- 10 Sep, 2024 17 commits
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Sean Christopherson authored
When retrying the faulting instruction after emulation failure, refresh the infinite loop protection fields even if no shadow pages were zapped, i.e. avoid hitting an infinite loop even when retrying the instruction as a last-ditch effort to avoid terminating the guest. Link: https://lore.kernel.org/r/20240831001538.336683-19-seanjc@google.comSigned-off-by: Sean Christopherson <seanjc@google.com>
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Sean Christopherson authored
Use kvm_mmu_unprotect_gfn_and_retry() in reexecute_instruction() to pick up protection against infinite loops, e.g. if KVM somehow manages to encounter an unsupported instruction and unprotecting the gfn doesn't allow the vCPU to make forward progress. Other than that, the retry-on- failure logic is a functionally equivalent, open coded version of kvm_mmu_unprotect_gfn_and_retry(). Note, the emulation failure path still isn't fully protected, as KVM won't update the retry protection fields if no shadow pages are zapped (but this change is still a step forward). That flaw will be addressed in a future patch. Reviewed-by: Yuan Yao <yuan.yao@intel.com> Link: https://lore.kernel.org/r/20240831001538.336683-18-seanjc@google.comSigned-off-by: Sean Christopherson <seanjc@google.com>
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Sean Christopherson authored
Don't bother unprotecting the target gfn if EMULTYPE_WRITE_PF_TO_SP is set, as KVM will simply report the emulation failure to userspace. This will allow converting reexecute_instruction() to use kvm_mmu_unprotect_gfn_instead_retry() instead of kvm_mmu_unprotect_page(). Link: https://lore.kernel.org/r/20240831001538.336683-17-seanjc@google.comSigned-off-by: Sean Christopherson <seanjc@google.com>
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Sean Christopherson authored
Drop the manual pfn look when retrying an instruction that KVM failed to emulation in response to a #PF due to a write-protected gfn. Now that KVM sets EMULTYPE_ALLOW_RETRY_PF if and only if the page fault hit a write- protected gfn, i.e. if and only if there's a writable memslot, there's no need to redo the lookup to avoid retrying an instruction that failed on emulated MMIO (no slot, or a write to a read-only slot). I.e. KVM will never attempt to retry an instruction that failed on emulated MMIO, whereas that was not the case prior to the introduction of RET_PF_WRITE_PROTECTED. Reviewed-by: Yuan Yao <yuan.yao@intel.com> Link: https://lore.kernel.org/r/20240831001538.336683-16-seanjc@google.comSigned-off-by: Sean Christopherson <seanjc@google.com>
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Sean Christopherson authored
Move the event re-injection unprotect+retry logic into kvm_mmu_write_protect_fault(), i.e. unprotect and retry if and only if the #PF actually hit a write-protected gfn. Note, there is a small possibility that the gfn was unprotected by a different tasking between hitting the #PF and acquiring mmu_lock, but in that case, KVM will resume the guest immediately anyways because KVM will treat the fault as spurious. As a bonus, unprotecting _after_ handling the page fault also addresses the case where the installing a SPTE to handle fault encounters a shadowed PTE, i.e. *creates* a read-only SPTE. Opportunstically add a comment explaining what on earth the intent of the code is, as based on the changelog from commit 577bdc49 ("KVM: Avoid instruction emulation when event delivery is pending"). Link: https://lore.kernel.org/r/20240831001538.336683-15-seanjc@google.comSigned-off-by: Sean Christopherson <seanjc@google.com>
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Sean Christopherson authored
When getting a gpa from a gva to unprotect the associated gfn when an event is awating reinjection, walk the guest PTEs for WRITE as there's no point in unprotecting the gfn if the guest is unable to write the page, i.e. if write-protection can't trigger emulation. Note, the entire flow should be guarded on the access being a write, and even better should be conditioned on actually triggering a write-protect fault. This will be addressed in a future commit. Reviewed-by: Yuan Yao <yuan.yao@intel.com> Link: https://lore.kernel.org/r/20240831001538.336683-14-seanjc@google.comSigned-off-by: Sean Christopherson <seanjc@google.com>
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Sean Christopherson authored
If getting the gpa for a gva fails, e.g. because the gva isn't mapped in the guest page tables, don't try to unprotect the invalid gfn. This is mostly a performance fix (avoids unnecessarily taking mmu_lock), as for_each_gfn_valid_sp_with_gptes() won't explode on garbage input, it's simply pointless. Link: https://lore.kernel.org/r/20240831001538.336683-13-seanjc@google.comSigned-off-by: Sean Christopherson <seanjc@google.com>
