transmit and receive fastpath and interrupt handlers")
Signed-off-by: Olga Zaborska <olga.zaborska@intel.com>
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
18 months agoPCI: Fix CONFIG_PCI_DYNAMIC_OF_NODES kconfig dependencies
Lizhi Hou [Thu, 31 Aug 2023 18:19:07 +0000 (11:19 -0700)]
PCI: Fix CONFIG_PCI_DYNAMIC_OF_NODES kconfig dependencies

Generating interrupt-map property depends on of_irq_parse_raw() which
is enabled by CONFIG_OF_IRQ. Change CONFIG_PCI_DYNAMIC_OF_NODES
dependency from CONFIG_OF to CONFIG_OF_IRQ.

Closes: https://lore.kernel.org/linux-devicetree/2187619d-55bc-41bb-bbb4-6059399db997@roeck-us.net/
Fixes: 407d1a51921e ("PCI: Create device tree node for bridge")
Link: https://lore.kernel.org/r/1693505947-29786-1-git-send-email-lizhi.hou@amd.com
Reported-by: Guenter Roeck <groeck7@gmail.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
18 months agoMerge tag 'microblaze-v6.6' of git://git.monstr.eu/linux-2.6-microblaze
Linus Torvalds [Tue, 5 Sep 2023 17:15:22 +0000 (10:15 -0700)]
Merge tag 'microblaze-v6.6' of git://git.monstr.eu/linux-2.6-microblaze

Pull microblaze updates from Michal Simek:

 - Cleanup DT headers

 - Remove unused zalloc_maybe_bootmem()

 - Make virt_to_pfn() a static inline

* tag 'microblaze-v6.6' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Make virt_to_pfn() a static inline
  microblaze: Remove zalloc_maybe_bootmem()
  microblaze: Explicitly include correct DT includes

18 months agorcu: dump vmalloc memory info safely
Zqiang [Mon, 4 Sep 2023 18:08:05 +0000 (18:08 +0000)]
rcu: dump vmalloc memory info safely

Currently, for double invoke call_rcu(), will dump rcu_head objects memory
info, if the objects is not allocated from the slab allocator, the
vmalloc_dump_obj() will be invoke and the vmap_area_lock spinlock need to
be held, since the call_rcu() can be invoked in interrupt context,
therefore, there is a possibility of spinlock deadlock scenarios.

And in Preempt-RT kernel, the rcutorture test also trigger the following
lockdep warning:

BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 1, name: swapper/0
preempt_count: 1, expected: 0
RCU nest depth: 1, expected: 1
3 locks held by swapper/0/1:
 #0: ffffffffb534ee80 (fullstop_mutex){+.+.}-{4:4}, at: torture_init_begin+0x24/0xa0
 #1: ffffffffb5307940 (rcu_read_lock){....}-{1:3}, at: rcu_torture_init+0x1ec7/0x2370
 #2: ffffffffb536af40 (vmap_area_lock){+.+.}-{3:3}, at: find_vmap_area+0x1f/0x70
irq event stamp: 565512
hardirqs last  enabled at (565511): [<ffffffffb379b138>] __call_rcu_common+0x218/0x940
hardirqs last disabled at (565512): [<ffffffffb5804262>] rcu_torture_init+0x20b2/0x2370
softirqs last  enabled at (399112): [<ffffffffb36b2586>] __local_bh_enable_ip+0x126/0x170
softirqs last disabled at (399106): [<ffffffffb43fef59>] inet_register_protosw+0x9/0x1d0
Preemption disabled at:
[<ffffffffb58040c3>] rcu_torture_init+0x1f13/0x2370
CPU: 0 PID: 1 Comm: swapper/0 Tainted: G        W          6.5.0-rc4-rt2-yocto-preempt-rt+ #15
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.2-0-gea1b7a073390-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x68/0xb0
 dump_stack+0x14/0x20
 __might_resched+0x1aa/0x280
 ? __pfx_rcu_torture_err_cb+0x10/0x10
 rt_spin_lock+0x53/0x130
 ? find_vmap_area+0x1f/0x70
 find_vmap_area+0x1f/0x70
 vmalloc_dump_obj+0x20/0x60
 mem_dump_obj+0x22/0x90
 __call_rcu_common+0x5bf/0x940
 ? debug_smp_processor_id+0x1b/0x30
 call_rcu_hurry+0x14/0x20
 rcu_torture_init+0x1f82/0x2370
 ? __pfx_rcu_torture_leak_cb+0x10/0x10
 ? __pfx_rcu_torture_leak_cb+0x10/0x10
 ? __pfx_rcu_torture_init+0x10/0x10
 do_one_initcall+0x6c/0x300
 ? debug_smp_processor_id+0x1b/0x30
 kernel_init_freeable+0x2b9/0x540
 ? __pfx_kernel_init+0x10/0x10
 kernel_init+0x1f/0x150
 ret_from_fork+0x40/0x50
 ? __pfx_kernel_init+0x10/0x10
 ret_from_fork_asm+0x1b/0x30
 </TASK>

The previous patch fixes this by using the deadlock-safe best-effort
version of find_vm_area.  However, in case of failure print the fact that
the pointer was a vmalloc pointer so that we print at least something.

