- 12 6月, 2009 5 次提交
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由 Catalin Marinas 提交于
This patch adds the callbacks to kmemleak_(alloc|free) functions from the slub allocator. Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com> Cc: Christoph Lameter <cl@linux-foundation.org> Reviewed-by: NPekka Enberg <penberg@cs.helsinki.fi>
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由 Catalin Marinas 提交于
This patch adds the callbacks to kmemleak_(alloc|free) functions from the slob allocator. Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com> Acked-by: NMatt Mackall <mpm@selenic.com> Acked-by: NPekka Enberg <penberg@cs.helsinki.fi>
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由 Catalin Marinas 提交于
This patch adds the callbacks to kmemleak_(alloc|free) functions from the slab allocator. The patch also adds the SLAB_NOLEAKTRACE flag to avoid recursive calls to kmemleak when it allocates its own data structures. Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com> Reviewed-by: NPekka Enberg <penberg@cs.helsinki.fi>
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由 Catalin Marinas 提交于
This patch adds the Documentation/kmemleak.txt file with some information about how kmemleak works. Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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由 Catalin Marinas 提交于
This patch adds the base support for the kernel memory leak detector. It traces the memory allocation/freeing in a way similar to the Boehm's conservative garbage collector, the difference being that the unreferenced objects are not freed but only shown in /sys/kernel/debug/kmemleak. Enabling this feature introduces an overhead to memory allocations. Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com> Cc: Ingo Molnar <mingo@elte.hu> Acked-by: NPekka Enberg <penberg@cs.helsinki.fi> Cc: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com>
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- 11 6月, 2009 29 次提交
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由 Linus Torvalds 提交于
Merge branch 'tracing-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: function-graph: always initialize task ret_stack function-graph: move initialization of new tasks up in fork function-graph: add memory barriers for accessing task's ret_stack function-graph: enable the stack after initialization of other variables function-graph: only allocate init tasks if it was not already done Manually fix trivial conflict in kernel/trace/ftrace.c
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip由 Linus Torvalds 提交于
* 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (244 commits) Revert "x86, bts: reenable ptrace branch trace support" tracing: do not translate event helper macros in print format ftrace/documentation: fix typo in function grapher name tracing/events: convert block trace points to TRACE_EVENT(), fix !CONFIG_BLOCK tracing: add protection around module events unload tracing: add trace_seq_vprint interface tracing: fix the block trace points print size tracing/events: convert block trace points to TRACE_EVENT() ring-buffer: fix ret in rb_add_time_stamp ring-buffer: pass in lockdep class key for reader_lock tracing: add annotation to what type of stack trace is recorded tracing: fix multiple use of __print_flags and __print_symbolic tracing/events: fix output format of user stack tracing/events: fix output format of kernel stack tracing/trace_stack: fix the number of entries in the header ring-buffer: discard timestamps that are at the start of the buffer ring-buffer: try to discard unneeded timestamps ring-buffer: fix bug in ring_buffer_discard_commit ftrace: do not profile functions when disabled tracing: make trace pipe recognize latency format flag ...
