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This is the 4.19.142 stable release

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Merge 4.19.142 into android-4.19-stable

Changes in 4.19.142
	drm/vgem: Replace opencoded version of drm_gem_dumb_map_offset()
	perf probe: Fix memory leakage when the probe point is not found
	khugepaged: khugepaged_test_exit() check mmget_still_valid()
	khugepaged: adjust VM_BUG_ON_MM() in __khugepaged_enter()
	btrfs: export helpers for subvolume name/id resolution
	btrfs: don't show full path of bind mounts in subvol=
	btrfs: Move free_pages_out label in inline extent handling branch in compress_file_range
	btrfs: inode: fix NULL pointer dereference if inode doesn't need compression
	btrfs: sysfs: use NOFS for device creation
	romfs: fix uninitialized memory leak in romfs_dev_read()
	kernel/relay.c: fix memleak on destroy relay channel
	mm: include CMA pages in lowmem_reserve at boot
	mm, page_alloc: fix core hung in free_pcppages_bulk()
	ext4: fix checking of directory entry validity for inline directories
	jbd2: add the missing unlock_buffer() in the error path of jbd2_write_superblock()
	scsi: zfcp: Fix use-after-free in request timeout handlers
	drm/amd/display: fix pow() crashing when given base 0
	kthread: Do not preempt current task if it is going to call schedule()
	spi: Prevent adding devices below an unregistering controller
	scsi: ufs: Add DELAY_BEFORE_LPM quirk for Micron devices
	scsi: target: tcmu: Fix crash in tcmu_flush_dcache_range on ARM
	media: budget-core: Improve exception handling in budget_register()
	rtc: goldfish: Enable interrupt in set_alarm() when necessary
	media: vpss: clean up resources in init
	Input: psmouse - add a newline when printing 'proto' by sysfs
	m68knommu: fix overwriting of bits in ColdFire V3 cache control
	svcrdma: Fix another Receive buffer leak
	xfs: fix inode quota reservation checks
	jffs2: fix UAF problem
	ceph: fix use-after-free for fsc->mdsc
	cpufreq: intel_pstate: Fix cpuinfo_max_freq when MSR_TURBO_RATIO_LIMIT is 0
	scsi: libfc: Free skb in fc_disc_gpn_id_resp() for valid cases
	virtio_ring: Avoid loop when vq is broken in virtqueue_poll
	tools/testing/selftests/cgroup/cgroup_util.c: cg_read_strcmp: fix null pointer dereference
	xfs: Fix UBSAN null-ptr-deref in xfs_sysfs_init
	alpha: fix annotation of io{read,write}{16,32}be()
	fs/signalfd.c: fix inconsistent return codes for signalfd4
	ext4: fix potential negative array index in do_split()
	ext4: don't allow overlapping system zones
	ASoC: q6routing: add dummy register read/write function
	i40e: Set RX_ONLY mode for unicast promiscuous on VLAN
	i40e: Fix crash during removing i40e driver
	net: fec: correct the error path for regulator disable in probe
	bonding: show saner speed for broadcast mode
	bonding: fix a potential double-unregister
	s390/runtime_instrumentation: fix storage key handling
	s390/ptrace: fix storage key handling
	ASoC: msm8916-wcd-analog: fix register Interrupt offset
	ASoC: intel: Fix memleak in sst_media_open
	vfio/type1: Add proper error unwind for vfio_iommu_replay()
	kvm: x86: Toggling CR4.SMAP does not load PDPTEs in PAE mode
	kvm: x86: Toggling CR4.PKE does not load PDPTEs in PAE mode
	kconfig: qconf: do not limit the pop-up menu to the first row
	kconfig: qconf: fix signal connection to invalid slots
	efi: avoid error message when booting under Xen
	Fix build error when CONFIG_ACPI is not set/enabled:
	RDMA/bnxt_re: Do not add user qps to flushlist
	afs: Fix NULL deref in afs_dynroot_depopulate()
	bonding: fix active-backup failover for current ARP slave
	net: ena: Prevent reset after device destruction
	net: gemini: Fix missing free_netdev() in error path of gemini_ethernet_port_probe()
	hv_netvsc: Fix the queue_mapping in netvsc_vf_xmit()
	net: dsa: b53: check for timeout
	powerpc/pseries: Do not initiate shutdown when system is running on UPS
	efi: add missed destroy_workqueue when efisubsys_init fails
	epoll: Keep a reference on files added to the check list
	do_epoll_ctl(): clean the failure exits up a bit
	mm/hugetlb: fix calculation of adjust_range_if_pmd_sharing_possible
	xen: don't reschedule in preemption off sections
	clk: Evict unregistered clks from parent caches
	KVM: Pass MMU notifier range flags to kvm_unmap_hva_range()
	KVM: arm64: Only reschedule if MMU_NOTIFIER_RANGE_BLOCKABLE is not set
	Linux 4.19.142