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Sean Christopherson authored
Now that retry_instruction() is reasonably tiny, fold it into its sole caller, x86_emulate_instruction(). In addition to getting rid of the absurdly confusing retry_instruction() name, handling the retry in x86_emulate_instruction() pairs it back up with the code that resets last_retry_{eip,address}. No functional change intended. Reviewed-by: Yuan Yao <yuan.yao@intel.com> Link: https://lore.kernel.org/r/20240831001538.336683-12-seanjc@google.comSigned-off-by: Sean Christopherson <seanjc@google.com>
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Sean Christopherson authored
Move the sanity checks for EMULTYPE_ALLOW_RETRY_PF to the top of x86_emulate_instruction(). In addition to deduplicating a small amount of code, this makes the connection between EMULTYPE_ALLOW_RETRY_PF and EMULTYPE_PF even more explicit, and will allow dropping retry_instruction() entirely. Reviewed-by: Yuan Yao <yuan.yao@intel.com> Link: https://lore.kernel.org/r/20240831001538.336683-11-seanjc@google.comSigned-off-by: Sean Christopherson <seanjc@google.com>
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Sean Christopherson authored
Try to unprotect shadow pages if and only if indirect_shadow_pages is non- zero, i.e. iff there is at least one protected such shadow page. Pre- checking indirect_shadow_pages avoids taking mmu_lock for write when the gfn is write-protected by a third party, i.e. not for KVM shadow paging, and in the *extremely* unlikely case that a different task has already unprotected the last shadow page. Link: https://lore.kernel.org/r/20240831001538.336683-10-seanjc@google.comSigned-off-by: Sean Christopherson <seanjc@google.com>
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Sean Christopherson authored
Move the anti-infinite-loop protection provided by last_retry_{eip,addr} into kvm_mmu_write_protect_fault() so that it guards unprotect+retry that never hits the emulator, as well as reexecute_instruction(), which is the last ditch "might as well try it" logic that kicks in when emulation fails on an instruction that faulted on a write-protected gfn. Add a new helper, kvm_mmu_unprotect_gfn_and_retry(), to set the retry fields and deduplicate other code (with more to come). Link: https://lore.kernel.org/r/20240831001538.336683-9-seanjc@google.comSigned-off-by: Sean Christopherson <seanjc@google.com>
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Sean Christopherson authored
Store the gpa used to unprotect the faulting gfn for retry as a gpa_t, not an unsigned long. This fixes a bug where 32-bit KVM would unprotect and retry the wrong gfn if the gpa had bits 63:32!=0. In practice, this bug is functionally benign, as unprotecting the wrong gfn is purely a performance issue (thanks to the anti-infinite-loop logic). And of course, almost no one runs 32-bit KVM these days. Reviewed-by: Yuan Yao <yuan.yao@intel.com> Link: https://lore.kernel.org/r/20240831001538.336683-8-seanjc@google.comSigned-off-by: Sean Christopherson <seanjc@google.com>
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Sean Christopherson authored
Read RIP from vCPU state instead of pulling it from the emulation context when filling last_retry_eip, which is part of the anti-infinite-loop protection used when unprotecting and retrying instructions that hit a write-protected gfn. This will allow reusing the anti-infinite-loop protection in flows that never make it into the emulator. No functional change intended, as ctxt->eip is set to kvm_rip_read() in init_emulate_ctxt(), and EMULTYPE_PF emulation is mutually exclusive with EMULTYPE_NO_DECODE and EMULTYPE_SKIP, i.e. always goes through x86_decode_emulated_instruction() and hasn't advanced ctxt->eip (yet). Reviewed-by: Yuan Yao <yuan.yao@intel.com> Link: https://lore.kernel.org/r/20240831001538.336683-7-seanjc@google.comSigned-off-by: Sean Christopherson <seanjc@google.com>
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Sean Christopherson authored
Resume the guest and thus skip emulation of a non-PTE-writing instruction if and only if unprotecting the gfn actually zapped at least one shadow page. If the gfn is write-protected for some reason other than shadow paging, attempting to unprotect the gfn will effectively fail, and thus retrying the instruction is all but guaranteed to be pointless. This bug has existed for a long time, but was effectively fudged around by the retry RIP+address anti-loop detection. Reviewed-by: Yuan Yao <yuan.yao@intel.com> Link: https://lore.kernel.org/r/20240831001538.336683-6-seanjc@google.comSigned-off-by: Sean Christopherson <seanjc@google.com>
