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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- A fix to avoid dropping some of the internal pseudo-extensions, which
breaks *envcfg dependency parsing
- The kernel entry address is now aligned in purgatory, which avoids a
misaligned load that can lead to crash on systems that don't support
misaligned accesses early in boot
- The FW_SFENCE_VMA_RECEIVED perf event was duplicated in a handful of
perf JSON configurations, one of them been updated to
FW_SFENCE_VMA_ASID_SENT
- The starfive cache driver is now restricted to 64-bit systems, as it
isn't 32-bit clean
- A fix for to avoid aliasing legacy-mode perf counters with software
perf counters
- VM_FAULT_SIGSEGV is now handled in the page fault code
- A fix for stalls during CPU hotplug due to IPIs being disabled
- A fix for memblock bounds checking. This manifests as a crash on
systems with discontinuous memory maps that have regions that don't
fit in the linear map
* tag 'riscv-for-linus-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Fix linear mapping checks for non-contiguous memory regions
RISC-V: Enable the IPI before workqueue_online_cpu()
riscv/mm: Add handling for VM_FAULT_SIGSEGV in mm_fault_error()
perf: riscv: Fix selecting counters in legacy mode
cache: StarFive: Require a 64-bit system
perf arch events: Fix duplicate RISC-V SBI firmware event name
riscv/purgatory: align riscv_kernel_entry
riscv: cpufeature: Do not drop Linux-internal extensions
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into HEAD
KVM/riscv fixes for 6.11, take #1
- Fix compile error in get-reg-list selftests
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- remove unused empty CPU alternatives header file
- fix recently and erroneously removed exception handling when loading
an invalid floating point register
- ptdump fixes to reflect the recent changes due to the uncoupling of
physical vs virtual kernel address spaces
- changes to avoid the unnecessary splitting of large pages in kernel
mappings
- add the missing MODULE_DESCRIPTION for the CIO modules
* tag 's390-6.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390: Keep inittext section writable
s390/vmlinux.lds.S: Move ro_after_init section behind rodata section
s390/mm: Get rid of RELOC_HIDE()
s390/mm/ptdump: Improve sorting of markers
s390/mm/ptdump: Add support for relocated lowcore mapping
s390/mm/ptdump: Fix handling of identity mapping area
s390/cio: Add missing MODULE_DESCRIPTION() macros
s390/alternatives: Remove unused empty header file
s390/fpu: Re-add exception handling in load_fpu_state()
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The current "nretries > 1 || nretries >= max_retries" check in
cs_watchdog_read() will always evaluate to true, and thus pr_warn(), if
nretries is greater than 1. The intent is instead to never warn on the
first try, but otherwise warn if the successful retry was the last retry.
Therefore, change that "||" to "&&".
Fixes: db3a34e17433 ("clocksource: Retry clock read if long delays detected")
Reported-by: Borislav Petkov <[email protected]>
Signed-off-by: Paul E. McKenney <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/all/[email protected]
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic fixes from Arnd Bergmann:
"These are three important bug fixes for the cross-architecture tree,
fixing a regression with the new syscall.tbl file, the inconsistent
numbering for the new uretprobe syscall and a bug with iowrite64be on
alpha"
* tag 'asm-generic-fixes-6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
syscalls: fix syscall macros for newfstat/newfstatat
uretprobe: change syscall number, again
alpha: fix ioread64be()/iowrite64be() helpers
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A small collection of fixes:
- Revert of FireWire changes that caused a long-time regression
- Another long-time regression fix for AMD HDMI
- MIDI2 UMP fixes
- HD-audio Conexant codec fixes and a quirk"
* tag 'sound-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda: Conditionally use snooping for AMD HDMI
ALSA: usb-audio: Correct surround channels in UAC1 channel map
ALSA: seq: ump: Explicitly reset RPN with Null RPN
ALSA: seq: ump: Transmit RPN/NRPN message at each MSB/LSB data reception
ALSA: seq: ump: Use the common RPN/bank conversion context
ALSA: ump: Explicitly reset RPN with Null RPN
ALSA: ump: Transmit RPN/NRPN message at each MSB/LSB data reception
Revert "ALSA: firewire-lib: operate for period elapse event in process context"
Revert "ALSA: firewire-lib: obsolete workqueue for period update"
ALSA: hda/realtek: Add quirk for Acer Aspire E5-574G
ALSA: seq: ump: Optimize conversions from SysEx to UMP
ALSA: hda/conexant: Mute speakers at suspend / shutdown
ALSA: hda/generic: Add a helper to mute speakers at suspend/shutdown
ALSA: hda: conexant: Fix headset auto detect fail in the polling mode
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Pull drm fixes from Dave Airlie:
"Regular weekly fixes. This is a bit larger than usual but doesn't seem
too crazy.
Most of it is vmwgfx changes that fix a bunch of issues with wayland
userspaces with dma-buf/external buffers and modesetting fixes.
Otherwise it's kinda spread out, v3d fixes some new ioctls, nouveau
has regression revert and fixes, amdgpu, i915 and ast have some small
fixes, and some core fixes spread about.
client:
- fix error code
atomic:
- allow damage clips with async flips
- allow explicit sync with async flips
kselftests:
- fix dmabuf-heaps test
panic:
- fix schedule_work in panic paths
panel:
- fix OrangePi Neo orientation
gpuvm:
- fix missing dependency
amdgpu:
- SMU 14.x update
- Fix contiguous VRAM handling for IB parsing
- GFX 12 fix
- Regression fix for old APUs
i915:
- Static analysis fix for int overflow
- Fix for HDCP2_STREAM_STATUS macro and removal of PWR_CLK_STATE for gen12
nouveau:
- revert busy wait change that caused a resume regression
- fix buffer placement fault on dynamic pm s/r
- fix refcount underflow
ast:
- fix black screen on resume
- wake during connector status detect
v3d:
- fix issues with perf/timestamp ioctls
vmwgfx:
- fix deadlock in dma-buf fence polling
- fix screen surface refcounting
- fix dumb buffer handling
- fix support for external buffers
- fix overlay with screen targets
- trigger modeset on screen moves"
* tag 'drm-fixes-2024-08-02' of https://gitlab.freedesktop.org/drm/kernel: (31 commits)
Revert "nouveau: rip out busy fence waits"
nouveau: set placement to original placement on uvmm validate.
