From e6a48b3e560b2e046d4dd5b8a8805caf00044aa6 Mon Sep 17 00:00:00 2001 From: Tad Date: Wed, 28 Oct 2015 10:31:20 -0400 Subject: [PATCH] Linux 3.4.109 -> 3.4.110 --- Documentation/networking/pktgen.txt | 77 +++++++++++++-------- Makefile | 2 +- arch/arm/net/bpf_jit_32.c | 2 +- arch/s390/crypto/ghash_s390.c | 2 +- arch/x86/include/asm/kvm_host.h | 2 +- arch/x86/kvm/i8254.c | 2 +- arch/x86/kvm/lapic.c | 5 +- arch/x86/pci/acpi.c | 11 +++ drivers/acpi/acpica/utxface.c | 10 +-- drivers/base/regmap/regmap.c | 2 +- drivers/char/agp/intel-gtt.c | 2 +- drivers/crypto/talitos.c | 1 + drivers/dma/mv_xor.c | 72 ++++++++++++-------- drivers/dma/mv_xor.h | 1 + drivers/gpu/drm/i915/i915_gem.c | 3 + drivers/gpu/drm/radeon/evergreen.c | 2 +- drivers/gpu/drm/radeon/ni.c | 2 +- drivers/gpu/drm/radeon/r600.c | 2 +- drivers/gpu/drm/radeon/radeon_cs.c | 4 +- drivers/gpu/drm/radeon/radeon_irq_kms.c | 2 + drivers/gpu/drm/radeon/rv770.c | 2 +- drivers/gpu/drm/radeon/si.c | 2 +- drivers/infiniband/hw/qib/qib.h | 4 ++ drivers/infiniband/hw/qib/qib_keys.c | 4 ++ drivers/infiniband/hw/qib/qib_verbs.c | 14 ++-- drivers/infiniband/hw/qib/qib_verbs.h | 2 + drivers/mtd/maps/dc21285.c | 4 +- drivers/mtd/mtd_blkdevs.c | 5 ++ drivers/net/ethernet/stmicro/stmmac/descs.h | 2 + drivers/net/ethernet/stmicro/stmmac/enh_desc.c | 4 +- drivers/net/ethernet/stmicro/stmmac/norm_desc.c | 4 +- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 18 +++-- drivers/net/wireless/ath/ath9k/main.c | 13 ++-- drivers/net/wireless/rndis_wlan.c | 6 +- drivers/pcmcia/topic.h | 16 +++++ drivers/platform/x86/dell-laptop.c | 8 +-- drivers/platform/x86/ideapad-laptop.c | 3 +- drivers/regulator/core.c | 2 +- drivers/scsi/ipr.h | 2 +- drivers/staging/rtl8712/rtl8712_recv.c | 3 +- drivers/tty/serial/atmel_serial.c | 11 +-- drivers/usb/core/hub.c | 81 +++++++++-------------- drivers/watchdog/omap_wdt.c | 7 ++ fs/dcache.c | 10 +++ fs/ext4/indirect.c | 2 +- fs/ext4/inode.c | 22 +++++- fs/ext4/super.c | 1 + fs/fuse/inode.c | 2 +- fs/jbd2/checkpoint.c | 46 ++++++++++--- fs/jbd2/commit.c | 2 +- fs/jbd2/journal.c | 49 +++++++++++--- fs/namei.c | 29 +++++++- fs/nfs/nfs3xdr.c | 2 +- fs/nfs/nfs4state.c | 2 + include/acpi/actypes.h | 1 + include/linux/jbd2.h | 7 +- include/linux/nfs_xdr.h | 2 +- include/net/sctp/structs.h | 5 ++ kernel/hrtimer.c | 12 +++- kernel/rcutiny.c | 5 ++ kernel/trace/trace_events_filter.c | 10 ++- lib/bitmap.c | 17 ++--- mm/kmemleak.c | 19 +++++- net/9p/client.c | 3 +- net/bridge/br_ioctl.c | 2 - net/bridge/br_multicast.c | 5 ++ net/bridge/br_stp_if.c | 4 +- net/ceph/osdmap.c | 2 +- net/core/pktgen.c | 2 +- net/packet/af_packet.c | 20 +----- net/sctp/socket.c | 43 +++++++++--- net/sunrpc/backchannel_rqst.c | 2 +- sound/soc/codecs/wm8737.c | 6 +- sound/soc/codecs/wm8903.h | 2 +- sound/soc/codecs/wm8955.c | 2 +- sound/soc/codecs/wm8960.c | 2 +- 76 files changed, 511 insertions(+), 252 deletions(-) diff --git a/Documentation/networking/pktgen.txt b/Documentation/networking/pktgen.txt index 75e4fd7..a03239c 100644 --- a/Documentation/networking/pktgen.txt +++ b/Documentation/networking/pktgen.txt @@ -24,17 +24,33 @@ For monitoring and control pktgen creates: /proc/net/pktgen/ethX -Viewing threads -=============== -/proc/net/pktgen/kpktgend_0 -Name: kpktgend_0 max_before_softirq: 10000 -Running: -Stopped: eth1 -Result: OK: max_before_softirq=10000 +Kernel threads +============== +Pktgen creates a thread for each CPU with affinity to that CPU. +Which is controlled through procfile /proc/net/pktgen/kpktgend_X. + +Example: /proc/net/pktgen/kpktgend_0 + + Running: + Stopped: eth4@0 + Result: OK: add_device=eth4@0 + +Most important are the devices assigned to the thread. -Most important the devices assigned to thread. Note! A device can only belong -to one thread. +The two basic thread commands are: + * add_device DEVICE@NAME -- adds a single device + * rem_device_all -- remove all associated devices +When adding a device to a thread, a corrosponding procfile is created +which is used for configuring this device. Thus, device names need to +be unique. + +To support adding the same device to multiple threads, which is useful +with multi queue NICs, a the device naming scheme is extended with "@": + device@something + +The part after "@" can be anything, but it is custom to use the thread +number. Viewing devices =============== @@ -42,29 +58,32 @@ Viewing devices Parm section holds configured info. Current hold running stats. Result is printed after run or after interruption. Example: -/proc/net/pktgen/eth1 +/proc/net/pktgen/eth4@0 -Params: count 10000000 min_pkt_size: 60 max_pkt_size: 60 - frags: 0 delay: 0 clone_skb: 1000000 ifname: eth1 + Params: count 100000 min_pkt_size: 60 max_pkt_size: 60 + frags: 0 delay: 0 clone_skb: 64 ifname: eth4@0 flows: 0 flowlen: 0 - dst_min: 10.10.11.2 dst_max: - src_min: src_max: - src_mac: 00:00:00:00:00:00 dst_mac: 00:04:23:AC:FD:82 - udp_src_min: 9 udp_src_max: 9 udp_dst_min: 9 udp_dst_max: 9 - src_mac_count: 0 dst_mac_count: 0 - Flags: -Current: - pkts-sofar: 10000000 errors: 39664 - started: 1103053986245187us stopped: 1103053999346329us idle: 880401us - seq_num: 10000011 cur_dst_mac_offset: 0 cur_src_mac_offset: 0 - cur_saddr: 0x10a0a0a cur_daddr: 0x20b0a0a - cur_udp_dst: 9 cur_udp_src: 9 + queue_map_min: 0 queue_map_max: 0 + dst_min: 192.168.81.2 dst_max: + src_min: src_max: + src_mac: 90:e2:ba:0a:56:b4 dst_mac: 00:1b:21:3c:9d:f8 + udp_src_min: 9 udp_src_max: 109 udp_dst_min: 9 udp_dst_max: 9 + src_mac_count: 0 dst_mac_count: 0 + Flags: UDPSRC_RND NO_TIMESTAMP QUEUE_MAP_CPU + Current: + pkts-sofar: 100000 errors: 0 + started: 623913381008us stopped: 623913396439us idle: 25us + seq_num: 100001 cur_dst_mac_offset: 0 cur_src_mac_offset: 0 + cur_saddr: 192.168.8.3 cur_daddr: 192.168.81.2 + cur_udp_dst: 9 cur_udp_src: 42 + cur_queue_map: flows: 0 -Result: OK: 13101142(c12220741+d880401) usec, 10000000 (60byte,0frags) - 763292pps 390Mb/sec (390805504bps) errors: 39664 + Result: OK: 15430(c15405d25) usec, 100000 (60byte,0frags) + 6480562pps 3110Mb/sec (3110669760bps) errors: 0 -Configuring threads and devices -================================ + +Configuring devices +=================== This is done via the /proc interface easiest done via pgset in the scripts Examples: @@ -177,6 +196,8 @@ Note when adding devices to a specific CPU there good idea to also assign /proc/irq/XX/smp_affinity so the TX-interrupts gets bound to the same CPU. as this reduces cache bouncing when freeing skb's. +Plus using the device flag QUEUE_MAP_CPU, which maps the SKBs TX queue +to the running threads CPU (directly from smp_processor_id()). Current commands and configuration options ========================================== diff --git a/Makefile b/Makefile index ad126daa..45ff15e 100644 --- a/Makefile +++ b/Makefile @@ -1,6 +1,6 @@ VERSION = 3 PATCHLEVEL = 4 -SUBLEVEL = 109 +SUBLEVEL = 110 EXTRAVERSION = NAME = Saber-toothed Squirrel diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c index ad94145..77026415 100644 --- a/arch/arm/net/bpf_jit_32.c +++ b/arch/arm/net/bpf_jit_32.c @@ -899,7 +899,7 @@ void bpf_jit_compile(struct sk_filter *fp) if (ctx.imm_count) kfree(ctx.imms); #endif - bpf_jit_binary_free(header); + module_free(NULL, ctx.target); goto out; } build_epilogue(&ctx); diff --git a/arch/s390/crypto/ghash_s390.c b/arch/s390/crypto/ghash_s390.c index c2dac2e..69b5a4b 100644 --- a/arch/s390/crypto/ghash_s390.c +++ b/arch/s390/crypto/ghash_s390.c @@ -115,7 +115,7 @@ static int ghash_final(struct shash_desc *desc, u8 *dst) struct ghash_desc_ctx *dctx = shash_desc_ctx(desc); ghash_flush(dctx); - memcpy(dst, dtx->icv, GHASH_BLOCK_SIZE); + memcpy(dst, dctx->icv, GHASH_BLOCK_SIZE); return 0; } diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 4f78757..d60facb 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -509,7 +509,7 @@ struct kvm_arch { struct kvm_pic *vpic; struct kvm_ioapic *vioapic; struct kvm_pit *vpit; - int vapics_in_nmi_mode; + atomic_t vapics_in_nmi_mode; unsigned int tss_addr; struct page *apic_access_page; diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c index db336f9..eaad49a 100644 --- a/arch/x86/kvm/i8254.c +++ b/arch/x86/kvm/i8254.c @@ -317,7 +317,7 @@ static void pit_do_work(struct work_struct *work) * LVT0 to NMI delivery. Other PIC interrupts are just sent to * VCPU0, and only if its LVT0 is in EXTINT mode. */ - if (kvm->arch.vapics_in_nmi_mode > 0) + if (atomic_read(&kvm->arch.vapics_in_nmi_mode) > 0) kvm_for_each_vcpu(i, vcpu, kvm) kvm_apic_nmi_wd_deliver(vcpu); } diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index 578613d..53454a6 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -761,10 +761,10 @@ static void apic_manage_nmi_watchdog(struct kvm_lapic *apic, u32 lvt0_val) if (!nmi_wd_enabled) { apic_debug("Receive NMI setting on APIC_LVT0 " "for cpu %d\n", apic->vcpu->vcpu_id); - apic->vcpu->kvm->arch.vapics_in_nmi_mode++; + atomic_inc(&apic->vcpu->kvm->arch.vapics_in_nmi_mode); } } else if (nmi_wd_enabled) - apic->vcpu->kvm->arch.vapics_in_nmi_mode--; + atomic_dec(&apic->vcpu->kvm->arch.vapics_in_nmi_mode); } static int apic_reg_write(struct kvm_lapic *apic, u32 reg, u32 val) @@ -1257,6 +1257,7 @@ void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu) apic_update_ppr(apic); hrtimer_cancel(&apic->lapic_timer.timer); + apic_manage_nmi_watchdog(apic, apic_get_reg(apic, APIC_LVT0)); update_divide_count(apic); start_apic_timer(apic); apic->irr_pending = true; diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index ed2835e..65cf4f2 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -70,6 +70,17 @@ static const struct dmi_system_id pci_use_crs_table[] __initconst = { DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies, LTD"), }, }, + /* https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/931368 */ + /* https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1033299 */ + { + .callback = set_use_crs, + .ident = "Foxconn K8M890-8237A", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Foxconn"), + DMI_MATCH(DMI_BOARD_NAME, "K8M890-8237A"), + DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies, LTD"), + }, + }, /* Now for the blacklist.. */ diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c index afa94f5..0985ab7 100644 --- a/drivers/acpi/acpica/utxface.c +++ b/drivers/acpi/acpica/utxface.c @@ -166,10 +166,12 @@ acpi_status acpi_enable_subsystem(u32 flags) * Obtain a permanent mapping for the FACS. This is required for the * Global Lock and the Firmware Waking Vector */ - status = acpi_tb_initialize_facs(); - if (ACPI_FAILURE(status)) { - ACPI_WARNING((AE_INFO, "Could not map the FACS table")); - return_ACPI_STATUS(status); + if (!