In the current implementation, the last_issue and last_comp members of
struct rq_wb are used only by read requests and not by non-throttled write
requests. Therefore, eliminate the ambiguity here.
Signed-off-by: Tang Yizhou <yizhou.tang@shopee.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20250727173959.160835-3-yizhou.tang@shopee.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
In the current implementation, the sync_cookie and last_cookie members of
struct rq_wb are used only by read requests and not by non-throttled write
requests. Based on this, we can optimize wbt_done() by removing one if
condition check for non-throttled write requests.
Signed-off-by: Tang Yizhou <yizhou.tang@shopee.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20250727173959.160835-2-yizhou.tang@shopee.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
In the qcom_spi_ecc_init_ctx_pipelined() function, the 'clrflashstatus'
and the 'clrreadstatus' members of the ECC context gets initialized with
constant values. Then these values are used by several functions to set
the corresponding members in the register cache.
Because the values are never modified, change the code to set the those
directly in the register cache by the qcom_spi_ecc_init_ctx_pipelined()
function, and remove the repetitive code from the other functions to
reduce code duplication.
Also, remove the respective members from the 'qpic_ecc' structure as
those became unused due to the change.
No functional changes intended.
Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
Link: https://patch.msgid.link/20250810-qpic-snand-qpic_ecc-cleanup-v1-2-33a6b2bcbc67@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The 'dev' member of the 'qpic_ecc' structure is never used in the
code so remove that.
No functional changes.
Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://patch.msgid.link/20250810-qpic-snand-qpic_ecc-cleanup-v1-1-33a6b2bcbc67@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The infineon,ir38060 binding never got maintainer and fake "Not Me"
entry have been causing dt_binding_check warnings for 1.5 years now:
regulator/infineon,ir38060.yaml: maintainers:0: 'Not Me.' does not match '@'
Guenter agreed to keep an eye for this hardware and binding.
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Conor Dooley <conor.dooley@microchip.com>
Cc: Andrew Jeffery <andrew@codeconstruct.com.au>
Cc: Ninad Palsule <ninad@linux.ibm.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://patch.msgid.link/20250811141526.168752-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
In order to maintain code consistency and readability,
skb_to_full_sk() is used to get full socket from skb.
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Acked-by: Stephen Smalley <stephen.smalley.work@gmail.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
This is unused since commit a3d3043ef2 ("selinux: get netif_wildcard
policycap from policy instead of cache").
Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Acked-by: Stephen Smalley <stephen.smalley.work@gmail.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Commit cec199c5e3 ("futex: Implement FUTEX2_NUMA") introduced the
futex_put_value() helper to write a value to the given user
address.
However, it uses user_read_access_begin() before the write. For
architectures that differentiate between read and write accesses, like
PowerPC, futex_put_value() fails with -EFAULT.
Fix that by using the user_write_access_begin/user_write_access_end() pair
instead.
Fixes: cec199c5e3 ("futex: Implement FUTEX2_NUMA")
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/20250811141147.322261-1-longman@redhat.com
When no audit rules are in place, fanotify event results are
unconditionally dropped due to an explicit check for the existence of
any audit rules. Given this is a report from another security
sub-system, allow it to be recorded regardless of the existence of any
audit rules.
To test, install and run the fapolicyd daemon with default config. Then
as an unprivileged user, create and run a very simple binary that should
be denied. Then check for an event with
ausearch -m FANOTIFY -ts recent
Link: https://issues.redhat.com/browse/RHEL-9065
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Correct the misspelling of "searching" (was "serarching")
in the function documentation for audit_update_lsm_rules.
Found via code inspection, no functional impact.
Signed-off-by: Kieran Moy <kfatyuip@gmail.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
strcpy() is deprecated; use strscpy() instead.
Link: https://github.com/KSPP/linux/issues/88
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Fix two indentation errors in audit_log_exit().
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
[PM: subject tweak]
Signed-off-by: Paul Moore <paul@paul-moore.com>
GPUVM deserves a bit more coordination, also given the upcoming Rust
work for GPUVM, hence add a dedicated maintainers entry for DRM GPUVM.