drm/atomic: Allow userspace to use damage clips with async flips
drm/atomic: Allow userspace to use explicit sync with atomic async flips
drm/i915: Fix possible int overflow in skl_ddi_calculate_wrpll()
drm/i915/hdcp: Fix HDCP2_STREAM_STATUS macro
drm/ast: astdp: Wake up during connector status detection
i915/perf: Remove code to update PWR_CLK_STATE for gen12
kselftests: dmabuf-heaps: Ensure the driver name is null-terminated
drm/client: Fix error code in drm_client_buffer_vmap_local()
drm/amdgpu: Fix APU handling in amdgpu_pm_load_smu_firmware()
drm/amdgpu: increase mes log buffer size for gfx12
drm/amdgpu: fix contiguous handling for IB parsing v2
drm/amdgpu/pm: support gpu_metrics sysfs interface for smu v14.0.2/3
drm/vmwgfx: Trigger a modeset when the screen moves
drm/vmwgfx: Fix overlay when using Screen Targets
drm/vmwgfx: Add basic support for external buffers
drm/vmwgfx: Fix handling of dumb buffers
drm/vmwgfx: Make sure the screen surface is ref counted
drm/vmwgfx: Fix a deadlock in dma buf fence polling
...
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To 2.50
Signed-off-by: Steve French <[email protected]>
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NetApp server requires the file to be open with FILE_READ_EA access in
order to support FSCTL_GET_REPARSE_POINT, otherwise it will return
STATUS_INVALID_DEVICE_REQUEST. It doesn't make any sense because
there's no requirement for FILE_READ_EA bit to be set nor
STATUS_INVALID_DEVICE_REQUEST being used for something other than
"unsupported reparse points" in MS-FSA.
To fix it and improve compatibility, set FILE_READ_EA & SYNCHRONIZE
bits to match what Windows client currently does.
Tested-by: Sebastian Steinbeisser <[email protected]>
Acked-by: Tom Talpey <[email protected]>
Signed-off-by: Paulo Alcantara (Red Hat) <[email protected]>
Signed-off-by: Steve French <[email protected]>
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For debugging an umount failure in xfstests generic/043 generic/044 in some
configurations, we needed more information on the shutdown ioctl which
was suspected of being related to the cause, so tracepoints are added
in this patch e.g.
"trace-cmd record -e smb3_shutdown_enter -e smb3_shutdown_done -e smb3_shutdown_err"
Sample output:
godown-47084 [011] ..... 3313.756965: smb3_shutdown_enter: flags=0x1 tid=0x733b3e75
godown-47084 [011] ..... 3313.756968: smb3_shutdown_done: flags=0x1 tid=0x733b3e75
Tested-by: Anthony Nandaa (Microsoft) <[email protected]>
Signed-off-by: Steve French <[email protected]>
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Remove struct cifs_aio_ctx and its associated alloc/release functions as it
is no longer used, the functions being taken over by netfslib.
Signed-off-by: David Howells <[email protected]>
cc: Steve French <[email protected]>
cc: [email protected]
Signed-off-by: Steve French <[email protected]>
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As per MS-FSA 2.1.5.10.14, support for FSCTL_GET_REPARSE_POINT is
optional and if the server doesn't support it,
STATUS_INVALID_DEVICE_REQUEST must be returned for the operation.
If we find files with reparse points and we can't read them due to
lack of client or server support, just ignore it and then treat them
as regular files or junctions.
Fixes: 5f71ebc41294 ("smb: client: parse reparse point flag in create response")
Reported-by: Sebastian Steinbeisser <[email protected]>
Tested-by: Sebastian Steinbeisser <[email protected]>
Acked-by: Tom Talpey <[email protected]>
Signed-off-by: Paulo Alcantara (Red Hat) <[email protected]>
Signed-off-by: Steve French <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fix from Damien Le Moal:
- Add missing power-domains property to the device tree bindings for
the Rockchip Designware AHCI adapter (from Heiko)
* tag 'ata-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
dt-bindings: ata: rockchip-dwc-ahci: add missing power-domains
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Pull vfs fix from Al Viro:
"do_dup2() out-of-bounds array speculation fix"
* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
protect the fetch of ->fd[fd] in do_dup2() from mispredictions
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Although the Arm architecture permits concurrent modification and
execution of NOP and branch instructions, it still requires some
synchronisation to ensure that other CPUs consistently execute the newly
written instruction:
> When the modified instructions are observable, each PE that is
> executing the modified instructions must execute an ISB or perform a
> context synchronizing event to ensure execution of the modified
> instructions
Prior to commit f6cc0c501649 ("arm64: Avoid calling stop_machine() when
patching jump labels"), the arm64 jump_label patching machinery
performed synchronisation using stop_machine() after each modification,
however this was problematic when flipping static keys from atomic
contexts (namely, the arm_arch_timer CPU hotplug startup notifier) and
so we switched to the _nosync() patching routines to avoid "scheduling
while atomic" BUG()s during boot.
In hindsight, the analysis of the issue in f6cc0c501649 isn't quite
right: it cites the use of IPIs in the default patching routines as the
cause of the lockup, whereas stop_machine() does not rely on IPIs and
the I-cache invalidation is performed using __flush_icache_range(),
which elides the call to kick_all_cpus_sync(). In fact, the blocking
wait for other CPUs is what triggers the BUG() and the problem remains
even after f6cc0c501649, for example because we could block on the
jump_label_mutex. Eventually, the arm_arch_timer driver was fixed to
avoid the static key entirely in commit a862fc2254bd
("clocksource/arm_arch_timer: Remove use of workaround static key").
This all leaves the jump_label patching code in a funny situation on
arm64 as we do not synchronise with other CPUs to reduce the likelihood
of a bug which no longer exists. Consequently, toggling a static key on
one CPU cannot be assumed to take effect on other CPUs, leading to
potential issues, for example with missing preempt notifiers.