Link: https://lkml.kernel.org/r/20230904180806.1002832-2-joel@joelfernandes.org
Fixes: 98f180837a89 ("mm: Make mem_dump_obj() handle vmalloc() memory")
Signed-off-by: Zqiang <qiang.zhang1211@gmail.com>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Reported-by: Zhen Lei <thunder.leizhen@huaweicloud.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Paul E. McKenney <paulmck@kernel.org>
Cc: Uladzislau Rezki (Sony) <urezki@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
18 months agomm/vmalloc: add a safer version of find_vm_area() for debug
Joel Fernandes (Google) [Mon, 4 Sep 2023 18:08:04 +0000 (18:08 +0000)]
mm/vmalloc: add a safer version of find_vm_area() for debug

It is unsafe to dump vmalloc area information when trying to do so from
some contexts.  Add a safer trylock version of the same function to do a
best-effort VMA finding and use it from vmalloc_dump_obj().

[applied test robot feedback on unused function fix.]
[applied Uladzislau feedback on locking.]
Link: https://lkml.kernel.org/r/20230904180806.1002832-1-joel@joelfernandes.org
Fixes: 98f180837a89 ("mm: Make mem_dump_obj() handle vmalloc() memory")
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Reported-by: Zhen Lei <thunder.leizhen@huaweicloud.com>
Cc: Paul E. McKenney <paulmck@kernel.org>
Cc: Zqiang <qiang.zhang1211@gmail.com>
Cc: <stable@vger.kernel.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
18 months agotools/mm: fix undefined reference to pthread_once
Xie XiuQi [Thu, 31 Aug 2023 03:42:05 +0000 (11:42 +0800)]
tools/mm: fix undefined reference to pthread_once

Commit 97d5f2e9ee12 ("tools api fs: More thread safety for global
filesystem variables") introduces pthread_once, so the libpthread
should be added at link time, or we'll meet the following compile
error when 'make -C tools/mm':

  gcc -Wall -Wextra -I../lib/ -o page-types page-types.c ../lib/api/libapi.a
  ~/linux/tools/lib/api/fs/fs.c:146: undefined reference to `pthread_once'
  ~/linux/tools/lib/api/fs/fs.c:147: undefined reference to `pthread_once'
  ~/linux/tools/lib/api/fs/fs.c:148: undefined reference to `pthread_once'
  ~/linux/tools/lib/api/fs/fs.c:149: undefined reference to `pthread_once'
  ~/linux/tools/lib/api/fs/fs.c:150: undefined reference to `pthread_once'
  /usr/bin/ld: ../lib/api/libapi.a(libapi-in.o):~/linux/tools/lib/api/fs/fs.c:151:
  more undefined references to `pthread_once' follow
  collect2: error: ld returned 1 exit status
  make: *** [Makefile:22: page-types] Error 1

Link: https://lkml.kernel.org/r/20230831034205.2376653-1-xiexiuqi@huaweicloud.com
Fixes: 97d5f2e9ee12 ("tools api fs: More thread safety for global filesystem variables")
Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
18 months agomemcontrol: ensure memcg acquired by id is properly set up
Johannes Weiner [Wed, 23 Aug 2023 22:54:30 +0000 (15:54 -0700)]
memcontrol: ensure memcg acquired by id is properly set up

In the eviction recency check, we attempt to retrieve the memcg to which
the folio belonged when it was evicted, by the memcg id stored in the
shadow entry.  However, there is a chance that the retrieved memcg is not
the original memcg that has been killed, but a new one which happens to
have the same id.

This is a somewhat unfortunate, but acceptable and rare inaccuracy in the
heuristics.  However, if we retrieve this new memcg between its allocation
and when it is properly attached to the memcg hierarchy, we could run into
the following NULL pointer exception during the memcg hierarchy traversal
done in mem_cgroup_get_nr_swap_pages():

