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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull misc vfs updates from Christian Brauner:
"This contains the usual miscellaneous features, cleanups, and fixes
for vfs and individual fses.
Features:
- Add Jan Kara as VFS reviewer
- Show correct device and inode numbers in proc/<pid>/maps for vma
files on stacked filesystems. This is now easily doable thanks to
the backing file work from the last cycles. This comes with
selftests
Cleanups:
- Remove a redundant might_sleep() from wait_on_inode()
- Initialize pointer with NULL, not 0
- Clarify comment on access_override_creds()
- Rework and simplify eventfd_signal() and eventfd_signal_mask()
helpers
- Process aio completions in batches to avoid needless wakeups
- Completely decouple struct mnt_idmap from namespaces. We now only
keep the actual idmapping around and don't stash references to
namespaces
- Reformat maintainer entries to indicate that a given subsystem
belongs to fs/
- Simplify fput() for files that were never opened
- Get rid of various pointless file helpers
- Rename various file helpers
- Rename struct file members after SLAB_TYPESAFE_BY_RCU switch from
last cycle
- Make relatime_need_update() return bool
- Use GFP_KERNEL instead of GFP_USER when allocating superblocks
- Replace deprecated ida_simple_*() calls with their current ida_*()
counterparts
Fixes:
- Fix comments on user namespace id mapping helpers. They aren't
kernel doc comments so they shouldn't be using /**
- s/Retuns/Returns/g in various places
- Add missing parameter documentation on can_move_mount_beneath()
- Rename i_mapping->private_data to i_mapping->i_private_data
- Fix a false-positive lockdep warning in pipe_write() for watch
queues
- Improve __fget_files_rcu() code generation to improve performance
- Only notify writer that pipe resizing has finished after setting
pipe->max_usage otherwise writers are never notified that the pipe
has been resized and hang
- Fix some kernel docs in hfsplus
- s/passs/pass/g in various places
- Fix kernel docs in ntfs
- Fix kcalloc() arguments order reported by gcc 14
- Fix uninitialized value in reiserfs"
* tag 'vfs-6.8.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (36 commits)
reiserfs: fix uninit-value in comp_keys
watch_queue: fix kcalloc() arguments order
ntfs: dir.c: fix kernel-doc function parameter warnings
fs: fix doc comment typo fs tree wide
selftests/overlayfs: verify device and inode numbers in /proc/pid/maps
fs/proc: show correct device and inode numbers in /proc/pid/maps
eventfd: Remove usage of the deprecated ida_simple_xx() API
fs: super: use GFP_KERNEL instead of GFP_USER for super block allocation
fs/hfsplus: wrapper.c: fix kernel-doc warnings
fs: add Jan Kara as reviewer
fs/inode: Make relatime_need_update return bool
pipe: wakeup wr_wait after setting max_usage
file: remove __receive_fd()
file: stop exposing receive_fd_user()
fs: replace f_rcuhead with f_task_work
file: remove pointless wrapper
file: s/close_fd_get_file()/file_close_fd()/g
Improve __fget_files_rcu() code generation (and thus __fget_light())
file: massage cleanup of files that failed to open
fs/pipe: Fix lockdep false-positive in watchqueue pipe_write()
...
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__put_unaligned_be24() and friends use implicit casts to convert
larger-sized data to bytes, which trips sparse truncation warnings when
the argument is a constant:
CC [M] drivers/input/touchscreen/hynitron_cstxxx.o
CHECK drivers/input/touchscreen/hynitron_cstxxx.c
drivers/input/touchscreen/hynitron_cstxxx.c: note: in included file (through arch/x86/include/generated/asm/unaligned.h):
include/asm-generic/unaligned.h:119:16: warning: cast truncates bits from constant value (aa01a0 becomes a0)
include/asm-generic/unaligned.h:120:20: warning: cast truncates bits from constant value (aa01 becomes 1)
include/asm-generic/unaligned.h:119:16: warning: cast truncates bits from constant value (ab00d0 becomes d0)
include/asm-generic/unaligned.h:120:20: warning: cast truncates bits from constant value (ab00 becomes 0)
To avoid this let's mask off upper bits explicitly, the resulting code
should be exactly the same, but it will keep sparse happy.
Reported-by: kernel test robot <lkp@intel.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Closes: https://lore.kernel.org/oe-kbuild-all/202401070147.gqwVulOn-lkp@intel.com/
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge system-wide power management updates for 6.8-rc1:
- Fix possible deadlocks in the core system-wide PM code that occur if
device-handling functions cannot be executed asynchronously during
resune from system-wide suspend (Rafael J. Wysocki).