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由 Linus Torvalds 提交于
Merge branch 'oprofile-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'oprofile-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: oprofile: introduce module_param oprofile.cpu_type oprofile: add support for Core i7 and Atom oprofile: remove undocumented oprofile.p4force option oprofile: re-add force_arch_perfmon option
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip由 Linus Torvalds 提交于
* 'signal-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: hookup sys_rt_tgsigqueueinfo signals: implement sys_rt_tgsigqueueinfo signals: split do_tkill
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip由 Linus Torvalds 提交于
* 'rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: rcu: rcu_sched_grace_period(): kill the bogus flush_signals() rculist: use list_entry_rcu in places where it's appropriate rculist.h: introduce list_entry_rcu() and list_first_entry_rcu() rcu: Update RCU tracing documentation for __rcu_pending rcu: Add __rcu_pending tracing to hierarchical RCU RCU: make treercu be default
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip由 Linus Torvalds 提交于
* 'printk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: vsprintf: introduce %pf format specifier printk: add support of hh length modifier for printk
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip由 Linus Torvalds 提交于
* 'percpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: percpu: remove rbtree and use page->index instead percpu: don't put the first chunk in reverse-map rbtree
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip由 Linus Torvalds 提交于
* 'locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: spinlock: Add missing __raw_spin_lock_flags() stub for UP mutex: add atomic_dec_and_mutex_lock(), fix locking, rtmutex.c: Documentation cleanup mutex: add atomic_dec_and_mutex_lock()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip由 Linus Torvalds 提交于
* 'iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (61 commits) amd-iommu: remove unnecessary "AMD IOMMU: " prefix amd-iommu: detach device explicitly before attaching it to a new domain amd-iommu: remove BUS_NOTIFY_BOUND_DRIVER handling dma-debug: simplify logic in driver_filter() dma-debug: disable/enable irqs only once in device_dma_allocations dma-debug: use pr_* instead of printk(KERN_* ...) dma-debug: code style fixes dma-debug: comment style fixes dma-debug: change hash_bucket_find from first-fit to best-fit x86: enable GART-IOMMU only after setting up protection methods amd_iommu: fix lock imbalance dma-debug: add documentation for the driver filter dma-debug: add dma_debug_driver kernel command line dma-debug: add debugfs file for driver filter dma-debug: add variables and checks for driver filter dma-debug: fix debug_dma_sync_sg_for_cpu and debug_dma_sync_sg_for_device dma-debug: use sg_dma_len accessor dma-debug: use sg_dma_address accessor instead of using dma_address directly amd-iommu: don't free dma adresses below 512MB with CONFIG_IOMMU_STRESS amd-iommu: don't preallocate page tables with CONFIG_IOMMU_STRESS ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip由 Linus Torvalds 提交于
* 'futexes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: futex: fix restart in wait_requeue_pi futex: fix restart for early wakeup in futex_wait_requeue_pi() futex: cleanup error exit futex: remove the wait queue futex: add requeue-pi documentation futex: remove FUTEX_REQUEUE_PI (non CMP) futex: fix futex_wait_setup key handling sparc64: extend TI_RESTART_BLOCK space by 8 bytes futex: fixup unlocked requeue pi case futex: add requeue_pi functionality futex: split out futex value validation code futex: distangle futex_requeue() futex: add FUTEX_HAS_TIMEOUT flag to restart.futex.flags rt_mutex: add proxy lock routines futex: split out fixup owner logic from futex_lock_pi() futex: split out atomic logic from futex_lock_pi() futex: add helper to find the top prio waiter of a futex futex: separate futex_wait_queue_me() logic from futex_wait()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip由 Linus Torvalds 提交于
* 'x86-xen-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (42 commits) xen: cache cr0 value to avoid trap'n'emulate for read_cr0 xen/x86-64: clean up warnings about IST-using traps xen/x86-64: fix breakpoints and hardware watchpoints xen: reserve Xen start_info rather than e820 reserving xen: add FIX_TEXT_POKE to fixmap lguest: update lazy mmu changes to match lguest's use of kvm hypercalls xen: honour VCPU availability on boot xen: add "capabilities" file xen: drop kexec bits from /sys/hypervisor since kexec isn't implemented yet xen/sys/hypervisor: change writable_pt to features xen: add /sys/hypervisor support xen/xenbus: export xenbus_dev_changed xen: use device model for suspending xenbus devices xen: remove suspend_cancel hook xen/dev-evtchn: clean up locking in evtchn xen: export ioctl headers to userspace xen: add /dev/xen/evtchn driver xen: add irq_from_evtchn xen: clean up gate trap/interrupt constants xen: set _PAGE_NX in __supported_pte_mask before pagetable construction ...
