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Macro NR_FWNODE_REFERENCE_ARGS defines the maximal argument count
for firmware node reference, and MAX_PHANDLE_ARGS defines the maximal
argument count for DT node reference, both have the same value now.
To void argument count inconsistency between firmware and DT, simply
align both macros by '#define MAX_PHANDLE_ARGS NR_FWNODE_REFERENCE_ARGS'.
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20250225-fix_arg_count-v4-2-13cdc519eb31@quicinc.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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Currently, the following two macros have different values:
// The maximal argument count for firmware node reference
#define NR_FWNODE_REFERENCE_ARGS 8
// The maximal argument count for DT node reference
#define MAX_PHANDLE_ARGS 16
It may cause firmware node reference's argument count out of range if
directly assign DT node reference's argument count to firmware's.
drivers/of/property.c:of_fwnode_get_reference_args() is doing the direct
assignment, so may cause firmware's argument count @args->nargs got out
of range, namely, in [9, 16].
Fix by increasing NR_FWNODE_REFERENCE_ARGS to 16 to meet DT requirement.
Will align both macros later to avoid such inconsistency.
Fixes: 3e3119d3088f ("device property: Introduce fwnode_property_get_reference_args")
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/20250225-fix_arg_count-v4-1-13cdc519eb31@quicinc.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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Add compatible strings for TI SN65LVDS822, a FlatLink LVDS receiver.
Acked-by: "Rob Herring (Arm)" <robh@kernel.org>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.kernel.org/r/20250106-skov-dt-updates-v2-5-4504d3f00ecb@pengutronix.de
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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Use of_property_present() instead of of_get_property() to test property
'compatible' presence in of_platform_bus_create().
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20250224-of_bugfix-v1-5-03640ae8c3a6@quicinc.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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__of_add_property() compares property name by strcmp(), and that is
improper for SPARC which wants strcasecmp().
Fix by using dedicated property name comparison macro of_prop_cmp().
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20250224-of_bugfix-v1-3-03640ae8c3a6@quicinc.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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There are several places which check if a property name is one of
'name'|'phandle'|'linux,phandle'.
Introduce and apply private is_pseudo_property() for the check.
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20250224-of_bugfix-v1-2-03640ae8c3a6@quicinc.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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For these pseudo property names 'name', 'phandle' and 'linux,phandle':
Use dedicated property name comparison macro of_prop_cmp() instead of
strcmp() in of_alias_scan() to:
- Make property name comparison consistent.
- Prepare for introducing private is_pseudo_property() later.
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20250224-of_bugfix-v1-1-03640ae8c3a6@quicinc.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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In of_resolve_phandles(), refcount of device node @local_fixups will be
increased if the for_each_child_of_node() exits early, but nowhere to
decrease the refcount, so cause refcount leakage for the node.
Fix by using __free() on @local_fixups.
Fixes: da56d04c806a ("of/resolver: Switch to new local fixups format.")
Cc: stable@vger.kernel.org
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20250209-of_irq_fix-v2-9-93e3a2659aa7@quicinc.com
[robh: Use __free() instead]
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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Use the __free() cleanup to simplify of_resolve_phandles() and remove
all the goto's.
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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Add comments about refcount of the node returned by of_irq_find_parent().
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20250209-of_irq_fix-v2-8-93e3a2659aa7@quicinc.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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of_irq_init() will leak interrupt controller device node refcounts
in two places as explained below:
1) Leak refcounts of both @desc->dev and @desc->interrupt_parent when
suffers @desc->irq_init_cb() failure.
2) Leak refcount of @desc->interrupt_parent when cleans up list
@intc_desc_list in the end.
Refcounts of both @desc->dev and @desc->interrupt_parent were got in
the first loop, but of_irq_init() does not put them before kfree(@desc)
in places mentioned above, so causes refcount leakages.
Fix by putting refcounts involved before kfree(@desc).
Fixes: 8363ccb917c6 ("of/irq: add missing of_node_put")
Fixes: c71a54b08201 ("of/irq: introduce of_irq_init")
Cc: stable@vger.kernel.org
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20250209-of_irq_fix-v2-7-93e3a2659aa7@quicinc.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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In irq_of_parse_and_map(), refcount of device node @oirq.np was got
by successful of_irq_parse_one() invocation, but it does not put the
refcount before return, so causes @oirq.np refcount leakage.
Fix by putting @oirq.np refcount before return.