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ibfe4a0a4249f76ab35076f4b003e32cd6f9788a5
This commit is contained in:
Greg Kroah-Hartman 2020-08-26 11:07:03 +02:00
commit 599bf02de4
78 changed files with 521 additions and 259 deletions
Download patch file Download diff file Expand all files Collapse all files

2
Makefile
View file

@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 4
PATCHLEVEL = 19
SUBLEVEL = 141
SUBLEVEL = 142
EXTRAVERSION =
NAME = "People's Front"

8
arch/alpha/include/asm/io.h
View file

@ -507,10 +507,10 @@ extern inline void writeq(u64 b, volatile void __iomem *addr)
}
#endif
#define ioread16be(p) be16_to_cpu(ioread16(p))
#define ioread32be(p) be32_to_cpu(ioread32(p))
#define iowrite16be(v,p) iowrite16(cpu_to_be16(v), (p))
#define iowrite32be(v,p) iowrite32(cpu_to_be32(v), (p))
#define ioread16be(p) swab16(ioread16(p))
#define ioread32be(p) swab32(ioread32(p))
#define iowrite16be(v,p) iowrite16(swab16(v), (p))
#define iowrite32be(v,p) iowrite32(swab32(v), (p))
#define inb_p inb
#define inw_p inw

2
arch/arm/include/asm/kvm_host.h
View file

@ -234,7 +234,7 @@ int __kvm_arm_vcpu_set_events(struct kvm_vcpu *vcpu,
#define KVM_ARCH_WANT_MMU_NOTIFIER
int kvm_unmap_hva_range(struct kvm *kvm,
unsigned long start, unsigned long end);
unsigned long start, unsigned long end, bool blockable);
void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu);

2
arch/arm64/include/asm/kvm_host.h
View file

@ -370,7 +370,7 @@ int __kvm_arm_vcpu_set_events(struct kvm_vcpu *vcpu,
#define KVM_ARCH_WANT_MMU_NOTIFIER
int kvm_unmap_hva_range(struct kvm *kvm,
unsigned long start, unsigned long end);
unsigned long start, unsigned long end, bool blockable);
void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);

6
arch/m68k/include/asm/m53xxacr.h
View file

@ -89,9 +89,9 @@
* coherency though in all cases. And for copyback caches we will need
* to push cached data as well.
*/
#define CACHE_INIT CACR_CINVA
#define CACHE_INVALIDATE CACR_CINVA
#define CACHE_INVALIDATED CACR_CINVA
#define CACHE_INIT (CACHE_MODE + CACR_CINVA - CACR_EC)
#define CACHE_INVALIDATE (CACHE_MODE + CACR_CINVA)
#define CACHE_INVALIDATED (CACHE_MODE + CACR_CINVA)
#define ACR0_MODE ((CONFIG_RAMBASE & 0xff000000) + \
(0x000f0000) + \

2
arch/mips/include/asm/kvm_host.h
View file

@ -936,7 +936,7 @@ enum kvm_mips_fault_result kvm_trap_emul_gva_fault(struct kvm_vcpu *vcpu,
#define KVM_ARCH_WANT_MMU_NOTIFIER
int kvm_unmap_hva_range(struct kvm *kvm,
unsigned long start, unsigned long end);
unsigned long start, unsigned long end, bool blockable);
void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);

3
arch/mips/kvm/mmu.c
View file

@ -512,7 +512,8 @@ static int kvm_unmap_hva_handler(struct kvm *kvm, gfn_t gfn, gfn_t gfn_end,
return 1;
}
int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end,
bool blockable)
{
handle_hva_to_gpa(kvm, start, end, &kvm_unmap_hva_handler, NULL);

3
arch/powerpc/include/asm/kvm_host.h
View file

@ -68,7 +68,8 @@
#define KVM_ARCH_WANT_MMU_NOTIFIER
extern int kvm_unmap_hva_range(struct kvm *kvm,
unsigned long start, unsigned long end);
unsigned long start, unsigned long end,
bool blockable);
extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
extern void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);