Rather than revert f6cc0c501649 and go back to stop_machine() for each
patch site, implement arch_jump_label_transform_apply() and kick all
the other CPUs with an IPI at the end of patching.
Cc: Alexander Potapenko <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Marc Zyngier <[email protected]>
Fixes: f6cc0c501649 ("arm64: Avoid calling stop_machine() when patching jump labels")
Signed-off-by: Will Deacon <[email protected]>
Reviewed-by: Catalin Marinas <[email protected]>
Reviewed-by: Marc Zyngier <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>
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The __NR_newfstat and __NR_newfstatat macros accidentally got renamed
in the conversion to the syscall.tbl format, dropping the 'new' portion
of the name.
In an unrelated change, the two syscalls are no longer architecture
specific but are once more defined on all 64-bit architectures, so the
'newstat' ABI keyword can be dropped from the table as a simplification.
Fixes: Fixes: 4fe53bf2ba0a ("syscalls: add generic scripts/syscall.tbl")
Closes: https://lore.kernel.org/lkml/[email protected]/T/#t
Reported-by: Florian Weimer <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>
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Despite multiple attempts to get the syscall number assignment right
for the newly added uretprobe syscall, we ended up with a bit of a mess:
- The number is defined as 467 based on the assumption that the
xattrat family of syscalls would use 463 through 466, but those
did not make it into 6.11.
- The include/uapi/asm-generic/unistd.h file still lists the number
463, but the new scripts/syscall.tbl that was supposed to have the
same data lists 467 instead as the number for arc, arm64, csky,
hexagon, loongarch, nios2, openrisc and riscv. None of these
architectures actually provide a uretprobe syscall.
- All the other architectures (powerpc, arm, mips, ...) don't list
this syscall at all.
There are two ways to make it consistent again: either list it with
the same syscall number on all architectures, or only list it on x86
but not in scripts/syscall.tbl and asm-generic/unistd.h.
Based on the most recent discussion, it seems like we won't need it
anywhere else, so just remove the inconsistent assignment and instead
move the x86 number to the next available one in the architecture
specific range, which is 335.
Fixes: 5c28424e9a34 ("syscalls: Fix to add sys_uretprobe to syscall.tbl")
Fixes: 190fec72df4a ("uprobe: Wire up uretprobe system call")
Fixes: 63ded110979b ("uprobe: Change uretprobe syscall scope and number")
Acked-by: Masami Hiramatsu (Google) <[email protected]>
Reviewed-by: Jiri Olsa <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>
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The microphone/speaker privacy shutter ALSA control handlers need to
call pm_runtime_resume, since the hardware needs to be powered up to
check the hardware state of the shutter. The IRQ handler for the
shutters also needs to notify the ALSA control to inform user-space
the shutters updated. However this leads to a mutex inversion,
between the sdw_dev_lock and the controls_rwsem.
To avoid this mutex inversion cache the kctl pointers before the IRQ
handler, which avoids the need to lookup the control and take the
controls_rwsem.
Suggested-by: Jaroslav Kysela <[email protected]>
Signed-off-by: Charles Keepax <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>
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No longer any need to hard code the addition of the name prefix, use the
new helper function.
Signed-off-by: Charles Keepax <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>
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Add new helper functions snd_soc_component_get_kcontrol() and
snd_soc_component_get_kcontrol_locked() that returns a kcontrol
by name, but will factor in the components name_prefix, to handle
situations where multiple components are present with the same
controls.
Signed-off-by: Charles Keepax <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>
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Signed-off-by: Charles Keepax <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>
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On Intel Emerald Rapids machines, we ship the Energy Performance Preference
(EPP) default for balance_performance as 128. However, during an internal
investigation together with Intel, we have determined that 32 is a more
suitable value. This leads to significant improvements in both performance
and energy:
POV-Ray: 32% faster | 12% less energy
OpenSSL: 12% faster | energy within 1%
Build Linux Kernel: 29% faster | 18% less energy
Therefore, we should move the default EPP for balance_performance to 32.
This is in line with what has already been done for Sapphire Rapids.
Signed-off-by: Pedro Henrique Kopper <[email protected]>
Acked-by: Srinivas Pandruvada <[email protected]>
Link: https://patch.msgid.link/Zqu6zjVMoiXwROBI@capivara
Signed-off-by: Rafael J. Wysocki <[email protected]>
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The thermal sysfs API document is outdated. One of the problems with
it is that is still documents thermal_zone_device_register() which
does not exit any more and it does not reflect the current thermal
zone operations definition.
Replace the thermal_zone_device_register() description in it with
a thermal_zone_device_register_with_trips() description, including
an update of the thermal zone operations list.
Signed-off-by: Rafael J. Wysocki <[email protected]>
Reviewed-by: Lukasz Luba <[email protected]>
Link: https://patch.msgid.link/[email protected]
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The test here creates an sg table, but never maps it, when
we get to drm_gem_shmem_free, the helper tries to unmap and this
causes warnings on some platforms and debug kernels.
This also sets a 64-bit dma mask, as I see an swiotlb warning if I
stick with the default 32-bit one.
Fixes: 93032ae634d4 ("drm/test: add a test suite for GEM objects backed by shmem")
Cc: [email protected]
Signed-off-by: Dave Airlie <[email protected]>
Reviewed-by: Michael J. Ruhl <[email protected]>
Acked-by: Daniel Vetter <[email protected]>
Reviewed-by: Marco Pagani <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Signed-off-by: Maxime Ripard <[email protected]>
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In drm_client_modeset_probe(), the return value of drm_mode_duplicate() is
assigned to modeset->mode, which will lead to a possible NULL pointer
dereference on failure of drm_mode_duplicate(). Add a check to avoid npd.
Cc: [email protected]
Fixes: cf13909aee05 ("drm/fb-helper: Move out modeset config code")
Signed-off-by: Ma Ke <[email protected]>
Reviewed-by: Thomas Zimmermann <[email protected]>
Signed-off-by: Thomas Zimmermann <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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This reverts commit d45bb9c5f7a6f7b6e47939856b28cb1da0cdc119.