Cc: Boris Brezillon <boris.brezillon@collabora.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Alice Ryhl <aliceryhl@google.com>
Acked-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Acked-by: Matthew Brost <matthew.brost@intel.com>
Acked-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20250808092432.461250-1-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
The SRSO bug can theoretically be used to conduct user->user or guest->guest
attacks and requires a mitigation (namely IBPB instead of SBPB on context
switch) for these. So mark SRSO as being applicable to the user->user and
guest->guest attack vectors.
Additionally, SRSO supports multiple mitigations which mitigate different
potential attack vectors. Some CPUs are also immune to SRSO from
certain attack vectors (like user->kernel).
Use the specific attack vectors requiring mitigation to select the best
SRSO mitigation to avoid unnecessary performance hits.
Signed-off-by: David Kaplan <david.kaplan@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/20250721160310.1804203-1-david.kaplan@amd.com
The current iosys_map_clear() implementation reads the potentially
uninitialized 'is_iomem' boolean field to decide which union member
to clear. This causes undefined behavior when called on uninitialized
structures, as 'is_iomem' may contain garbage values like 0xFF.
UBSAN detects this as:
UBSAN: invalid-load in include/linux/iosys-map.h:267
load of value 255 is not a valid value for type '_Bool'
Fix by unconditionally clearing the entire structure with memset(),
eliminating the need to read uninitialized data and ensuring all
fields are set to known good values.
Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/14639
Fixes: 01fd30da04 ("dma-buf: Add struct dma-buf-map for storing struct dma_buf.vaddr_ptr")
Signed-off-by: Nitin Gote <nitin.r.gote@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250718105051.2709487-1-nitin.r.gote@intel.com
Fix failures on big-endian architectures on tests cases
single_pixel_source_buffer, single_pixel_clip_rectangle,
well_known_colors and destination_pitch.
Fixes: 15bda1f8de ("drm/tests: Add calls to drm_fb_blit() on supported format conversion tests")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250630090054.353246-2-jose.exposito89@gmail.com
When compiling with sparse enabled, this warning is thrown:
warning: incorrect type in argument 2 (different base types)
expected restricted __le32 const [usertype] *buf
got unsigned int [usertype] *[assigned] buf
Add a cast to fix it.
Fixes: 4531143196 ("drm/format-helper: Add KUnit tests for drm_fb_xrgb8888_to_xrgb2101010()")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250630090054.353246-1-jose.exposito89@gmail.com
The debug logging in gud_disconnect() adds zero detail and is
unnecessary, as it only prints the function name.
The same functionality can be achieved by using ftrace, and is
highlighted by checkpatch, stating the same.
This patch removes the debug log in the gud_disconnect() function.
Signed-off-by: Ruben Wauters <rubenru09@aol.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250721232210.12578-1-rubenru09@aol.com
fw_name in qcom_mdt_bins_are_split() seems unused now, it may have
used in the past for logging it but due to code refactor this parameter
is unused now.
Signed-off-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com>
Reviewed-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250807074311.2381713-3-mukesh.ojha@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
pas id is not used in qcom_mdt_load_no_init() and it should not
be used as it is non-PAS specific function and has no relation
to PAS specific mechanism.
Reviewed-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Acked-by: Jeff Johnson <jjohnson@kernel.org> # drivers/net/wireless/ath/ath12k/ahb.c
Signed-off-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250807074311.2381713-2-mukesh.ojha@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
commit f4e526ff7e ("soc: qcom: mdt_loader: Extract PAS
operations") move pas specific code from __qcom_mdt_load()
to a separate function qcom_mdt_pas_init() after which the
pas_init variable became unused in __qcom_mdt_load().
Remove pas_init argument from __qcom_mdt_load().
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250807074311.2381713-1-mukesh.ojha@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
GCC 16 enables -Werror=unused-but-set-variable= which results in build
error with the following message.
drivers/gpu/drm/radeon/r600_cs.c: In function ‘r600_texture_size’:
drivers/gpu/drm/radeon/r600_cs.c:1411:29: error: variable ‘level’ set but not used [-Werror=unused-but-set-variable=]
1411 | unsigned offset, i, level;
| ^~~~~
cc1: all warnings being treated as errors
make[6]: *** [scripts/Makefile.build:287: drivers/gpu/drm/radeon/r600_cs.o] Error 1
level although is set, but in never used in the function
r600_texture_size. Thus resulting in dead code and this error getting
triggered.
