ARM: dts: renesas: r9a06g032: Fix UART dma channel order
make dtbs_check:
arch/arm/boot/dts/renesas/r9a06g032-rzn1d400-db.dtb: serial@50000000: dma-names:0: 'tx' was expected
from schema $id: http://devicetree.org/schemas/serial/snps-dw-apb-uart.yaml#
arch/arm/boot/dts/renesas/r9a06g032-rzn1d400-db.dtb: serial@50000000: dma-names:1: 'rx' was expected
from schema $id: http://devicetree.org/schemas/serial/snps-dw-apb-uart.yaml#
...
The DT bindings specify a fixed order of the channels in the dmas and
dma-names properties, while the Linux driver does not care.
Get rid of the warnings by changing the order in the DTS to match the
bindings.
Marek Vasut [Sun, 9 Feb 2025 18:05:06 +0000 (19:05 +0100)]
arm64: dts: renesas: rzg2: Add boot phase tags
bootph-all as phase tag was added to dt-schema
(dtschema/schemas/bootph.yaml) to describe various node usage during
boot phases with DT. Add bootph-all for all nodes that are used in the
bootloader on Renesas RZ/G2 SoCs.
All SoC require CPG clock and its input clock, RST Reset, PFC pin
control and PRR ID register access during all stages of the boot
process, those are marked using bootph-all property, and so is the SoC
bus node which contains these IP.
Each board console UART is also marked as bootph-all to make it
available in all stages of the boot process.
Marek Vasut [Sun, 9 Feb 2025 18:05:05 +0000 (19:05 +0100)]
arm64: dts: renesas: rcar: Add boot phase tags
bootph-all as phase tag was added to dt-schema
(dtschema/schemas/bootph.yaml) to describe various node usage during
boot phases with DT. Add bootph-all for all nodes that are used in the
bootloader on Renesas R-Car SoCs.
All SoC require CPG clock and its input clock, RST Reset, PFC pin
control and PRR ID register access during all stages of the boot
process, those are marked using bootph-all property, and so is the SoC
bus node which contains these IP.
Each board console UART is also marked as bootph-all to make it
available in all stages of the boot process.
Marek Vasut [Sun, 9 Feb 2025 18:05:04 +0000 (19:05 +0100)]
ARM: dts: renesas: rcar-gen2: Add boot phase tags
bootph-all as phase tag was added to dt-schema
(dtschema/schemas/bootph.yaml) to describe various node usage during
boot phases with DT. Add bootph-all for all nodes that are used in the
bootloader on Renesas R-Car Gen2 SoCs.
All SoC require CPG clock and its input clock, RST Reset, PFC pin
control and PRR ID register access during all stages of the boot
process, those are marked using bootph-all property, and so is the SoC
bus node which contains these IP.
Each board console UART is also marked as bootph-all to make it
available in all stages of the boot process.
arm64: dts: renesas: white-hawk-csi-dsi: Use names for CSI-2 data line orders
The symbolic names for the line-orders are now available in
<dt-bindings/media/video-interfaces.h>. Switch to them instead of using
their numerical values.
arm64: dts: renesas: r8a779f0: Disable rswitch ports by default
The Renesas Ethernet Switch has three independent ports. Each port can
act as a separate interface, and can be enabled or disabled
independently. Currently all ports are enabled by default, hence board
DTS files that enable the switch must disable all unused ports
explicitly.
Disable all ports by default, and explicitly enable ports that are used,
next to their configuration.
Claudiu Beznea [Mon, 20 Jan 2025 13:09:34 +0000 (15:09 +0200)]
arm64: dts: renesas: rzg3s-smarc-switches: Add a header to describe different switches
There are different switches available on both the RZ/G3S SMARC Module and
RZ SMARC Carrier II boards. These switches are used to route different SoC
signals to different parts available on board.
These switches are described in device trees through macros. These macros
are set accordingly such that the resulted compiled dtb to describe the
on-board switches states.
The SCIF1 depends on the state of the SW_CONFIG3 and SW_OPT_MUX4 switches.
SCIF1 can be enabled through a device tree overlay. To manage all switches
in a unified state and allow users to configure the output device tree, add
a file that contains all switch definitions and states.
Commit prepares the code to enable SCIF1 on the RZ/G3S overlay.
Marek Vasut [Sat, 18 Jan 2025 11:13:12 +0000 (12:13 +0100)]
arm64: dts: renesas: s4sk: Fix ethernet0 alias for rswitch
Each rswitch port TSNn has a dedicated MAC address assigned to it, so
does AVB MAC. The MAC addresses for each rswitch port and AVB, four in
total, are stored in the FPGA populated on the board and can be read out
via I2C from bus i2c@e66e0000 address 0x70 offsets 0x58 for AVB and
0x60, 0x68, 0x70 for TSNn.
There is no single MAC address assigned to the rswitch itself, there are
three of them, one for each rswitch port. Instead of ethernet0 alias
for rswitch itself, describe aliases ethernet0, ethernet1 for each
enabled rswitch port. This allows U-Boot to insert MAC addresses from
its environment variables ethaddr/eth1addr/eth2addr into each rswitch
port nodes, so Linux can read and use one unique MAC address for each
rswitch port.
Note that it is unlikely this would break existing rswitch driver
operation in the Linux kernel, because as of right now, the rswitch
driver already calls of_get_ethdev_address() for each port to read
out the MAC address of each rswitch port DT node. If that is missing,
it falls back to MAC address settings read from the hardware itself.
If that also fails, it uses a random MAC address.