Just got a report that this causes some suspend/resume issues,
so back it out and I'll investigate it later.
Reported-by: Mike Galbraith <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
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https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes
A couple drm_panic fixes, several v3d fixes to increase the new timestamp API
safety, several fixes for vmwgfx for various modesetting issues, PM fixes
for ast, async flips improvements and two fixes for nouveau to fix
resource refcounting and buffer placement.
Signed-off-by: Dave Airlie <[email protected]>
From: Maxime Ripard <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/20240801-interesting-antique-bat-2fe4c0@houat
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Matthieu Baerts says:
====================
mptcp: fix endpoints with 'signal' and 'subflow' flags
When looking at improving the user experience around the MPTCP endpoints
setup, I noticed that setting an endpoint with both the 'signal' and the
'subflow' flags -- as it has been done in the past by users according to
bug reports we got -- was resulting on only announcing the endpoint, but
not using it to create subflows: the 'subflow' flag was then ignored.
My initial thought was to modify IPRoute2 to warn the user when the two
flags were set, but it doesn't sound normal to ignore one of them. I
then looked at modifying the kernel not to allow having the two flags
set, but when discussing about that with Mat, we thought it was maybe
not ideal to do that, as there might be use-cases, we might break some
configs. Then I saw it was working before v5.17. So instead, I fixed the
support on the kernel side (patch 5) using Paolo's suggestion. This also
includes a fix on the options side (patch 1: for v5.11+), an explicit
deny of some options combinations (patch 2: for v5.18+), and some
refactoring (patches 3 and 4) to ease the inclusion of the patch 5.
While at it, I added a new selftest (patch 7) to validate this case --
including a modification of the chk_add_nr helper to inverse the sides
were the counters are checked (patch 6) -- and allowed ADD_ADDR echo
just after the MP_JOIN 3WHS.
The selftests modification have the same Fixes tag as the previous
commit, but no 'Cc: Stable': if the backport can work, that's good --
but it still need to be verified by running the selftests -- if not, no
need to worry, many CIs will use the selftests from the last stable
version to validate previous stable releases.
====================
Link: https://patch.msgid.link/20240731-upstream-net-20240731-mptcp-endp-subflow-signal-v1-0-c8a9b036493b@kernel.org
Signed-off-by: Jakub Kicinski <[email protected]>
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It should be quite uncommon to set both the subflow and the signal
flags: the initiator of the connection is typically the one creating new
subflows, not the other peer, then no need to announce additional local
addresses, and use it to create subflows.
But some people might be confused about the flags, and set both "just to
be sure at least the right one is set". To verify the previous fix, and
avoid future regressions, this specific case is now validated: the
client announces a new address, and initiates a new subflow from the
same address.
While working on this, another bug has been noticed, where the client
reset the new subflow because an ADD_ADDR echo got received as the 3rd
ACK: this new test also explicitly checks that no RST have been sent by
the client and server.
The 'Fixes' tag here below is the same as the one from the previous
commit: this patch here is not fixing anything wrong in the selftests,
but it validates the previous fix for an issue introduced by this commit
ID.
Fixes: 86e39e04482b ("mptcp: keep track of local endpoint still available for each msk")
Reviewed-by: Mat Martineau <[email protected]>
Signed-off-by: Matthieu Baerts (NGI0) <[email protected]>
Link: https://patch.msgid.link/20240731-upstream-net-20240731-mptcp-endp-subflow-signal-v1-7-c8a9b036493b@kernel.org
Signed-off-by: Jakub Kicinski <[email protected]>
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In the following commit, the client will initiate the ADD_ADDR, instead
of the server. We need to way to verify the ADD_ADDR have been correctly
sent.
Note: the default expected counters for when the port number is given
are never changed by the caller, no need to accept them as parameter
then.
The 'Fixes' tag here below is the same as the one from the previous
commit: this patch here is not fixing anything wrong in the selftests,
but it validates the previous fix for an issue introduced by this commit
ID.
Fixes: 86e39e04482b ("mptcp: keep track of local endpoint still available for each msk")
Reviewed-by: Mat Martineau <[email protected]>
Signed-off-by: Matthieu Baerts (NGI0) <[email protected]>
Link: https://patch.msgid.link/20240731-upstream-net-20240731-mptcp-endp-subflow-signal-v1-6-c8a9b036493b@kernel.org
Signed-off-by: Jakub Kicinski <[email protected]>
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Up to the 'Fixes' commit, having an endpoint with both the 'signal' and
'subflow' flags, resulted in the creation of a subflow and an address
announcement using the address linked to this endpoint. After this
commit, only the address announcement was done, ignoring the 'subflow'
flag.
That's because the same bitmap is used for the two flags. It is OK to
keep this single bitmap, the already selected local endpoint simply have
to be re-used, but not via select_local_address() not to look at the
just modified bitmap.
Note that it is unusual to set the two flags together: creating a new
subflow using a new local address will implicitly advertise it to the
other peer. So in theory, no need to advertise it explicitly as well.
Maybe there are use-cases -- the subflow might not reach the other peer
that way, we can ask the other peer to try initiating the new subflow
without delay -- or very likely the user is confused, and put both flags
"just to be sure at least the right one is set". Still, if it is
allowed, the kernel should do what has been asked: using this endpoint
to announce the address and to create a new subflow from it.
An alternative is to forbid the use of the two flags together, but
that's probably too late, there are maybe use-cases, and it was working
before. This patch will avoid people complaining subflows are not
created using the endpoint they added with the 'subflow' and 'signal'
flag.
Note that with the current patch, the subflow might not be created in
some corner cases, e.g. if the 'subflows' limit was reached when sending
the ADD_ADDR, but changed later on. It is probably not worth splitting
id_avail_bitmap per target ('signal', 'subflow'), which will add another
large field to the msk "just" to track (again) endpoints. Anyway,
currently when the limits are changed, the kernel doesn't check if new
subflows can be created or removed, because we would need to keep track
of the received ADD_ADDR, and more. It sounds OK to assume that the
limits should be properly configured before establishing new
connections.