Fixes: 60b212f8dd ("drm/radeon: overhaul texture checking. (v3)")
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Brahmajit Das <listout@listout.xyz>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Comments should not have a leading plus sign.
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Cryolitia PukNgae <cryolitia@uniontech.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This version brings along following update:
-Fix close and open lid may cause eDP remaining blank
-Fix frequently disabling/enabling OTG may cause incorrect
configuration of OTG
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Taimur Hassan <Syed.Hassan@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
When qcom_scm_assign_mem() fails, the error value is currently being
overwritten after it is logged, resulting in the loss of the original
error code. Fix this by retaining and returning the original error value
as intended.
Signed-off-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250807124451.2623019-1-mukesh.ojha@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Add a new command for Panel Replay.
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Taimur Hassan <Syed.Hassan@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[WHY&HOW]
The user closed the lid while the system was powering on and opened it
again before the “apply_seamless_boot_optimization” was set to false,
resulting in the eDP remaining blank.
Reset the “apply_seamless_boot_optimization” to false when dpms off.
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Danny Wang <Danny.Wang@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
Customer reported an issue that OS starts and stops device multiple times
during driver installation. Frequently disabling and enabling OTG may
prevent OTG from being safely disabled and cause incorrect configuration
upon the next enablement.
[How]
Add a wait until OTG_CURRENT_MASTER_EN_STATE is cleared as a short term
solution.
Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: TungYu Lu <tungyu.lu@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
User queues are disabled before GEM objects are released
(protecting against user app crashes).
No races with PCI hot-unplug (because drm_dev_enter prevents cleanup
if iewdevice is being removed).
Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Vitaly Prosyak <vitaly.prosyak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
During a DPC error kernel waits for the link to be active before
notifying downstream devices. On certain platforms with Broadcom switch
in synthetiic mode, switch responds with values even though the link is
not fully ready. The config space restoration done by pcie port driver
for SWUS/DS of dGPU is thus not effective as the switch is still doing
internal enumeration.
As a workaround, save state of SWUS/DS device in driver. Add additional
check to see if link is active and restore the values during DPC error
callbacks.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
CPU on Qualcomm ipq5424 is clocked by huayra PLL with RCG support.
Add support for the APSS PLL, RCG and clock enable for ipq5424.
The PLL, RCG register space are clubbed. Hence adding new APSS driver
for both PLL and RCG/CBC control. Also the L3 cache has a separate pll
and needs to be scaled along with the CPU and is modeled as an ICC clock.
[ Removed clock notifier, moved L3 pll to icc-clk, used existing
alpha pll structure ]
Co-developed-by: Md Sadre Alam <quic_mdalam@quicinc.com>
Signed-off-by: Md Sadre Alam <quic_mdalam@quicinc.com>
Signed-off-by: Sricharan Ramabadhran <quic_srichara@quicinc.com>
Signed-off-by: Varadarajan Narayanan <quic_varada@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250811090954.2854440-3-quic_varada@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
The CPU core in ipq5424 is clocked by a huayra PLL with RCG support.
The RCG and PLL have a separate register space from the GCC.
Also the L3 cache has a separate pll and needs to be scaled along
with the CPU.
Co-developed-by: Md Sadre Alam <quic_mdalam@quicinc.com>
Signed-off-by: Md Sadre Alam <quic_mdalam@quicinc.com>
Signed-off-by: Sricharan Ramabadhran <quic_srichara@quicinc.com>
[ Added interconnect related changes ]
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Varadarajan Narayanan <quic_varada@quicinc.com>
Link: https://lore.kernel.org/r/20250811090954.2854440-2-quic_varada@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Transition the USB controllers found in the SM8650 SoC to the newly
introduced, flattened representation of the Qualcomm USB block.