[ 155757.793456] BUG: kernel NULL pointer dereference, address: 00000000000000c0
[ 155757.807568] #PF: supervisor read access in kernel mode
[ 155757.818024] #PF: error_code(0x0000) - not-present page
[ 155757.828482] PGD 401f77067 P4D 401f77067 PUD 401f76067 PMD 0
[ 155757.839985] Oops: 0000 [#1] SMP
[ 155757.887870] RIP: 0010:mem_cgroup_get_nr_swap_pages+0x3d/0xb0
[ 155757.899377] Code: 29 19 4a 02 48 39 f9 74 63 48 8b 97 c0 00 00 00 48 8b b7 58 02 00 00 48 2b b7 c0 01 00 00 48 39 f0 48 0f 4d c6 48 39 d1 74 42 <48> 8b b2 c0 00 00 00 48 8b ba 58 02 00 00 48 2b ba c0 01 00 00 48
[ 155757.937125] RSP: 0018:ffffc9002ecdfbc8 EFLAGS: 00010286
[ 155757.947755] RAX: 00000000003a3b1c RBX: 000007ffffffffff RCX: ffff888280183000
[ 155757.962202] RDX: 0000000000000000 RSI: 0007ffffffffffff RDI: ffff888bbc2d1000
[ 155757.976648] RBP: 0000000000000001 R08: 000000000000000b R09: ffff888ad9cedba0
[ 155757.991094] R10: ffffea0039c07900 R11: 0000000000000010 R12: ffff888b23a7b000
[ 155758.005540] R13: 0000000000000000 R14: ffff888bbc2d1000 R15: 000007ffffc71354
[ 155758.019991] FS:  00007f6234c68640(0000) GS:ffff88903f9c0000(0000) knlGS:0000000000000000
[ 155758.036356] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 155758.048023] CR2: 00000000000000c0 CR3: 0000000a83eb8004 CR4: 00000000007706e0
[ 155758.062473] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 155758.076924] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 155758.091376] PKRU: 55555554
[ 155758.096957] Call Trace:
[ 155758.102016]  <TASK>
[ 155758.106502]  ? __die+0x78/0xc0
[ 155758.112793]  ? page_fault_oops+0x286/0x380
[ 155758.121175]  ? exc_page_fault+0x5d/0x110
[ 155758.129209]  ? asm_exc_page_fault+0x22/0x30
[ 155758.137763]  ? mem_cgroup_get_nr_swap_pages+0x3d/0xb0
[ 155758.148060]  workingset_test_recent+0xda/0x1b0
[ 155758.157133]  workingset_refault+0xca/0x1e0
[ 155758.165508]  filemap_add_folio+0x4d/0x70
[ 155758.173538]  page_cache_ra_unbounded+0xed/0x190
[ 155758.182919]  page_cache_sync_ra+0xd6/0x1e0
[ 155758.191738]  filemap_read+0x68d/0xdf0
[ 155758.199495]  ? mlx5e_napi_poll+0x123/0x940
[ 155758.207981]  ? __napi_schedule+0x55/0x90
[ 155758.216095]  __x64_sys_pread64+0x1d6/0x2c0
[ 155758.224601]  do_syscall_64+0x3d/0x80
[ 155758.232058]  entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 155758.242473] RIP: 0033:0x7f62c29153b5
[ 155758.249938] Code: e8 48 89 75 f0 89 7d f8 48 89 4d e0 e8 b4 e6 f7 ff 41 89 c0 4c 8b 55 e0 48 8b 55 e8 48 8b 75 f0 8b 7d f8 b8 11 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 33 44 89 c7 48 89 45 f8 e8 e7 e6 f7 ff 48 8b
[ 155758.288005] RSP: 002b:00007f6234c5ffd0 EFLAGS: 00000293 ORIG_RAX: 0000000000000011
[ 155758.303474] RAX: ffffffffffffffda RBX: 00007f628c4e70c0 RCX: 00007f62c29153b5
[ 155758.318075] RDX: 000000000003c041 RSI: 00007f61d2986000 RDI: 0000000000000076
[ 155758.332678] RBP: 00007f6234c5fff0 R08: 0000000000000000 R09: 0000000064d5230c
[ 155758.347452] R10: 000000000027d450 R11: 0000000000000293 R12: 000000000003c041
[ 155758.362044] R13: 00007f61d2986000 R14: 00007f629e11b060 R15: 000000000027d450
[ 155758.376661]  </TASK>

This patch fixes the issue by moving the memcg's id publication from the
alloc stage to online stage, ensuring that any memcg acquired via id must
be connected to the memcg tree.

Link: https://lkml.kernel.org/r/20230823225430.166925-1-nphamcs@gmail.com
Fixes: f78dfc7b77d5 ("workingset: fix confusion around eviction vs refault container")
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Co-developed-by: Nhat Pham <nphamcs@gmail.com>
Signed-off-by: Nhat Pham <nphamcs@gmail.com>
Acked-by: Shakeel Butt <shakeelb@google.com>
Cc: Yosry Ahmed <yosryahmed@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
18 months agoMerge tag 'for-linus' of https://github.com/openrisc/linux
Linus Torvalds [Tue, 5 Sep 2023 17:09:31 +0000 (10:09 -0700)]
Merge tag 'for-linus' of https://github.com/openrisc/linux

Pull OpenRISC updates from Stafford Horne:

 - Fixes from me to cleanup all compiler warnings reported under
   arch/openrisc

 - One cleanup from Linus Walleij to convert pfn macros to static
   inlines

* tag 'for-linus' of https://github.com/openrisc/linux:
  openrisc: Remove kernel-doc marker from ioremap comment
  openrisc: Remove unused tlb_init function
  openriac: Remove unused nommu_dump_state function
  openrisc: Include cpu.h and switch_to.h for prototypes
  openrisc: Add prototype for die to bug.h
  openrisc: Add prototype for show_registers to processor.h
  openrisc: Declare do_signal function as static
  openrisc: Add missing prototypes for assembly called fnctions
  openrisc: Make pfn accessors statics inlines

18 months agokconfig: fix possible buffer overflow
Konstantin Meskhidze [Tue, 5 Sep 2023 09:59:14 +0000 (17:59 +0800)]
kconfig: fix possible buffer overflow

Buffer 'new_argv' is accessed without bound check after accessing with
bound check via 'new_argc' index.

Fixes: e298f3b49def ("kconfig: add built-in function support")
Co-developed-by: Ivanov Mikhail <ivanov.mikhail1@huawei-partners.com>
Signed-off-by: Konstantin Meskhidze <konstantin.meskhidze@huawei.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
18 months agoocteontx2-af: Fix truncation of smq in CN10K NIX AQ enqueue mbox handler
Geetha sowjanya [Tue, 5 Sep 2023 06:48:16 +0000 (12:18 +0530)]
octeontx2-af: Fix truncation of smq in CN10K NIX AQ enqueue mbox handler

The smq value used in the CN10K NIX AQ instruction enqueue mailbox
handler was truncated to 9-bit value from 10-bit value because of
typecasting the CN10K mbox request structure to the CN9K structure.
Though this hasn't caused any problems when programming the NIX SQ
context to the HW because the context structure is the same size.
However, this causes a problem when accessing the structure parameters.
This patch reads the right smq value for each platform.