Fixes: 86e39e04482b ("mptcp: keep track of local endpoint still available for each msk")
Cc: [email protected]
Suggested-by: Paolo Abeni <[email protected]>
Reviewed-by: Mat Martineau <[email protected]>
Signed-off-by: Matthieu Baerts (NGI0) <[email protected]>
Link: https://patch.msgid.link/20240731-upstream-net-20240731-mptcp-endp-subflow-signal-v1-5-c8a9b036493b@kernel.org
Signed-off-by: Jakub Kicinski <[email protected]>
|
|
It sounds better to avoid wasting cycles and / or put extreme memory
pressure on the system by trying to create new subflows if it was not
possible to add a new item in the announce list.
While at it, a warning is now printed if the entry was already in the
list as it should not happen with the in-kernel path-manager. With this
PM, mptcp_pm_alloc_anno_list() should only fail in case of memory
pressure.
Fixes: b6c08380860b ("mptcp: remove addr and subflow in PM netlink")
Cc: [email protected]
Suggested-by: Paolo Abeni <[email protected]>
Reviewed-by: Mat Martineau <[email protected]>
Signed-off-by: Matthieu Baerts (NGI0) <[email protected]>
Link: https://patch.msgid.link/20240731-upstream-net-20240731-mptcp-endp-subflow-signal-v1-4-c8a9b036493b@kernel.org
Signed-off-by: Jakub Kicinski <[email protected]>
|
|
That will simplify the following commits.
No functional changes intended.
Suggested-by: Paolo Abeni <[email protected]>
Reviewed-by: Mat Martineau <[email protected]>
Signed-off-by: Matthieu Baerts (NGI0) <[email protected]>
Link: https://patch.msgid.link/20240731-upstream-net-20240731-mptcp-endp-subflow-signal-v1-3-c8a9b036493b@kernel.org
Signed-off-by: Jakub Kicinski <[email protected]>
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|
As mentioned in the 'Fixes' commit, the port flag is only supported by
the 'signal' flag, and not by the 'subflow' one. Then if both the
'signal' and 'subflow' flags are set, the problem is the same: the
feature cannot work with the 'subflow' flag.
Technically, if both the 'signal' and 'subflow' flags are set, it will
be possible to create the listening socket, but not to establish a
subflow using this source port. So better to explicitly deny it, not to
create some confusions because the expected behaviour is not possible.
Fixes: 09f12c3ab7a5 ("mptcp: allow to use port and non-signal in set_flags")
Cc: [email protected]
Reviewed-by: Mat Martineau <[email protected]>
Signed-off-by: Matthieu Baerts (NGI0) <[email protected]>
Link: https://patch.msgid.link/20240731-upstream-net-20240731-mptcp-endp-subflow-signal-v1-2-c8a9b036493b@kernel.org
Signed-off-by: Jakub Kicinski <[email protected]>
|
|
Before this patch, receiving an ADD_ADDR echo on the just connected
MP_JOIN subflow -- initiator side, after the MP_JOIN 3WHS -- was
resulting in an MP_RESET. That's because only ACKs with a DSS or
ADD_ADDRs without the echo bit were allowed.
Not allowing the ADD_ADDR echo after an MP_CAPABLE 3WHS makes sense, as
we are not supposed to send an ADD_ADDR before because it requires to be
in full established mode first. For the MP_JOIN 3WHS, that's different:
the ADD_ADDR can be sent on a previous subflow, and the ADD_ADDR echo
can be received on the recently created one. The other peer will already
be in fully established, so it is allowed to send that.
We can then relax the conditions here to accept the ADD_ADDR echo for
MPJ subflows.
Fixes: 67b12f792d5e ("mptcp: full fully established support after ADD_ADDR")
Cc: [email protected]
Reviewed-by: Mat Martineau <[email protected]>
Signed-off-by: Matthieu Baerts (NGI0) <[email protected]>
Link: https://patch.msgid.link/20240731-upstream-net-20240731-mptcp-endp-subflow-signal-v1-1-c8a9b036493b@kernel.org
Signed-off-by: Jakub Kicinski <[email protected]>
|
|
https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes
- Static analysis fix for int overflow
- Fix for HDCP2_STREAM_STATUS macro and removal of PWR_CLK_STATE for gen12
Signed-off-by: Dave Airlie <[email protected]>
From: Joonas Lahtinen <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
|
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https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-6.11-2024-07-27:
amdgpu:
- SMU 14.x update
- Fix contiguous VRAM handling for IB parsing
- GFX 12 fix
- Regression fix for old APUs
Signed-off-by: Dave Airlie <[email protected]>
From: Alex Deucher <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
|
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both callers have verified that fd is not greater than ->max_fds;
however, misprediction might end up with
tofree = fdt->fd[fd];
being speculatively executed. That's wrong for the same reasons
why it's wrong in close_fd()/file_close_fd_locked(); the same
solution applies - array_index_nospec(fd, fdt->max_fds) could differ
from fd only in case of speculative execution on mispredicted path.
Cc: [email protected]
Signed-off-by: Al Viro <[email protected]>
|
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While zeroing the upper 32 bits of an 8-byte getuser on 32-bit x86 was
fixed by commit 8c860ed825cb ("x86/uaccess: Fix missed zeroing of ia32 u64
get_user() range checking") it was broken again in commit 8a2462df1547
("x86/uaccess: Improve the 8-byte getuser() case").
This is because the register which holds the upper 32 bits (%ecx) is being
cleared _after_ the check_range, so if the range check fails, %ecx is never
cleared.
This can be reproduced with:
./tools/testing/kunit/kunit.py run --arch i386 usercopy
Instead, clear %ecx _before_ check_range in the 8-byte case. This
reintroduces a bit of the ugliness we were trying to avoid by adding
another #ifndef CONFIG_X86_64, but at least keeps check_range from needing
a separate bad_get_user_8 jump.