The reg and interrupts properties from the usb child node are merged
with their counterpart in the outer node, remaining properties and child
nodes are simply moved.
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250811-topic-sm8x50-usb-flatten-v2-2-0bbb3ac292e4@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Transition the USB controllers found in the SM8550 SoC to the newly
introduced, flattened representation of the Qualcomm USB block.
The reg and interrupts properties from the usb child node are merged
with their counterpart in the outer node, remaining properties and child
nodes are simply moved.
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250811-topic-sm8x50-usb-flatten-v2-1-0bbb3ac292e4@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
All our PCI ID macros match on the PCI class besides the vendor and
devid, even for devices that may or may not have display. This may not
work going forward, so add a simple INTEL_PCI_DEVICE that matches only
on vendor/device IDs.
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://lore.kernel.org/r/20250808-intel-pci-device-v1-1-ce3545d86502@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Clamp writes to power limits powerX_crit/currX_crit, powerX_cap,
powerX_max, to the maximum supported by the pcode mailbox
when sysfs-provided values exceed this limit.
Although the pcode already performs clamping, values beyond the pcode
mailbox's supported range get truncated, leading to incorrect
critical power settings.
This patch ensures proper clamping to prevent such truncation.
v2:
- Address below review comments. (Riana)
- Split comments into multiple sentences.
- Use local variables for readability.
- Add a debug log.
- Use u64 instead of unsigned long.
v3:
- Change drm_dbg logs to drm_info. (Badal)
v4:
- Rephrase the drm_info log. (Rodrigo, Riana)
- Rename variable max_mbx_power_limit to max_supp_power_limit, as
limit is same for platforms with and without mailbox power limit
support.
Signed-off-by: Karthik Poosa <karthik.poosa@intel.com>
Fixes: 92d44a422d ("drm/xe/hwmon: Expose card reactive critical power")
Fixes: fb1b70607f ("drm/xe/hwmon: Expose power attributes")
Reviewed-by: Riana Tauro <riana.tauro@intel.com>
Link: https://lore.kernel.org/r/20250808185310.3466529-1-karthik.poosa@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
- A correctness fix for delegated timestamps
- Address an NFSD shutdown hang when LOCALIO is in use
- Prevent a remotely exploitable crasher when TLS is in use
These arrived too late to be included in the initial nfsd-6.17
pull request.
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Merge tag 'nfsd-6.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd fixes from Chuck Lever:
- A correctness fix for delegated timestamps
- Address an NFSD shutdown hang when LOCALIO is in use
- Prevent a remotely exploitable crasher when TLS is in use
* tag 'nfsd-6.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
sunrpc: fix handling of server side tls alerts
nfsd: avoid ref leak in nfsd_open_local_fh()
nfsd: don't set the ctime on delegated atime updates
Selects RZ/T2H (aka r9a09g077) SCI (serial) specific code, as used on
the RZ/T2H and RZ/N2H EVKs.
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Thierry Bultel <thierry.bultel.yh@bp.renesas.com>
Link: https://lore.kernel.org/20250515141828.43444-11-thierry.bultel.yh@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add a PCI quirk to enable microphone input on the headphone jack on
the HONOR BRB-X M1010 laptop.
Signed-off-by: Vasiliy Kovalev <kovalev@altlinux.org>
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20250811132716.45076-1-kovalev@altlinux.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Christoph suggested that the explicit _GPL_ can be dropped from the
module namespace export macro, as it's intended for in-tree modules
only. It would be possible to restrict it technically, but it was
pointed out [2] that some cases of using an out-of-tree build of an
in-tree module with the same name are legitimate. But in that case those
also have to be GPL anyway so it's unnecessary to spell it out in the
macro name.
Link: https://lore.kernel.org/all/aFleJN_fE-RbSoFD@infradead.org/ [1]
Link: https://lore.kernel.org/all/CAK7LNATRkZHwJGpojCnvdiaoDnP%2BaeUXgdey5sb_8muzdWTMkA@mail.gmail.com/ [2]
Suggested-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Shivank Garg <shivankg@amd.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Nicolas Schier <n.schier@avm.de>
Reviewed-by: Daniel Gomez <da.gomez@samsung.com>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Link: https://lore.kernel.org/20250808-export_modules-v4-1-426945bcc5e1@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>
The lflags value used to look up from_path was overwritten by the one used
to look up to_path.