Fixes: 30077d210c83 ("octeontx2-af: cn10k: Update NIX/NPA context structure")
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agoigmp: limit igmpv3_newpack() packet size to IP_MAX_MTU
Eric Dumazet [Tue, 5 Sep 2023 04:23:38 +0000 (04:23 +0000)]
igmp: limit igmpv3_newpack() packet size to IP_MAX_MTU

This is a follow up of commit 915d975b2ffa ("net: deal with integer
overflows in kmalloc_reserve()") based on David Laight feedback.

Back in 2010, I failed to realize malicious users could set dev->mtu
to arbitrary values. This mtu has been since limited to 0x7fffffff but
regardless of how big dev->mtu is, it makes no sense for igmpv3_newpack()
to allocate more than IP_MAX_MTU and risk various skb fields overflows.

Fixes: 57e1ab6eaddc ("igmp: refine skb allocations")
Link: https://lore.kernel.org/netdev/d273628df80f45428e739274ab9ecb72@AcuMS.aculab.com/
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: David Laight <David.Laight@ACULAB.COM>
Cc: Kyle Zeng <zengyhkyle@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agoASoC: Intel: avs: Provide support for fallback topology
Amadeusz Sławiński [Tue, 5 Sep 2023 09:31:47 +0000 (11:31 +0200)]
ASoC: Intel: avs: Provide support for fallback topology

HDA and HDMI devices are simple enough that in case of user not having
topology tailored to their device, they can use fallback topology.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20230905093147.1960675-1-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
18 months agoMAINTAINERS: Update dlm mailing list
Andrew Price [Thu, 31 Aug 2023 09:57:49 +0000 (10:57 +0100)]
MAINTAINERS: Update dlm mailing list

The new gfs2@ list will also be used for dlm development.

Signed-off-by: Andrew Price <anprice@redhat.com>
Acked-by: David Teigland <teigland@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agoMAINTAINERS: Update gfs2 mailing list
Andrew Price [Thu, 31 Aug 2023 09:57:48 +0000 (10:57 +0100)]
MAINTAINERS: Update gfs2 mailing list

Signed-off-by: Andrew Price <anprice@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agomailbox: qcom-ipcc: fix incorrect num_chans counting
Jonathan Marek [Wed, 2 Aug 2023 13:52:22 +0000 (09:52 -0400)]
mailbox: qcom-ipcc: fix incorrect num_chans counting

Breaking out early when a match is found leads to an incorrect num_chans
value when more than one ipcc mailbox channel is used by the same device.

Fixes: e9d50e4b4d04 ("mailbox: qcom-ipcc: Dynamic alloc for channel arrangement")
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
18 months agomailbox: Explicitly include correct DT includes
Rob Herring [Fri, 14 Jul 2023 17:47:01 +0000 (11:47 -0600)]
mailbox: Explicitly include correct DT includes

The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
18 months agomailbox: ti-msgmgr: Use devm_platform_ioremap_resource_byname()
Li Zetao [Tue, 1 Aug 2023 08:51:07 +0000 (16:51 +0800)]
mailbox: ti-msgmgr: Use devm_platform_ioremap_resource_byname()

Convert platform_get_resource_byname() + devm_ioremap_resource() to a
single call to devm_platform_ioremap_resource_byname(), as this is
exactly what this function does.

Signed-off-by: Li Zetao <lizetao1@huawei.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
18 months agomailbox: platform-mhu: Remove redundant dev_err()
Ruan Jinjie [Thu, 27 Jul 2023 10:41:37 +0000 (10:41 +0000)]
mailbox: platform-mhu: Remove redundant dev_err()

There is no need to call the dev_err() function directly to print a custom
message when handling an error from platform_get_irq() function as
it is going to display an appropriate error message in case of a failure.

Signed-off-by: Ruan Jinjie <ruanjinjie@huawei.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
18 months agomailbox: bcm-pdc: Fix some kernel-doc comments
Yang Li [Fri, 11 Aug 2023 01:34:48 +0000 (09:34 +0800)]
mailbox: bcm-pdc: Fix some kernel-doc comments

Fix some kernel-doc comments to silence the warnings:

drivers/mailbox/bcm-pdc-mailbox.c:707: warning: Function parameter or member 'pdcs' not described in 'pdc_tx_list_sg_add'
drivers/mailbox/bcm-pdc-mailbox.c:707: warning: Excess function parameter 'spu_idx' description in 'pdc_tx_list_sg_add'
drivers/mailbox/bcm-pdc-mailbox.c:875: warning: Function parameter or member 'pdcs' not described in 'pdc_rx_list_sg_add'
drivers/mailbox/bcm-pdc-mailbox.c:875: warning: Excess function parameter 'spu_idx' description in 'pdc_rx_list_sg_add'
drivers/mailbox/bcm-pdc-mailbox.c:966: warning: Function parameter or member 't' not described in 'pdc_tasklet_cb'
drivers/mailbox/bcm-pdc-mailbox.c:966: warning: Excess function parameter 'data' description in 'pdc_tasklet_cb'

Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
18 months agomailbox: mailbox-test: Fix an error check in mbox_test_probe()
Minjie Du [Thu, 13 Jul 2023 10:18:08 +0000 (18:18 +0800)]
mailbox: mailbox-test: Fix an error check in mbox_test_probe()

mbox_test_request_channel() function returns NULL or
error value embedded in the pointer (PTR_ERR).
Evaluate the return value using IS_ERR_OR_NULL.