(flags & ACPI_NO_FACS_INIT)) { + status = acpi_tb_initialize_facs(); + if (ACPI_FAILURE(status)) { + ACPI_WARNING((AE_INFO, "Could not map the FACS table")); + return_ACPI_STATUS(status); + } } #endif /* !ACPI_REDUCED_HARDWARE */ diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 8e81f85..0ac67ac 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -784,7 +784,7 @@ int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val, ret = regmap_read(map, reg + i, &ival); if (ret != 0) return ret; - memcpy(val + (i * val_bytes), &ival, val_bytes); + map->format.format_val(val + (i * val_bytes), ival); } } diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c index 7f025fb..4e985cd 100644 --- a/drivers/char/agp/intel-gtt.c +++ b/drivers/char/agp/intel-gtt.c @@ -1194,7 +1194,7 @@ static inline int needs_idle_maps(void) /* Query intel_iommu to see if we need the workaround. Presumably that * was loaded first. */ - if ((gpu_devid == PCI_DEVICE_ID_INTEL_IRONLAKE_M_HB || + if ((gpu_devid == PCI_DEVICE_ID_INTEL_IRONLAKE_D_IG || gpu_devid == PCI_DEVICE_ID_INTEL_IRONLAKE_M_IG) && intel_iommu_gfx_mapped) return 1; diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index 921039e..a759fdc 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -2653,6 +2653,7 @@ static struct talitos_crypto_alg *talitos_alg_alloc(struct device *dev, break; default: dev_err(dev, "unknown algorithm type %d\n", t_alg->algt.type); + kfree(t_alg); return ERR_PTR(-EINVAL); } diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c index fa5d55f..c8fecbc 100644 --- a/drivers/dma/mv_xor.c +++ b/drivers/dma/mv_xor.c @@ -390,7 +390,8 @@ static void __mv_xor_slot_cleanup(struct mv_xor_chan *mv_chan) dma_cookie_t cookie = 0; int busy = mv_chan_is_busy(mv_chan); u32 current_desc = mv_chan_get_current_desc(mv_chan); - int seen_current = 0; + int current_cleaned = 0; + struct mv_xor_desc *hw_desc; dev_dbg(mv_chan->device->common.dev, "%s %d\n", __func__, __LINE__); dev_dbg(mv_chan->device->common.dev, "current_desc %x\n", current_desc); @@ -402,38 +403,57 @@ static void __mv_xor_slot_cleanup(struct mv_xor_chan *mv_chan) list_for_each_entry_safe(iter, _iter, &mv_chan->chain, chain_node) { - prefetch(_iter); - prefetch(&_iter->async_tx); - /* do not advance past the current descriptor loaded into the - * hardware channel, subsequent descriptors are either in - * process or have not been submitted - */ - if (seen_current) - break; + /* clean finished descriptors */ + hw_desc = iter->hw_desc; + if (hw_desc->status & XOR_DESC_SUCCESS) { + cookie = mv_xor_run_tx_complete_actions(iter, mv_chan, + cookie); - /* stop the search if we reach the current descriptor and the - * channel is busy - */ - if (iter->async_tx.phys == current_desc) { - seen_current = 1; - if (busy) + /* done processing desc, clean slot */ + mv_xor_clean_slot(iter, mv_chan); + + /* break if we did cleaned the current */ + if (iter->async_tx.phys == current_desc) { + current_cleaned = 1; + break; + } + } else { + if (iter->async_tx.phys == current_desc) { + current_cleaned = 0; break; + } } - - cookie = mv_xor_run_tx_complete_actions(iter, mv_chan, cookie); - - if (mv_xor_clean_slot(iter, mv_chan)) - break; } if ((busy == 0) && !list_empty(&mv_chan->chain)) { - struct mv_xor_desc_slot *chain_head; - chain_head = list_entry(mv_chan->chain.next, - struct mv_xor_desc_slot, - chain_node); - - mv_xor_start_new_chain(mv_chan, chain_head); + if (current_cleaned) { + /* + * current descriptor cleaned and removed, run + * from list head + */ + iter = list_entry(mv_chan->chain.next, + struct mv_xor_desc_slot, + chain_node); + mv_xor_start_new_chain(mv_chan, iter); + } else { + if (!list_is_last(&iter->chain_node, &mv_chan->chain)) { + /* + * descriptors are still waiting after + * current, trigger them + */ + iter = list_entry(iter->chain_node.next, + struct mv_xor_desc_slot, + chain_node); + mv_xor_start_new_chain(mv_chan, iter); + } else { + /* + * some descriptors are still waiting + * to be cleaned + */ + tasklet_schedule(&mv_chan->irq_tasklet); + } + } } if (cookie > 0) diff --git a/drivers/dma/mv_xor.h b/drivers/dma/mv_xor.h index 654876b..0af0377 100644 --- a/drivers/dma/mv_xor.h +++ b/drivers/dma/mv_xor.h @@ -30,6 +30,7 @@ #define XOR_OPERATION_MODE_XOR 0 #define XOR_OPERATION_MODE_MEMCPY 2 #define XOR_OPERATION_MODE_MEMSET 4 +#define XOR_DESC_SUCCESS 0x40000000 #define XOR_CURR_DESC(chan) (chan->mmr_base + 0x210 + (chan->idx * 4)) #define XOR_NEXT_DESC(chan) (chan->mmr_base + 0x200 + (chan->idx * 4)) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index e1c744d..b1f1d10 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1779,6 +1779,9 @@ i915_gem_retire_requests_ring(struct intel_ring_buffer *ring) uint32_t seqno; int i; + if (list_empty(&ring->request_list)) + return; + WARN_ON(i915_verify_lists(ring->dev)); seqno = ring->get_seqno(ring); diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index db4df97..c5fe79e 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -1079,7 +1079,7 @@ int evergreen_pcie_gart_enable(struct radeon_device *rdev) WREG32(MC_VM_MB_L1_TLB2_CNTL, tmp); WREG32(MC_VM_MB_L1_TLB3_CNTL, tmp); WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, rdev->mc.gtt_start >> 12); - WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, (rdev->mc.gtt_end >> 12) - 1); + WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, rdev->mc.gtt_end >> 12); WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, rdev->gart.table_addr >> 12); WREG32(VM_CONTEXT0_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) | RANGE_PROTECTION_FAULT_ENABLE_DEFAULT); diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index 1f45179..461262e 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -1075,7 +1075,7 @@ int cayman_pcie_gart_enable(struct radeon_device *rdev) L2_CACHE_BIGK_FRAGMENT_SIZE(6)); /* setup context0 */ WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, rdev->mc.gtt_start >> 12); - WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, (rdev->mc.gtt_end >> 12) - 1); + WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, rdev->mc.gtt_end >> 12); WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, rdev->gart.table_addr >> 12); WREG32(VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR, (u32)(rdev->dummy_page.addr >> 12)); diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index d441aed..9c7062d 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -930,7 +930,7 @@ int r600_pcie_gart_enable(struct radeon_device *rdev) WREG32(MC_VM_L1_TLB_MCB_RD_SEM_CNTL, tmp | ENABLE_SEMAPHORE_MODE); WREG32(MC_VM_L1_TLB_MCB_WR_SEM_CNTL, tmp | ENABLE_SEMAPHORE_MODE); WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, rdev->mc.gtt_start >> 12); - WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, (rdev->mc.gtt_end >> 12) - 1); + WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, rdev->mc.gtt_end >> 12); WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, rdev->gart.table_addr >> 12); WREG32(VM_CONTEXT0_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) | RANGE_PROTECTION_FAULT_ENABLE_DEFAULT); diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c index d66d2cd..f3ee360 100644 --- a/drivers/gpu/drm/radeon/radeon_cs.c +++ b/drivers/gpu/drm/radeon/radeon_cs.c @@ -49,7 +49,7 @@ int radeon_cs_parser_relocs(struct radeon_cs_parser *p) if (p->relocs_ptr == NULL) { return -ENOMEM; } - p->relocs = drm_calloc_large(p->nrelocs, sizeof(struct radeon_bo_list)); + p->relocs = kcalloc(p->nrelocs, sizeof(struct radeon_cs_reloc), GFP_KERNEL); if (p->relocs == NULL) { return -ENOMEM; } @@ -324,7 +324,7 @@ static void radeon_cs_parser_fini(struct radeon_cs_parser *parser, int error) } } kfree(parser->track); - drm_free_large(parser->relocs); + kfree(parser->relocs); kfree(parser->relocs_ptr); for (i = 0; i < parser->nchunks; i++) { kfree(parser->chunks[i].kdata); diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c index 645dcbf..77c456d 100644 --- a/drivers/gpu/drm/radeon/radeon_irq_kms.c +++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c @@ -51,10 +51,12 @@ static void radeon_hotplug_work_func(struct work_struct *work) struct drm_mode_config *mode_config = &dev->mode_config; struct drm_connector *connector; + mutex_lock(&mode_config->mutex); if (mode_config->num_connector) { list_for_each_entry(connector, &mode_config->connector_list, head) radeon_connector_hotplug(connector); } + mutex_unlock(&mode_config->mutex); /* Just fire off a uevent and let userspace tell us what to do */ drm_helper_hpd_irq_event(dev); } diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index 3358730..1ec1255 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -158,7 +158,7 @@ int rv770_pcie_gart_enable(struct radeon_device *rdev) WREG32(MC_VM_MB_L1_TLB2_CNTL, tmp); WREG32(MC_VM_MB_L1_TLB3_CNTL, tmp); WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, rdev->mc.gtt_start >> 12); - WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, (rdev->mc.gtt_end >> 12) - 1); + WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, rdev->mc.gtt_end >> 12); WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, rdev->gart.table_addr >> 12); WREG32(VM_CONTEXT0_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) | RANGE_PROTECTION_FAULT_ENABLE_DEFAULT); diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index 3b6e641..6609a23 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -2537,7 +2537,7 @@ int si_pcie_gart_enable(struct radeon_device *rdev) L2_CACHE_BIGK_FRAGMENT_SIZE(0)); /* setup context0 */ WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, rdev->mc.gtt_start >> 12); - WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, (rdev->mc.gtt_end >> 12) - 1); + WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, rdev->mc.gtt_end >> 12); WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, rdev->gart.table_addr >> 12); WREG32(VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR, (u32)(rdev->dummy_page.addr >> 12)); diff --git a/drivers/infiniband/hw/qib/qib.h b/drivers/infiniband/hw/qib/qib.h index c7d4ef1..dcff64f 100644 --- a/drivers/infiniband/hw/qib/qib.h +++ b/drivers/infiniband/hw/qib/qib.h @@ -1429,6 +1429,10 @@ extern struct mutex qib_mutex; qib_get_unit_name((dd)->unit), ##__VA_ARGS__); \ } while (0) +#define qib_dev_warn(dd, fmt, ...) \ + dev_warn(&(dd)->pcidev->dev, "%s: " fmt, \ + qib_get_unit_name((dd)->unit), ##__VA_ARGS__) + #define qib_dev_porterr(dd, port, fmt, ...) \ do { \ dev_err(&(dd)->pcidev->dev, "%s: IB%u:%u " fmt, \ diff --git a/drivers/infiniband/hw/qib/qib_keys.c b/drivers/infiniband/hw/qib/qib_keys.c index 8fd19a4..ca6e6cf 100644 --- a/drivers/infiniband/hw/qib/qib_keys.c +++ b/drivers/infiniband/hw/qib/qib_keys.c @@ -69,6 +69,10 @@ int qib_alloc_lkey(struct qib_lkey_table *rkt, struct qib_mregion *mr) * unrestricted LKEY. */ rkt->gen++; + /* + * bits are capped in qib_verbs.c to insure enough bits + * for generation number + */ mr->lkey = (r << (32 - ib_qib_lkey_table_size)) | ((((1 << (24 - ib_qib_lkey_table_size)) - 1) & rkt->gen) << 8); diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c index 7b6c3bf..395d9d6 100644 --- a/drivers/infiniband/hw/qib/qib_verbs.c +++ b/drivers/infiniband/hw/qib/qib_verbs.c @@ -40,6 +40,7 @@ #include #include #include +#include #include "qib.h" #include "qib_common.h" @@ -2058,10 +2059,16 @@ int qib_register_ib_device(struct qib_devdata *dd) * the LKEY). The remaining bits act as a generation number or tag. */ spin_lock_init(&dev->lk_table.lock); + /* insure generation is at least 4 bits see keys.c */ + if (ib_qib_lkey_table_size > MAX_LKEY_TABLE_BITS) { + qib_dev_warn(dd, "lkey bits %u too large, reduced to %u\n", + ib_qib_lkey_table_size, MAX_LKEY_TABLE_BITS); + ib_qib_lkey_table_size = MAX_LKEY_TABLE_BITS; + } dev->lk_table.max = 1 << ib_qib_lkey_table_size; lk_tab_size = dev->lk_table.max * sizeof(*dev->lk_table.table); dev->lk_table.table = (struct qib_mregion **) - __get_free_pages(GFP_KERNEL, get_order(lk_tab_size)); + vmalloc(lk_tab_size); if (dev->lk_table.table == NULL) { ret = -ENOMEM; goto err_lk; @@ -2231,7 +2238,7 @@ int qib_register_ib_device(struct qib_devdata *dd) sizeof(struct qib_pio_header), dev->pio_hdrs, dev->pio_hdrs_phys); err_hdrs: - free_pages((unsigned long) dev->lk_table.table, get_order(lk_tab_size)); + vfree(dev->lk_table.table); err_lk: kfree(dev->qp_table); err_qpt: @@ -2285,7 +2292,6 @@ void qib_unregister_ib_device(struct qib_devdata *dd) sizeof(struct qib_pio_header), dev->pio_hdrs, dev->pio_hdrs_phys); lk_tab_size = dev->lk_table.max * sizeof(*dev->lk_table.table); - free_pages((unsigned long) dev->lk_table.table, - get_order(lk_tab_size)); + vfree(dev->lk_table.table); kfree(dev->qp_table); } diff --git a/drivers/infiniband/hw/qib/qib_verbs.h b/drivers/infiniband/hw/qib/qib_verbs.h index 0c19ef0..66f7f62 100644 --- a/drivers/infiniband/hw/qib/qib_verbs.h +++ b/drivers/infiniband/hw/qib/qib_verbs.h @@ -622,6 +622,8 @@ struct qib_qpn_table { struct qpn_map map[QPNMAP_ENTRIES]; }; +#define MAX_LKEY_TABLE_BITS 23 + struct qib_lkey_table { spinlock_t lock; /* protect changes in this struct */ u32 next; /* next unused index (speeds search) */ diff --git a/drivers/mtd/maps/dc21285.c b/drivers/mtd/maps/dc21285.c index 080f060..86598a1 100644 --- a/drivers/mtd/maps/dc21285.c +++ b/drivers/mtd/maps/dc21285.c @@ -38,9 +38,9 @@ static void nw_en_write(void) * we want to write a bit pattern XXX1 to Xilinx to enable * the write gate, which will be open for about the next 2ms. */ - spin_lock_irqsave(&nw_gpio_lock, flags); + raw_spin_lock_irqsave(&nw_gpio_lock, flags); nw_cpld_modify(CPLD_FLASH_WR_ENABLE, CPLD_FLASH_WR_ENABLE); - spin_unlock_irqrestore(&nw_gpio_lock, flags); + raw_spin_unlock_irqrestore(&nw_gpio_lock, flags); /* * let the ISA bus to catch on... diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index 11c9dce..65dd2fd 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -214,6 +214,7 @@ static int blktrans_open(struct block_device *bdev, fmode_t mode) return -ERESTARTSYS; /* FIXME: busy loop! -arnd*/ mutex_lock(&dev->lock); + mutex_lock(&mtd_table_mutex); if (dev->open) goto unlock; @@ -237,6 +238,7 @@ static int blktrans_open(struct block_device *bdev, fmode_t mode) unlock: dev->open++; + mutex_unlock(&mtd_table_mutex); mutex_unlock(&dev->lock); blktrans_dev_put(dev); return ret; @@ -247,6 +249,7 @@ static int blktrans_open(struct block_device *bdev, fmode_t mode) error_put: module_put(dev->tr->owner); kref_put(&dev->ref, blktrans_dev_release); + mutex_unlock(&mtd_table_mutex); mutex_unlock(&dev->lock); blktrans_dev_put(dev); return ret; @@ -261,6 +264,7 @@ static int blktrans_release(struct gendisk *disk, fmode_t mode) return ret; mutex_lock(&dev->lock); + mutex_lock(&mtd_table_mutex); if (--dev->open) goto unlock; @@ -273,6 +277,7 @@ static int blktrans_release(struct gendisk *disk, fmode_t mode) __put_mtd_device(dev->mtd); } unlock: + mutex_unlock(&mtd_table_mutex); mutex_unlock(&dev->lock); blktrans_dev_put(dev); return ret; diff --git a/drivers/net/ethernet/stmicro/stmmac/descs.h b/drivers/net/ethernet/stmicro/stmmac/descs.h index 9820ec8..e93a0bf 100644 --- a/drivers/net/ethernet/stmicro/stmmac/descs.h +++ b/drivers/net/ethernet/stmicro/stmmac/descs.h @@ -153,6 +153,8 @@ struct dma_desc { u32 buffer2_size:13; u32 reserved4:3; } etx; /* -- enhanced -- */ + + u64 all_flags; } des01; unsigned int des2; unsigned int des3; diff --git a/drivers/net/ethernet/stmicro/stmmac/enh_desc.c b/drivers/net/ethernet/stmicro/stmmac/enh_desc.c index ad1b627..e0db6f6 100644 --- a/drivers/net/ethernet/stmicro/stmmac/enh_desc.c +++ b/drivers/net/ethernet/stmicro/stmmac/enh_desc.c @@ -232,6 +232,7 @@ static void enh_desc_init_rx_desc(struct dma_desc *p, unsigned int ring_size, { int i; for (i = 0; i < ring_size; i++) { + p->des01.all_flags = 0; p->des01.erx.own = 1; p->des01.erx.buffer1_size = BUF_SIZE_8KiB - 1; @@ -248,7 +249,7 @@ static void enh_desc_init_tx_desc(struct dma_desc *p, unsigned int ring_size) int i; for (i = 0; i < ring_size; i++) { - p->des01.etx.own = 0; + p->des01.all_flags = 0; ehn_desc_tx_set_on_ring_chain(p, (i == ring_size - 1)); p++; } @@ -271,6 +272,7 @@ static void enh_desc_set_tx_owner(struct dma_desc *p) static void enh_desc_set_rx_owner(struct dma_desc *p) { + p->des01.all_flags = 0; p->des01.erx.own = 1; } diff --git a/drivers/net/ethernet/stmicro/stmmac/norm_desc.c b/drivers/net/ethernet/stmicro/stmmac/norm_desc.c index 25953bb..9703340 100644 --- a/drivers/net/ethernet/stmicro/stmmac/norm_desc.c +++ b/drivers/net/ethernet/stmicro/stmmac/norm_desc.c @@ -126,6 +126,7 @@ static void ndesc_init_rx_desc(struct dma_desc *p, unsigned int ring_size, { int i; for (i = 0; i < ring_size; i++) { + p->des01.all_flags = 0; p->des01.rx.own = 1; p->des01.rx.buffer1_size = BUF_SIZE_2KiB - 1; @@ -141,7 +142,7 @@ static void ndesc_init_tx_desc(struct dma_desc *p, unsigned int ring_size) { int i; for (i = 0; i < ring_size; i++) { - p->des01.tx.own = 0; + p->des01.all_flags = 0; ndesc_tx_set_on_ring_chain(p, (i == (ring_size - 1))); p++; } @@ -164,6 +165,7 @@ static void ndesc_set_tx_owner(struct dma_desc *p) static void ndesc_set_rx_owner(struct dma_desc *p) { + p->des01.all_flags = 0; p->des01.rx.own = 1; } diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 9bdfaba..88c8645 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -424,19 +424,17 @@ static void init_dma_desc_rings(struct net_device *dev) priv->rx_skbuff = kmalloc(sizeof(struct sk_buff *) * rxsize, GFP_KERNEL); priv->dma_rx = - (struct dma_desc *)dma_alloc_coherent(priv->device, - rxsize * - sizeof(struct dma_desc), - &priv->dma_rx_phy, - GFP_KERNEL); + (struct dma_desc *)dma_zalloc_coherent(priv->device, rxsize * + sizeof(struct dma_desc), + &priv->dma_rx_phy, + GFP_KERNEL); priv->tx_skbuff = kmalloc(sizeof(struct sk_buff *) * txsize, GFP_KERNEL); priv->dma_tx = - (struct dma_desc *)dma_alloc_coherent(priv->device, - txsize * - sizeof(struct dma_desc), - &priv->dma_tx_phy, - GFP_KERNEL); + (struct dma_desc *)dma_zalloc_coherent(priv->device, txsize * + sizeof(struct dma_desc), + &priv->dma_tx_phy, + GFP_KERNEL); if ((priv->dma_rx == NULL) || (priv->dma_tx == NULL)) { pr_err("%s:ERROR allocating the DMA Tx/Rx desc\n", __func__); diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index ef26056..7e7bd15 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -235,7 +235,7 @@ static bool ath_prepare_reset(struct ath_softc *sc, bool retry_tx, bool flush) { struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); - bool ret; + bool ret = true; ieee80211_stop_queues(sc->hw); @@ -245,10 +245,13 @@ static bool ath_prepare_reset(struct ath_softc *sc, bool retry_tx, bool flush) ath9k_debug_samp_bb_mac(sc); ath9k_hw_disable_interrupts(ah); - ret = ath_drain_all_txq(sc, retry_tx); - - if (!ath_stoprecv(sc)) - ret = false; + if (AR_SREV_9300_20_OR_LATER(ah)) { + ret &= ath_stoprecv(sc); + ret &= ath_drain_all_txq(sc, retry_tx); + } else { + ret &= ath_drain_all_txq(sc, retry_tx); + ret &= ath_stoprecv(sc); + } if (!flush) { if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c index d66e298..414ac49 100644 --- a/drivers/net/wireless/rndis_wlan.c +++ b/drivers/net/wireless/rndis_wlan.c @@ -407,9 +407,9 @@ struct ndis_80211_pmkid { #define CAP_MODE_80211G 4 #define CAP_MODE_MASK 7 -#define WORK_LINK_UP (1<<0) -#define WORK_LINK_DOWN (1<<1) -#define WORK_SET_MULTICAST_LIST (1<<2) +#define WORK_LINK_UP 0 +#define WORK_LINK_DOWN 1 +#define WORK_SET_MULTICAST_LIST 2 #define RNDIS_WLAN_ALG_NONE 0 #define RNDIS_WLAN_ALG_WEP (1<<0) diff --git a/drivers/pcmcia/topic.h b/drivers/pcmcia/topic.h index 615a45a..582688fe 100644 --- a/drivers/pcmcia/topic.h +++ b/drivers/pcmcia/topic.h @@ -104,6 +104,9 @@ #define TOPIC_EXCA_IF_CONTROL 0x3e /* 8 bit */ #define TOPIC_EXCA_IFC_33V_ENA 0x01 +#define TOPIC_PCI_CFG_PPBCN 0x3e /* 16-bit */ +#define TOPIC_PCI_CFG_PPBCN_WBEN 0x0400 + static void topic97_zoom_video(struct pcmcia_socket *sock, int onoff) { struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); @@ -138,6 +141,7 @@ static int topic97_override(struct yenta_socket *socket) static int topic95_override(struct yenta_socket *socket) { u8 fctrl; + u16 ppbcn; /* enable 3.3V support for 16bit cards */ fctrl = exca_readb(socket, TOPIC_EXCA_IF_CONTROL); @@ -146,6 +150,18 @@ static int topic95_override(struct yenta_socket *socket) /* tell yenta to use exca registers to power 16bit cards */ socket->flags |= YENTA_16BIT_POWER_EXCA | YENTA_16BIT_POWER_DF; + /* Disable write buffers to prevent lockups under load with numerous + Cardbus cards, observed on Tecra 500CDT and reported elsewhere on the + net. This is not a power-on default according to the datasheet + but some BIOSes seem to set it. */ + if (pci_read_config_word(socket->dev, TOPIC_PCI_CFG_PPBCN, &ppbcn) == 0 + && socket->dev->revision <= 7 + && (ppbcn & TOPIC_PCI_CFG_PPBCN_WBEN)) { + ppbcn &= ~TOPIC_PCI_CFG_PPBCN_WBEN; + pci_write_config_word(socket->dev, TOPIC_PCI_CFG_PPBCN, ppbcn); + dev_info(&socket->dev->dev, "Disabled ToPIC95 Cardbus write buffers.\n"); + } + return 0; } diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c index e6c08ee..3d67591 100644 --- a/drivers/platform/x86/dell-laptop.c +++ b/drivers/platform/x86/dell-laptop.c @@ -216,7 +216,6 @@ static struct dmi_system_id __devinitdata dell_quirks[] = { }; static struct calling_interface_buffer *buffer; -static struct page *bufferpage; static DEFINE_MUTEX(buffer_mutex); static int hwswitch_state; @@ -714,11 +713,10 @@ static int __init dell_init(void) * Allocate buffer below 4GB for SMI data--only 32-bit physical addr * is passed to SMI handler. */ - bufferpage = alloc_page(GFP_KERNEL | GFP_DMA32); + buffer = (void *)__get_free_page(GFP_KERNEL | GFP_DMA32); - if (!bufferpage) + if (!buffer) goto fail_buffer; - buffer = page_address(bufferpage); ret = dell_setup_rfkill(); @@ -787,7 +785,7 @@ static int __init dell_init(void) fail_filter: dell_cleanup_rfkill(); fail_rfkill: - free_page((unsigned long)bufferpage); + free_page((unsigned long)buffer); fail_buffer: platform_device_del(platform_device); fail_platform_device2: diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c index ac902f7..34e9fcf 100644 --- a/drivers/platform/x86/ideapad-laptop.c +++ b/drivers/platform/x86/ideapad-laptop.c @@ -407,7 +407,8 @@ const struct ideapad_rfk_data ideapad_rfk_data[] = { static int ideapad_rfk_set(void *data, bool blocked) { - unsigned long opcode = (unsigned long)data; + unsigned long dev = (unsigned long)data; + int opcode = ideapad_rfk_data[dev].opcode; return write_ec_cmd(ideapad_handle, opcode, !blocked); } diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 98ccd6a..73fb775 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -779,7 +779,7 @@ static int suspend_prepare(struct regulator_dev *rdev, suspend_state_t state) static void print_constraints(struct regulator_dev *rdev) { struct regulation_constraints *constraints = rdev->constraints; - char buf[80] = ""; + char buf[160] = ""; int count = 0; int ret; diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h index 153b8bd..19ff8b2 100644 --- a/drivers/scsi/ipr.h +++ b/drivers/scsi/ipr.h @@ -251,7 +251,7 @@ #define IPR_RUNTIME_RESET 0x40000000 #define IPR_IPL_INIT_MIN_STAGE_TIME 5 -#define IPR_IPL_INIT_DEFAULT_STAGE_TIME 15 +#define IPR_IPL_INIT_DEFAULT_STAGE_TIME 30 #define IPR_IPL_INIT_STAGE_UNKNOWN 0x0 #define IPR_IPL_INIT_STAGE_TRANSOP 0xB0000000 #define IPR_IPL_INIT_STAGE_MASK 0xff000000 diff --git a/drivers/staging/rtl8712/rtl8712_recv.c b/drivers/staging/rtl8712/rtl8712_recv.c index 887a807..549b8ab 100644 --- a/drivers/staging/rtl8712/rtl8712_recv.c +++ b/drivers/staging/rtl8712/rtl8712_recv.c @@ -1074,7 +1074,8 @@ static int recvbuf2recvframe(struct _adapter *padapter, struct sk_buff *pskb) /* for first fragment packet, driver need allocate 1536 + * drvinfo_sz + RXDESC_SIZE to defrag packet. */ if ((mf == 1) && (frag == 0)) - alloc_sz = 1658;/*1658+6=1664, 1664 is 128 alignment.*/ + /*1658+6=1664, 1664 is 128 alignment.*/ + alloc_sz = max_t(u16, tmp_len, 1658); else alloc_sz = tmp_len; /* 2 is for IP header 4 bytes alignment in QoS packet case. diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index ff58d28..85c28e3 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -229,8 +229,7 @@ void atmel_config_rs485(struct uart_port *port, struct serial_rs485 *rs485conf) if (rs485conf->flags & SER_RS485_ENABLED) { dev_dbg(port->dev, "Setting UART to RS485\n"); atmel_port->tx_done_mask = ATMEL_US_TXEMPTY; - if ((rs485conf->delay_rts_after_send) > 0) - UART_PUT_TTGR(port, rs485conf->delay_rts_after_send); + UART_PUT_TTGR(port, rs485conf->delay_rts_after_send); mode |= ATMEL_US_USMODE_RS485; } else { dev_dbg(port->dev, "Setting UART to RS232\n"); @@ -305,9 +304,7 @@ static void atmel_set_mctrl(struct uart_port *port, u_int mctrl) if (atmel_port->rs485.flags & SER_RS485_ENABLED) { dev_dbg(port->dev, "Setting UART to RS485\n"); - if ((atmel_port->rs485.delay_rts_after_send) > 0) - UART_PUT_TTGR(port, - atmel_port->rs485.delay_rts_after_send); + UART_PUT_TTGR(port, atmel_port->rs485.delay_rts_after_send); mode |= ATMEL_US_USMODE_RS485; } else { dev_dbg(port->dev, "Setting UART to RS232\n"); @@ -1239,9 +1236,7 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios, if (atmel_port->rs485.flags & SER_RS485_ENABLED) { dev_dbg(port->dev, "Setting UART to RS485\n"); - if ((atmel_port->rs485.delay_rts_after_send) > 0) - UART_PUT_TTGR(port, - atmel_port->rs485.delay_rts_after_send); + UART_PUT_TTGR(port, atmel_port->rs485.delay_rts_after_send); mode |= ATMEL_US_USMODE_RS485; } else { dev_dbg(port->dev, "Setting UART to RS232\n"); diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 05564d2..068183f 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2257,9 +2257,6 @@ static unsigned hub_is_wusb(struct usb_hub *hub) #define HUB_LONG_RESET_TIME 200 #define HUB_RESET_TIMEOUT 800 -static int hub_port_reset(struct usb_hub *hub, int port1, - struct usb_device *udev, unsigned int delay, bool warm); - /* Is a USB 3.0 port in the Inactive or Complinance Mode state? * Port worm reset is required to recover */ @@ -2339,44 +2336,6 @@ static int hub_port_wait_reset(struct usb_hub *hub, int port1, return -EBUSY; } -static void hub_port_finish_reset(struct usb_hub *hub, int port1, - struct usb_device *udev, int *status) -{ - switch (*status) { - case 0: - /* TRSTRCY = 10 ms; plus some extra */ - msleep(10 + 40); - if (udev) { - struct usb_hcd *hcd = bus_to_hcd(udev->bus); - - update_devnum(udev, 0); - /* The xHC may think the device is already reset, - * so ignore the status. - */ - if (hcd->driver->reset_device) - hcd->driver->reset_device(hcd, udev); - } - /* FALL