- Clean up unnecessary local variable initializations in multiple
places in the hibernation code (Wang chaodong, Li zeming).
- Adjust core hibernation code to avoid missing wakeup events that
occur after saving an image to persistent storage (Chris Feng).
- Update hibernation code to enforce correct ordering during image
compression and decompression (Hongchen Zhang).
- Use kmap_local_page() instead of kmap_atomic() in copy_data_page()
during hibernation and restore (Chen Haonan).
- Adjust documentation and code comments to reflect recent task freezer
changes (Kevin Hao).
- Repair excess function parameter description warning in the
hibernation image-saving code (Randy Dunlap).
* pm-sleep:
PM: sleep: Fix possible deadlocks in core system-wide PM code
async: Introduce async_schedule_dev_nocall()
async: Split async_schedule_node_domain()
PM: hibernate: Repair excess function parameter description warning
PM: sleep: Remove obsolete comment from unlock_system_sleep()
Documentation: PM: Adjust freezing-of-tasks.rst to the freezer changes
PM: hibernate: Use kmap_local_page() in copy_data_page()
PM: hibernate: Enforce ordering during image compression/decompression
PM: hibernate: Avoid missing wakeup events during hibernation
PM: hibernate: Do not initialize error in snapshot_write_next()
PM: hibernate: Do not initialize error in swap_write_page()
PM: hibernate: Drop unnecessary local variable initialization
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Merge cpuidle, cpufreq and devfreq updates for 6.8-rc1:
- Add support for the Sierra Forest, Grand Ridge and Meteorlake SoCs to
the intel_idle cpuidle driver (Artem Bityutskiy, Zhang Rui).
- Do not enable interrupts when entering idle in the haltpoll cpuidle
driver (Borislav Petkov).
- Add Emerald Rapids support in no-HWP mode to the intel_pstate cpufreq
driver (Zhenguo Yao).
- Use EPP values programmed by the platform firmware as balance
performance ones by default in intel_pstate (Srinivas Pandruvada).
- Add a missing function return value check to the SCMI cpufreq driver
to avoid unexpected behavior (Alexandra Diupina).
- Fix parameter type warning in the armada-8k cpufreq driver (Gregory
CLEMENT).
- Rework trans_stat_show() in the devfreq core code to avoid buffer
overflows (Christian Marangi).
- Synchronize devfreq_monitor_[start/stop] so as to prevent a timer
list corruption from occurring when devfreq governors are switched
frequently (Mukesh Ojha).
* pm-cpuidle:
cpuidle: haltpoll: Do not enable interrupts when entering idle
intel_idle: add Sierra Forest SoC support
intel_idle: add Grand Ridge SoC support
intel_idle: Add Meteorlake support
* pm-cpufreq:
cpufreq: intel_pstate: Add Emerald Rapids support in no-HWP mode
cpufreq: armada-8k: Fix parameter type warning
cpufreq: scmi: process the result of devm_of_clk_add_hw_provider()
cpufreq: intel_pstate: Prioritize firmware-provided balance performance EPP
* pm-devfreq:
PM / devfreq: Synchronize devfreq_monitor_[start/stop]
PM / devfreq: Convert to use sysfs_emit_at() API
PM / devfreq: Fix buffer overflow in trans_stat_show
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git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm into pm-opp
Merge OPP (Operating Performance Points) updates for 6.8 from Viresh
Kumar:
"- Fix _set_required_opps when opp is NULL (Bryan O'Donoghue).
- ti: Use device_get_match_data() (Rob Herring).
- Minor cleanups around OPP level and other parts and call
dev_pm_opp_set_opp() recursively for required OPPs (Viresh Kumar)."
* tag 'opp-updates-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
OPP: Rename 'rate_clk_single'
OPP: Pass rounded rate to _set_opp()
OPP: Relocate dev_pm_opp_sync_regulators()
OPP: Move dev_pm_opp_icc_bw to internal opp.h
OPP: Fix _set_required_opps when opp is NULL
OPP: The level field is always of unsigned int type
OPP: Check for invalid OPP in dev_pm_opp_find_level_ceil()
OPP: Don't set OPP recursively for a parent genpd
OPP: Call dev_pm_opp_set_opp() for required OPPs
OPP: Use _set_opp_level() for single genpd case
OPP: Level zero is valid
opp: ti: Use device_get_match_data()
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for the v6.8 merge window
This fix didn't make it upstream in time, pick it up
for the v6.8 merge window.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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can still use the lock object after it's unlocked
Clarify the mutex lock lifetime rules a bit more.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Jann Horn <jannh@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20231201121808.GL3818@noisy.programming.kicks-ass.net
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"Improve the detection when to run atomic transfer handlers for kernels
with preemption disabled. This removes some false positive splats a
number of users were seeing if their driver didn't have support for
atomic transfers.