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Sean Christopherson authored
When doing "fast unprotection" of nested TDP page tables, skip emulation if and only if at least one gfn was unprotected, i.e. continue with emulation if simply resuming is likely to hit the same fault and risk putting the vCPU into an infinite loop. Note, it's entirely possible to get a false negative, e.g. if a different vCPU faults on the same gfn and unprotects the gfn first, but that's a relatively rare edge case, and emulating is still functionally ok, i.e. saving a few cycles by avoiding emulation isn't worth the risk of putting the vCPU into an infinite loop. Opportunistically rewrite the relevant comment to document in gory detail exactly what scenario the "fast unprotect" logic is handling. Fixes: 14727754 ("kvm: svm: Add support for additional SVM NPF error codes") Cc: Yuan Yao <yuan.yao@intel.com> Reviewed-by: Yuan Yao <yuan.yao@intel.com> Link: https://lore.kernel.org/r/20240831001538.336683-5-seanjc@google.comSigned-off-by: Sean Christopherson <seanjc@google.com>
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Sean Christopherson authored
Trigger KVM's various "unprotect gfn" paths if and only if the page fault was a write to a write-protected gfn. To do so, add a new page fault return code, RET_PF_WRITE_PROTECTED, to explicitly and precisely track such page faults. If a page fault requires emulation for any MMIO (or any reason besides write-protection), trying to unprotect the gfn is pointless and risks putting the vCPU into an infinite loop. E.g. KVM will put the vCPU into an infinite loop if the vCPU manages to trigger MMIO on a page table walk. Fixes: 14727754 ("kvm: svm: Add support for additional SVM NPF error codes") Reviewed-by: Yuan Yao <yuan.yao@intel.com> Link: https://lore.kernel.org/r/20240831001538.336683-4-seanjc@google.comSigned-off-by: Sean Christopherson <seanjc@google.com>
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Sean Christopherson authored
Drop the globally visible PFERR_NESTED_GUEST_PAGE and replace it with a more appropriately named is_write_to_guest_page_table(). The macro name is misleading, because while all nNPT walks match PAGE|WRITE|PRESENT, the reverse is not true. No functional change intended. Link: https://lore.kernel.org/r/20240831001538.336683-3-seanjc@google.comSigned-off-by: Sean Christopherson <seanjc@google.com>
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- 30 Aug, 2024 3 commits
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Sean Christopherson authored
Rewrite the comment in FNAME(fetch) to explain why KVM needs to check that the gPTE is still fresh before continuing the shadow page walk, even if KVM already has a linked shadow page for the gPTE in question. No functional change intended. Link: https://lore.kernel.org/r/20240802203900.348808-4-seanjc@google.comSigned-off-by: Sean Christopherson <seanjc@google.com>
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Sean Christopherson authored
Drop the pointless and poorly named "out_gpte_changed" label, in FNAME(fetch), and instead return RET_PF_RETRY directly. No functional change intended. Link: https://lore.kernel.org/r/20240802203900.348808-3-seanjc@google.comSigned-off-by: Sean Christopherson <seanjc@google.com>
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Sean Christopherson authored
Combine the back-to-back if-statements for synchronizing children when linking a new indirect shadow page in order to decrease the indentation, and to make it easier to "see" the logic in its entirety. No functional change intended. Link: https://lore.kernel.org/r/20240802203900.348808-2-seanjc@google.comSigned-off-by: Sean Christopherson <seanjc@google.com>
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- 22 Aug, 2024 1 commit
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Sean Christopherson authored
Rework the function comment for kvm_arch_mmu_enable_log_dirty_pt_masked() into the body of the function, as it has gotten a bit stale, is harder to read without the code context, and is the last source of warnings for W=1 builds in KVM x86 due to using a kernel-doc comment without documenting all parameters. Opportunistically subsume the functions comments for kvm_mmu_write_protect_pt_masked() and kvm_mmu_clear_dirty_pt_masked(), as there is no value in regurgitating similar information at a higher level, and capturing the differences between write-protection and PML-based dirty logging is best done in a common location. No functional change intended. Cc: David Matlack <dmatlack@google.com> Reviewed-by: Kai Huang <kai.huang@intel.com> Reviewed-by: Pankaj Gupta <pankaj.gupta@amd.com> Link: https://lore.kernel.org/r/20240802202006.340854-1-seanjc@google.comSigned-off-by: Sean Christopherson <seanjc@google.com>