Signed-off-by: Minjie Du <duminjie@vivo.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
18 months agomailbox: tegra-hsp: Convert to devm_platform_ioremap_resource()
Yangtao Li [Tue, 4 Jul 2023 13:37:26 +0000 (21:37 +0800)]
mailbox: tegra-hsp: Convert to devm_platform_ioremap_resource()

Use devm_platform_ioremap_resource() to simplify code.

Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
18 months agomailbox: rockchip: Use devm_platform_get_and_ioremap_resource()
Yangtao Li [Tue, 4 Jul 2023 13:37:25 +0000 (21:37 +0800)]
mailbox: rockchip: Use devm_platform_get_and_ioremap_resource()

Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.

Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
18 months agomailbox: mailbox-test: Use devm_platform_get_and_ioremap_resource()
Yangtao Li [Tue, 4 Jul 2023 13:37:24 +0000 (21:37 +0800)]
mailbox: mailbox-test: Use devm_platform_get_and_ioremap_resource()

Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.

Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
18 months agomailbox: bcm-pdc: Use devm_platform_get_and_ioremap_resource()
Yangtao Li [Tue, 4 Jul 2023 13:37:23 +0000 (21:37 +0800)]
mailbox: bcm-pdc: Use devm_platform_get_and_ioremap_resource()

Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.

Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
18 months agomailbox: bcm-ferxrm-mailbox: Use devm_platform_get_and_ioremap_resource()
Yangtao Li [Tue, 4 Jul 2023 13:37:22 +0000 (21:37 +0800)]
mailbox: bcm-ferxrm-mailbox: Use devm_platform_get_and_ioremap_resource()

Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.

Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
18 months agoperf: CXL: fix mismatched number of counters mask
Jeongtae Park [Tue, 5 Sep 2023 12:33:09 +0000 (21:33 +0900)]
perf: CXL: fix mismatched number of counters mask

The number of Count Units field is described as 6 bits long
in the CXL 3.0 specification. However, its mask value was
only declared as 5 bits long.

Signed-off-by: Jeongtae Park <jtp.park@samsung.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20230905123309.775854-1-jtp.park@samsung.com
Signed-off-by: Will Deacon <will@kernel.org>
18 months agoio_uring: add a sysctl to disable io_uring system-wide
Matteo Rizzo [Mon, 21 Aug 2023 21:15:52 +0000 (17:15 -0400)]
io_uring: add a sysctl to disable io_uring system-wide

Introduce a new sysctl (io_uring_disabled) which can be either 0, 1, or
2. When 0 (the default), all processes are allowed to create io_uring
instances, which is the current behavior.  When 1, io_uring creation is
disabled (io_uring_setup() will fail with -EPERM) for unprivileged
processes not in the kernel.io_uring_group group.  When 2, calls to
io_uring_setup() fail with -EPERM regardless of privilege.

Signed-off-by: Matteo Rizzo <matteorizzo@google.com>
[JEM: modified to add io_uring_group]
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Link: https://lore.kernel.org/r/x49y1i42j1z.fsf@segfault.boston.devel.redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
18 months agogfs2: change qd_slot_count to qd_slot_ref
Bob Peterson [Fri, 16 Jun 2023 18:22:04 +0000 (13:22 -0500)]
gfs2: change qd_slot_count to qd_slot_ref

Variable qd_slot_count is a reference count, not a count of slots. This
patch renames it to qd_slot_ref to make that more clear.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: check for no eligible quota changes
Bob Peterson [Thu, 8 Jun 2023 17:30:16 +0000 (12:30 -0500)]
gfs2: check for no eligible quota changes

Before this patch, function gfs2_quota_sync would always allocate a page
full of memory and increment its quota sync generation number. This
happened even when the system was completely idle or if no blocks were
allocated or quota changes made. This patch adds function qd_changed
to determine if any changes have been made that qualify for a
quota sync. If not, it avoids the memory allocation and bumping the
generation number, along with all the additional work it would do.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Remove useless assignment
Bob Peterson [Wed, 28 Jun 2023 13:50:46 +0000 (08:50 -0500)]
gfs2: Remove useless assignment

This assignment is unnecessary because if error was not already 0, it
would have branched to an error label already.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: simplify slot_get
Bob Peterson [Wed, 28 Jun 2023 12:40:30 +0000 (07:40 -0500)]
gfs2: simplify slot_get

Simplify function slot_get and get rid of the goto that jumps into the
middle of an else branch.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Simplify qd2offset
Bob Peterson [Mon, 26 Jun 2023 15:55:52 +0000 (10:55 -0500)]
gfs2: Simplify qd2offset

This is a minor cleanup of function qd2offset.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: introduce qd_bh_get_or_undo
Bob Peterson [Fri, 23 Jun 2023 13:07:55 +0000 (08:07 -0500)]
gfs2: introduce qd_bh_get_or_undo

This patch is an attempt to force some consistency in quota sync
processing. Two functions (qd_fish and gfs2_quota_unlock) called
qd_check_sync, after which they both called bh_get, and if that failed,
they took the same steps to undo the actions of qd_check_sync.