Also, fix a typo in the docs while we are here"
* tag 'i2c-for-6.7-final' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: core: Fix atomic xfer check for non-preempt config
Documentation/i2c: fix spelling error in i2c-address-translators
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Since commit aa49c90894d0 ("i2c: core: Run atomic i2c xfer when
!preemptible"), the whole reboot/power off sequence on non-preempt kernels
is using atomic i2c xfer, as !preemptible() always results to 1.
During device_shutdown(), the i2c might be used a lot and not all busses
have implemented an atomic xfer handler. This results in a lot of
avoidable noise, like:
[ 12.687169] No atomic I2C transfer handler for 'i2c-0'
[ 12.692313] WARNING: CPU: 6 PID: 275 at drivers/i2c/i2c-core.h:40 i2c_smbus_xfer+0x100/0x118
...
Fix this by allowing non-atomic xfer when the interrupts are enabled, as
it was before.
Link: https://lore.kernel.org/r/20231222230106.73f030a5@yea
Link: https://lore.kernel.org/r/20240102150350.3180741-1-mwalle@kernel.org
Link: https://lore.kernel.org/linux-i2c/13271b9b-4132-46ef-abf8-2c311967bb46@mailbox.org/
Fixes: aa49c90894d0 ("i2c: core: Run atomic i2c xfer when !preemptible")
Cc: stable@vger.kernel.org # v5.2+
Signed-off-by: Benjamin Bara <benjamin.bara@skidata.com>
Tested-by: Michael Walle <mwalle@kernel.org>
Tested-by: Tor Vic <torvic9@mailbox.org>
[wsa: removed a comment which needs more work, code is ok]
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc mm fixes from Andrew Morton:
"12 hotfixes.
Two are cc:stable and the remainder either address post-6.7 issues or
aren't considered necessary for earlier kernel versions"
* tag 'mm-hotfixes-stable-2024-01-05-11-35' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm: shrinker: use kvzalloc_node() from expand_one_shrinker_info()
mailmap: add entries for Mathieu Othacehe
MAINTAINERS: change vmware.com addresses to broadcom.com
arch/mm/fault: fix major fault accounting when retrying under per-VMA lock
mm/mglru: skip special VMAs in lru_gen_look_around()
MAINTAINERS: hand over hwpoison maintainership to Miaohe Lin
MAINTAINERS: remove hugetlb maintainer Mike Kravetz
mm: fix unmap_mapping_range high bits shift bug
mm: memcg: fix split queue list crash when large folio migration
mm: fix arithmetic for max_prop_frac when setting max_ratio
mm: fix arithmetic for bdi min_ratio
mm: align larger anonymous mappings on THP boundaries
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git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd fix from Chuck Lever:
- Fix another regression in the NFSD administrative API
* tag 'nfsd-6.7-3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
nfsd: drop the nfsd_put helper
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git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire fix from Takashi Sakamoto:
"A single patch to suppress unexpected system reboot in AMD Ryzen
machines with PCIe card consisting of Asmedia ASM1083/1085 and
VT6306/6307/6308.
When the 1394 OHCI driver for the card accesses a specific register
in PCI memory space, the system reboot often occurs.
The issue affects all versions of Linux kernel as long as the 1394
OHCI driver is included. The mechanism of unexpected system reboot is
not clear, so the driver is changed to avoid the access itself when
detecting the combination of hardware"
* tag 'firewire-fixes-6.7-final' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
firewire: ohci: suppress unexpected system reboot in AMD Ryzen machines and ASM108x/VT630x PCIe cards
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"MMC core:
- Fix releasing the host by canceling the delayed work
- Fix pause retune on all RPMB partitions
MMC host:
- meson-mx-sdhc: Fix HW hang during card initialization
- sdhci-sprd: Fix eMMC init failure after HW reset"
* tag 'mmc-v6.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: sdhci-sprd: Fix eMMC init failure after hw reset
mmc: core: Cancel delayed work before releasing host
mmc: rpmb: fixes pause retune on all RPMB partitions.
mmc: meson-mx-sdhc: Fix initialization frozen issue
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Pull more drm fixes from Dave Airlie:
"The amdgpu ones are fairly normal, the one that is a bit large is a
fix for a newly introduced IP in 6.7 so unlikely to cause regressions.