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- 18 Aug, 2024 9 commits
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Linus Torvalds authored
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Linus Torvalds authored
Merge tag 'driver-core-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core fixes from Greg KH: "Here are two driver fixes for regressions from 6.11-rc1 due to the driver core change making a structure in a driver core callback const. These were missed by all testing EXCEPT for what Bart happened to be running, so I appreciate the fixes provided here for some odd/not-often-used driver subsystems that nothing else happened to catch. Both of these fixes have been in linux-next all week with no reported issues" * tag 'driver-core-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: mips: sgi-ip22: Fix the build ARM: riscpc: ecard: Fix the build
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds authored
Pull char / misc fixes from Greg KH: "Here are some small char/misc fixes for 6.11-rc4 to resolve reported problems. Included in here are: - fastrpc revert of a change that broke userspace - xillybus fixes for reported issues Half of these have been in linux-next this week with no reported problems, I don't know if the last bit of xillybus driver changes made it in, but they are 'obviously correct' so will be safe :)" * tag 'char-misc-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: char: xillybus: Check USB endpoints when probing device char: xillybus: Refine workqueue handling Revert "misc: fastrpc: Restrict untrusted app to attach to privileged PD" char: xillybus: Don't destroy workqueue from work item running on it
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/ttyLinus Torvalds authored
Pull tty / serial fixes from Greg KH: "Here are some small tty and serial driver fixes for 6.11-rc4 to resolve some reported problems. Included in here are: - conmakehash.c userspace build issues - fsl_lpuart driver fix - 8250_omap revert for reported regression - atmel_serial rts flag fix All of these have been in linux-next this week with no reported issues" * tag 'tty-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: Revert "serial: 8250_omap: Set the console genpd always on if no console suspend" tty: atmel_serial: use the correct RTS flag. tty: vt: conmakehash: remove non-portable code printing comment header tty: serial: fsl_lpuart: mark last busy before uart_add_one_port
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB / Thunderbolt driver fixes from Greg KH: "Here are some small USB and Thunderbolt driver fixes for 6.11-rc4 to resolve some reported issues. Included in here are: - thunderbolt driver fixes for reported problems - typec driver fixes - xhci fixes - new device id for ljca usb driver All of these have been in linux-next this week with no reported issues" * tag 'usb-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: xhci: Fix Panther point NULL pointer deref at full-speed re-enumeration usb: misc: ljca: Add Lunar Lake ljca GPIO HID to ljca_gpio_hids[] Revert "usb: typec: tcpm: clear pd_event queue in PORT_RESET" usb: typec: ucsi: Fix the return value of ucsi_run_command() usb: xhci: fix duplicate stall handling in handle_tx_event() usb: xhci: Check for xhci->interrupters being allocated in xhci_mem_clearup() thunderbolt: Mark XDomain as unplugged when router is removed thunderbolt: Fix memory leaks in {port|retimer}_sb_regs_write()
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linuxLinus Torvalds authored
Pull more btrfs fixes from David Sterba: "A more fixes. We got reports that shrinker added in 6.10 still causes latency spikes and the fixes don't handle all corner cases. Due to summer holidays we're taking a shortcut to disable it for release builds and will fix it in the near future. - only enable extent map shrinker for DEBUG builds, temporary quick fix to avoid latency spikes for regular builds - update target inode's ctime on unlink, mandated by POSIX - properly take lock to read/update block group's zoned variables - add counted_by() annotations" * tag 'for-6.11-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: btrfs: only enable extent map shrinker for DEBUG builds btrfs: zoned: properly take lock to read/update block group's zoned variables btrfs: tree-checker: add dev extent item checks btrfs: update target inode's ctime on unlink btrfs: send: annotate struct name_cache_entry with __counted_by()
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Jann Horn authored