Fixes: e3873444990d ("of/irq: Move irq_of_parse_and_map() to common code")
Cc: stable@vger.kernel.org
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20250209-of_irq_fix-v2-6-93e3a2659aa7@quicinc.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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of_irq_count() invokes of_irq_parse_one() to count IRQs, and successful
invocation of the later will get device node @irq.np refcount, but the
former does not put the refcount before next iteration invocation, hence
causes device node refcount leakages.
Fix by putting @irq.np refcount before the next iteration invocation.
Fixes: 3da5278727a8 ("of/irq: Rework of_irq_count()")
Cc: stable@vger.kernel.org
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20250209-of_irq_fix-v2-5-93e3a2659aa7@quicinc.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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if the node @out_irq->np got by of_irq_parse_raw() is a combo node which
consists of both controller and nexus, namely, of_irq_parse_raw() returns
due to condition (@ipar == @newpar), then the node's refcount was increased
twice, hence causes refcount leakage.
Fix by putting @out_irq->np refcount before returning due to the condition.
Also add comments about refcount of node @out_irq->np got by the API.
Fixes: 041284181226 ("of/irq: Allow matching of an interrupt-map local to an interrupt controller")
Cc: stable@vger.kernel.org
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20250209-of_irq_fix-v2-4-93e3a2659aa7@quicinc.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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To test if of_irq_parse_raw(), invoked by of_irq_parse_one(), will leak
refcount of interrupt combo node consisting of controller and nexus.
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20250209-of_irq_fix-v2-3-93e3a2659aa7@quicinc.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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of_irq_parse_one(@int_gen_dev, i, ...) will leak refcount of @i_th_phandle
int_gen_dev {
...
interrupts-extended = ..., <&i_th_phandle ...>, ...;
...
};
Refcount of @i_th_phandle is increased by of_parse_phandle_with_args()
but is not decreased by API of_irq_parse_one() before return, so causes
refcount leakage.
Rework the refcounting to use __free() cleanup and simplify the code to
have a single call to of_irq_parse_raw().
Also add comments about refcount of node @out_irq->np got by the API.
Fixes: 79d9701559a9 ("of/irq: create interrupts-extended property")
Cc: stable@vger.kernel.org
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20250209-of_irq_fix-v2-2-93e3a2659aa7@quicinc.com
[robh: Use __free() to do puts]
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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To test if of_irq_parse_one(@int_gen_dev, i, ...) will leak refcount of
@i_th_phandle.
int_gen_dev {
...
interrupts-extended = ..., <&i_th_phandle ...>, ...;
...
};
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20250209-of_irq_fix-v2-1-93e3a2659aa7@quicinc.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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The Allwinner H616 SoC has a Mali-G31 MP2 GPU, which is of the Mali
Bifrost family.
Add the SoC specific compatible string and pair it with the bifrost
fallback compatible.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20250221005802.11001-4-andre.przywara@arm.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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Describe TI TPS5381 a dual-channel multiphase step-down controller
supporting per-phase and per-channel output telemetry.
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/26aac15b8f0fdbcc2633d3843e216e6c8d30bb31.1740054443.git.michal.simek@amd.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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Add a compatible string for the Renesas RZ/V2H(P) SoC variants that
include a Mali-G31 GPU. These variants share the same restrictions on
interrupts, clocks, and power domains as the RZ/G2L SoC, so extend
the existing schema validation accordingly.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20250218115922.407816-2-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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Describe TPS546B24 DC-DC converter which is very similar to tps546d24
version. The difference is that B version handles up to 20A. D version up
to 40A.
Signed-off-by: Michal Simek <michal.simek@amd.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/c79f69d0d37e7eb61f93f5dea69148b7756a3ee5.1740056021.git.michal.simek@amd.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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Device specific schemas should not allow undefined properties which is
what 'additionalProperties: true' allows. Add a reference to
simple-bus.yaml which has the additional properties used, and fix this
constraint.
Signed-off-by: "Rob Herring (Arm)" <robh@kernel.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20250203213027.8284-1-robh@kernel.org
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Device specific schemas should not allow undefined properties which is
what 'additionalProperties: true' allows. Add a reference to
mc-peripheral-props.yaml which has the additional properties used, and
fix this constraint.
Acked-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250203-dt-lan9115-fix-v1-4-eb35389a7365@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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node properties
In order to validate devices in child nodes, the device schemas need to
reference any child node properties. In order to do that, the properties
for child nodes need to be included in mc-peripheral-props.yaml.