The nouveau ones are mostly memory leaks and debugging cleanups from
the GSP (new nvidia firmware) enablement. There are some GSP changes
to the message passing code and a subsequent fix for eDP panel turn
on, that means my laptop can turn on the panel in GSP mode. These are
fairly low chance of disrupting things since GSP is new in 6.7. The
final not all in GSP fix is a deadlock seen with i915/nouveau when GSP
is used where the the fence and irq paths have locking inversions,
I've pushed some irq enablement out to a workqueue, and this has seen
some fairly decent testing.
amdgpu:
- DP MST fix
- SMU 13.0.6 fixes
- fix displays on macbooks using vega12
- fix VSC and colorimetry on DP/eDP
nouveau:
- fix deadlock between fence signalling and irq paths
- fix GSP memory leaks
- fix GSP leftover debug
- hide some GSP callback messages
- fix GSP display disable path
- fix GSP ACPI interaction
- handle errors in ctrl messages
- use errors info to fix DP link training"
* tag 'drm-fixes-2024-01-05' of git://anongit.freedesktop.org/drm/drm:
drm/nouveau/dp: Honor GSP link training retry timeouts
nouveau: push event block/allowing out of the fence context
nouveau/gsp: always free the alloc messages on r535
nouveau/gsp: don't free ctrl messages on errors
nouveau/gsp: convert gsp errors to generic errors
drm/nouveau/gsp: Fix ACPI MXDM/MXDS method invocations
nouveau/gsp: free userd allocation.
nouveau/gsp: free acpi object after use
nouveau: fix disp disabling with GSP
nouveau/gsp: drop some acpi related debug
nouveau/gsp: add three notifier callbacks that we see in normal operation (v2)
drm/amd/pm: Use gpu_metrics_v1_5 for SMUv13.0.6
drm/amd/pm: Add gpu_metrics_v1_5
drm/amd/pm: Add mem_busy_percent for GCv9.4.3 apu
drm/amd/display: Fix sending VSC (+ colorimetry) packets for DP/eDP displays without PSR
drm/amdgpu: skip gpu_info fw loading on navi12
drm/amd/display: add nv12 bounding box
drm/amd/pm: Update metric table for jpeg/vcn data
drm/amd/pm: Use separate metric table for APU
drm/amd/display: pbn_div need be updated for hotplug event
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The purpose of crash_exclude_mem_range() is to remove all memory ranges
that overlap with [mstart-mend]. However, the current logic only removes
the first overlapping memory range.
Commit a2e9a95d2190 ("kexec: Improve & fix crash_exclude_mem_range() to
handle overlapping ranges") attempted to address this issue, but it did
not fix all error cases.
Let's fix and simplify the logic of crash_exclude_mem_range().
Link: https://lkml.kernel.org/r/20240102144905.110047-4-ytcoode@gmail.com
Signed-off-by: Yuntao Wang <ytcoode@gmail.com>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Borislav Petkov (AMD) <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Hari Bathini <hbathini@linux.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Sourabh Jain <sourabhjain@linux.ibm.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Use SZ_1M macro instead of hardcoded 1<<20 to make code more readable.
Link: https://lkml.kernel.org/r/20240102144905.110047-3-ytcoode@gmail.com
Signed-off-by: Yuntao Wang <ytcoode@gmail.com>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Borislav Petkov (AMD) <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Hari Bathini <hbathini@linux.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Sourabh Jain <sourabhjain@linux.ibm.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Patch series "crash: Some cleanups and fixes", v2.
This patchset includes two cleanups and one fix.
This patch (of 3):
The image parameter is no longer in use, remove it. Also, tidy up the
code formatting.
Link: https://lkml.kernel.org/r/20240102144905.110047-1-ytcoode@gmail.com
Link: https://lkml.kernel.org/r/20240102144905.110047-2-ytcoode@gmail.com
Signed-off-by: Yuntao Wang <ytcoode@gmail.com>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Borislav Petkov (AMD) <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Hari Bathini <hbathini@linux.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Sourabh Jain <sourabhjain@linux.ibm.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Add a test for UFFDIO_MOVE ioctl operating on a hugepage which has to be
split because destination is marked with MADV_NOHUGEPAGE. With this we
cover all 3 cases: normal page move, hugepage move, hugepage splitting
before move.