In other words, from_path was looked up with the wrong lflags value. Fix it.
Fixes: f9fde814de ("fs: support getname_maybe_null() in move_mount()")
Signed-off-by: Yuntao Wang <yuntao.wang@linux.dev>
Link: https://lore.kernel.org/20250811052426.129188-1-yuntao.wang@linux.dev
[Christian Brauner <brauner@kernel.org>: massage patch]
Signed-off-by: Christian Brauner <brauner@kernel.org>
Device-mapper can call add_disk() multiple times for the same gendisk
due to its two-phase creation process (dm create + dm load). This leads
to kobject double initialization errors when the underlying iSCSI devices
become temporarily unavailable and then reappear.
However, if the first add_disk() call fails and is retried, the queue_kobj
gets initialized twice, causing:
kobject: kobject (ffff88810c27bb90): tried to init an initialized object,
something is seriously wrong.
Call Trace:
<TASK>
dump_stack_lvl+0x5b/0x80
kobject_init.cold+0x43/0x51
blk_register_queue+0x46/0x280
add_disk_fwnode+0xb5/0x280
dm_setup_md_queue+0x194/0x1c0
table_load+0x297/0x2d0
ctl_ioctl+0x2a2/0x480
dm_ctl_ioctl+0xe/0x20
__x64_sys_ioctl+0xc7/0x110
do_syscall_64+0x72/0x390
entry_SYSCALL_64_after_hwframe+0x76/0x7e
Fix this by separating kobject initialization from sysfs registration:
- Initialize queue_kobj early during gendisk allocation
- add_disk() only adds the already-initialized kobject to sysfs
- del_gendisk() removes from sysfs but doesn't destroy the kobject
- Final cleanup happens when the disk is released
Fixes: 2bd85221a6 ("block: untangle request_queue refcounting from sysfs")
Reported-by: Li Lingfeng <lilingfeng3@huawei.com>
Closes: https://lore.kernel.org/all/83591d0b-2467-433c-bce0-5581298eb161@huawei.com/
Signed-off-by: Zheng Qixing <zhengqixing@huawei.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Nilay Shroff <nilay@linux.ibm.com>
Link: https://lore.kernel.org/r/20250808053609.3237836-1-zhengqixing@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Commit 16f5dfbc85 ("gfp: include __GFP_NOWARN in GFP_NOWAIT") made
GFP_NOWAIT implicitly include __GFP_NOWARN.
Therefore, explicit __GFP_NOWARN combined with GFP_NOWAIT (e.g.,
`GFP_NOWAIT | __GFP_NOWARN`) is now redundant. Let's clean up these
redundant flags across subsystems.
Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20250809141358.168781-1-rongqianfeng@vivo.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Commit 16f5dfbc85 ("gfp: include __GFP_NOWARN in GFP_NOWAIT") made
GFP_NOWAIT implicitly include __GFP_NOWARN.
Therefore, explicit __GFP_NOWARN combined with GFP_NOWAIT (e.g.,
`GFP_NOWAIT | __GFP_NOWARN`) is now redundant. Let's clean up these
redundant flags across subsystems.
Reviewed-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Link: https://lore.kernel.org/r/20250811081135.374315-1-rongqianfeng@vivo.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Commit ab03a61c66 ("ublk: have a per-io daemon instead of a per-queue
daemon") allowed each ublk I/O to have an independent daemon task.
However, nr_privileged_daemon is only computed based on whether the last
I/O fetched in each ublk queue has an unprivileged daemon task.
Fix this by checking whether every fetched I/O's daemon is privileged.
Change nr_privileged_daemon from a count of queues to a boolean
indicating whether any I/Os have an unprivileged daemon.
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Fixes: ab03a61c66 ("ublk: have a per-io daemon instead of a per-queue daemon")
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250808155216.296170-1-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