This patch introduces a new function, qd_bh_get_or_undo, which performs
the same steps, reducing code redundancy.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Remove quota allocation info from quota file
Bob Peterson [Thu, 22 Jun 2023 17:36:59 +0000 (12:36 -0500)]
gfs2: Remove quota allocation info from quota file

Function do_sync called gfs2_qa_get and put for quota allocation data.
But the inode in question is the system master quota file, which is
never subject to quotas. Therefore, a qa structure should be unnecessary
and if anything accesses it, it's probably a bug.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: use constant for array size
Bob Peterson [Thu, 22 Jun 2023 16:37:37 +0000 (11:37 -0500)]
gfs2: use constant for array size

Function gfs2_quota_unlock declared an array of 4 qd elements. We have a
constant for that, we should be using it.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Set qd_sync_gen in do_sync
Bob Peterson [Thu, 22 Jun 2023 16:04:45 +0000 (11:04 -0500)]
gfs2: Set qd_sync_gen in do_sync

Func do_sync was called in two places: gfs2_quota_unlock and
gfs2_quota_sync. In gfs2_quota_sync it updated qd_sync_gen to the latest
superblock sync gen, if do_sync was successful. In gfs2_quota_unlock it
didn't update the value. That can only lead to extra work, for example,
if the value is synced by gfs2_quota_unlock but still has the old value.

This patch moves the setting of qd_sync_gen inside do_sync so we are
guaranteed consistency.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Remove useless err set
Bob Peterson [Wed, 21 Jun 2023 17:31:15 +0000 (12:31 -0500)]
gfs2: Remove useless err set

Function gfs2_adjust_quota set variable err, then set it again to a
different value. This patch removes the redundant set.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Small gfs2_quota_lock cleanup
Bob Peterson [Tue, 20 Jun 2023 18:49:57 +0000 (13:49 -0500)]
gfs2: Small gfs2_quota_lock cleanup

No need to set error = 0 since it's set further down.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: move qdsb_put and reduce redundancy
Bob Peterson [Fri, 16 Jun 2023 17:36:51 +0000 (12:36 -0500)]
gfs2: move qdsb_put and reduce redundancy

This patch looks more invasive than it is. It simply moves function
qdsb_put before qd_unlock, then changes qd_unlock to call it rather than
open coding it. Again, this reduces redundancy.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: improvements to sysfs status
Bob Peterson [Fri, 16 Jun 2023 11:59:02 +0000 (06:59 -0500)]
gfs2: improvements to sysfs status

This patch adds some new fields to the gfs2 status file in sysfs to aid
in debugging.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Don't try to sync non-changes
Bob Peterson [Wed, 30 Aug 2023 12:57:47 +0000 (07:57 -0500)]
gfs2: Don't try to sync non-changes

Function need_sync is supposed to determine if a qd element needs to be
synced. If the "change" (qd_change) is zero, it does not need to be
synced because there's literally no change in the value. Before this
patch need_sync returned false if value < 0. That should be <= 0.
This patch changes the check to <=.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Simplify function need_sync
Bob Peterson [Wed, 31 May 2023 17:31:52 +0000 (12:31 -0500)]
gfs2: Simplify function need_sync

This patch simplifies function need_sync by eliminating a variable in
favor of just returning the appropriate value as soon as we know it.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: remove unneeded pg_oflow variable
Bob Peterson [Wed, 31 May 2023 16:41:16 +0000 (11:41 -0500)]
gfs2: remove unneeded pg_oflow variable

Function gfs2_write_disk_quota checks if its write overflows onto
another page, and if so, does a second write. Before this patch it kept
two variables for this, but only one is needed. This patch simplifies
it by eliminating pg_oflow.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: remove unneeded variable done
Bob Peterson [Wed, 31 May 2023 15:47:17 +0000 (10:47 -0500)]
gfs2: remove unneeded variable done

Function gfs2_write_buf_to_page uses variable done to exit its loop, but
it's unnecessary if we just code an infinite loop and exit when we need.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: pass sdp to gfs2_write_buf_to_page
Bob Peterson [Wed, 31 May 2023 15:39:42 +0000 (10:39 -0500)]
gfs2: pass sdp to gfs2_write_buf_to_page

This patch passes the superblock pointer to gfs2_write_buf_to_page so it
becomes more apparent it's dealing with the system quota file.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: pass sdp in to gfs2_write_disk_quota
Bob Peterson [Wed, 31 May 2023 15:31:33 +0000 (10:31 -0500)]
gfs2: pass sdp in to gfs2_write_disk_quota

Like the previous patch, we now pass the superblock pointer to function
gfs2_write_disk_quota. This makes the code more understandable, since it
only operates on the quota inode.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Pass sdp to gfs2_adjust_quota
Bob Peterson [Wed, 31 May 2023 15:25:29 +0000 (10:25 -0500)]
gfs2: Pass sdp to gfs2_adjust_quota

Before this change function gfs2_adjust_quota's first parameter was an
gfs2_inode pointer. But it always pointed to the quota inode. Here we
switch that to pass the superblock pointer, sdp, so it is easier to read
the code and understand that it's only dealing with the quota inode.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: remove dead code for quota writes
Bob Peterson [Wed, 31 May 2023 15:08:49 +0000 (10:08 -0500)]
gfs2: remove dead code for quota writes