Link: https://lkml.kernel.org/r/20231230025636.2477429-1-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Brian Geffon <bgeffon@google.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jann Horn <jannh@google.com>
Cc: Kalesh Singh <kaleshsingh@google.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Lokesh Gidra <lokeshgidra@google.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Nicolas Geoffray <ngeoffray@google.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: ZhangPeng <zhangpeng362@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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The test depends on writing to nr_hugepages which isn't possible without
root privileges. So skip the test in this case.
Link: https://lkml.kernel.org/r/20240101083614.1076768-2-usama.anjum@collabora.com
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Conform the layout, informational and status messages to TAP. No
functional change is intended other than the layout of output messages.
Link: https://lkml.kernel.org/r/20240101083614.1076768-1-usama.anjum@collabora.com
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Conform the layout, informational and status messages to TAP. No
functional change is intended other than the layout of output messages.
Link: https://lkml.kernel.org/r/20240102053223.2099572-1-usama.anjum@collabora.com
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Conform the layout, informational and status messages to TAP. No
functional change is intended other than the layout of output messages.
Link: https://lkml.kernel.org/r/20240102053807.2114200-1-usama.anjum@collabora.com
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Conform the layout, informational and status messages to TAP. No
functional change is intended other than the layout of output messages.
Link: https://lkml.kernel.org/r/20240102081919.2325570-1-usama.anjum@collabora.com
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Demotion can work well without CONFIG_NUMA_BALANCING. But the commit
23e9f0138963 ("mm/vmstat: move pgdemote_* to per-node stats") wrongly hid
it behind CONFIG_NUMA_BALANCING.
Fix it by moving them out of CONFIG_NUMA_BALANCING.
Link: https://lkml.kernel.org/r/20231229022651.3229174-1-lizhijian@fujitsu.com
Fixes: 23e9f0138963 ("mm/vmstat: move pgdemote_* to per-node stats")
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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too large
This is the case the "compressed" data is larger than the original data,
it is better to return -ENOSPC which can help zswap record a poor compr
rather than an invalid request. Then we get more friendly counting for
reject_compress_poor in debugfs.
bool zswap_store(struct folio *folio)
{
...
ret = zpool_malloc(zpool, dlen, gfp, &handle);
if (ret == -ENOSPC) {
zswap_reject_compress_poor++;
goto put_dstmem;
}
if (ret) {
zswap_reject_alloc_fail++;
goto put_dstmem;
}
...
}
Also, zbud_alloc() and z3fold_alloc() are returning ENOSPC in the same
case, eg
static int z3fold_alloc(struct z3fold_pool *pool, size_t size, gfp_t gfp,
unsigned long *handle)
{
...
if (!size || (gfp & __GFP_HIGHMEM))
return -EINVAL;
if (size > PAGE_SIZE)
return -ENOSPC;
...
}
Link: https://lkml.kernel.org/r/20231228061802.25280-1-v-songbaohua@oppo.com
Signed-off-by: Barry Song <v-songbaohua@oppo.com>
Reviewed-by: Chengming Zhou <zhouchengming@bytedance.com>
Reviewed-by: Nhat Pham <nphamcs@gmail.com>
Acked-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Chris Li <chrisl@kernel.org>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Seth Jennings <sjenning@redhat.com>
Cc: Vitaly Wool <vitaly.wool@konsulko.com>
Cc: Yosry Ahmed <yosryahmed@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
There are no more callers of __mod_lruvec_page_state(), so convert the
implementation to __lruvec_stat_mod_folio(), removing two calls to
compound_head() (one explicit, one hidden inside page_memcg()).
Link: https://lkml.kernel.org/r/20231228085748.1083901-7-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Acked-by: Shakeel Butt <shakeelb@google.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
This function is not yet fully converted to the folio API, but this
removes a few uses of old APIs.
Link: https://lkml.kernel.org/r/20231228085748.1083901-6-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Mirror the code in free_large_kmalloc() and alloc_pages_node() and use a
folio directly. Avoid the use of folio_alloc() as that will set up an
rmappable folio which we do not want here.
Link: https://lkml.kernel.org/r/20231228085748.1083901-5-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: David Rientjes <rientjes@google.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Save a few calls to compound_head() by using the folio APIs directly.
Link: https://lkml.kernel.org/r/20231228085748.1083901-4-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: David Rientjes <rientjes@google.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
For no apparent reason, we were open-coding alloc_pages_node() in this
function.
Link: https://lkml.kernel.org/r/20231228085748.1083901-3-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Patch series "Remove some lruvec page accounting functions", v2.