"reg: { maxItems: 1 }" was also incorrect. It's up to the device schemas
how many reg entries they have.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250203-dt-lan9115-fix-v1-3-eb35389a7365@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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In order to validate devices in child nodes, the device schemas need to
reference any child node properties. In order to do that, the properties
for child nodes need to be included in mc-peripheral-props.yaml.
"reg: { maxItems: 1 }" was also incorrect. It's up to the device schemas
how many reg entries they have.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250203-dt-lan9115-fix-v1-2-eb35389a7365@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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The preferred location for external parallel/memory buses is in
memory-controllers. 'bus' is generally for internal chip buses.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250203-dt-lan9115-fix-v1-1-eb35389a7365@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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Documentation/devicetree/bindings/serial/8250.yaml already contains
description for mentined 3 properties that's why remove them from
xilinx.txt file.
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/d90a839566a56df6a0c3b203f701bd863108d047.1738600116.git.michal.simek@amd.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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SystemACE driver has been removed by commit 2907f851f64a ("xsysace: Remove
SYSACE driver") that's why there is no reason to keep description in
xilinx.txt file.
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/7ed73455057a5b3ffe9ba00ce27654c296bfdda7.1738600116.git.michal.simek@amd.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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current-speed description has been added to uartlite description by commit
3de536a8c365 ("dt-bindings: serial: uartlite: Add properties for
synthesis-time parameters") that's why no reason to have in xilinx.txt too.
Fixes: 3de536a8c365 ("dt-bindings: serial: uartlite: Add properties for synthesis-time parameters")
Signed-off-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Sean Anderson <sean.anderson@seco.com>
Link: https://lore.kernel.org/r/aa0b7f9a851c6b8d11f37050f84e0ec69cfa72a2.1738600116.git.michal.simek@amd.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Pull turbostat updates from Len Brown:
- Fix regression that affinitized forked child in one-shot mode.
- Harden one-shot mode against hotplug online/offline
- Enable RAPL SysWatt column by default
- Add initial PTL, CWF platform support
- Harden initial PMT code in response to early use
- Enable first built-in PMT counter: CWF c1e residency
- Refuse to run on unsupported platforms without --force, to encourage
updating to a version that supports the system, and to avoid
no-so-useful measurement results
* tag 'turbostat-2025.02.02' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (25 commits)
tools/power turbostat: version 2025.02.02
tools/power turbostat: Add CPU%c1e BIC for CWF
tools/power turbostat: Harden one-shot mode against cpu offline
tools/power turbostat: Fix forked child affinity regression
tools/power turbostat: Add tcore clock PMT type
tools/power turbostat: version 2025.01.14
tools/power turbostat: Allow adding PMT counters directly by sysfs path
tools/power turbostat: Allow mapping multiple PMT files with the same GUID
tools/power turbostat: Add PMT directory iterator helper
tools/power turbostat: Extend PMT identification with a sequence number
tools/power turbostat: Return default value for unmapped PMT domains
tools/power turbostat: Check for non-zero value when MSR probing
tools/power turbostat: Enhance turbostat self-performance visibility
tools/power turbostat: Add fixed RAPL PSYS divisor for SPR
tools/power turbostat: Fix PMT mmaped file size rounding
tools/power turbostat: Remove SysWatt from DISABLED_BY_DEFAULT
tools/power turbostat: Add an NMI column
tools/power turbostat: add Busy% to "show idle"
tools/power turbostat: Introduce --force parameter
tools/power turbostat: Improve --help output
...
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git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux
Pull sh updates from John Paul Adrian Glaubitz:
"Fixes and improvements for sh:
- replace seq_printf() with the more efficient
seq_put_decimal_ull_width() to increase performance when stress
reading /proc/interrupts (David Wang)
- migrate sh to the generic rule for built-in DTB to help avoid race
conditions during parallel builds which can occur because Kbuild
decends into arch/*/boot/dts twice (Masahiro Yamada)
- replace select with imply in the board Kconfig for enabling
hardware with complex dependencies. This addresses warnings which
were reported by the kernel test robot (Geert Uytterhoeven)"
* tag 'sh-for-v6.14-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux:
sh: boards: Use imply to enable hardware with complex dependencies
sh: Migrate to the generic rule for built-in DTB
sh: irq: Use seq_put_decimal_ull_width() for decimal values
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Summary of Changes since 2024.11.30:
Fix regression in 2023.11.07 that affinitized forked child
in one-shot mode.