Fixes: 8a2462df1547 ("x86/uaccess: Improve the 8-byte getuser() case")
Signed-off-by: David Gow <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Acked-by: Linus Torvalds <[email protected]>
Link: https://lore.kernel.org/all/[email protected]
|
|
The RISC-V kernel already has checks to ensure that memory which would
lie outside of the linear mapping is not used. However those checks
use memory_limit, which is used to implement the mem= kernel command
line option (to limit the total amount of memory, not its address
range). When memory is made up of two or more non-contiguous memory
banks this check is incorrect.
Two changes are made here:
- add a call in setup_bootmem() to memblock_cap_memory_range() which
will cause any memory which falls outside the linear mapping to be
removed from the memory regions.
- remove the check in create_linear_mapping_page_table() which was
intended to remove memory which is outside the liner mapping based
on memory_limit, as it is no longer needed. Note a check for
mapping more memory than memory_limit (to implement mem=) is
unnecessary because of the existing call to
memblock_enforce_memory_limit().
This issue was seen when booting on a SV39 platform with two memory
banks:
0x00,80000000 1GiB
0x20,00000000 32GiB
This memory range is 158GiB from top to bottom, but the linear mapping
is limited to 128GiB, so the lower block of RAM will be mapped at
PAGE_OFFSET, and the upper block straddles the top of the linear
mapping.
This causes the following Oops:
[ 0.000000] Linux version 6.10.0-rc2-gd3b8dd5b51dd-dirty ([email protected]) (riscv64-codasip-linux-gcc (GCC) 13.2.0, GNU ld (GNU Binutils) 2.41.0.20231213) #20 SMP Sat Jun 22 11:34:22 BST 2024
[ 0.000000] memblock_add: [0x0000000080000000-0x00000000bfffffff] early_init_dt_add_memory_arch+0x4a/0x52
[ 0.000000] memblock_add: [0x0000002000000000-0x00000027ffffffff] early_init_dt_add_memory_arch+0x4a/0x52
...
[ 0.000000] memblock_alloc_try_nid: 23724 bytes align=0x8 nid=-1 from=0x0000000000000000 max_addr=0x0000000000000000 early_init_dt_alloc_memory_arch+0x1e/0x48
[ 0.000000] memblock_reserve: [0x00000027ffff5350-0x00000027ffffaffb] memblock_alloc_range_nid+0xb8/0x132
[ 0.000000] Unable to handle kernel paging request at virtual address fffffffe7fff5350
[ 0.000000] Oops [#1]
[ 0.000000] Modules linked in:
[ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 6.10.0-rc2-gd3b8dd5b51dd-dirty #20
[ 0.000000] Hardware name: codasip,a70x (DT)
[ 0.000000] epc : __memset+0x8c/0x104
[ 0.000000] ra : memblock_alloc_try_nid+0x74/0x84
[ 0.000000] epc : ffffffff805e88c8 ra : ffffffff806148f6 sp : ffffffff80e03d50
[ 0.000000] gp : ffffffff80ec4158 tp : ffffffff80e0bec0 t0 : fffffffe7fff52f8
[ 0.000000] t1 : 00000027ffffb000 t2 : 5f6b636f6c626d65 s0 : ffffffff80e03d90
[ 0.000000] s1 : 0000000000005cac a0 : fffffffe7fff5350 a1 : 0000000000000000
[ 0.000000] a2 : 0000000000005cac a3 : fffffffe7fffaff8 a4 : 000000000000002c
[ 0.000000] a5 : ffffffff805e88c8 a6 : 0000000000005cac a7 : 0000000000000030
[ 0.000000] s2 : fffffffe7fff5350 s3 : ffffffffffffffff s4 : 0000000000000000
[ 0.000000] s5 : ffffffff8062347e s6 : 0000000000000000 s7 : 0000000000000001
[ 0.000000] s8 : 0000000000002000 s9 : 00000000800226d0 s10: 0000000000000000
[ 0.000000] s11: 0000000000000000 t3 : ffffffff8080a928 t4 : ffffffff8080a928
[ 0.000000] t5 : ffffffff8080a928 t6 : ffffffff8080a940
[ 0.000000] status: 0000000200000100 badaddr: fffffffe7fff5350 cause: 000000000000000f
[ 0.000000] [<ffffffff805e88c8>] __memset+0x8c/0x104
[ 0.000000] [<ffffffff8062349c>] early_init_dt_alloc_memory_arch+0x1e/0x48
[ 0.000000] [<ffffffff8043e892>] __unflatten_device_tree+0x52/0x114
[ 0.000000] [<ffffffff8062441e>] unflatten_device_tree+0x9e/0xb8
[ 0.000000] [<ffffffff806046fe>] setup_arch+0xd4/0x5bc
[ 0.000000] [<ffffffff806007aa>] start_kernel+0x76/0x81a
[ 0.000000] Code: b823 02b2 bc23 02b2 b023 04b2 b423 04b2 b823 04b2 (bc23) 04b2
[ 0.000000] ---[ end trace 0000000000000000 ]---
[ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task!
[ 0.000000] ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]---
The problem is that memblock (unaware that some physical memory cannot
be used) has allocated memory from the top of memory but which is
outside the linear mapping region.
Signed-off-by: Stuart Menefy <[email protected]>
Fixes: c99127c45248 ("riscv: Make sure the linear mapping does not use the kernel mapping")
Reviewed-by: David McKay <[email protected]>
Reviewed-by: Alexandre Ghiti <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Palmer Dabbelt <[email protected]>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull PCI fixes from Bjorn Helgaas:
- Fix a pci_intx() regression that caused driver reload to fail with
"Resources present before probing" (Philipp Stanner)
- Fix a pciehp regression that clobbered the upper bits of RAID status
LEDs on NVMe devices behind an Intel VMD (Blazej Kucman)
* tag 'pci-v6.11-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
PCI: pciehp: Retain Power Indicator bits for userspace indicators
PCI: Fix devres regression in pci_intx()
|
|
The `if (req_max_level)` test was meant ignore req_max_level if
PG_LEVEL_NONE was returned. Hence, this function should return
max_level instead of the ignored req_max_level.