Some functions are now unused; remove them. Make
__mod_lruvec_page_state() unused and then remove it.
This patch (of 6):
All callers of these have been converted to their folio equivalents.
Link: https://lkml.kernel.org/r/20231228085748.1083901-1-willy@infradead.org
Link: https://lkml.kernel.org/r/20231228085748.1083901-2-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
One of our workloads (Postgres 14 + sysbench OLTP) regressed on newer
upstream kernel and on further investigation, it seems like the cause is
the always synchronous rstat flush in the count_shadow_nodes() added by
the commit f82e6bf9bb9b ("mm: memcg: use rstat for non-hierarchical
stats"). On further inspection it seems like we don't really need
accurate stats in this function as it was already approximating the amount
of appropriate shadow entries to keep for maintaining the refault
information. Since there is already 2 sec periodic rstat flush, we don't
need exact stats here. Let's ratelimit the rstat flush in this code path.
Link: https://lkml.kernel.org/r/20231228073055.4046430-1-shakeelb@google.com
Fixes: f82e6bf9bb9b ("mm: memcg: use rstat for non-hierarchical stats")
Signed-off-by: Shakeel Butt <shakeelb@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Yosry Ahmed <yosryahmed@google.com>
Cc: Yu Zhao <yuzhao@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Commit 773688a6cb24 ("kasan: use stack_depot_put for Generic mode") added
support for stack trace eviction for Generic KASAN.
However, that commit didn't evict stack traces when the object is not put
into quarantine. As a result, some stack traces are never evicted from
the stack depot.
In addition, with the "kasan: save mempool stack traces" series, the free
stack traces for mempool objects are also not properly evicted from the
stack depot.
Fix both issues by:
1. Evicting all stack traces when an object if freed if it was not put
into quarantine;
2. Always evicting an existing free stack trace when a new one is saved.
Also do a few related clean-ups:
- Do not zero out free track when initializing/invalidating free meta:
set a value in shadow memory instead;
- Rename KASAN_SLAB_FREETRACK to KASAN_SLAB_FREE_META;
- Drop the kasan_init_cache_meta function as it's not used by KASAN;
- Add comments for the kasan_alloc_meta and kasan_free_meta structs.
[akpm@linux-foundation.org: make release_free_meta() and release_alloc_meta() static]
Link: https://lkml.kernel.org/r/20231226225121.235865-1-andrey.konovalov@linux.dev
Fixes: 773688a6cb24 ("kasan: use stack_depot_put for Generic mode")
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Marco Elver <elver@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Improve code readability by removing CONFIG_TRANSPARENT_HUGEPAGE,
since the compiler should be able to automatically optimize out the
code that promotes THPs during page table walks.
No functional changes.
Link: https://lkml.kernel.org/r/20231227141205.2200125-6-kinseyho@google.com
Signed-off-by: Kinsey Ho <kinseyho@google.com>
Co-developed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Tested-by: Donet Tom <donettom@linux.vnet.ibm.com>
Acked-by: Yu Zhao <yuzhao@google.com>
Cc: kernel test robot <lkp@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Add dummy pmd_dirty() for architectures that don't provide it.
This is similar to commit 6617da8fb565 ("mm: add dummy pmd_young()
for architectures not having it").
Link: https://lkml.kernel.org/r/20231227141205.2200125-5-kinseyho@google.com
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202312210606.1Etqz3M4-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202312210042.xQEiqlEh-lkp@intel.com/
Signed-off-by: Kinsey Ho <kinseyho@google.com>
Suggested-by: Yu Zhao <yuzhao@google.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Donet Tom <donettom@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Remove CONFIG_MEMCG in a refactoring to improve code readability at
the cost of a few bytes in struct lru_gen_folio per node when
CONFIG_MEMCG=n.
Link: https://lkml.kernel.org/r/20231227141205.2200125-4-kinseyho@google.com
Signed-off-by: Kinsey Ho <kinseyho@google.com>
Co-developed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Tested-by: Donet Tom <donettom@linux.vnet.ibm.com>
Acked-by: Yu Zhao <yuzhao@google.com>
Cc: kernel test robot <lkp@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Add CONFIG_LRU_GEN_WALKS_MMU such that if disabled, the code that
walks page tables to promote pages into the youngest generation will
not be built.
Also improves code readability by adding two helper functions
get_mm_state() and get_next_mm().
Link: https://lkml.kernel.org/r/20231227141205.2200125-3-kinseyho@google.com
Signed-off-by: Kinsey Ho <kinseyho@google.com>
Co-developed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Tested-by: Donet Tom <donettom@linux.vnet.ibm.com>
Acked-by: Yu Zhao <yuzhao@google.com>
Cc: kernel test robot <lkp@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Patch series "mm/mglru: Kconfig cleanup", v4.