THROUGH */ - case -ENOTCONN: - case -ENODEV: - clear_port_feature(hub->hdev, - port1, USB_PORT_FEAT_C_RESET); - if (hub_is_superspeed(hub->hdev)) { - clear_port_feature(hub->hdev, port1, - USB_PORT_FEAT_C_BH_PORT_RESET); - clear_port_feature(hub->hdev, port1, - USB_PORT_FEAT_C_PORT_LINK_STATE); - clear_port_feature(hub->hdev, port1, - USB_PORT_FEAT_C_CONNECTION); - } - if (udev) - usb_set_device_state(udev, *status - ? USB_STATE_NOTATTACHED - : USB_STATE_DEFAULT); - break; - } -} - /* Handle port reset and port warm(BH) reset (for USB3 protocol ports) */ static int hub_port_reset(struct usb_hub *hub, int port1, struct usb_device *udev, unsigned int delay, bool warm) @@ -2399,13 +2358,9 @@ static int hub_port_reset(struct usb_hub *hub, int port1, * If the caller hasn't explicitly requested a warm reset, * double check and see if one is needed. */ - status = hub_port_status(hub, port1, - &portstatus, &portchange); - if (status < 0) - goto done; - - if (hub_port_warm_reset_required(hub, portstatus)) - warm = true; + if (hub_port_status(hub, port1, &portstatus, &portchange) == 0) + if (hub_port_warm_reset_required(hub, portstatus)) + warm = true; } /* Reset the port */ @@ -2428,11 +2383,19 @@ static int hub_port_reset(struct usb_hub *hub, int port1, /* Check for disconnect or reset */ if (status == 0 || status == -ENOTCONN || status == -ENODEV) { - hub_port_finish_reset(hub, port1, udev, &status); + clear_port_feature(hub->hdev, port1, + USB_PORT_FEAT_C_RESET); if (!hub_is_superspeed(hub->hdev)) goto done; + clear_port_feature(hub->hdev, port1, + USB_PORT_FEAT_C_BH_PORT_RESET); + clear_port_feature(hub->hdev, port1, + USB_PORT_FEAT_C_PORT_LINK_STATE); + clear_port_feature(hub->hdev, port1, + USB_PORT_FEAT_C_CONNECTION); + /* * If a USB 3.0 device migrates from reset to an error * state, re-issue the warm reset. @@ -2466,6 +2429,26 @@ static int hub_port_reset(struct usb_hub *hub, int port1, port1); done: + if (status == 0) { + /* TRSTRCY = 10 ms; plus some extra */ + msleep(10 + 40); + if (udev) { + struct usb_hcd *hcd = bus_to_hcd(udev->bus); + + update_devnum(udev, 0); + /* The xHC may think the device is already reset, + * so ignore the status. + */ + if (hcd->driver->reset_device) + hcd->driver->reset_device(hcd, udev); + + usb_set_device_state(udev, USB_STATE_DEFAULT); + } + } else { + if (udev) + usb_set_device_state(udev, USB_STATE_NOTATTACHED); + } + if (!hub_is_superspeed(hub->hdev)) up_read(&ehci_cf_port_reset_rwsem); diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c index 8285d65..c080be5 100644 --- a/drivers/watchdog/omap_wdt.c +++ b/drivers/watchdog/omap_wdt.c @@ -152,6 +152,13 @@ static int omap_wdt_open(struct inode *inode, struct file *file) pm_runtime_get_sync(wdev->dev); + /* + * Make sure the watchdog is disabled. This is unfortunately required + * because writing to various registers with the watchdog running has no + * effect. + */ + omap_wdt_disable(wdev); + /* initialize prescaler */ while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x01) cpu_relax(); diff --git a/fs/dcache.c b/fs/dcache.c index 09e2eda..9f8c58d 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -2510,6 +2510,8 @@ static int prepend_path(const struct path *path, struct dentry *dentry = path->dentry; struct vfsmount *vfsmnt = path->mnt; struct mount *mnt = real_mount(vfsmnt); + char *orig_buffer = *buffer; + int orig_len = *buflen; bool slash = false; int error = 0; @@ -2517,6 +2519,14 @@ static int prepend_path(const struct path *path, struct dentry * parent; if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) { + /* Escaped? */ + if (dentry != vfsmnt->mnt_root) { + *buffer = orig_buffer; + *buflen = orig_len; + slash = false; + error = 3; + goto global_root; + } /* Global root? */ if (!mnt_has_parent(mnt)) goto global_root; diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c index 6dc6153..f819837 100644 --- a/fs/ext4/indirect.c +++ b/fs/ext4/indirect.c @@ -705,7 +705,7 @@ int ext4_ind_map_blocks(handle_t *handle, struct inode *inode, EXT4_FEATURE_RO_COMPAT_BIGALLOC)) { EXT4_ERROR_INODE(inode, "Can't allocate blocks for " "non-extent mapped inodes with bigalloc"); - return -ENOSPC; + return -EUCLEAN; } goal = ext4_find_goal(inode, map->m_lblk, partial); diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index c68d3e1..9256acb 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -1848,18 +1848,32 @@ static int __ext4_journalled_writepage(struct page *page, page_bufs = page_buffers(page); BUG_ON(!page_bufs); walk_page_buffers(handle, page_bufs, 0, len, NULL, bget_one); - /* As soon as we unlock the page, it can go away, but we have - * references to buffers so we are safe */ + /* + * We need to release the page lock before we start the + * journal, so grab a reference so the page won't disappear + * out from under us. + */ + get_page(page); unlock_page(page); handle = ext4_journal_start(inode, ext4_writepage_trans_blocks(inode)); if (IS_ERR(handle)) { ret = PTR_ERR(handle); - goto out; + put_page(page); + goto out_no_pagelock; } BUG_ON(!ext4_handle_valid(handle)); + lock_page(page); + put_page(page); + if (page->mapping != mapping) { + /* The page got truncated from under us */ + ext4_journal_stop(handle); + ret = 0; + goto out; + } + ret = walk_page_buffers(handle, page_bufs, 0, len, NULL, do_journal_get_write_access); @@ -1875,6 +1889,8 @@ static int __ext4_journalled_writepage(struct page *page, walk_page_buffers(handle, page_bufs, 0, len, NULL, bput_one); ext4_set_inode_state(inode, EXT4_STATE_JDATA); out: + unlock_page(page); +out_no_pagelock: return ret; } diff --git a/fs/ext4/super.c b/fs/ext4/super.c index c222d25..c7875cb 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -889,6 +889,7 @@ static void ext4_put_super(struct super_block *sb) dump_orphan_list(sb, sbi); J_ASSERT(list_empty(&sbi->s_orphan)); + sync_blockdev(sb->s_bdev); invalidate_bdev(sb->s_bdev); if (sbi->journal_bdev && sbi->journal_bdev != sb->s_bdev) { /* diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index a5c8b34..d8bc0a8 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -981,6 +981,7 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent) goto err_fput; fuse_conn_init(fc); + fc->release = fuse_free_conn; fc->dev = sb->s_dev; fc->sb = sb; @@ -995,7 +996,6 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent) fc->dont_mask = 1; sb->s_flags |= MS_POSIXACL; - fc->release = fuse_free_conn; fc->flags = d.flags; fc->user_id = d.user_id; fc->group_id = d.group_id; diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c index c78841e..4fd7856 100644 --- a/fs/jbd2/checkpoint.c +++ b/fs/jbd2/checkpoint.c @@ -440,7 +440,7 @@ int jbd2_cleanup_journal_tail(journal_t *journal) unsigned long blocknr; if (is_journal_aborted(journal)) - return 1; + return -EIO; if (!jbd2_journal_get_log_tail(journal, &first_tid, &blocknr)) return 1; @@ -455,10 +455,9 @@ int jbd2_cleanup_journal_tail(journal_t *journal) * jbd2_cleanup_journal_tail() doesn't get called all that often. */ if (journal->j_flags & JBD2_BARRIER) - blkdev_issue_flush(journal->j_fs_dev, GFP_KERNEL, NULL); + blkdev_issue_flush(journal->j_fs_dev, GFP_NOFS, NULL); - __jbd2_update_log_tail(journal, first_tid, blocknr); - return 0; + return __jbd2_update_log_tail(journal, first_tid, blocknr); } @@ -468,14 +467,14 @@ int jbd2_cleanup_journal_tail(journal_t *journal) * journal_clean_one_cp_list * * Find all the written-back checkpoint buffers in the given list and - * release them. + * release them. If 'destroy' is set, clean all buffers unconditionally. * * Called with the journal locked. * Called with j_list_lock held. * Returns number of buffers reaped (for debug) */ -static int journal_clean_one_cp_list(struct journal_head *jh, int *released) +static int journal_clean_one_cp_list(struct journal_head *jh, int *released, bool destroy) { struct journal_head *last_jh; struct journal_head *next_jh = jh; @@ -489,7 +488,10 @@ static int journal_clean_one_cp_list(struct journal_head *jh, int *released) do { jh = next_jh; next_jh = jh->b_cpnext; - ret = __try_to_free_cp_buf(jh); + if (!destroy) + ret = __try_to_free_cp_buf(jh); + else + ret = __jbd2_journal_remove_checkpoint(jh) + 1; if (ret) { freed++; if (ret == 2) { @@ -515,12 +517,14 @@ static int journal_clean_one_cp_list(struct journal_head *jh, int *released) * * Find all the written-back checkpoint buffers in the journal and release them. * + * If 'destroy' is set, release all buffers unconditionally. + * * Called with the journal locked. * Called with j_list_lock held. * Returns number of buffers reaped (for debug) */ -int __jbd2_journal_clean_checkpoint_list(journal_t *journal) +int __jbd2_journal_clean_checkpoint_list(journal_t *journal, bool destroy) { transaction_t *transaction, *last_transaction, *next_transaction; int ret = 0; @@ -536,7 +540,7 @@ int __jbd2_journal_clean_checkpoint_list(journal_t *journal) transaction = next_transaction; next_transaction = transaction->t_cpnext; ret += journal_clean_one_cp_list(transaction-> - t_checkpoint_list, &released); + t_checkpoint_list, &released, destroy); /* * This function only frees up some memory if possible so we * dont have an obligation to finish processing. Bail out if @@ -552,7 +556,7 @@ int __jbd2_journal_clean_checkpoint_list(journal_t *journal) * we can possibly see not yet