This is only a latent issue for now, since guest_memfd does not
support large pages.
Signed-off-by: Ackerley Tng <[email protected]>
Message-ID: <[email protected]>
Fixes: f32fb32820b1 ("KVM: x86: Add hook for determining max NPT mapping level")
Signed-off-by: Paolo Bonzini <[email protected]>
|
|
The sysfs "attention" file normally controls the Slot Control Attention
Indicator with 0 (off), 1 (on), 2 (blink) settings.
576243b3f9ea ("PCI: pciehp: Allow exclusive userspace control of
indicators") added pciehp_set_raw_indicator_status() to allow userspace to
directly control all four bits in both the Attention Indicator and the
Power Indicator fields via the "attention" file.
This is used on Intel VMD bridges so utilities like "ledmon" can use sysfs
"attention" to control up to 16 indicators for NVMe device RAID status.
abaaac4845a0 ("PCI: hotplug: Use FIELD_GET/PREP()") broke this by masking
the sysfs data with PCI_EXP_SLTCTL_AIC, which discards the upper two bits
intended for the Power Indicator Control field (PCI_EXP_SLTCTL_PIC).
For NVMe devices behind an Intel VMD, ledmon settings that use the
PCI_EXP_SLTCTL_PIC bits, i.e., ATTENTION_REBUILD (0x5), ATTENTION_LOCATE
(0x7), ATTENTION_FAILURE (0xD), ATTENTION_OFF (0xF), no longer worked
correctly.
Mask with PCI_EXP_SLTCTL_AIC | PCI_EXP_SLTCTL_PIC to retain both the
Attention Indicator and the Power Indicator bits.
Fixes: abaaac4845a0 ("PCI: hotplug: Use FIELD_GET/PREP()")
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Blazej Kucman <[email protected]>
[bhelgaas: commit log]
Signed-off-by: Bjorn Helgaas <[email protected]>
Cc: [email protected] # v6.7+
|
|
pci_intx() becomes managed if pcim_enable_device() has been called in
advance. Commit 25216afc9db5 ("PCI: Add managed pcim_intx()") changed this
behavior so that pci_intx() always leads to creation of a separate device
resource for itself, whereas earlier, a shared resource was used for all
PCI devres operations.
Unfortunately, pci_intx() seems to be used in some drivers' remove() paths;
in the managed case this causes a device resource to be created on driver
detach, which causes .probe() to fail if the driver is reloaded:
pci 0000:00:1f.2: Resources present before probing
Fix the regression by only redirecting pci_intx() to its managed twin
pcim_intx() if the pci_command changes.
Link: https://lore.kernel.org/r/[email protected]
Fixes: 25216afc9db5 ("PCI: Add managed pcim_intx()")
Reported-by: Damien Le Moal <[email protected]>
Closes: https://lore.kernel.org/all/[email protected]/
Signed-off-by: Philipp Stanner <[email protected]>
[bhelgaas: add error message to commit log]
Signed-off-by: Bjorn Helgaas <[email protected]>
Tested-by: Damien Le Moal <[email protected]>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from wireless, bleutooth, BPF and netfilter.
Current release - regressions:
- core: drop bad gso csum_start and offset in virtio_net_hdr
- wifi: mt76: fix null pointer access in mt792x_mac_link_bss_remove
- eth: tun: add missing bpf_net_ctx_clear() in do_xdp_generic()
- phy: aquantia: only poll GLOBAL_CFG regs on aqr113, aqr113c and
aqr115c
Current release - new code bugs:
- smc: prevent UAF in inet_create()
- bluetooth: btmtk: fix kernel crash when entering btmtk_usb_suspend
- eth: bnxt: reject unsupported hash functions
Previous releases - regressions:
- sched: act_ct: take care of padding in struct zones_ht_key
- netfilter: fix null-ptr-deref in iptable_nat_table_init().
- tcp: adjust clamping window for applications specifying SO_RCVBUF
Previous releases - always broken:
- ethtool: rss: small fixes to spec and GET
- mptcp:
- fix signal endpoint re-add
- pm: fix backup support in signal endpoints
- wifi: ath12k: fix soft lockup on suspend
- eth: bnxt_en: fix RSS logic in __bnxt_reserve_rings()
- eth: ice: fix AF_XDP ZC timeout and concurrency issues
- eth: mlx5:
- fix missing lock on sync reset reload
- fix error handling in irq_pool_request_irq"
* tag 'net-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (76 commits)
mptcp: fix duplicate data handling
mptcp: fix bad RCVPRUNED mib accounting
ipv6: fix ndisc_is_useropt() handling for PIO
igc: Fix double reset adapter triggered from a single taprio cmd
net: MAINTAINERS: Demote Qualcomm IPA to "maintained"
net: wan: fsl_qmc_hdlc: Discard received CRC
net: wan: fsl_qmc_hdlc: Convert carrier_lock spinlock to a mutex
net/mlx5e: Add a check for the return value from mlx5_port_set_eth_ptys
net/mlx5e: Fix CT entry update leaks of modify header context
net/mlx5e: Require mlx5 tc classifier action support for IPsec prio capability
net/mlx5: Fix missing lock on sync reset reload
net/mlx5: Lag, don't use the hardcoded value of the first port
net/mlx5: DR, Fix 'stack guard page was hit' error in dr_rule
net/mlx5: Fix error handling in irq_pool_request_irq
net/mlx5: Always drain health in shutdown callback
net: Add skbuff.h to MAINTAINERS
r8169: don't increment tx_dropped in case of NETDEV_TX_BUSY
netfilter: iptables: Fix potential null-ptr-deref in ip6table_nat_table_init().
netfilter: iptables: Fix null-ptr-deref in iptable_nat_table_init().
net: drop bad gso csum_start and offset in virtio_net_hdr
...