Harden one-shot mode against hotplug online/offline
Enable RAPL SysWatt column by default.
Add initial PTL, CWF platform support.
Harden initial PMT code in response to early use.
Enable first built-in PMT counter: CWF c1e residency
Refuse to run on unsupported platforms without --force,
to encourage updating to a version that supports the system,
and to avoid no-so-useful measurement results.
Signed-off-by: Len Brown <len.brown@intel.com>
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Pull misc vfs cleanups from Al Viro:
"Two unrelated patches - one is a removal of long-obsolete include in
overlayfs (it used to need fs/internal.h, but the extern it wanted has
been moved back to include/linux/namei.h) and another introduces
convenience helper constructing struct qstr by a NUL-terminated
string"
* tag 'pull-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
add a string-to-qstr constructor
fs/overlayfs/namei.c: get rid of include ../internal.h
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git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fix from Thomas Bogendoerfer:
"Revert commit breaking sysv ipc for o32 ABI"
* tag 'mips_6.14_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
Revert "mips: fix shmctl/semctl/msgctl syscall for o32"
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git://git.samba.org/sfrench/cifs-2.6
Pull more smb client updates from Steve French:
- various updates for special file handling: symlink handling,
support for creating sockets, cleanups, new mount options (e.g. to
allow disabling using reparse points for them, and to allow
overriding the way symlinks are saved), and fixes to error paths
- fix for kerberos mounts (allow IAKerb)
- SMB1 fix for stat and for setting SACL (auditing)
- fix an incorrect error code mapping
- cleanups"
* tag 'v6.14-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6: (21 commits)
cifs: Fix parsing native symlinks directory/file type
cifs: update internal version number
cifs: Add support for creating WSL-style symlinks
smb3: add support for IAKerb
cifs: Fix struct FILE_ALL_INFO
cifs: Add support for creating NFS-style symlinks
cifs: Add support for creating native Windows sockets
cifs: Add mount option -o reparse=none
cifs: Add mount option -o symlink= for choosing symlink create type
cifs: Fix creating and resolving absolute NT-style symlinks
cifs: Simplify reparse point check in cifs_query_path_info() function
cifs: Remove symlink member from cifs_open_info_data union
cifs: Update description about ACL permissions
cifs: Rename struct reparse_posix_data to reparse_nfs_data_buffer and move to common/smb2pdu.h
cifs: Remove struct reparse_posix_data from struct cifs_open_info_data
cifs: Remove unicode parameter from parse_reparse_point() function
cifs: Fix getting and setting SACLs over SMB1
cifs: Remove intermediate object of failed create SFU call
cifs: Validate EAs for WSL reparse points
cifs: Change translation of STATUS_PRIVILEGE_NOT_HELD to -EPERM
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull debugfs fix from Greg KH:
"Here is a single debugfs fix from Al to resolve a reported regression
in the driver-core tree. It has been reported to fix the issue"
* tag 'driver-core-6.14-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
debugfs: Fix the missing initializations in __debugfs_file_get()
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"21 hotfixes. 8 are cc:stable and the remainder address post-6.13
issues. 13 are for MM and 8 are for non-MM.
All are singletons, please see the changelogs for details"
* tag 'mm-hotfixes-stable-2025-02-01-03-56' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (21 commits)
MAINTAINERS: include linux-mm for xarray maintenance
revert "xarray: port tests to kunit"
MAINTAINERS: add lib/test_xarray.c
mailmap, MAINTAINERS, docs: update Carlos's email address
mm/hugetlb: fix hugepage allocation for interleaved memory nodes
mm: gup: fix infinite loop within __get_longterm_locked
mm, swap: fix reclaim offset calculation error during allocation
.mailmap: update email address for Christopher Obbard
kfence: skip __GFP_THISNODE allocations on NUMA systems
nilfs2: fix possible int overflows in nilfs_fiemap()
mm: compaction: use the proper flag to determine watermarks
kernel: be more careful about dup_mmap() failures and uprobe registering
mm/fake-numa: handle cases with no SRAT info
mm: kmemleak: fix upper boundary check for physical address objects
mailmap: add an entry for Hamza Mahfooz
MAINTAINERS: mailmap: update Yosry Ahmed's email address
scripts/gdb: fix aarch64 userspace detection in get_current_task
mm/vmscan: accumulate nr_demoted for accurate demotion statistics
ocfs2: fix incorrect CPU endianness conversion causing mount failure
mm/zsmalloc: add __maybe_unused attribute for is_first_zpdesc()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fix from Mauro Carvalho Chehab:
"A revert for a regression in the uvcvideo driver"
* tag 'media/v6.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
Revert "media: uvcvideo: Require entities to have a non-zero unique ID"
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MM developers have an interest in the xarray code.