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由 Linus Torvalds 提交于
Merge branch 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: move rdtsc_barrier() into the TSC vread method
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由 Linus Torvalds 提交于
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Clear TS in irq_ts_save() when in an atomic section x86: Detect use of extended APIC ID for AMD CPUs x86: memtest: remove 64-bit division x86, UV: Fix macros for multiple coherency domains x86: Fix non-lazy GS handling in sys_vm86() x86: Add quirk for reboot stalls on a Dell Optiplex 360 x86: Fix UV BAU activation descriptor init
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由 Linus Torvalds 提交于
Merge branch 'x86-setup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-setup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, setup: fix comment in the "glove box" code x86, setup: "glove box" BIOS interrupts in the video code x86, setup: "glove box" BIOS interrupts in the MCA code x86, setup: "glove box" BIOS interrupts in the EDD code x86, setup: "glove box" BIOS interrupts in the APM code x86, setup: "glove box" BIOS interrupts in the core boot code x86, setup: "glove box" BIOS calls -- infrastructure
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip由 Linus Torvalds 提交于
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (22 commits) x86: fix system without memory on node0 x86, mm: Fix node_possible_map logic mm, x86: remove MEMORY_HOTPLUG_RESERVE related code x86: make sparse mem work in non-NUMA mode x86: process.c, remove useless headers x86: merge process.c a bit x86: use sparse_memory_present_with_active_regions() on UMA x86: unify 64-bit UMA and NUMA paging_init() x86: Allow 1MB of slack between the e820 map and SRAT, not 4GB x86: Sanity check the e820 against the SRAT table using e820 map only x86: clean up and and print out initial max_pfn_mapped x86/pci: remove rounding quirk from e820_setup_gap() x86, e820, pci: reserve extra free space near end of RAM x86: fix typo in address space documentation x86: 46 bit physical address support on 64 bits x86, mm: fault.c, use printk_once() in is_errata93() x86: move per-cpu mmu_gathers to mm/init.c x86: move max_pfn_mapped and max_low_pfn_mapped to setup.c x86: unify noexec handling x86: remove (null) in /sys kernel_page_tables ...
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由 Linus Torvalds 提交于
Merge branch 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, microcode: Simplify vfree() use x86: microcode: use smp_call_function_single instead of set_cpus_allowed, cleanup of synchronization logic
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip由 Linus Torvalds 提交于
* 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86_64: fix incorrect comments x86: unify restore_fpu_checking x86_32: introduce restore_fpu_checking()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip由 Linus Torvalds 提交于
* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: cpu_debug: Remove model information to reduce encoding-decoding x86: fixup numa_node information for AMD CPU northbridge functions x86: k8 convert node_to_k8_nb_misc() from a macro to an inline function x86: cacheinfo: complete L2/L3 Cache and TLB associativity field definitions x86/docs: add description for cache_disable sysfs interface x86: cacheinfo: disable L3 ECC scrubbing when L3 cache index is disabled x86: cacheinfo: replace sysfs interface for cache_disable feature x86: cacheinfo: use cached K8 NB_MISC devices instead of scanning for it x86: cacheinfo: correct return value when cache_disable feature is not active x86: cacheinfo: use L3 cache index disable feature only for CPUs that support it
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由 Linus Torvalds 提交于
Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, nmi: Use predefined numbers instead of hardcoded one x86: asm/processor.h: remove double declaration x86, mtrr: replace MTRRdefType_MSR with msr-index's MSR_MTRRdefType x86, mtrr: replace MTRRfix4K_C0000_MSR with msr-index's MSR_MTRRfix4K_C0000 x86, mtrr: remove mtrr MSRs double declaration x86, mtrr: replace MTRRfix16K_80000_MSR with msr-index's MSR_MTRRfix16K_80000 x86, mtrr: replace MTRRfix64K_00000_MSR with msr-index's MSR_MTRRfix64K_00000 x86, mtrr: replace MTRRcap_MSR with msr-index's MSR_MTRRcap x86: mce: remove duplicated #include x86: msr-index.h remove duplicate MSR C001_0015 declaration x86: clean up arch/x86/kernel/tsc_sync.c a bit x86: use symbolic name for VM86_SIGNAL when used as vm86 default return x86: added 'ifndef _ASM_X86_IOMAP_H' to iomap.h x86: avoid multiple declaration of kstack_depth_to_print x86: vdso/vma.c declare vdso_enabled and arch_setup_additional_pages before they get used x86: clean up declarations and variables x86: apic/x2apic_cluster.c x86_cpu_to_logical_apicid should be static x86 early quirks: eliminate unused function