fuse_notify_store(), unlike fuse_do_readpage(), does not enable page zeroing (because it can be used to change partial page contents). So fuse_notify_store() must be more careful to fully initialize page contents (including parts of the page that are beyond end-of-file) before marking the page uptodate. The current code can leave beyond-EOF page contents uninitialized, which makes these uninitialized page contents visible to userspace via mmap(). This is an information leak, but only affects systems which do not enable init-on-alloc (via CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y or the corresponding kernel command line parameter). Link: https://bugs.chromium.org/p/project-zero/issues/detail?id=2574 Cc: stable@kernel.org Fixes: a1d75f25 ("fuse: add store request") Signed-off-by: Jann Horn <jannh@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds authored
Merge tag 'mm-hotfixes-stable-2024-08-17-19-34' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "16 hotfixes. All except one are for MM. 10 of these are cc:stable and the others pertain to post-6.10 issues. As usual with these merges, singletons and doubletons all over the place, no identifiable-by-me theme. Please see the lovingly curated changelogs to get the skinny" * tag 'mm-hotfixes-stable-2024-08-17-19-34' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: mm/migrate: fix deadlock in migrate_pages_batch() on large folios alloc_tag: mark pages reserved during CMA activation as not tagged alloc_tag: introduce clear_page_tag_ref() helper function crash: fix riscv64 crash memory reserve dead loop selftests: memfd_secret: don't build memfd_secret test on unsupported arches mm: fix endless reclaim on machines with unaccepted memory selftests/mm: compaction_test: fix off by one in check_compaction() mm/numa: no task_numa_fault() call if PMD is changed mm/numa: no task_numa_fault() call if PTE is changed mm/vmalloc: fix page mapping if vm_area_alloc_pages() with high order fallback to order 0 mm/memory-failure: use raw_spinlock_t in struct memory_failure_cpu mm: don't account memmap per-node mm: add system wide stats items category mm: don't account memmap on failure mm/hugetlb: fix hugetlb vs. core-mm PT locking mseal: fix is_madv_discard()
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc fixes from Michael Ellerman: - Fix crashes on 85xx with some configs since the recent hugepd rework. - Fix boot warning with hugepages and CONFIG_DEBUG_VIRTUAL on some platforms. - Don't enable offline cores when changing SMT modes, to match existing userspace behaviour. Thanks to Christophe Leroy, Dr. David Alan Gilbert, Guenter Roeck, Nysal Jan K.A, Shrikanth Hegde, Thomas Gleixner, and Tyrel Datwyler. * tag 'powerpc-6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/topology: Check if a core is online cpu/SMT: Enable SMT only if a core is online powerpc/mm: Fix boot warning with hugepages and CONFIG_DEBUG_VIRTUAL powerpc/mm: Fix size of allocated PGDIR soc: fsl: qbman: remove unused struct 'cgr_comp'
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- 17 Aug, 2024 8 commits
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git://git.samba.org/sfrench/cifs-2.6Linus Torvalds authored
Pull smb client fixes from Steve French: - fix for clang warning - additional null check - fix for cached write with posix locks - flexible structure fix * tag 'v6.11-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6: smb: smb2pdu.h: Use static_assert() to check struct sizes smb3: fix lock breakage for cached writes smb/client: avoid possible NULL dereference in cifs_free_subrequest()
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linuxLinus Torvalds authored
Pull i2c fixes from Wolfram Sang: "I2C core fix replacing IS_ENABLED() with IS_REACHABLE() For host drivers, there are two fixes: - Tegra I2C Controller: Addresses a potential double-locking issue during probe. ACPI devices are not IRQ-safe when invoking runtime suspend and resume functions, so the irq_safe flag should not be set. - Qualcomm GENI I2C Controller: Fixes an oversight in the exit path of the runtime_resume() function, which was missed in the previous release" * tag 'i2c-for-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: tegra: Do not mark ACPI devices as irq safe i2c: Use IS_REACHABLE() for substituting empty ACPI functions i2c: qcom-geni: Add missing geni_icc_disable in geni_i2c_runtime_resume
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull SCSI fixes from James Bottomley: "Two small fixes to the mpi3mr driver. One to avoid oversize allocations in tracing and the other to fix an uninitialized spinlock in the user to driver feature request code (used to trigger dumps and the like)" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: mpi3mr: Avoid MAX_PAGE_ORDER WARNING for buffer allocations scsi: mpi3mr: Add missing spin_lock_init() for mrioc->trigger_lock
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git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds authored