This series is the result of the following discussion:
https://lore.kernel.org/47066176-bd93-55dd-c2fa-002299d9e034@linux.ibm.com/
It mainly avoids building the code that walks page tables on CPUs that
use it, i.e., those don't support hardware accessed bit. Specifically,
it introduces a new Kconfig to guard some of functions added by
commit bd74fdaea146 ("mm: multi-gen LRU: support page table walks")
on CPUs like POWER9, on which the series was tested.
This patch (of 5):
Some architectures are able to set the accessed bit in PTEs when PTEs
are used as part of linear address translations.
Add CONFIG_ARCH_HAS_HW_PTE_YOUNG for such architectures to be able to
override arch_has_hw_pte_young().
Link: https://lkml.kernel.org/r/20231227141205.2200125-1-kinseyho@google.com
Link: https://lkml.kernel.org/r/20231227141205.2200125-2-kinseyho@google.com
Signed-off-by: Kinsey Ho <kinseyho@google.com>
Co-developed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Tested-by: Donet Tom <donettom@linux.vnet.ibm.com>
Acked-by: Yu Zhao <yuzhao@google.com>
Cc: kernel test robot <lkp@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Unfortunately, vm_insert_page() and friends and up passing
driver-allocated folios into folio_add_file_rmap_pte() using
insert_page_into_pte_locked().
While these driver-allocated folios can be compound pages (large folios),
they are not proper "rmappable" folios.
In these VM_MIXEDMAP VMAs, there isn't really the concept of a reverse
mapping, so long-term, we should clean that up and not call into rmap
code.
For the time being, document how we can end up in rmap code with large
folios that are not marked rmappable.
Link: https://lkml.kernel.org/r/793c5cee-d5fc-4eb1-86a2-39e05686233d@redhat.com
Fixes: 68f0320824fa ("mm/rmap: convert folio_add_file_rmap_range() into folio_add_file_rmap_[pte|ptes|pmd]()")
Reported-by: syzbot+50ef73537bbc393a25bb@syzkaller.appspotmail.com
Closes: https://lkml.kernel.org/r/000000000000014174060e09316e@google.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Yin Fengwei <fengwei.yin@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
While testing the split PMD path with lockdep enabled I've got an "Invalid
wait context" error caused by split_huge_page_to_list() trying to lock
anon_vma->rwsem while inside RCU read section. The issues is due to
move_pages_pte() calling split_folio() under RCU read lock. Fix this by
unmapping the PTEs and exiting RCU read section before splitting the folio
and then retrying. The same retry pattern is used when locking the folio
or anon_vma in this function. After splitting the large folio we unlock
and release it because after the split the old folio might not be the one
that contains the src_addr.
Link: https://lkml.kernel.org/r/20240102233256.1077959-1-surenb@google.com
Fixes: adef440691ba ("userfaultfd: UFFDIO_MOVE uABI")
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Brian Geffon <bgeffon@google.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jann Horn <jannh@google.com>
Cc: Kalesh Singh <kaleshsingh@google.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Lokesh Gidra <lokeshgidra@google.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Nicolas Geoffray <ngeoffray@google.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: ZhangPeng <zhangpeng362@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
If try_to_free_buffers() succeeded and then folio_alloc_buffers() failed,
grow_dev_folio() would return success. This would be incorrect; memory
allocation failure is supposed to result in a failure. It's a harmless
bug; the caller will simply go around the loop one more time and
grow_dev_folio() will correctly return a failure that time. But it was an
unintended change and looks like a more serious bug than it is.
While I'm in here, improve the commentary about why we return success even
though we failed.
Link: https://lkml.kernel.org/r/20240101093848.2017115-1-willy@infradead.org
Fixes: 6d840a18773f ("buffer: return bool from grow_dev_folio()")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reported-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
syzbot is reporting uninit-value at shrinker_alloc(), for commit
307bececcd12 ("mm: shrinker: add a secondary array for
shrinker_info::{map, nr_deferred}") which assumed that the ->unit was
allocated with __GFP_ZERO forgot to replace kvmalloc_node() in
expand_one_shrinker_info() with kvzalloc_node().