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|
We've been wanting to get rid of this for a while, add a message to
indicate that this feature is going away and when so we can finally have
a date when we're going to remove it. The output looks like this
BTRFS warning (device nvme0n1): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
Reviewed-by: Qu Wenruo <[email protected]>
Reviewed-by: Neal Gompa <[email protected]>
Signed-off-by: Josef Bacik <[email protected]>
Reviewed-by: David Sterba <[email protected]>
Signed-off-by: David Sterba <[email protected]>
|
|
In the buffered write path, the dirty page owns the qgroup reserve until
it creates an ordered_extent.
Therefore, any errors that occur before the ordered_extent is created
must free that reservation, or else the space is leaked. The fstest
generic/475 exercises various IO error paths, and is able to trigger
errors in cow_file_range where we fail to get to allocating the ordered
extent. Note that because we *do* clear delalloc, we are likely to
remove the inode from the delalloc list, so the inodes/pages to not have
invalidate/launder called on them in the commit abort path.
This results in failures at the unmount stage of the test that look like:
BTRFS: error (device dm-8 state EA) in cleanup_transaction:2018: errno=-5 IO failure
BTRFS: error (device dm-8 state EA) in btrfs_replace_file_extents:2416: errno=-5 IO failure
BTRFS warning (device dm-8 state EA): qgroup 0/5 has unreleased space, type 0 rsv 28672
------------[ cut here ]------------
WARNING: CPU: 3 PID: 22588 at fs/btrfs/disk-io.c:4333 close_ctree+0x222/0x4d0 [btrfs]
Modules linked in: btrfs blake2b_generic libcrc32c xor zstd_compress raid6_pq
CPU: 3 PID: 22588 Comm: umount Kdump: loaded Tainted: G W 6.10.0-rc7-gab56fde445b8 #21
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014
RIP: 0010:close_ctree+0x222/0x4d0 [btrfs]
RSP: 0018:ffffb4465283be00 EFLAGS: 00010202
RAX: 0000000000000001 RBX: ffffa1a1818e1000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffb4465283bbe0 RDI: ffffa1a19374fcb8
RBP: ffffa1a1818e13c0 R08: 0000000100028b16 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000003 R12: ffffa1a18ad7972c
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 00007f9168312b80(0000) GS:ffffa1a4afcc0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f91683c9140 CR3: 000000010acaa000 CR4: 00000000000006f0
Call Trace:
<TASK>
? close_ctree+0x222/0x4d0 [btrfs]
? __warn.cold+0x8e/0xea
? close_ctree+0x222/0x4d0 [btrfs]
? report_bug+0xff/0x140
? handle_bug+0x3b/0x70
? exc_invalid_op+0x17/0x70
? asm_exc_invalid_op+0x1a/0x20
? close_ctree+0x222/0x4d0 [btrfs]
generic_shutdown_super+0x70/0x160
kill_anon_super+0x11/0x40
btrfs_kill_super+0x11/0x20 [btrfs]
deactivate_locked_super+0x2e/0xa0
cleanup_mnt+0xb5/0x150
task_work_run+0x57/0x80
syscall_exit_to_user_mode+0x121/0x130
do_syscall_64+0xab/0x1a0
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f916847a887
---[ end trace 0000000000000000 ]---
BTRFS error (device dm-8 state EA): qgroup reserved space leaked
Cases 2 and 3 in the out_reserve path both pertain to this type of leak
and must free the reserved qgroup data. Because it is already an error
path, I opted not to handle the possible errors in
btrfs_free_qgroup_data.
Reviewed-by: Qu Wenruo <[email protected]>
Signed-off-by: Boris Burkov <[email protected]>
Signed-off-by: David Sterba <[email protected]>
|
|
In the buffered write path, dirty pages can be said to "own" the qgroup
reservation until they create an ordered_extent. It is possible for
there to be outstanding dirty pages when a transaction is aborted, in
which case there is no cancellation path for freeing this reservation
and it is leaked.
We do already walk the list of outstanding delalloc inodes in
btrfs_destroy_delalloc_inodes() and call invalidate_inode_pages2() on them.
This does *not* call btrfs_invalidate_folio(), as one might guess, but
rather calls launder_folio() and release_folio(). Since this is a
reservation associated with dirty pages only, rather than something
associated with the private bit (ordered_extent is cancelled separately
already in the cleanup transaction path), implementing this release
should be done via launder_folio.
Reviewed-by: Qu Wenruo <[email protected]>
Signed-off-by: Boris Burkov <[email protected]>
Signed-off-by: David Sterba <[email protected]>
|
|
Currently sctx->stat.last_physical only got updated in the following
cases:
- When the last stripe of a non-RAID56 chunk is scrubbed
This implies a pitfall, if the last stripe is at the chunk boundary,
and we finished the scrub of the whole chunk, we won't update
last_physical at all until the next chunk.
- When a P/Q stripe of a RAID56 chunk is scrubbed
This leads the following two problems:
- sctx->stat.last_physical is not updated for a almost full chunk
This is especially bad, affecting scrub resume, as the resume would
start from last_physical, causing unnecessary re-scrub.
- "btrfs scrub status" will not report any progress for a long time
Fix the problem by properly updating @last_physical after each stripe is
scrubbed.
And since we're here, for the sake of consistency, use spin lock to
protect the update of @last_physical, just like all the remaining
call sites touching sctx->stat.
Reported-by: Michel Palleau <[email protected]>
Link: https://lore.kernel.org/linux-btrfs/CAMFk-+igFTv2E8svg=cQ6o3e6CrR5QwgQ3Ok9EyRaEvvthpqCQ@mail.gmail.com/
Reviewed-by: Johannes Thumshirn <[email protected]>
Signed-off-by: Qu Wenruo <[email protected]>
Reviewed-by: David Sterba <[email protected]>
Signed-off-by: David Sterba <[email protected]>
|
|
Currently there are two locations which need to calculate the real
length of a stripe (which can be at the end of a chunk, and the chunk
size may not always be 64K aligned).
Factor them into a helper as we're going to have a third user soon.
Reviewed-by: Johannes Thumshirn <[email protected]>
Signed-off-by: Qu Wenruo <[email protected]>
Reviewed-by: David Sterba <[email protected]>
Signed-off-by: David Sterba <[email protected]>
|