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip由 Linus Torvalds 提交于
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, 64-bit: ifdef out struct thread_struct::ip x86, 32-bit: ifdef out struct thread_struct::fs x86: clean up alternative.h
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由 Linus Torvalds 提交于
Merge branch 'sched-docs-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-docs-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: Document memory barriers implied by sleep/wake-up primitives
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由 Linus Torvalds 提交于
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: fix typo in sched-rt-group.txt file ftrace: fix typo about map of kernel priority in ftrace.txt file. sched: properly define the sched_group::cpumask and sched_domain::span fields sched, timers: cleanup avenrun users sched, timers: move calc_load() to scheduler sched: Don't export sched_mc_power_savings on multi-socket single core system sched: emit thread info flags with stack trace sched: rt: document the risk of small values in the bandwidth settings sched: Replace first_cpu() with cpumask_first() in ILB nomination code sched: remove extra call overhead for schedule() sched: use group_first_cpu() instead of cpumask_first(sched_group_cpus()) wait: don't use __wake_up_common() sched: Nominate a power-efficient ilb in select_nohz_balancer() sched: Nominate idle load balancer from a semi-idle package. sched: remove redundant hierarchy walk in check_preempt_wakeup
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由 Ingo Molnar 提交于
This reverts commit 7e0bfad2. A late objection to the ABI has arrived: http://lkml.org/lkml/2009/6/10/253 Keep the ABI disabled out of caution, to not create premature user-space expectations. While the hw-branch-tracing variant uses and tests the BTS code. Cc: Peter Zijlstra <peterz@infradead.org> Cc: Markus Metzger <markus.t.metzger@intel.com> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Linus Torvalds 提交于
Merge branch 'x86-kbuild-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-kbuild-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (46 commits) x86, boot: add new generated files to the appropriate .gitignore files x86, boot: correct the calculation of ZO_INIT_SIZE x86-64: align __PHYSICAL_START, remove __KERNEL_ALIGN x86, boot: correct sanity checks in boot/compressed/misc.c x86: add extension fields for bootloader type and version x86, defconfig: update kernel position parameters x86, defconfig: update to current, no material changes x86: make CONFIG_RELOCATABLE the default x86: default CONFIG_PHYSICAL_START and CONFIG_PHYSICAL_ALIGN to 16 MB x86: document new bzImage fields x86, boot: make kernel_alignment adjustable; new bzImage fields x86, boot: remove dead code from boot/compressed/head_*.S x86, boot: use LOAD_PHYSICAL_ADDR on 64 bits x86, boot: make symbols from the main vmlinux available x86, boot: determine compressed code offset at compile time x86, boot: use appropriate rep string for move and clear x86, boot: zero EFLAGS on 32 bits x86, boot: set up the decompression stack as early as possible x86, boot: straighten out ranges to copy/zero in compressed/head*.S x86, boot: stylistic cleanups for boot/compressed/head_64.S ... Fixed trivial conflict in arch/x86/configs/x86_64_defconfig manually
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip由 Linus Torvalds 提交于
* 'irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (76 commits) x86, apic: Fix dummy apic read operation together with broken MP handling x86, apic: Restore irqs on fail paths x86: Print real IOAPIC version for x86-64 x86: enable_update_mptable should be a macro sparseirq: Allow early irq_desc allocation x86, io-apic: Don't mark pin_programmed early x86, irq: don't call mp_config_acpi_gsi() if update_mptable is not enabled x86, irq: update_mptable needs pci_routeirq x86: don't call read_apic_id if !cpu_has_apic x86, apic: introduce io_apic_irq_attr x86/pci: add 4 more return parameters to IO_APIC_get_PCI_irq_vector(), fix x86: read apic ID in the !acpi_lapic case x86: apic: Fixmap apic address even if apic disabled x86: display extended apic registers with print_local_APIC and cpu_debug code x86: read apic ID in the !acpi_lapic case x86: clean up and fix setup_clear/force_cpu_cap handling x86: apic: Check rev 3 fadt correctly for physical_apic bit x86/pci: update pirq_enable_irq() to setup io apic routing x86/acpi: move setup io apic routing out of CONFIG_ACPI scope x86/pci: add 4 more return parameters to IO_APIC_get_PCI_irq_vector() ...