Since patch 845802b112ee function gfs2_write_buf_to_page checks if the
target inode is jdata or ordered. This function only operates on the
system quota file, which is always jdata, so the check for jdata is
useless. This patch removes it.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Introduce new quota=quiet mount option
Bob Peterson [Wed, 28 Jun 2023 18:52:42 +0000 (13:52 -0500)]
gfs2: Introduce new quota=quiet mount option

This patch adds a new mount option quota=quiet which is the same as
quota=on but it suppresses gfs2 quota error messages.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Add device name to gfs2_logd and gfs2_quotad
Andreas Gruenbacher [Mon, 28 Aug 2023 16:05:44 +0000 (18:05 +0200)]
gfs2: Add device name to gfs2_logd and gfs2_quotad

Add the device name to the names of the gfs2_logd and gfs2_quotad kernel
threads to allow for easier identification.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Rename "freeze_workqueue" to "gfs2_freeze"
Andreas Gruenbacher [Mon, 28 Aug 2023 16:03:30 +0000 (18:03 +0200)]
gfs2: Rename "freeze_workqueue" to "gfs2_freeze"

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Rename "gfs_recovery" workqueue to "gfs2_recovery"
Andreas Gruenbacher [Mon, 28 Aug 2023 16:02:22 +0000 (18:02 +0200)]
gfs2: Rename "gfs_recovery" workqueue to "gfs2_recovery"

Rename the "gfs_recovery" workqueue to "gfs2_recovery", and
gfs_recovery_wq to gfs2_recovery_wq.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Fix withdraw race
Andreas Gruenbacher [Wed, 30 Aug 2023 20:09:36 +0000 (22:09 +0200)]
gfs2: Fix withdraw race

Function gfs2_withdraw() tries to synchronize concurrent callers by
atomically setting the SDF_WITHDRAWN flag in the first caller, setting
the SDF_WITHDRAW_IN_PROG flag to indicate that a withdraw is in
progress, performing the actual withdraw, and clearing the
SDF_WITHDRAW_IN_PROG flag when done.  All other callers wait for the
SDF_WITHDRAW_IN_PROG flag to be cleared before returning.

This leaves a small window in which callers can find the SDF_WITHDRAWN
flag set before the SDF_WITHDRAW_IN_PROG flag has been set, causing them
to return prematurely, before the withdraw has been completed.

Fix that by setting the SDF_WITHDRAWN and SDF_WITHDRAW_IN_PROG flags
atomically.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Sanitize kthread stopping
Andreas Gruenbacher [Fri, 25 Aug 2023 09:18:38 +0000 (11:18 +0200)]
gfs2: Sanitize kthread stopping

Immediately stop the logd and quotad kernel threads when a filesystem
withdraw is detected: those threads aren't doing anything useful after a
withdraw.  (Depends on the extra logd and quotad task struct references
held since commit 7a109f383fa3 ("gfs2: Fix asynchronous thread
destruction").)

In addition, check for kthread_should_stop() in the wait condition in
gfs2_quotad() to stop immediately when kthread_stop() is called.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Switch to wait_event in gfs2_quotad
Andreas Gruenbacher [Fri, 25 Aug 2023 09:06:20 +0000 (11:06 +0200)]
gfs2: Switch to wait_event in gfs2_quotad

In gfs2_quotad(), switch from an open-coded wait loop to
wait_event_interruptible_timeout().

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Fix asynchronous thread destruction
Andreas Gruenbacher [Mon, 28 Aug 2023 15:14:32 +0000 (17:14 +0200)]
gfs2: Fix asynchronous thread destruction

The kernel threads are currently stopped and destroyed synchronously by
gfs2_make_fs_ro() and gfs2_put_super(), and asynchronously by
signal_our_withdraw(), with no synchronization, so the synchronous and
asynchronous contexts can race with each other.

First, when creating the kernel threads, take an extra task struct
reference so that the task struct won't go away immediately when they
terminate.  This allows those kthreads to terminate immediately when
they're done rather than hanging around as zombies until they are reaped
by kthread_stop().  When kthread_stop() is called on a terminated
kthread, it will return immediately.

Second, in signal_our_withdraw(), once the SDF_JOURNAL_LIVE flag has
been cleared, wake up the logd and quotad wait queues instead of
stopping the logd and quotad kthreads.  The kthreads are then expected
to terminate automatically within short time, but if they cannot, they
will not block the withdraw.