submitted buffers on io_list */ ret += journal_clean_one_cp_list(transaction-> - t_checkpoint_io_list, &released); + t_checkpoint_io_list, &released, destroy); if (need_resched()) goto out; } while (transaction != last_transaction); @@ -561,6 +565,28 @@ int __jbd2_journal_clean_checkpoint_list(journal_t *journal) } /* + * Remove buffers from all checkpoint lists as journal is aborted and we just + * need to free memory + */ +void jbd2_journal_destroy_checkpoint(journal_t *journal) +{ + /* + * We loop because __jbd2_journal_clean_checkpoint_list() may abort + * early due to a need of rescheduling. + */ + while (1) { + spin_lock(&journal->j_list_lock); + if (!journal->j_checkpoint_transactions) { + spin_unlock(&journal->j_list_lock); + break; + } + __jbd2_journal_clean_checkpoint_list(journal, true); + spin_unlock(&journal->j_list_lock); + cond_resched(); + } +} + +/* * journal_remove_checkpoint: called after a buffer has been committed * to disk (either by being write-back flushed to disk, or being * committed to the log). diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c index a0dcbd62..259f28d 100644 --- a/fs/jbd2/commit.c +++ b/fs/jbd2/commit.c @@ -438,7 +438,7 @@ void jbd2_journal_commit_transaction(journal_t *journal) * frees some memory */ spin_lock(&journal->j_list_lock); - __jbd2_journal_clean_checkpoint_list(journal); + __jbd2_journal_clean_checkpoint_list(journal, false); spin_unlock(&journal->j_list_lock); jbd_debug(3, "JBD2: commit phase 1\n"); diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index f697468..a327944 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -823,9 +823,10 @@ int jbd2_journal_get_log_tail(journal_t *journal, tid_t *tid, * * Requires j_checkpoint_mutex */ -void __jbd2_update_log_tail(journal_t *journal, tid_t tid, unsigned long block) +int __jbd2_update_log_tail(journal_t *journal, tid_t tid, unsigned long block) { unsigned long freed; + int ret; BUG_ON(!mutex_is_locked(&journal->j_checkpoint_mutex)); @@ -835,7 +836,10 @@ void __jbd2_update_log_tail(journal_t *journal, tid_t tid, unsigned long block) * space and if we lose sb update during power failure we'd replay * old transaction with possibly newly overwritten data. */ - jbd2_journal_update_sb_log_tail(journal, tid, block, WRITE_FUA); + ret = jbd2_journal_update_sb_log_tail(journal, tid, block, WRITE_FUA); + if (ret) + goto out; + write_lock(&journal->j_state_lock); freed = block - journal->j_tail; if (block < journal->j_tail) @@ -851,6 +855,9 @@ void __jbd2_update_log_tail(journal_t *journal, tid_t tid, unsigned long block) journal->j_tail_sequence = tid; journal->j_tail = block; write_unlock(&journal->j_state_lock); + +out: + return ret; } /* @@ -1264,7 +1271,7 @@ static int journal_reset(journal_t *journal) return jbd2_journal_start_thread(journal); } -static void jbd2_write_superblock(journal_t *journal, int write_op) +static int jbd2_write_superblock(journal_t *journal, int write_op) { struct buffer_head *bh = journal->j_sb_buffer; int ret; @@ -1301,7 +1308,10 @@ static void jbd2_write_superblock(journal_t *journal, int write_op) printk(KERN_ERR "JBD2: Error %d detected when updating " "journal superblock for %s.\n", ret, journal->j_devname); + jbd2_journal_abort(journal, ret); } + + return ret; } /** @@ -1314,10 +1324,11 @@ static void jbd2_write_superblock(journal_t *journal, int write_op) * Update a journal's superblock information about log tail and write it to * disk, waiting for the IO to complete. */ -void jbd2_journal_update_sb_log_tail(journal_t *journal, tid_t tail_tid, +int jbd2_journal_update_sb_log_tail(journal_t *journal, tid_t tail_tid, unsigned long tail_block, int write_op) { journal_superblock_t *sb = journal->j_superblock; + int ret; BUG_ON(!mutex_is_locked(&journal->j_checkpoint_mutex)); jbd_debug(1, "JBD2: updating superblock (start %lu, seq %u)\n", @@ -1326,13 +1337,18 @@ void jbd2_journal_update_sb_log_tail(journal_t *journal, tid_t tail_tid, sb->s_sequence = cpu_to_be32(tail_tid); sb->s_start = cpu_to_be32(tail_block); - jbd2_write_superblock(journal, write_op); + ret = jbd2_write_superblock(journal, write_op); + if (ret) + goto out; /* Log is no longer empty */ write_lock(&journal->j_state_lock); WARN_ON(!sb->s_sequence); journal->j_flags &= ~JBD2_FLUSHED; write_unlock(&journal->j_state_lock); + +out: + return ret; } /** @@ -1575,8 +1591,17 @@ int jbd2_journal_destroy(journal_t *journal) while (journal->j_checkpoint_transactions != NULL) { spin_unlock(&journal->j_list_lock); mutex_lock(&journal->j_checkpoint_mutex); - jbd2_log_do_checkpoint(journal); + err = jbd2_log_do_checkpoint(journal); mutex_unlock(&journal->j_checkpoint_mutex); + /* + * If checkpointing failed, just free the buffers to avoid + * looping forever + */ + if (err) { + jbd2_journal_destroy_checkpoint(journal); + spin_lock(&journal->j_list_lock); + break; + } spin_lock(&journal->j_list_lock); } @@ -1785,7 +1810,14 @@ int jbd2_journal_flush(journal_t *journal) return -EIO; mutex_lock(&journal->j_checkpoint_mutex); - jbd2_cleanup_journal_tail(journal); + if (!err) { + err = jbd2_cleanup_journal_tail(journal); + if (err < 0) { + mutex_unlock(&journal->j_checkpoint_mutex); + goto out; + } + err = 0; + } /* Finally, mark the journal as really needing no recovery. * This sets s_start==0 in the underlying superblock, which is @@ -1801,7 +1833,8 @@ int jbd2_journal_flush(journal_t *journal) J_ASSERT(journal->j_head == journal->j_tail); J_ASSERT(journal->j_tail_sequence == journal->j_transaction_sequence); write_unlock(&journal->j_state_lock); - return 0; +out: + return err; } /** diff --git a/fs/namei.c b/fs/namei.c index ba642f0..d7a1b84 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -399,6 +399,24 @@ void path_put(struct path *path) } EXPORT_SYMBOL(path_put); +/** + * path_connected - Verify that a path->dentry is below path->mnt.mnt_root + * @path: nameidate to verify + * + * Rename can sometimes move a file or directory outside of a bind + * mount, path_connected allows those cases to be detected. + */ +static bool path_connected(const struct path *path) +{ + struct vfsmount *mnt = path->mnt; + + /* Only bind mounts can have disconnected paths */ + if (mnt->mnt_root == mnt->mnt_sb->s_root) + return true; + + return is_subdir(path->dentry, mnt->mnt_root); +} + /* * Path walking has 2 modes, rcu-walk and ref-walk (see * Documentation/filesystems/path-lookup.txt). In situations when we can't @@ -947,6 +965,8 @@ static int follow_dotdot_rcu(struct nameidata *nd) goto failed; nd->path.dentry = parent; nd->seq = seq; + if (unlikely(!path_connected(&nd->path))) + goto failed; break; } if (!follow_up_rcu(&nd->path)) @@ -1031,7 +1051,7 @@ static void follow_mount(struct path *path) } } -static void follow_dotdot(struct nameidata *nd) +static int follow_dotdot(struct nameidata *nd) { if (!nd->root.mnt) set_root(nd); @@ -1047,6 +1067,10 @@ static void follow_dotdot(struct nameidata *nd) /* rare case of legitimate dget_parent()... */ nd->path.dentry = dget_parent(nd->path.dentry); dput(old); + if (unlikely(!path_connected(&nd->path))) { + path_put(&nd->path); + return -ENOENT; + } break; } if (!follow_up(&nd->path)) @@ -1054,6 +1078,7 @@ static void follow_dotdot(struct nameidata *nd) } follow_mount(&nd->path); nd->inode = nd->path.dentry->d_inode; + return 0; } /* @@ -1254,7 +1279,7 @@ static inline int handle_dots(struct nameidata *nd, int type) if (follow_dotdot_rcu(nd)) return -ECHILD; } else - follow_dotdot(nd); + return follow_dotdot(nd); } return 0; } diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c index a77cc9a..e60bbe2 100644 --- a/fs/nfs/nfs3xdr.c +++ b/fs/nfs/nfs3xdr.c @@ -1333,7 +1333,7 @@ static void nfs3_xdr_enc_setacl3args(struct rpc_rqst *req, if (args->npages != 0) xdr_write_pages(xdr, args->pages, 0, args->len); else - xdr_reserve_space(xdr, NFS_ACL_INLINE_BUFSIZE); + xdr_reserve_space(xdr, args->len); error = nfsacl_encode(xdr->buf, base, args->inode, (args->mask & NFS_ACL) ? diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index c4600b5..282af88 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -1279,6 +1279,8 @@ static int nfs4_reclaim_open_state(struct nfs4_state_owner *sp, const struct nfs } spin_unlock(&state->state_lock); nfs4_put_open_state(state); + clear_bit(NFS_STATE_RECLAIM_NOGRACE, + &state->flags); goto restart; } } diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h index 6d52429..0460073 100644 --- a/include/acpi/actypes.h +++ b/include/acpi/actypes.h @@ -495,6 +495,7 @@ typedef u64 acpi_integer; #define ACPI_NO_ACPI_ENABLE 0x10 #define ACPI_NO_DEVICE_INIT 0x20 #define ACPI_NO_OBJECT_INIT 0x40 +#define ACPI_NO_FACS_INIT 0x80 /* * Initialization state diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index 2ffbf99..2179d78 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -974,15 +974,16 @@ extern struct journal_head * jbd2_journal_get_descriptor_buffer(journal_t *); int jbd2_journal_next_log_block(journal_t *, unsigned long long *); int jbd2_journal_get_log_tail(journal_t *journal, tid_t *tid, unsigned long *block); -void __jbd2_update_log_tail(journal_t *journal, tid_t tid, unsigned long block); +int __jbd2_update_log_tail(journal_t *journal, tid_t tid, unsigned long block); void jbd2_update_log_tail(journal_t *journal, tid_t tid, unsigned long block); /* Commit management */ extern void