Pull xfs fixes from Chandan Babu: - Check for presence of only 'attr' feature before scrubbing an inode's attribute fork. - Restore the behaviour of setting AIL thread to TASK_INTERRUPTIBLE for long (i.e. 50ms) sleep durations to prevent high load averages. - Do not allow users to change the realtime flag of a file unless the datadev and rtdev both support fsdax access modes. * tag 'xfs-6.11-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: conditionally allow FS_XFLAG_REALTIME changes if S_DAX is set xfs: revert AIL TASK_KILLABLE threshold xfs: attr forks require attr, not attr2
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git://evilpiepirate.org/bcachefsLinus Torvalds authored
Pull bcachefs fixes from Kent OverstreetL - New on disk format version, bcachefs_metadata_version_disk_accounting_inum This adds one more disk accounting counter, which counts disk usage and number of extents per inode number. This lets us track fragmentation, for implementing defragmentation later, and it also counts disk usage per inode in all snapshots, which will be a useful thing to expose to users. - One performance issue we've observed is threads spinning when they should be waiting for dirty keys in the key cache to be flushed by journal reclaim, so we now have hysteresis for the waiting thread, as well as improving the tracepoint and a new time_stat, for tracking time blocked waiting on key cache flushing. ... and various assorted smaller fixes. * tag 'bcachefs-2024-08-16' of git://evilpiepirate.org/bcachefs: bcachefs: Fix locking in __bch2_trans_mark_dev_sb() bcachefs: fix incorrect i_state usage bcachefs: avoid overflowing LRU_TIME_BITS for cached data lru bcachefs: Fix forgetting to pass trans to fsck_err() bcachefs: Increase size of cuckoo hash table on too many rehashes bcachefs: bcachefs_metadata_version_disk_accounting_inum bcachefs: Kill __bch2_accounting_mem_mod() bcachefs: Make bkey_fsck_err() a wrapper around fsck_err() bcachefs: Fix warning in __bch2_fsck_err() for trans not passed in bcachefs: Add a time_stat for blocked on key cache flush bcachefs: Improve trans_blocked_journal_reclaim tracepoint bcachefs: Add hysteresis to waiting on btree key cache flush lib/generic-radix-tree.c: Fix rare race in __genradix_ptr_alloc() bcachefs: Convert for_each_btree_node() to lockrestart_do() bcachefs: Add missing downgrade table entry bcachefs: disk accounting: ignore unknown types bcachefs: bch2_accounting_invalid() fixup bcachefs: Fix bch2_trigger_alloc when upgrading from old versions bcachefs: delete faulty fastpath in bch2_btree_path_traverse_cached()
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Kent Overstreet authored
We run this in full RW mode now, so we have to guard against the superblock buffer being reallocated. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull memcg-v1 fix from Al Viro: "memcg_write_event_control() oops fix" * tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: memcg_write_event_control(): fix a user-triggerable oops
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull arm64 fixes from Catalin Marinas: - Fix the arm64 __get_mem_asm() to use the _ASM_EXTABLE_##type##ACCESS() macro instead of the *_ERR() one in order to avoid writing -EFAULT to the value register in case of a fault - Initialise all elements of the acpi_early_node_map[] to NUMA_NO_NODE. Prior to this fix, only the first element was initialised - Move the KASAN random tag seed initialisation after the per-CPU areas have been initialised (prng_state is __percpu) * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: Fix KASAN random tag seed initialization arm64: ACPI: NUMA: initialize all values of acpi_early_node_map to NUMA_NO_NODE arm64: uaccess: correct thinko in __get_mem_asm()
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- 16 Aug, 2024 2 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linuxLinus Torvalds authored
Pull clk fix from Stephen Boyd: "One fix for the new T-Head TH1520 clk driver that marks a bus clk critical so that it isn't turned off during late init which breaks emmc-sdio" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: thead: fix dependency on clk_ignore_unused
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git://git.kernel.dk/linuxLinus Torvalds authored
Pull block fixes from Jens Axboe: - Fix corruption issues with s390/dasd (Eric, Stefan) - Fix a misuse of non irq locking grab of a lock (Li) - MD pull request with a single data corruption fix for raid1 (Yu) * tag 'block-6.11-20240824' of git://git.kernel.dk/linux: block: Fix lockdep warning in blk_mq_mark_tag_wait md/raid1: Fix data corruption for degraded array with slow disk s390/dasd: fix error recovery leading to data corruption on ESE devices s390/dasd: Remove DMA alignment
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