For example, if a user process and one of the kthread decide to withdraw
at the same time, only one of them will perform the actual withdraw and
the other will wait for it to be done.  If the kthread ends up being the
one to wait, the withdrawing user process won't be able to stop it.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Stop using gfs2_make_fs_ro for withdraw
Andreas Gruenbacher [Mon, 28 Aug 2023 14:39:20 +0000 (16:39 +0200)]
gfs2: Stop using gfs2_make_fs_ro for withdraw

[   81.372851][ T5532] CPU: 1 PID: 5532 Comm: syz-executor.0 Not tainted 6.2.0-rc1-syzkaller-dirty #0
[   81.382080][ T5532] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
[   81.392343][ T5532] Call Trace:
[   81.395654][ T5532]  <TASK>
[   81.398603][ T5532]  dump_stack_lvl+0x1b1/0x290
[   81.418421][ T5532]  gfs2_assert_warn_i+0x19a/0x2e0
[   81.423480][ T5532]  gfs2_quota_cleanup+0x4c6/0x6b0
[   81.428611][ T5532]  gfs2_make_fs_ro+0x517/0x610
[   81.457802][ T5532]  gfs2_withdraw+0x609/0x1540
[   81.481452][ T5532]  gfs2_inode_refresh+0xb2d/0xf60
[   81.506658][ T5532]  gfs2_instantiate+0x15e/0x220
[   81.511504][ T5532]  gfs2_glock_wait+0x1d9/0x2a0
[   81.516352][ T5532]  do_sync+0x485/0xc80
[   81.554943][ T5532]  gfs2_quota_sync+0x3da/0x8b0
[   81.559738][ T5532]  gfs2_sync_fs+0x49/0xb0
[   81.564063][ T5532]  sync_filesystem+0xe8/0x220
[   81.568740][ T5532]  generic_shutdown_super+0x6b/0x310
[   81.574112][ T5532]  kill_block_super+0x79/0xd0
[   81.578779][ T5532]  deactivate_locked_super+0xa7/0xf0
[   81.584064][ T5532]  cleanup_mnt+0x494/0x520
[   81.593753][ T5532]  task_work_run+0x243/0x300
[   81.608837][ T5532]  exit_to_user_mode_loop+0x124/0x150
[   81.614232][ T5532]  exit_to_user_mode_prepare+0xb2/0x140
[   81.619820][ T5532]  syscall_exit_to_user_mode+0x26/0x60
[   81.625287][ T5532]  do_syscall_64+0x49/0xb0
[   81.629710][ T5532]  entry_SYSCALL_64_after_hwframe+0x63/0xcd

In this backtrace, gfs2_quota_sync() takes quota data references and
then calls do_sync().  Function do_sync() encounters filesystem
corruption and withdraws the filesystem, which (among other things) calls
gfs2_quota_cleanup().  Function gfs2_quota_cleanup() wrongly assumes
that nobody is holding any quota data references anymore, and destroys
all quota data objects.  When gfs2_quota_sync() then resumes and
dereferences the quota data objects it is holding, those objects are no
longer there.

Function gfs2_quota_cleanup() deals with resource deallocation and can
easily be delayed until gfs2_put_super() in the case of a filesystem
withdraw.  In fact, most of the other work gfs2_make_fs_ro() does is
unnecessary during a withdraw as well, so change signal_our_withdraw()
to skip gfs2_make_fs_ro() and perform the necessary steps directly
instead.

Thanks to Edward Adam Davis <eadavis@sina.com> for the initial patches.

Link: https://lore.kernel.org/all/0000000000002b5e2405f14e860f@google.com
Reported-by: syzbot+3f6a670108ce43356017@syzkaller.appspotmail.com
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Free quota data objects synchronously
Andreas Gruenbacher [Wed, 23 Aug 2023 15:15:47 +0000 (17:15 +0200)]
gfs2: Free quota data objects synchronously

In gfs2_quota_cleanup(), wait for the quota data objects to be freed
before returning.  Otherwise, there is no guarantee that the quota data
objects will be gone when their kmem cache is destroyed.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Fix initial quota data refcount
Andreas Gruenbacher [Thu, 24 Aug 2023 12:52:29 +0000 (14:52 +0200)]
gfs2: Fix initial quota data refcount

Fix the refcount of quota data objects created directly by
gfs2_quota_init(): those are placed into the in-memory quota "database"
for eventual syncing to the main quota file, but they are not actively
held and should thus have an initial refcount of 0.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: No more quota complaints after withdraw
Andreas Gruenbacher [Thu, 24 Aug 2023 13:08:55 +0000 (15:08 +0200)]
gfs2: No more quota complaints after withdraw

Once a filesystem is withdrawn, don't complain about quota changes
that can't be synced to the main quota file anymore.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Factor out duplicate quota data disposal code
Andreas Gruenbacher [Tue, 22 Aug 2023 12:18:21 +0000 (14:18 +0200)]
gfs2: Factor out duplicate quota data disposal code

Rename gfs2_qd_dispose() to gfs2_qd_dispose_list().  Move some code
duplicated in gfs2_qd_dispose_list() and gfs2_quota_cleanup() into a
new gfs2_qd_dispose() function.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Use gfs2_qd_dispose in gfs2_quota_cleanup
Andreas Gruenbacher [Wed, 23 Aug 2023 19:38:04 +0000 (21:38 +0200)]
gfs2: Use gfs2_qd_dispose in gfs2_quota_cleanup

Change gfs2_quota_cleanup() to move the quota data objects to dispose of
on a dispose list and call gfs2_qd_dispose() on that list, like
gfs2_qd_shrink_scan() does, instead of disposing of the quota data
objects directly.

This may look a bit pointless by itself, but it will make more sense in
combination with a fix that follows.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
18 months agogfs2: Fix wrong quota shrinker return value
Andreas Gruenbacher [Tue, 22 Aug 2023 20:59:27 +0000 (22:59 +0200)]
gfs2: Fix wrong quota shrinker return value

Function gfs2_qd_isolate must only return LRU_REMOVED when removing the
item from the lru list; otherwise, the number of items on the list will
go wrong.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
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