Marek Vasut [Sat, 18 Jan 2025 11:13:11 +0000 (12:13 +0100)]
arm64: dts: renesas: spider-ethernet: Add ethernetN aliases for rswitch
The rswitch has three independent ports which each can act as a separate
interface with its own MAC address. Describe DT aliases ethernet0,
ethernet1, ethernet2 for each rswitch port in DT. This allows U-Boot to
insert MAC addresses from its environment variables
ethaddr/eth1addr/eth2addr into each rswitch port nodes, so Linux can
read and use one unique MAC address for each rswitch port.
Note that it is unlikely this would break existing rswitch driver
operation in the Linux kernel, because as of right now, the rswitch
driver already calls of_get_ethdev_address() for each port to read
out the MAC address of each rswitch port DT node. If that is missing,
it falls back to MAC address settings read from the hardware itself.
If that also fails, it uses a random MAC address.
Marek Vasut [Sat, 18 Jan 2025 11:13:10 +0000 (12:13 +0100)]
arm64: dts: renesas: s4sk: Access rswitch ports via phandles
The r8a779f0.dtsi now contains labels for each rswitch port in the form
'rswitch_portN'. Use those to access rswitch ports and slightly reduce
the depth of this board DT. No functional change.
Marek Vasut [Sat, 18 Jan 2025 11:13:09 +0000 (12:13 +0100)]
arm64: dts: renesas: spider-ethernet: Access rswitch ports via phandles
The r8a779f0.dtsi now contains labels for each rswitch port in the form
'rswitch_portN'. Use those to access rswitch ports and slightly reduce
the depth of this board DT. No functional change.
Marek Vasut [Sat, 18 Jan 2025 11:13:08 +0000 (12:13 +0100)]
arm64: dts: renesas: r8a779f0: Add labels for rswitch ports
Introduce labels for each rswitch port in the form 'rswitch_portN'.
Those can be used to access rswitch port nodes directly, which is going
to be useful in reducing DT indentation slightly as well as in the DT
/aliases node to reference the rswitch ports as ethernetN interfaces.
No functional change.
arm64: dts: renesas: Add initial device tree for Yuridenki-Shokai Kakip board
Add basic support for the Yuridenki-Shokai Kakip board based on
R9A09G057H48, including:
- Memory
- OSTM0 - OSTM7
- Pin Control
- Input clocks
- SCIF
- SDHI0
arm64: dts: renesas: eagle-function-expansion: Align GPIO hog name with bindings
Bindings expect GPIO hog names to end with 'hog' suffix, so correct it
to fix dtbs_check warning:
r8a77970-eagle-function-expansion.dtb: gpio@27: 'vin0_adv7612_en' does not match any of the regexes: '^(hog-[0-9]+|.+-hog(-[0-9]+)?)$', 'pinctrl-[0-9]+'
arm64: dts: renesas: r8a779h0: Remove #address- and #size-cells from AVB[0-2]
When describing the PHYs connected to AVB1 and AVB2, mdio nodes will be
needed to describe the connections, and each mdio node will need to
contain these two properties instead. This will make the #address-cells
and #size-cells described in the base SoC include file redundant and
they will produce warnings, remove them.
In an effort to keep all three AVB nodes style consistent add an mdio
node to AVB0 already described and rename the phy node to better
describe the PHY that is connected to AVB0 before adding more PHYs.
arm64: dts: renesas: r8a77990: Re-add voltages to OPP table
When CONFIG_ENERGY_MODEL=y:
cpu cpu0: EM: invalid perf. state: -22
When removing the (incorrect) voltages from the Operating Points
Parameters tables, it was assumed they were optional, and unused, when
none of the CPU nodes is tied to a regulator using the "cpu-supply"
property. This assumption turned out to be incorrect, causing the
reported error message.
Fix this by re-adding the (correct) voltages. Note that because all
voltages are identical, all operating points are considered to have the
same efficiency, and the energy model always picks the one with the
highest clock rate.
arm64: dts: renesas: r8a774c0: Re-add voltages to OPP table
When CONFIG_ENERGY_MODEL=y:
cpu cpu0: EM: invalid perf. state: -22
When removing the (incorrect) voltages from the Operating Points
Parameters tables, it was assumed they were optional, and unused, when
none of the CPU nodes is tied to a regulator using the "cpu-supply"
property. This assumption turned out to be incorrect, causing the
reported error message.
Fix this by re-adding the (correct) voltages. Note that because all
voltages are identical, all operating points are considered to have the
same efficiency, and the energy model always picks the one with the
highest clock rate.
Linus Torvalds [Sun, 2 Feb 2025 18:49:13 +0000 (10:49 -0800)]
Merge tag 'turbostat-2025.02.02' of 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
...
Linus Torvalds [Sun, 2 Feb 2025 18:40:27 +0000 (10:40 -0800)]
Merge tag 'sh-for-v6.14-tag1' of 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
Len Brown [Sun, 2 Feb 2025 16:43:02 +0000 (10:43 -0600)]
tools/power turbostat: version 2025.02.02
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.
Linus Torvalds [Sat, 1 Feb 2025 23:07:56 +0000 (15:07 -0800)]
Merge tag 'pull-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
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
Linus Torvalds [Sat, 1 Feb 2025 19:30:41 +0000 (11:30 -0800)]
Merge tag 'v6.14-rc-smb3-client-fixes-part2' of 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
...
Linus Torvalds [Sat, 1 Feb 2025 18:04:29 +0000 (10:04 -0800)]
Merge tag 'driver-core-6.14-rc1-2' of 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()
Linus Torvalds [Sat, 1 Feb 2025 17:49:20 +0000 (09:49 -0800)]
Merge tag 'mm-hotfixes-stable-2025-02-01-03-56' of 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()
...
Linus Torvalds [Sat, 1 Feb 2025 17:15:01 +0000 (09:15 -0800)]
Merge tag 'media/v6.14-2' of 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"
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>
mm/hugetlb: fix hugepage allocation for interleaved memory nodes
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.