jbd2_journal_commit_transaction(journal_t *); /* Checkpoint list management */ -int __jbd2_journal_clean_checkpoint_list(journal_t *journal); +int __jbd2_journal_clean_checkpoint_list(journal_t *journal, bool destroy); int __jbd2_journal_remove_checkpoint(struct journal_head *); +void jbd2_journal_destroy_checkpoint(journal_t *journal); void __jbd2_journal_insert_checkpoint(struct journal_head *, transaction_t *); @@ -1093,7 +1094,7 @@ extern int jbd2_journal_recover (journal_t *journal); extern int jbd2_journal_wipe (journal_t *, int); extern int jbd2_journal_skip_recovery (journal_t *); extern void jbd2_journal_update_sb_errno(journal_t *); -extern void jbd2_journal_update_sb_log_tail (journal_t *, tid_t, +extern int jbd2_journal_update_sb_log_tail (journal_t *, tid_t, unsigned long, int); extern void __jbd2_journal_abort_hard (journal_t *); extern void jbd2_journal_abort (journal_t *, int); diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 7ba3551..845b402 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -1061,7 +1061,7 @@ struct nfstime4 { }; #ifdef CONFIG_NFS_V4_1 -#define NFS4_EXCHANGE_ID_LEN (48) +#define NFS4_EXCHANGE_ID_LEN (127) struct nfs41_exchange_id_args { struct nfs_client *client; nfs4_verifier *verifier; diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 88949a9..4ea0ec6 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -209,6 +209,7 @@ extern struct sctp_globals { struct list_head addr_waitq; struct timer_list addr_wq_timer; struct list_head auto_asconf_splist; + /* Lock that protects both addr_waitq and auto_asconf_splist */ spinlock_t addr_wq_lock; /* Lock that protects the local_addr_list writers */ @@ -355,6 +356,10 @@ struct sctp_sock { atomic_t pd_mode; /* Receive to here while partial delivery is in effect. */ struct sk_buff_head pd_lobby; + + /* These must be the last fields, as they will skipped on copies, + * like on accept and peeloff operations + */ struct list_head auto_asconf_list; int do_auto_asconf; }; diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c index 3c9ca94..db4dc6b 100644 --- a/kernel/hrtimer.c +++ b/kernel/hrtimer.c @@ -854,6 +854,9 @@ u64 hrtimer_forward(struct hrtimer *timer, ktime_t now, ktime_t interval) if (delta.tv64 < 0) return 0; + if (WARN_ON(timer->state & HRTIMER_STATE_ENQUEUED)) + return 0; + if (interval.tv64 < timer->base->resolution.tv64) interval.tv64 = timer->base->resolution.tv64; @@ -1266,11 +1269,14 @@ static void __run_hrtimer(struct hrtimer *timer, ktime_t *now) * Note: We clear the CALLBACK bit after enqueue_hrtimer and * we do not reprogramm the event hardware. Happens either in * hrtimer_start_range_ns() or in hrtimer_interrupt() + * + * Note: Because we dropped the cpu_base->lock above, + * hrtimer_start_range_ns() can have popped in and enqueued the timer + * for us already. */ - if (restart != HRTIMER_NORESTART) { - BUG_ON(timer->state != HRTIMER_STATE_CALLBACK); + if (restart != HRTIMER_NORESTART && + !(timer->state & HRTIMER_STATE_ENQUEUED)) enqueue_hrtimer(timer, base); - } WARN_ON_ONCE(!(timer->state & HRTIMER_STATE_CALLBACK)); diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c index 37a5444..60a56f4 100644 --- a/kernel/rcutiny.c +++ b/kernel/rcutiny.c @@ -279,6 +279,11 @@ static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp) /* Move the ready-to-invoke callbacks to a local list. */ local_irq_save(flags); + if (rcp->donetail == &rcp->rcucblist) { + /* No callbacks ready, so just leave. */ + local_irq_restore(flags); + return; + } RCU_TRACE(trace_rcu_batch_start(rcp->name, 0, rcp->qlen, -1)); list = rcp->rcucblist; rcp->rcucblist = *rcp->donetail; diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c index 196f46b..b155328 100644 --- a/kernel/trace/trace_events_filter.c +++ b/kernel/trace/trace_events_filter.c @@ -1044,6 +1044,9 @@ static void parse_init(struct filter_parse_state *ps, static char infix_next(struct filter_parse_state *ps) { + if (!ps->infix.cnt) + return 0; + ps->infix.cnt--; return ps->infix.string[ps->infix.tail++]; @@ -1059,6 +1062,9 @@ static char infix_peek(struct filter_parse_state *ps) static void infix_advance(struct filter_parse_state *ps) { + if (!ps->infix.cnt) + return; + ps->infix.cnt--; ps->infix.tail++; } @@ -1372,7 +1378,9 @@ static int check_preds(struct filter_parse_state *ps) } cnt--; n_normal_preds++; - WARN_ON_ONCE(cnt < 0); + /* all ops should have operands */ + if (cnt < 0) + break; } if (cnt != 1 || !n_normal_preds || n_logical_preds >= n_normal_preds) { diff --git a/lib/bitmap.c b/lib/bitmap.c index b46ce02..3ed0f82 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c @@ -605,12 +605,12 @@ static int __bitmap_parselist(const char *buf, unsigned int buflen, unsigned a, b; int c, old_c, totaldigits; const char __user __force *ubuf = (const char __user __force *)buf; - int exp_digit, in_range; + int at_start, in_range; totaldigits = c = 0; bitmap_zero(maskp, nmaskbits); do { - exp_digit = 1; + at_start = 1; in_range = 0; a = b = 0; @@ -639,11 +639,10 @@ static int __bitmap_parselist(const char *buf, unsigned int buflen, break; if (c == '-') { - if (exp_digit || in_range) + if (at_start || in_range) return -EINVAL; b = 0; in_range = 1; - exp_digit = 1; continue; } @@ -653,16 +652,18 @@ static int __bitmap_parselist(const char *buf, unsigned int buflen, b = b * 10 + (c - '0'); if (!in_range) a = b; - exp_digit = 0; + at_start = 0; totaldigits++; } if (!(a <= b)) return -EINVAL; if (b >= nmaskbits) return -ERANGE; - while (a <= b) { - set_bit(a, maskp); - a++; + if (!at_start) { + while (a <= b) { + set_bit(a, maskp); + a++; + } } } while (buflen && c == ','); return 0; diff --git a/mm/kmemleak.c b/mm/kmemleak.c index ad6ee88..c74827c 100644 --- a/mm/kmemleak.c +++ b/mm/kmemleak.c @@ -193,6 +193,8 @@ static struct kmem_cache *scan_area_cache; /* set if tracing memory operations is enabled */ static atomic_t kmemleak_enabled = ATOMIC_INIT(0); +/* same as above but only for the kmemleak_free() callback */ +static int kmemleak_free_enabled; /* set in the late_initcall if there were no errors */ static atomic_t kmemleak_initialized = ATOMIC_INIT(0); /* enables or disables early logging of the memory operations */ @@ -936,7 +938,7 @@ void __ref kmemleak_free(const void *ptr) { pr_debug("%s(0x%p)\n", __func__, ptr); - if (atomic_read(&kmemleak_enabled) && ptr && !IS_ERR(ptr)) + if (kmemleak_free_enabled && ptr && !IS_ERR(ptr)) delete_object_full((unsigned long)ptr); else if (atomic_read(&kmemleak_early_log)) log_early(KMEMLEAK_FREE, ptr, 0, 0); @@ -976,7 +978,7 @@ void __ref kmemleak_free_percpu(const void __percpu *ptr) pr_debug("%s(0x%p)\n", __func__, ptr); - if (atomic_read(&kmemleak_enabled) && ptr && !IS_ERR(ptr)) + if (kmemleak_free_enabled && ptr && !IS_ERR(ptr)) for_each_possible_cpu(cpu) delete_object_full((unsigned long)per_cpu_ptr(ptr, cpu)); @@ -1690,6 +1692,13 @@ static void kmemleak_do_cleanup(struct work_struct *work) mutex_lock(&scan_mutex); stop_scan_thread(); + /* + * Once the scan thread has stopped, it is safe to no longer track + * object freeing. Ordering of the scan thread stopping and the memory + * accesses below is guaranteed by the kthread_stop() function. + */ + kmemleak_free_enabled = 0; + if (cleanup) { rcu_read_lock(); list_for_each_entry_rcu(object, &object_list, object_list) @@ -1717,6 +1726,8 @@ static void kmemleak_disable(void) /* check whether it is too early for a kernel thread */ if (atomic_read(&kmemleak_initialized)) schedule_work(&cleanup_work); + else + kmemleak_free_enabled = 0; pr_info("Kernel memory leak detector disabled\n"); } @@ -1782,8 +1793,10 @@ void __init kmemleak_init(void) if (atomic_read(&kmemleak_error)) { local_irq_restore(flags); return; - } else + } else { atomic_set(&kmemleak_enabled, 1); + kmemleak_free_enabled = 1; + } local_irq_restore(flags); /* diff --git a/net/9p/client.c b/net/9p/client.c index b23a17c..32df0a3 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -833,7 +833,8 @@ static struct p9_req_t *p9_client_zc_rpc(struct p9_client *c, int8_t type, if (err < 0) { if (err == -EIO) c->status = Disconnected; - goto reterr; + if (err != -ERESTARTSYS) + goto reterr; } if (req->status == REQ_STATUS_ERROR) { p9_debug(P9_DEBUG_ERROR, "req_status error %d\n", req->t_err); diff --git a/net/bridge/br_ioctl.c b/net/bridge/br_ioctl.c index 7222fe1..ea0e15c 100644 --- a/net/bridge/br_ioctl.c +++ b/net/bridge/br_ioctl.c @@ -246,9 +246,7 @@ static int old_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) if (!capable(CAP_NET_ADMIN)) return -EPERM; - spin_lock_bh(&br->lock); br_stp_set_bridge_priority(br, args[1]); - spin_unlock_bh(&br->lock); return 0; case BRCTL_SET_PORT_PRIORITY: diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index a41051a..87ae8c3 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -36,6 +36,9 @@ #define mlock_dereference(X, br) \ rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) +static void br_multicast_add_router(struct net_bridge *br, + struct net_bridge_port *port); + #if IS_ENABLED(CONFIG_IPV6) static inline int ipv6_is_transient_multicast(const struct in6_addr *addr) { @@ -842,6 +845,8 @@ void br_multicast_enable_port(struct net_bridge_port *port) goto out; __br_multicast_enable_port(port); + if (port->multicast_router == 2 && hlist_unhashed(&port->rlist)) + br_multicast_add_router(br, port); out: spin_unlock(&br->multicast_lock); diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c index 2f100cc..23ea159 100644 --- a/net/bridge/br_stp_if.c +++ b/net/bridge/br_stp_if.c @@ -242,12 +242,13 @@ bool br_stp_recalculate_bridge_id(struct net_bridge *br) return true; } -/* called under bridge lock */ +/* Acquires and releases bridge lock */ void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio) { struct net_bridge_port *p; int wasroot; + spin_lock_bh(&br->lock); wasroot = br_is_root_bridge(br); list_for_each_entry(p, &br->port_list, list) { @@ -265,6 +266,7 @@ void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio) br_port_state_selection(br); if (br_is_root_bridge(br) && !wasroot) br_become_root_bridge(br); + spin_unlock_bh(&br->lock); } /* called under bridge lock */ diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c index 7fbe210..d4fbcb6 100644 --- a/net/ceph/osdmap.c +++ b/net/ceph/osdmap.c @@ -102,7 +102,7 @@ static int crush_decode_tree_bucket(void **p, void *end, { int j; dout("crush_decode_tree_bucket %p to %p\n", *p, end); - ceph_decode_32_safe(p, end, b->num_nodes, bad); + ceph_decode_8_safe(p, end, b->num_nodes, bad); b->node_weights = kcalloc(b->num_nodes, sizeof(u32), GFP_NOFS); if (b->node_weights == NULL) return -ENOMEM; diff --git a/net/core/pktgen.c b/net/core/pktgen.c index 83d5a6a..e71766c 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -554,7 +554,7 @@ static int pktgen_if_show(struct seq_file *seq, void *v) " dst_min: %s dst_max: %s\n", pkt_dev->dst_min, pkt_dev->dst_max); seq_printf(seq, - " src_min: %s src_max: %s\n", + " src_min: %s src_max: %s\n", pkt_dev->src_min, pkt_dev->src_max); } diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 030bd3f..d678fda 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -1169,16 +1169,6 @@ static void packet_sock_destruct(struct sock *sk) sk_refcnt_debug_dec(sk); } -static int fanout_rr_next(struct packet_fanout *f, unsigned int num) -{ - int x = atomic_read(&f->rr_cur) + 1; - - if (x >= num) - x = 0; - - return x; -} - static struct sock *fanout_demux_hash(struct packet_fanout *f, struct sk_buff *skb, unsigned int num) { u32 idx, hash = skb->rxhash; @@ -1190,13 +1180,9 @@ static struct sock *fanout_demux_hash(struct packet_fanout *f, struct sk_buff *s static struct sock *fanout_demux_lb(struct packet_fanout *f, struct sk_buff *skb, unsigned int num) { - int cur, old; + unsigned int val = atomic_inc_return(&f->rr_cur); - cur = atomic_read(&f->rr_cur); - while ((old = atomic_cmpxchg(&f->rr_cur, cur, - fanout_rr_next(f, num))) != cur) - cur = old; - return f->arr[cur]; + return f->arr[val % num]; } static struct sock *fanout_demux_cpu(struct packet_fanout *f, struct sk_buff *skb, unsigned int num) @@ -1210,7 +1196,7 @@ static int packet_rcv_fanout(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev) { struct packet_fanout *f = pt->af_packet_priv; - unsigned int num = f->num_members; + unsigned int num = ACCESS_ONCE(f->num_members); struct packet_sock *po; struct sock *sk; diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 0c0bd2f..bc7b5de 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -1539,8 +1539,10 @@ SCTP_STATIC void sctp_close(struct sock *sk, long timeout) /* Supposedly, no process has access to the socket, but * the net layers still may. + * Also, sctp_destroy_sock() needs to be called with addr_wq_lock + * held and that should be grabbed before socket lock. */ - sctp_local_bh_disable(); + spin_lock_bh(&sctp_globals.addr_wq_lock); sctp_bh_lock_sock(sk); /* Hold the sock, since sk_common_release() will put sock_put() @@ -1550,7 +1552,7 @@ SCTP_STATIC void sctp_close(struct sock *sk, long timeout) sk_common_release(sk); sctp_bh_unlock_sock(sk); - sctp_local_bh_enable(); + spin_unlock_bh(&sctp_globals.addr_wq_lock); sock_put(sk); @@ -3492,6 +3494,7 @@ static int sctp_setsockopt_auto_asconf(struct sock *sk, char __user *optval, if ((val && sp->do_auto_asconf) || (!val && !sp->do_auto_asconf)) return 0; + spin_lock_bh(&sctp_globals.addr_wq_lock); if (val == 0 && sp->do_auto_asconf) { list_del(&sp->auto_asconf_list); sp->do_auto_asconf = 0; @@ -3500,6 +3503,7 @@ static int sctp_setsockopt_auto_asconf(struct sock *sk, char __user *optval, &sctp_auto_asconf_splist); sp->do_auto_asconf = 1; } + spin_unlock_bh(&sctp_globals.addr_wq_lock); return 0; } @@ -3935,18 +3939,28 @@ SCTP_STATIC int sctp_init_sock(struct sock *sk) local_bh_disable(); percpu_counter_inc(&sctp_sockets_allocated); sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1); + + /* Nothing can fail after this block, otherwise + * sctp_destroy_sock() will be called without addr_wq_lock held + */ if (sctp_default_auto_asconf) { + spin_lock(&sctp_globals.addr_wq_lock); list_add_tail(&sp->auto_asconf_list, &sctp_auto_asconf_splist); sp->do_auto_asconf = 1; - } else + spin_unlock(&sctp_globals.addr_wq_lock); + } else { sp->do_auto_asconf = 0; + } + local_bh_enable(); return 0; } -/* Cleanup any SCTP per socket resources. */ +/* Cleanup any SCTP per socket resources. Must be called with + * sctp_globals.addr_wq_lock held if sp->do_auto_asconf is true + */ SCTP_STATIC void sctp_destroy_sock(struct sock *sk) { struct sctp_sock *sp; @@ -6746,6 +6760,19 @@ void sctp_copy_sock(struct sock *newsk, struct sock *sk, newinet->mc_list = NULL; } +static inline void sctp_copy_descendant(struct sock *sk_to, + const struct sock *sk_from) +{ + int ancestor_size = sizeof(struct inet_sock) + + sizeof(struct sctp_sock) - + offsetof(struct sctp_sock, auto_asconf_list); + + if (sk_from->sk_family == PF_INET6) + ancestor_size += sizeof(struct ipv6_pinfo); + + __inet_sk_copy_descendant(sk_to, sk_from, ancestor_size); +} + /* Populate the fields of the newsk from the oldsk and migrate the assoc * and its messages to the newsk. */ @@ -6760,7 +6787,6 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk, struct sk_buff *skb, *tmp; struct sctp_ulpevent *event; struct sctp_bind_hashbucket *head; - struct list_head tmplist; /* Migrate socket buffer sizes and all the socket level options to the * new socket. @@ -6768,12 +6794,7 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk, newsk->sk_sndbuf = oldsk->sk_sndbuf; newsk->sk_rcvbuf = oldsk->sk_rcvbuf; /* Brute force copy old sctp opt. */ - if (oldsp->do_auto_asconf) { - memcpy(&tmplist, &newsp->auto_asconf_list, sizeof(tmplist)); - inet_sk_copy_descendant(newsk, oldsk); - memcpy(&newsp->auto_asconf_list, &tmplist, sizeof(tmplist)); - } else - inet_sk_copy_descendant(newsk, oldsk); + sctp_copy_descendant(newsk, oldsk); /* Restore the ep value that was overwritten with the above structure * copy. diff --git a/net/sunrpc/backchannel_rqst.c b/net/sunrpc/backchannel_rqst.c index 31def68..617b955 100644 --- a/net/sunrpc/backchannel_rqst.c +++ b/net/sunrpc/backchannel_rqst.c @@ -60,7 +60,7 @@ static void xprt_free_allocation(struct rpc_rqst *req) dprintk("RPC: free allocations for req= %p\n", req); BUG_ON(test_bit(RPC_BC_PA_IN_USE, &req->rq_bc_pa_state)); - xbufp = &req->rq_private_buf; + xbufp = &req->rq_rcv_buf; free_page((unsigned long)xbufp->head[0].iov_base); xbufp = &req->rq_snd_buf; free_page((unsigned long)xbufp->head[0].iov_base); diff --git a/sound/soc/codecs/wm8737.c b/sound/soc/codecs/wm8737.c index 4fe9d19..80460d2 100644 --- a/sound/soc/codecs/wm8737.c +++ b/sound/soc/codecs/wm8737.c @@ -484,7 +484,8 @@ static int wm8737_set_bias_level(struct snd_soc_codec *codec, /* Fast VMID ramp at 2*2.5k */ snd_soc_update_bits(codec, WM8737_MISC_BIAS_CONTROL, - WM8737_VMIDSEL_MASK, 0x4); + WM8737_VMIDSEL_MASK, + 2 << WM8737_VMIDSEL_SHIFT); /* Bring VMID up */ snd_soc_update_bits(codec, WM8737_POWER_MANAGEMENT, @@ -498,7 +499,8 @@ static int wm8737_set_bias_level(struct snd_soc_codec *codec, /* VMID at 2*300k */ snd_soc_update_bits(codec, WM8737_MISC_BIAS_CONTROL, - WM8737_VMIDSEL_MASK, 2); + WM8737_VMIDSEL_MASK, + 1 << WM8737_VMIDSEL_SHIFT); break; diff --git a/sound/soc/codecs/wm8903.h b/sound/soc/codecs/wm8903.h index db94931..0bb4a64 100644 --- a/sound/soc/codecs/wm8903.h +++ b/sound/soc/codecs/wm8903.h @@ -172,7 +172,7 @@ extern int wm8903_mic_detect(struct snd_soc_codec *codec, #define WM8903_VMID_BUF_ENA_WIDTH 1 /* VMID_BUF_ENA */ #define WM8903_VMID_RES_50K 2 -#define WM8903_VMID_RES_250K 3 +#define WM8903_VMID_RES_250K 4 #define WM8903_VMID_RES_5K 6 /* diff --git a/sound/soc/codecs/wm8955.c b/sound/soc/codecs/wm8955.c index 4696f66..07b78a9 100644 --- a/sound/soc/codecs/wm8955.c +++ b/sound/soc/codecs/wm8955.c @@ -298,7 +298,7 @@ static int wm8955_configure_clocking(struct snd_soc_codec *codec) snd_soc_update_bits(codec, WM8955_PLL_CONTROL_2, WM8955_K_17_9_MASK, (pll.k >> 9) & WM8955_K_17_9_MASK); - snd_soc_update_bits(codec, WM8955_PLL_CONTROL_2, + snd_soc_update_bits(codec, WM8955_PLL_CONTROL_3, WM8955_K_8_0_MASK, pll.k & WM8955_K_8_0_MASK); if (pll.k) diff --git a/sound/soc/codecs/wm8960.c b/sound/soc/codecs/wm8960.c index ed986e6..bd3c6ef 100644 --- a/sound/soc/codecs/wm8960.c +++ b/sound/soc/codecs/wm8960.c @@ -183,7 +183,7 @@ SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0), SOC_ENUM("ADC Polarity", wm8960_enum[0]), SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0), -SOC_ENUM("DAC Polarity", wm8960_enum[2]), +SOC_ENUM("DAC Polarity", wm8960_enum[1]), SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0, wm8960_get_deemph, wm8960_put_deemph),