Cc: David Gow <davidgow@google.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: "Liam R. Howlett" <Liam.Howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Cc: Tamir Duberstein <tamird@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Revert c7bb5cf9fc4e ("xarray: port tests to kunit"). It broke the build
when compiing the xarray userspace test harness code.
Reported-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Closes: https://lkml.kernel.org/r/07cf896e-adf8-414f-a629-a808fc26014a@oracle.com
Cc: David Gow <davidgow@google.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Tamir Duberstein <tamird@gmail.com>
Cc: "Liam R. Howlett" <Liam.Howlett@oracle.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Ensure test-only changes are sent to the relevant maintainer.
Link: https://lkml.kernel.org/r/20250129-xarray-test-maintainer-v1-1-482e31f30f47@gmail.com
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Cc: Mattew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Update .mailmap to reflect my new (and final) primary email address,
carlos.bilbao@kernel.org. Also update contact information in files
Documentation/translations/sp_SP/index.rst and MAINTAINERS.
Link: https://lkml.kernel.org/r/20250130012248.1196208-1-carlos.bilbao@kernel.org
Signed-off-by: Carlos Bilbao <carlos.bilbao@kernel.org>
Cc: Carlos Bilbao <bilbao@vt.edu>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Mattew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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gather_bootmem_prealloc() assumes the start nid as 0 and size as
num_node_state(N_MEMORY). That means in case if memory attached numa
nodes are interleaved, then gather_bootmem_prealloc_parallel() will fail
to scan few of these nodes.
Since memory attached numa nodes can be interleaved in any fashion, hence
ensure that the current code checks for all numa node ids
(.size = nr_node_ids). Let's still keep max_threads as N_MEMORY, so that
it can distributes all nr_node_ids among the these many no. threads.
e.g. qemu cmdline
========================
numa_cmd="-numa node,nodeid=1,memdev=mem1,cpus=2-3 -numa node,nodeid=0,cpus=0-1 -numa dist,src=0,dst=1,val=20"
mem_cmd="-object memory-backend-ram,id=mem1,size=16G"
w/o this patch for cmdline (default_hugepagesz=1GB hugepagesz=1GB hugepages=2):
==========================
~ # cat /proc/meminfo |grep -i huge
AnonHugePages: 0 kB
ShmemHugePages: 0 kB
FileHugePages: 0 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 1048576 kB
Hugetlb: 0 kB
with this patch for cmdline (default_hugepagesz=1GB hugepagesz=1GB hugepages=2):
===========================
~ # cat /proc/meminfo |grep -i huge
AnonHugePages: 0 kB
ShmemHugePages: 0 kB
FileHugePages: 0 kB
HugePages_Total: 2
HugePages_Free: 2
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 1048576 kB
Hugetlb: 2097152 kB
Link: https://lkml.kernel.org/r/f8d8dad3a5471d284f54185f65d575a6aaab692b.1736592534.git.ritesh.list@gmail.com
Fixes: b78b27d02930 ("hugetlb: parallelize 1G hugetlb initialization")
Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Reported-by: Pavithra Prakash <pavrampu@linux.ibm.com>
Suggested-by: Muchun Song <muchun.song@linux.dev>
Tested-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Reviewed-by: Luiz Capitulino <luizcap@redhat.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Donet Tom <donettom@linux.ibm.com>
Cc: Gang Li <gang.li@linux.dev>
Cc: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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We can run into an infinite loop in __get_longterm_locked() when
collect_longterm_unpinnable_folios() finds only folios that are isolated
from the LRU or were never added to the LRU. This can happen when all
folios to be pinned are never added to the LRU, for example when
vm_ops->fault allocated pages using cma_alloc() and never added them to
the LRU.
Fix it by simply taking a look at the list in the single caller, to see if
anything was added.