Zhaoyang Huang [Tue, 21 Jan 2025 02:01:59 +0000 (10:01 +0800)]
mm: gup: fix infinite loop within __get_longterm_locked
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>
Kairui Song [Thu, 30 Jan 2025 11:51:31 +0000 (19:51 +0800)]
mm, swap: fix reclaim offset calculation error during allocation
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>
Marco Elver [Fri, 24 Jan 2025 12:01:38 +0000 (13:01 +0100)]
kfence: skip __GFP_THISNODE allocations on NUMA systems
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>
nilfs2: fix possible int overflows in nilfs_fiemap()
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.
yangge [Sat, 25 Jan 2025 06:53:57 +0000 (14:53 +0800)]
mm: compaction: use the proper flag to determine watermarks
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.
Liam R. Howlett [Mon, 27 Jan 2025 17:02:21 +0000 (12:02 -0500)]
kernel: be more careful about dup_mmap() failures and uprobe registering
If a memory allocation fails during dup_mmap(), the maple tree can be left
in an unsafe state for other iterators besides the exit path. All the
locks are dropped before the exit_mmap() call (in mm/mmap.c), but the
incomplete mm_struct can be reached through (at least) the rmap finding
the vmas which have a pointer back to the mm_struct.
Up to this point, there have been no issues with being able to find an
mm_struct that was only partially initialised. Syzbot was able to make
the incomplete mm_struct fail with recent forking changes, so it has been
proven unsafe to use the mm_struct that hasn't been initialised, as
referenced in the link below.
Although 8ac662f5da19f ("fork: avoid inappropriate uprobe access to
invalid mm") fixed the uprobe access, it does not completely remove the
race.
This patch sets the MMF_OOM_SKIP to avoid the iteration of the vmas on the
oom side (even though this is extremely unlikely to be selected as an oom
victim in the race window), and sets MMF_UNSTABLE to avoid other potential
users from using a partially initialised mm_struct.
When registering vmas for uprobe, skip the vmas in an mm that is marked
unstable. Modifying a vma in an unstable mm may cause issues if the mm
isn't fully initialised.
Link: https://lore.kernel.org/all/6756d273.050a0220.2477f.003d.GAE@google.com/ Link: https://lkml.kernel.org/r/20250127170221.1761366-1-Liam.Howlett@oracle.com Fixes: d24062914837 ("fork: use __mt_dup() to duplicate maple tree in dup_mmap()") Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com> Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Jann Horn <jannh@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Peng Zhang <zhangpeng.00@bytedance.com> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Bruno Faccini [Mon, 27 Jan 2025 17:16:23 +0000 (09:16 -0800)]
mm/fake-numa: handle cases with no SRAT info
Handle more gracefully cases where no SRAT information is available, like
in VMs with no Numa support, and allow fake-numa configuration to complete
successfully in these cases
Link: https://lkml.kernel.org/r/20250127171623.1523171-1-bfaccini@nvidia.com Fixes: 63db8170bf34 (“mm/fake-numa: allow later numa node hotplug”) Signed-off-by: Bruno Faccini <bfaccini@nvidia.com> Cc: David Hildenbrand <david@redhat.com> Cc: Hyeonggon Yoo <hyeonggon.yoo@sk.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Len Brown <lenb@kernel.org> Cc: "Mike Rapoport (IBM)" <rppt@kernel.org> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Zi Yan <ziy@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Catalin Marinas [Mon, 27 Jan 2025 18:42:33 +0000 (18:42 +0000)]
mm: kmemleak: fix upper boundary check for physical address objects
Memblock allocations are registered by kmemleak separately, based on their
physical address. During the scanning stage, it checks whether an object
is within the min_low_pfn and max_low_pfn boundaries and ignores it
otherwise.
With the recent addition of __percpu pointer leak detection (commit 6c99d4eb7c5e ("kmemleak: enable tracking for percpu pointers")), kmemleak
started reporting leaks in setup_zone_pageset() and
setup_per_cpu_pageset(). These were caused by the node_data[0] object
(initialised in alloc_node_data()) ending on the PFN_PHYS(max_low_pfn)
boundary. The non-strict upper boundary check introduced by commit 84c326299191 ("mm: kmemleak: check physical address when scan") causes the
pg_data_t object to be ignored (not scanned) and the __percpu pointers it
contains to be reported as leaks.
Make the max_low_pfn upper boundary check strict when deciding whether to
ignore a physical address object and not scan it.
Link: https://lkml.kernel.org/r/20250127184233.2974311-1-catalin.marinas@arm.com Fixes: 84c326299191 ("mm: kmemleak: check physical address when scan") Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Reported-by: Jakub Kicinski <kuba@kernel.org> Tested-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Cc: Patrick Wang <patrick.wang.shcn@gmail.com> Cc: <stable@vger.kernel.org> [6.0.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Hamza Mahfooz [Mon, 20 Jan 2025 20:56:59 +0000 (15:56 -0500)]
mailmap: add an entry for Hamza Mahfooz
Map my previous work email to my current one.
Link: https://lkml.kernel.org/r/20250120205659.139027-1-hamzamahfooz@linux.microsoft.com Signed-off-by: Hamza Mahfooz <hamzamahfooz@linux.microsoft.com> Cc: David S. Miller <davem@davemloft.net> Cc: Hans verkuil <hverkuil@xs4all.nl> Cc: Matthieu Baerts <matttbe@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Li Zhijian [Fri, 10 Jan 2025 12:21:32 +0000 (20:21 +0800)]
mm/vmscan: accumulate nr_demoted for accurate demotion statistics
In shrink_folio_list(), demote_folio_list() can be called 2 times.
Currently stat->nr_demoted will only store the last nr_demoted( the later
nr_demoted is always zero, the former nr_demoted will get lost), as a
result number of demoted pages is not accurate.