Link: https://lkml.kernel.org/r/9226cc0a-10e0-4489-80c5-58c3b5b4359c@I-love.SAKURA.ne.jp
Reported-by: syzbot <syzbot+1e0ed05798af62917464@syzkaller.appspotmail.com>
Closes: https://syzkaller.appspot.com/bug?extid=1e0ed05798af62917464
Fixes: 307bececcd12 ("mm: shrinker: add a secondary array for shrinker_info::{map, nr_deferred}")
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"These are two correctness fixes for handing DT input in the
Allwinner (sunxi) SMP startup code"
* tag 'soc-fixes-6.7-3a' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: sun9i: smp: fix return code check of of_property_match_string
ARM: sun9i: smp: Fix array-index-out-of-bounds read in sunxi_mc_smp_init
|
|
Pull kvm fix from Paolo Bonzini:
- Fix boolean logic in intel_guest_get_msrs
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86/pmu: fix masking logic for MSR_CORE_PERF_GLOBAL_CTRL
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull kprobes/x86 fix from Masami Hiramatsu:
- Fix to emulate indirect call which size is not 5 byte.
Current code expects the indirect call instructions are 5 bytes, but
that is incorrect. Usually indirect call based on register is shorter
than that, thus the emulation causes a kernel crash by accessing
wrong instruction boundary. This uses the instruction size to
calculate the return address correctly.
* tag 'probes-fixes-v6.7-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
x86/kprobes: fix incorrect return address calculation in kprobe_emulate_call_indirect
|
|
Pull smb client fixes from Steve French:
"Three important multichannel smb3 client fixes found in recent
testing:
- fix oops due to incorrect refcounting of interfaces after
disabling multichannel
- fix possible unrecoverable session state after disabling
multichannel with active sessions
- fix two places that were missing use of chan_lock"
* tag '6.7-rc8-smb3-mchan-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: do not depend on release_iface for maintaining iface_list
cifs: cifs_chan_is_iface_active should be called with chan_lock held
cifs: after disabling multichannel, mark tcon for reconnect
|
|
Merge changes in thermal control drivers for Intel platforms for
6.8-rc1:
- Make the Intel HFI thermal driver enable an HFI instance (eg. processor
package) from its first online CPU and disable it when the last CPU in
it goes offline (Ricardo Neri).
* thermal-intel:
thermal: intel: hfi: Disable an HFI instance when all its CPUs go offline
thermal: intel: hfi: Enable an HFI instance from its first online CPU
thermal: intel: hfi: Refactor enabling code into helper functions
|
|
ASM108x/VT630x PCIe cards
VIA VT6306/6307/6308 provides PCI interface compliant to 1394 OHCI. When
the hardware is combined with Asmedia ASM1083/1085 PCIe-to-PCI bus bridge,
it appears that accesses to its 'Isochronous Cycle Timer' register (offset
0xf0 on PCI memory space) often causes unexpected system reboot in any
type of AMD Ryzen machine (both 0x17 and 0x19 families). It does not
appears in the other type of machine (AMD pre-Ryzen machine, Intel
machine, at least), or in the other OHCI 1394 hardware (e.g. Texas
Instruments).
The issue explicitly appears at a commit dcadfd7f7c74 ("firewire: core:
use union for callback of transaction completion") added to v6.5 kernel.
It changed 1394 OHCI driver to access to the register every time to
dispatch local asynchronous transaction. However, the issue exists in
older version of kernel as long as it runs in AMD Ryzen machine, since
the access to the register is required to maintain bus time. It is not
hard to imagine that users experience the unexpected system reboot when
generating bus reset by plugging any devices in, or reading the register
by time-aware application programs; e.g. audio sample processing.
This commit suppresses the unexpected system reboot in the combination of
hardware. It avoids the access itself. As a result, the software stack can
not provide the hardware time anymore to unit drivers, userspace
applications, and nodes in the same IEEE 1394 bus. It brings apparent
disadvantage since time-aware application programs require it, while
time-unaware applications are available again; e.g. sbp2.
Cc: stable@vger.kernel.org
Reported-by: Jiri Slaby <jirislaby@kernel.org>
Closes: https://bugzilla.suse.com/show_bug.cgi?id=1215436
Reported-by: Mario Limonciello <mario.limonciello@amd.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217994
Reported-by: Tobias Gruetzmacher <tobias-lists@23.gs>
Closes: https://sourceforge.net/p/linux1394/mailman/message/58711901/
Closes: https://bugzilla.redhat.com/show_bug.cgi?id=2240973
Closes: https://bugs.launchpad.net/linux/+bug/2043905
Link: https://lore.kernel.org/r/20240102110150.244475-1-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
|
|
The field's name isn't clear enough. Rename it.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
|