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由 Harald Welte 提交于
The e_powersaver driver for VIA's C7 CPU's needs to be marked as DANGEROUS as it configures the CPU to power states that are out of specification. According to Centaur, all systems with C7 and Nano CPU's support the ACPI p-state method. Thus, the acpi-cpufreq driver should be used instead. Signed-off-by: NHarald Welte <HaraldWelte@viatech.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Harald Welte 提交于
The VIA/Centaur C7, C7-M and Nano CPU's all support ACPI based cpu p-states using a MSR interface. The Linux driver just never made use of it, since in addition to the check for the EST flag it also checked if the vendor is Intel. Signed-off-by: NHarald Welte <HaraldWelte@viatech.com> [ Removed the vendor checks entirely - Linus ] Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Steven Rostedt 提交于
By moving the macro that creates the print format code above the defining of the event macro helpers (__get_str, __print_symbolic, and __get_dynamic_array), we get a little cleaner print format. Instead of: (char *)((void *)REC + REC->__data_loc_name) we get: __get_str(name) Instead of: ({ static const struct trace_print_flags symbols[] = { { HI_SOFTIRQ, "HI" }, { we get: __print_symbolic(REC->vec, { HI_SOFTIRQ, "HI" }, { Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
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由 Mike Frysinger 提交于
The function graph tracer is called just "function_graph" (no trailing "_tracer" needed). Signed-off-by: NMike Frysinger <vapier@gentoo.org> LKML-Reference: <1244623722-6325-1-git-send-email-vapier@gentoo.org> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
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- 10 6月, 2009 6 次提交
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由 Li Zefan 提交于
Fix building failures when CONFIG_BLOCK == n. Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com> LKML-Reference: <4A2F1520.8020003@cn.fujitsu.com> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Benjamin Herrenschmidt 提交于
This was only defined with CONFIG_DEBUG_SPINLOCK set, but some obscure arch/powerpc code wants it always. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <new-submission> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Linus Torvalds 提交于
This helps with bad latencies for large reads from /dev/zero, but might conceivably break some application that "knows" that a read of /dev/zero cannot return early. So do this early in the merge window to give us maximal test coverage, even if the patch is totally trivial. Obviously, no well-behaved application should ever depend on the read being uninterruptible, but hey, bugs happen. Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Linus Torvalds 提交于
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由 Peter Botha 提交于
There's a bug in the mxser kernel module that still appears in the 2.6.29.4 kernel. mxser_get_ISA_conf takes a ioaddress as its first argument, by passing the not of the ioaddr, you're effectively passing 0 which means it won't be able to talk to an ISA card. I have tested this, and removing the ! fixes the problem. Cc: "Peter Botha" <peterb@goldcircle.co.za> Signed-off-by: NJiri Slaby <jirislaby@gmail.com> Acked-by: NAlan Cox <alan@lxorguk.ukuu.org.uk> Cc: <stable@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jan Kara 提交于
In commit code, we scan buffers attached to a transaction. During this scan, we sometimes have to drop j_list_lock and then we recheck whether the journal buffer head didn't get freed by journal_try_to_free_buffers(). But checking for buffer_jbd(bh) isn't enough because a new journal head could get attached to our buffer head. So add a check whether the journal head remained the same and whether it's still at the same transaction and list. This is a nasty bug and can cause problems like memory corruption (use after free) or trigger various assertions in JBD code (observed). Signed-off-by: NJan Kara <jack@suse.cz> Cc: <stable@kernel.org> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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