Accumulate the nr_demoted count across multiple calls to
demote_folio_list(), ensuring accurate reporting of demotion statistics.
[lizhijian@fujitsu.com: introduce local nr_demoted to fix nr_reclaimed double counting] Link: https://lkml.kernel.org/r/20250111015253.425693-1-lizhijian@fujitsu.com Link: https://lkml.kernel.org/r/20250110122133.423481-1-lizhijian@fujitsu.com Fixes: f77f0c751478 ("mm,memcg: provide per-cgroup counters for NUMA balancing operations") Signed-off-by: Li Zhijian <lizhijian@fujitsu.com> Acked-by: Kaiyang Zhao <kaiyang2@cs.cmu.edu> Tested-by: Donet Tom <donettom@linux.ibm.com> Reviewed-by: Donet Tom <donettom@linux.ibm.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Heming Zhao [Tue, 21 Jan 2025 11:22:03 +0000 (19:22 +0800)]
ocfs2: fix incorrect CPU endianness conversion causing mount failure
Commit 23aab037106d ("ocfs2: fix UBSAN warning in ocfs2_verify_volume()")
introduced a regression bug. The blksz_bits value is already converted to
CPU endian in the previous code; therefore, the code shouldn't use
le32_to_cpu() anymore.
Link: https://lkml.kernel.org/r/20250121112204.12834-1-heming.zhao@suse.com Fixes: 23aab037106d ("ocfs2: fix UBSAN warning in ocfs2_verify_volume()") Signed-off-by: Heming Zhao <heming.zhao@suse.com> Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Changwei Ge <gechangwei@live.cn> Cc: Jun Piao <piaojun@huawei.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Hyeonggon Yoo [Mon, 27 Jan 2025 23:16:31 +0000 (08:16 +0900)]
mm/zsmalloc: add __maybe_unused attribute for is_first_zpdesc()
Commit c1b3bb73d55e ("mm/zsmalloc: use zpdesc in
trylock_zspage()/lock_zspage()") introduces is_first_zpdesc() function.
However, the function is only used when CONFIG_DEBUG_VM=y.
When building with LLVM=1 and W=1 option, the following warning is
generated:
$ make -j12 W=1 LLVM=1 mm/zsmalloc.o
mm/zsmalloc.c:455:20: error: function 'is_first_zpdesc' is not needed and will not be emitted [-Werror,-Wunneeded-internal-declaration]
455 | static inline bool is_first_zpdesc(struct zpdesc *zpdesc)
| ^~~~~~~~~~~~~~~
1 error generated.
Fix the warning by adding __maybe_unused attribute to the function.
No functional change intended.
Link: https://lkml.kernel.org/r/20250127231631.4363-1-42.hyeyoo@gmail.com Fixes: c1b3bb73d55e ("mm/zsmalloc: use zpdesc in trylock_zspage()/lock_zspage()") Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202501240958.4ILzuBrH-lkp@intel.com/ Cc: Alex Shi <alexs@kernel.org> Cc: Minchan Kim <minchan@kernel.org> Cc: Sergey Senozhatsky <senozhatsky@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
liuye [Tue, 19 Nov 2024 06:08:42 +0000 (14:08 +0800)]
mm/vmscan: fix hard LOCKUP in function isolate_lru_folios
This fixes the following hard lockup in isolate_lru_folios() during memory
reclaim. If the LRU mostly contains ineligible folios this may trigger
watchdog.
watchdog: Watchdog detected hard LOCKUP on cpu 173
RIP: 0010:native_queued_spin_lock_slowpath+0x255/0x2a0
Call Trace:
_raw_spin_lock_irqsave+0x31/0x40
folio_lruvec_lock_irqsave+0x5f/0x90
folio_batch_move_lru+0x91/0x150
lru_add_drain_per_cpu+0x1c/0x40
process_one_work+0x17d/0x350
worker_thread+0x27b/0x3a0
kthread+0xe8/0x120
ret_from_fork+0x34/0x50
ret_from_fork_asm+0x1b/0x30
Scenario:
User processe are requesting a large amount of memory and keep page active.
Then a module continuously requests memory from ZONE_DMA32 area.
Memory reclaim will be triggered due to ZONE_DMA32 watermark alarm reached.
However pages in the LRU(active_anon) list are mostly from
the ZONE_NORMAL area.
About the Fixes:
Why did it take eight years to be discovered?
The problem requires the following conditions to occur:
1. The device memory should be large enough.
2. Pages in the LRU(active_anon) list are mostly from the ZONE_NORMAL area.
3. The memory in ZONE_DMA32 needs to reach the watermark.
If the memory is not large enough, or if the usage design of ZONE_DMA32
area memory is reasonable, this problem is difficult to detect.
notes:
The problem is most likely to occur in ZONE_DMA32 and ZONE_NORMAL,
but other suitable scenarios may also trigger the problem.
Link: https://lkml.kernel.org/r/20241119060842.274072-1-liuye@kylinos.cn Fixes: b2e18757f2c9 ("mm, vmscan: begin reclaiming pages on a per-node basis") Signed-off-by: liuye <liuye@kylinos.cn> Cc: Hugh Dickins <hughd@google.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Yang Shi <yang@os.amperecomputing.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
sh: boards: Use imply to enable hardware with complex dependencies
If CONFIG_I2C=n:
WARNING: unmet direct dependencies detected for SND_SOC_AK4642
Depends on [n]: SOUND [=y] && SND [=y] && SND_SOC [=y] && I2C [=n]
Selected by [y]:
- SH_7724_SOLUTION_ENGINE [=y] && CPU_SUBTYPE_SH7724 [=y] && SND_SIMPLE_CARD [=y]
WARNING: unmet direct dependencies detected for SND_SOC_DA7210
Depends on [n]: SOUND [=y] && SND [=y] && SND_SOC [=y] && SND_SOC_I2C_AND_SPI [=n]
Selected by [y]:
- SH_ECOVEC [=y] && CPU_SUBTYPE_SH7724 [=y] && SND_SIMPLE_CARD [=y]
Fix this by replacing select by imply, instead of adding a dependency on
I2C.
Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202501240836.OvXqmANX-lkp@intel.com/ Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Masahiro Yamada [Sun, 22 Dec 2024 00:32:07 +0000 (09:32 +0900)]
sh: Migrate to the generic rule for built-in DTB
Commit 654102df2ac2 ("kbuild: add generic support for built-in
boot DTBs") introduced generic support for built-in DTBs.
Select GENERIC_BUILTIN_DTB when built-in DTB support is enabled.
To keep consistency across architectures, this commit also renames
CONFIG_USE_BUILTIN_DTB to CONFIG_BUILTIN_DTB, and
CONFIG_BUILTIN_DTB_SOURCE to CONFIG_BUILTIN_DTB_NAME.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
David Wang [Sat, 30 Nov 2024 13:49:09 +0000 (21:49 +0800)]
sh: irq: Use seq_put_decimal_ull_width() for decimal values
On a system with n CPUs and m interrupts, there will be n*m decimal
values yielded via seq_printf(.."%10u "..) which has significant costs
parsing format string and is less efficient than seq_put_decimal_ull_width().
Stress reading /proc/interrupts indicates ~30% performance improvement with
this patch.
Signed-off-by: David Wang <00107082@163.com> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
* tag 'for-linus-hexagon-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/bcain/linux:
MAINTAINERS: Update my email address
hexagon: Fix unbalanced spinlock in die()
hexagon: Fix warning comparing pointer to 0
hexagon: Move kernel prototypes out of uapi/asm/setup.h header
hexagon: time: Remove redundant null check for resource
hexagon: fix using plain integer as NULL pointer warning in cmpxchg
Linus Torvalds [Sat, 1 Feb 2025 03:49:17 +0000 (19:49 -0800)]
Remove stale generated 'genheaders' file
This bogus stale file was added in commit 101971298be2 ("riscv: add a
warning when physical memory address overflows"). It's the old location
for what is now 'security/selinux/genheaders'.
It looks like it got incorrectly committed back when that file was in
the old location, and then rebasing kept the bogus file alive.
Reported-by: Eric Biggers <ebiggers@kernel.org> Link: https://lore.kernel.org/linux-riscv/20250201020003.GA77370@sol.localdomain/ Fixes: 101971298be2 ("riscv: add a warning when physical memory address overflows") Cc: Palmer Dabbelt <palmer@rivosinc.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 1 Feb 2025 01:10:26 +0000 (17:10 -0800)]
Merge tag 'hardening-v6.14-rc1-fix1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardening fixes from Kees Cook:
"This is a fix for the soon to be released GCC 15 which has regressed
its initialization of unions when performing explicit initialization
(i.e. a general problem, not specifically a hardening problem; we're
just carrying the fix).
Details in the final patch, Acked by Masahiro, with updated selftests
to validate the fix"
* tag 'hardening-v6.14-rc1-fix1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
kbuild: Use -fzero-init-padding-bits=all
stackinit: Add union initialization to selftests
stackinit: Add old-style zero-init syntax to struct tests
* tag 'drm-next-2025-02-01' of https://gitlab.freedesktop.org/drm/kernel:
drm/amd/display: restore invalid MSA timing check for freesync
drm/amdkfd: only flush the validate MES contex
drm/amd/display: Correct register address in dcn35
drm/amd/pm: Mark MM activity as unsupported
drm/amd/amdgpu: change the config of cgcg on gfx12
drm/amdkfd: Block per-queue reset when halt_if_hws_hang=1
Linus Torvalds [Fri, 31 Jan 2025 23:39:50 +0000 (15:39 -0800)]
Merge tag 'pci-v6.14-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci fix from Bjorn Helgaas:
- Save the original INTX_DISABLE bit at the first pcim_intx() call and
restore that at devres cleanup instead of restoring the opposite of
the most recent enable/disable pcim_intx() argument, which was wrong
when a driver called pcim_intx() multiple times or with the already
enabled state (Takashi Iwai)
* tag 'pci-v6.14-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
PCI: Restore original INTX_DISABLE bit by pcim_intx()
Linus Torvalds [Fri, 31 Jan 2025 23:13:25 +0000 (15:13 -0800)]
Merge tag 'riscv-for-linus-6.14-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Palmer Dabbelt:
- The PH1520 pinctrl and dwmac drivers are enabeled in defconfig
- A redundant AQRL barrier has been removed from the futex cmpxchg
implementation
- Support for the T-Head vector extensions, which includes exposing
these extensions to userspace on systems that implement them
- Some more page table information is now printed on die() and systems
that cause PA overflows
* tag 'riscv-for-linus-6.14-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: add a warning when physical memory address overflows
riscv/mm/fault: add show_pte() before die()
riscv: Add ghostwrite vulnerability
selftests: riscv: Support xtheadvector in vector tests
selftests: riscv: Fix vector tests
riscv: hwprobe: Document thead vendor extensions and xtheadvector extension
riscv: hwprobe: Add thead vendor extension probing
riscv: vector: Support xtheadvector save/restore
riscv: Add xtheadvector instruction definitions
riscv: csr: Add CSR encodings for CSR_VXRM/CSR_VXSAT
RISC-V: define the elements of the VCSR vector CSR
riscv: vector: Use vlenb from DT for thead
riscv: Add thead and xtheadvector as a vendor extension
riscv: dts: allwinner: Add xtheadvector to the D1/D1s devicetree
dt-bindings: cpus: add a thead vlen register length property
dt-bindings: riscv: Add xtheadvector ISA extension description
RISC-V: Mark riscv_v_init() as __init
riscv: defconfig: drop RT_GROUP_SCHED=y
riscv/futex: Optimize atomic cmpxchg
riscv: defconfig: enable pinctrl and dwmac support for TH1520
Tomasz has reported that his device, Generalplus Technology Inc. 808 Camera,
with ID 1b3f:2002, stopped being detected:
$ ls -l /dev/video*
zsh: no matches found: /dev/video*
[ 7.230599] usb 3-2: Found multiple Units with ID 5
This particular device is non-compliant, having both the Output Terminal
and Processing Unit with ID 5. uvc_scan_fallback, though, is able to build
a chain. However, when media elements are added and uvc_mc_create_links
call uvc_entity_by_id, it will get the incorrect entity,
media_create_pad_link will WARN, and it will fail to register the entities.