[zhaoyang.huang@unisoc.com: move definition of local]
Link: https://lkml.kernel.org/r/20250122012604.3654667-1-zhaoyang.huang@unisoc.com
Link: https://lkml.kernel.org/r/20250121020159.3636477-1-zhaoyang.huang@unisoc.com
Fixes: 67e139b02d99 ("mm/gup.c: refactor check_and_migrate_movable_pages()")
Signed-off-by: Zhaoyang Huang <zhaoyang.huang@unisoc.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Suggested-by: David Hildenbrand <david@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Aijun Sun <aijun.sun@unisoc.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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There is a code error that will cause the swap entry allocator to reclaim
and check the whole cluster with an unexpected tail offset instead of the
part that needs to be reclaimed. This may cause corruption of the swap
map, so fix it.
Link: https://lkml.kernel.org/r/20250130115131.37777-1-ryncsn@gmail.com
Fixes: 3b644773eefd ("mm, swap: reduce contention on device lock")
Signed-off-by: Kairui Song <kasong@tencent.com>
Cc: Chris Li <chrisl@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Update my email address.
Link: https://lkml.kernel.org/r/20250122-wip-obbardc-update-email-v2-1-12bde6b79ad0@linaro.org
Signed-off-by: Christopher Obbard <christopher.obbard@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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On NUMA systems, __GFP_THISNODE indicates that an allocation _must_ be on
a particular node, and failure to allocate on the desired node will result
in a failed allocation.
Skip __GFP_THISNODE allocations if we are running on a NUMA system, since
KFENCE can't guarantee which node its pool pages are allocated on.
Link: https://lkml.kernel.org/r/20250124120145.410066-1-elver@google.com
Fixes: 236e9f153852 ("kfence: skip all GFP_ZONEMASK allocations")
Signed-off-by: Marco Elver <elver@google.com>
Reported-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Chistoph Lameter <cl@linux.com>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Since nilfs_bmap_lookup_contig() in nilfs_fiemap() calculates its result
by being prepared to go through potentially maxblocks == INT_MAX blocks,
the value in n may experience an overflow caused by left shift of blkbits.
While it is extremely unlikely to occur, play it safe and cast right hand
expression to wider type to mitigate the issue.
Found by Linux Verification Center (linuxtesting.org) with static analysis
tool SVACE.
Link: https://lkml.kernel.org/r/20250124222133.5323-1-konishi.ryusuke@gmail.com
Fixes: 622daaff0a89 ("nilfs2: fiemap support")
Signed-off-by: Nikita Zhandarovich <n.zhandarovich@fintech.ru>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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There are 4 NUMA nodes on my machine, and each NUMA node has 32GB of
memory. I have configured 16GB of CMA memory on each NUMA node, and
starting a 32GB virtual machine with device passthrough is extremely slow,
taking almost an hour.
Long term GUP cannot allocate memory from CMA area, so a maximum of 16 GB
of no-CMA memory on a NUMA node can be used as virtual machine memory.
There is 16GB of free CMA memory on a NUMA node, which is sufficient to
pass the order-0 watermark check, causing the __compaction_suitable()
function to consistently return true.
For costly allocations, if the __compaction_suitable() function always
returns true, it causes the __alloc_pages_slowpath() function to fail to
exit at the appropriate point. This prevents timely fallback to
allocating memory on other nodes, ultimately resulting in excessively long
virtual machine startup times.
Call trace:
__alloc_pages_slowpath
if (compact_result == COMPACT_SKIPPED ||
compact_result == COMPACT_DEFERRED)
goto nopage; // should exit __alloc_pages_slowpath() from here
We could use the real unmovable allocation context to have
__zone_watermark_unusable_free() subtract CMA pages, and thus we won't
pass the order-0 check anymore once the non-CMA part is exhausted. There
is some risk that in some different scenario the compaction could in fact
migrate pages from the exhausted non-CMA part of the zone to the CMA part
and succeed, and we'll skip it instead. But only __GFP_NORETRY
allocations should be affected in the immediate "goto nopage" when
compaction is skipped, others will attempt with DEF_COMPACT_PRIORITY
anyway and won't fail without trying to compact-migrate the non-CMA
pageblocks into CMA pageblocks first, so it should be fine.
After this fix, it only takes a few tens of seconds to start a 32GB
virtual machine with device passthrough functionality.
Link: https://lore.kernel.org/lkml/1736335854-548-1-git-send-email-yangge1116@126.com/
Link: https://lkml.kernel.org/r/1737788037-8439-1-git-send-email-yangge1116@126.com
Signed-off-by: yangge <yangge1116@126.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Barry Song <21cnbao@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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