In order to reinstate support for such devices in a timely fashion,
reverting the fix for these warnings is appropriate. A proper fix that
considers the existence of such non-compliant devices will be submitted in
a later development cycle.
Reported-by: Tomasz Sikora <sikora.tomus@gmail.com> Fixes: 3dd075fe8ebb ("media: uvcvideo: Require entities to have a non-zero unique ID") Cc: stable@vger.kernel.org Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Ricardo Ribalda <ribalda@chromium.org> Link: https://lore.kernel.org/r/20250114200045.1401644-1-cascardo@igalia.com Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Linus Torvalds [Fri, 31 Jan 2025 20:07:07 +0000 (12:07 -0800)]
Merge tag 'kbuild-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Support multiple hook locations for maint scripts of Debian package
- Remove 'cpio' from the build tool requirement
- Introduce gendwarfksyms tool, which computes CRCs for export symbols
based on the DWARF information
- Support CONFIG_MODVERSIONS for Rust
- Resolve all conflicts in the genksyms parser
- Fix several syntax errors in genksyms
* tag 'kbuild-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (64 commits)
kbuild: fix Clang LTO with CONFIG_OBJTOOL=n
kbuild: Strip runtime const RELA sections correctly
kconfig: fix memory leak in sym_warn_unmet_dep()
kconfig: fix file name in warnings when loading KCONFIG_DEFCONFIG_LIST
genksyms: fix syntax error for attribute before init-declarator
genksyms: fix syntax error for builtin (u)int*x*_t types
genksyms: fix syntax error for attribute after 'union'
genksyms: fix syntax error for attribute after 'struct'
genksyms: fix syntax error for attribute after abstact_declarator
genksyms: fix syntax error for attribute before nested_declarator
genksyms: fix syntax error for attribute before abstract_declarator
genksyms: decouple ATTRIBUTE_PHRASE from type-qualifier
genksyms: record attributes consistently for init-declarator
genksyms: restrict direct-declarator to take one parameter-type-list
genksyms: restrict direct-abstract-declarator to take one parameter-type-list
genksyms: remove Makefile hack
genksyms: fix last 3 shift/reduce conflicts
genksyms: fix 6 shift/reduce conflicts and 5 reduce/reduce conflicts
genksyms: reduce type_qualifier directly to decl_specifier
genksyms: rename cvar_qualifier to type_qualifier
...
Linus Torvalds [Fri, 31 Jan 2025 19:49:30 +0000 (11:49 -0800)]
Merge tag 'block-6.14-20250131' of git://git.kernel.dk/linux
Pull more block updates from Jens Axboe:
- MD pull request via Song:
- Fix a md-cluster regression introduced
- More sysfs race fixes
- Mark anything inside queue freezing as not being able to do IO for
memory allocations
- Fix for a regression introduced in loop in this merge window
- Fix for a regression in queue mapping setups introduced in this merge
window
- Fix for the block dio fops attempting an iov_iter revert upton
getting -EIOCBQUEUED on the read side. This one is going to stable as
well
* tag 'block-6.14-20250131' of git://git.kernel.dk/linux:
block: force noio scope in blk_mq_freeze_queue
block: fix nr_hw_queue update racing with disk addition/removal
block: get rid of request queue ->sysfs_dir_lock
loop: don't clear LO_FLAGS_PARTSCAN on LOOP_SET_STATUS{,64}
md/md-bitmap: Synchronize bitmap_get_stats() with bitmap lifetime
blk-mq: create correct map for fallback case
block: don't revert iter for -EIOCBQUEUED
Linus Torvalds [Fri, 31 Jan 2025 19:29:23 +0000 (11:29 -0800)]
Merge tag 'io_uring-6.14-20250131' of git://git.kernel.dk/linux
Pull more io_uring updates from Jens Axboe:
- Series cleaning up the alloc cache changes from this merge window,
and then another series on top making it better yet.
This also solves an issue with KASAN_EXTRA_INFO, by making io_uring
resilient to KASAN using parts of the freed struct for storage
- Cleanups and simplications to buffer cloning and io resource node
management
- Fix an issue introduced in this merge window where READ/WRITE_ONCE
was used on an atomic_t, which made some archs complain
- Fix for an errant connect retry when the socket has been shut down
- Fix for multishot and provided buffers
* tag 'io_uring-6.14-20250131' of git://git.kernel.dk/linux:
io_uring/net: don't retry connect operation on EPOLLERR
io_uring/rw: simplify io_rw_recycle()
io_uring: remove !KASAN guards from cache free
io_uring/net: extract io_send_select_buffer()
io_uring/net: clean io_msg_copy_hdr()
io_uring/net: make io_net_vec_assign() return void
io_uring: add alloc_cache.c
io_uring: dont ifdef io_alloc_cache_kasan()
io_uring: include all deps for alloc_cache.h
io_uring: fix multishots with selected buffers
io_uring/register: use atomic_read/write for sq_flags migration
io_uring/alloc_cache: get rid of _nocache() helper
io_uring: get rid of alloc cache init_once handling
io_uring/uring_cmd: cleanup struct io_uring_cmd_data layout
io_uring/uring_cmd: use cached cmd_op in io_uring_cmd_sock()
io_uring/msg_ring: don't leave potentially dangling ->tctx pointer
io_uring/rsrc: Move lockdep assert from io_free_rsrc_node() to caller
io_uring/rsrc: remove unused parameter ctx for io_rsrc_node_alloc()
io_uring: clean up io_uring_register_get_file()
io_uring/rsrc: Simplify buffer cloning by locking both rings
Masahiro Yamada [Fri, 31 Jan 2025 14:04:01 +0000 (23:04 +0900)]
kbuild: fix Clang LTO with CONFIG_OBJTOOL=n
Since commit bede169618c6 ("kbuild: enable objtool for *.mod.o and
additional kernel objects"), Clang LTO builds do not perform any
optimizations when CONFIG_OBJTOOL is disabled (e.g., for ARCH=arm64).
This is because every LLVM bitcode file is immediately converted to
ELF format before the object files are linked together.
This commit fixes the breakage.
Fixes: bede169618c6 ("kbuild: enable objtool for *.mod.o and additional kernel objects") Reported-by: Yonghong Song <yonghong.song@linux.dev> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Tested-by: Yonghong Song <yonghong.song@linux.dev>
Due to the fact that runtime const ELF sections are named without a
leading period or double underscore, the RSTRIP logic that removes the
static RELA sections from vmlinux fails to identify them. This results
in a situation like below, where some sections that were supposed to get
removed are left behind.
So tweak the match expression to strip all sections starting with .rel.
While at it, consolidate the logic used by RISC-V, s390 and x86 into a
single shared Makefile library command.
Linus Torvalds [Fri, 31 Jan 2025 19:07:56 +0000 (11:07 -0800)]
Merge tag 'ata-6.14-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull more ata updates from Niklas Cassel:
- Add ATA_QUIRK_NOLPM for Samsung SSD 870 QVO drives (Daniel)
- Ensure that PIO transfers using libata-sff cannot write outside the
allocated buffer (me)
* tag 'ata-6.14-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: libata-sff: Ensure that we cannot write outside the allocated buffer
ata: libata-core: Add ATA_QUIRK_NOLPM for Samsung SSD 870 QVO drives
cifs: Fix parsing native symlinks directory/file type
As SMB protocol distinguish between symlink to directory and symlink to
file, add some mechanism to disallow resolving incompatible types.
When SMB symlink is of the directory type, ensure that its target path ends
with slash. This forces Linux to not allow resolving such symlink to file.
And when SMB symlink is of the file type and its target path ends with
slash then returns an error as such symlink is unresolvable. Such symlink
always points to invalid location as file cannot end with slash.
As POSIX server does not distinguish between symlinks to file and symlink
directory, do not apply this change for symlinks from POSIX SMB server. For
POSIX SMB servers, this change does nothing.
This mimics Windows behavior of native SMB symlinks.
Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
This change implements support for creating new symlink in WSL-style by
Linux cifs client when -o reparse=wsl mount option is specified. WSL-style
symlink uses reparse point with tag IO_REPARSE_TAG_LX_SYMLINK and symlink
target location is stored in reparse buffer in UTF-8 encoding prefixed by
32-bit flags. Flags bits are unknown, but it was observed that WSL always
sets flags to value 0x02000000. Do same in Linux cifs client.
New symlinks would be created in WSL-style only in case the mount option
-o reparse=wsl is specified, which is not by default. So default CIFS
mounts are not affected by this change.
Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
Steve French [Tue, 28 Jan 2025 07:04:23 +0000 (01:04 -0600)]
smb3: add support for IAKerb
There are now more servers which advertise support for IAKerb (passthrough
Kerberos authentication via proxy). IAKerb is a public extension industry
standard Kerberos protocol that allows a client without line-of-sight
to a Domain Controller to authenticate. There can be cases where we
would fail to mount if the server only advertises the OID for IAKerb
in SPNEGO/GSSAPI. Add code to allow us to still upcall to userspace
in these cases to obtain the Kerberos ticket.
Signed-off-by: Steve French <stfrench@microsoft.com>
Pali Rohár [Sun, 29 Dec 2024 14:31:05 +0000 (15:31 +0100)]
cifs: Fix struct FILE_ALL_INFO
struct FILE_ALL_INFO for level 263 (0x107) used by QPathInfo does not have
any IndexNumber, AccessFlags, IndexNumber1, CurrentByteOffset, Mode or
AlignmentRequirement members. So remove all of them.
Also adjust code in move_cifs_info_to_smb2() function which converts struct
FILE_ALL_INFO to struct smb2_file_all_info.
Fixed content of struct FILE_ALL_INFO was verified that is correct against:
* [MS-CIFS] section 2.2.8.3.10 SMB_QUERY_FILE_ALL_INFO
* Samba server implementation of trans2 query file/path for level 263
* Packet structure tests against Windows SMB servers
This change fixes CIFSSMBQFileInfo() and CIFSSMBQPathInfo() functions which
directly copy received FILE_ALL_INFO network buffers into kernel structures
of FILE_ALL_INFO type.
struct FILE_ALL_INFO is the response structure returned by the SMB server.
So the incorrect definition of this structure can lead to returning bogus
information in stat() call.
Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
CIFS client is currently able to parse NFS-style symlinks, but is not able
to create them. This functionality is useful when the mounted SMB share is
used also by Windows NFS server (on Windows Server 2012 or new). It allows
interop of symlinks between SMB share mounted by Linux CIFS client and same
export from Windows NFS server mounted by some NFS client.
New symlinks would be created in NFS-style only in case the mount option
-o reparse=nfs is specified, which is not by default. So default CIFS
mounts are not affected by this change.
Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
cifs: Add support for creating native Windows sockets
Native Windows sockets created by WinSock on Windows 10 April 2018 Update
(version 1803) or Windows Server 2019 (version 1809) or later versions is
reparse point with IO_REPARSE_TAG_AF_UNIX tag, with empty reparse point
data buffer and without any EAs.
Create AF_UNIX sockets in this native format if -o nonativesocket was not
specified.
This change makes AF_UNIX sockets created by Linux CIFS client compatible
with AF_UNIX sockets created by Windows applications on NTFS volumes.
Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
Linus Torvalds [Fri, 31 Jan 2025 18:39:07 +0000 (10:39 -0800)]
Merge tag 'x86-mm-2025-01-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm updates from Ingo Molnar:
- The biggest changes are the TLB flushing scalability optimizations,
to update the mm_cpumask lazily and related changes.
This feature has both a track record and a continued risk of
performance regressions, so it was already delayed by a cycle - but
it's all 100% perfect now™ (Rik van Riel)
- Also miscellaneous fixes and cleanups. (Gautam Somani, Kirill
Shutemov, Sebastian Andrzej Siewior)
* tag 'x86-mm-2025-01-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Remove unnecessary include of <linux/extable.h>
x86/mtrr: Rename mtrr_overwrite_state() to guest_force_mtrr_state()
x86/mm/selftests: Fix typo in lam.c
x86/mm/tlb: Only trim the mm_cpumask once a second
x86/mm/tlb: Also remove local CPU from mm_cpumask if stale
x86/mm/tlb: Add tracepoint for TLB flush IPI to stale CPU
x86/mm/tlb: Update mm_cpumask lazily
Linus Torvalds [Fri, 31 Jan 2025 18:30:34 +0000 (10:30 -0800)]
Merge tag 'ceph-for-6.14-rc1' of https://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov:
"A fix for a memory leak from Antoine (marked for stable) and two
cleanups from Liang and Slava"
* tag 'ceph-for-6.14-rc1' of https://github.com/ceph/ceph-client:
ceph: exchange hardcoded value on NAME_MAX
ceph: streamline request head structures in MDS client
ceph: fix memory leak in ceph_mds_auth_match()
Linus Torvalds [Fri, 31 Jan 2025 17:33:54 +0000 (09:33 -0800)]
Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull hostfs fix from Al Viro:
"Fix hostfs __dentry_name() string handling.
The use of strcpy() with overlapping source and destination is a UB;
original loop hadn't been. More to the point, the whole thing is much
easier done with memcpy() + memmove()"
* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
hostfs: fix string handling in __dentry_name()
Linus Torvalds [Fri, 31 Jan 2025 17:17:02 +0000 (09:17 -0800)]
Merge tag 'sound-fix-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Here is a collection of fixes that have been gathered since the
previous pull request.
All about device-specific fixes and quirks, and most of them are
pretty small and trivial"
* tag 'sound-fix-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (25 commits)
ALSA: hda/realtek: Workaround for resume on Dell Venue 11 Pro 7130
ALSA: hda: Fix headset detection failure due to unstable sort
ALSA: pcm: use new array-copying-wrapper
ASoC: codec: es8316: "DAC Soft Ramp Rate" is just a 2 bit control
ASoC: amd: acp: Fix possible deadlock
firmware: cs_dsp: FW_CS_DSP_KUNIT_TEST should not select REGMAP
ALSA: usb-audio: Add delay quirk for iBasso DC07 Pro
ALSA: hda/realtek: Fix quirk matching for Legion Pro 7
ASoC: renesas: SND_SIU_MIGOR should depend on DMADEVICES
ASoC: Intel: bytcr_rt5640: Add DMI quirk for Vexia Edu Atla 10 tablet 5V
ASoC: da7213: Initialize the mutex
ASoC: use to_platform_device() instead of container_of()
ASoC: acp: Support microphone from Lenovo Go S
ASoC: SOF: imx8m: Add entry for new 8M Plus revision
ASoC: SOF: imx8: Add entries for new 8QM and 8QXP revisions
ASoC: SOF: imx: Add mach entry to select cs42888 topology
dt-bindings: arm: imx: Add board revisions for i.MX8MP, i.MX8QM and i.MX8QXP
ASoC: fsl_asrc_m2m: select CONFIG_DMA_SHARED_BUFFER
ASoC: audio-graph-card2: use correct endpoint when getting link parameters
ASoC: SOF: imx8m: add SAI2,5,6,7
...
When block drivers or the core block code perform allocations with a
frozen queue, this could try to recurse into the block device to
reclaim memory and deadlock. Thus all allocations done by a process
that froze a queue need to be done without __GFP_IO and __GFP_FS.
Instead of tying to track all of them down, force a noio scope as
part of freezing the queue.
Note that nvme is a bit of a mess here due to the non-owner freezes,
and they will be addressed separately.
Lin Yujun [Mon, 22 May 2023 02:56:08 +0000 (02:56 +0000)]
hexagon: Fix unbalanced spinlock in die()
die executes holding the spinlock of &die.lock and unlock
it after printing the oops message.
However in the code if the notify_die() returns NOTIFY_STOP
, die() exit with returning 1 but never unlocked the spinlock.
Fix this by adding spin_unlock_irq(&die.lock) before returning.
Fixes: cf9750bae262 ("Hexagon: Provide basic debugging and system trap support.") Signed-off-by: Lin Yujun <linyujun809@huawei.com> Link: https://lore.kernel.org/r/20230522025608.2515558-1-linyujun809@huawei.com Signed-off-by: Brian Cain <bcain@quicinc.com> Signed-off-by: Brian Cain <brian.cain@oss.qualcomm.com>
projects / thirdparty / linux.git / log