3
arch/powerpc/kvm/book3s.c
View file

@ -812,7 +812,8 @@ void kvmppc_core_commit_memory_region(struct kvm *kvm,
kvm->arch.kvm_ops->commit_memory_region(kvm, mem, old, new);
}
int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end,
bool blockable)
{
return kvm->arch.kvm_ops->unmap_hva_range(kvm, start, end);
}

3
arch/powerpc/kvm/e500_mmu_host.c
View file

@ -737,7 +737,8 @@ static int kvm_unmap_hva(struct kvm *kvm, unsigned long hva)
return 0;
}
int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end,
bool blockable)
{
/* kvm_unmap_hva flushes everything anyways */
kvm_unmap_hva(kvm, start);

1
arch/powerpc/platforms/pseries/ras.c
View file

@ -118,7 +118,6 @@ static void handle_system_shutdown(char event_modifier)
case EPOW_SHUTDOWN_ON_UPS:
pr_emerg("Loss of system power detected. System is running on"
" UPS/battery. Check RTAS error log for details\n");
orderly_poweroff(true);
break;
case EPOW_SHUTDOWN_LOSS_OF_CRITICAL_FUNCTIONS:

7
arch/s390/kernel/ptrace.c
View file

@ -1286,7 +1286,6 @@ static bool is_ri_cb_valid(struct runtime_instr_cb *cb)
cb->pc == 1 &&
cb->qc == 0 &&
cb->reserved2 == 0 &&
cb->key == PAGE_DEFAULT_KEY &&
cb->reserved3 == 0 &&
cb->reserved4 == 0 &&
cb->reserved5 == 0 &&
@ -1350,7 +1349,11 @@ static int s390_runtime_instr_set(struct task_struct *target,
kfree(data);
return -EINVAL;
}
/*
* Override access key in any case, since user space should
* not be able to set it, nor should it care about it.
*/
ri_cb.key = PAGE_DEFAULT_KEY >> 4;
preempt_disable();
if (!target->thread.ri_cb)
target->thread.ri_cb = data;

2
arch/s390/kernel/runtime_instr.c
View file

@ -57,7 +57,7 @@ static void init_runtime_instr_cb(struct runtime_instr_cb *cb)
cb->k = 1;
cb->ps = 1;
cb->pc = 1;
cb->key = PAGE_DEFAULT_KEY;
cb->key = PAGE_DEFAULT_KEY >> 4;
cb->v = 1;
}

3
arch/x86/include/asm/kvm_host.h
View file

@ -1465,7 +1465,8 @@ asmlinkage void __noreturn kvm_spurious_fault(void);
____kvm_handle_fault_on_reboot(insn, "")
#define KVM_ARCH_WANT_MMU_NOTIFIER
int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end);
int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end,
bool blockable);
int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);

3
arch/x86/kvm/mmu.c
View file

@ -1956,7 +1956,8 @@ static int kvm_handle_hva(struct kvm *kvm, unsigned long hva,
return kvm_handle_hva_range(kvm, hva, hva + 1, data, handler);
}
int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end,
bool blockable)
{
return kvm_handle_hva_range(kvm, start, end, 0, kvm_unmap_rmapp);
}

2
arch/x86/kvm/x86.c
View file

@ -857,7 +857,7 @@ int kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
{
unsigned long old_cr4 = kvm_read_cr4(vcpu);
unsigned long pdptr_bits = X86_CR4_PGE | X86_CR4_PSE | X86_CR4_PAE |
X86_CR4_SMEP | X86_CR4_SMAP | X86_CR4_PKE;
X86_CR4_SMEP;
if (kvm_valid_cr4(vcpu, cr4))
return 1;

1
arch/x86/pci/xen.c
View file

@ -25,6 +25,7 @@
#include <asm/xen/pci.h>
#include <asm/xen/cpuid.h>
#include <asm/apic.h>
#include <asm/acpi.h>
#include <asm/i8259.h>
static int xen_pcifront_enable_irq(struct pci_dev *dev)

52
drivers/clk/clk.c
View file

@ -44,6 +44,17 @@ static HLIST_HEAD(clk_root_list);
static HLIST_HEAD(clk_orphan_list);
static LIST_HEAD(clk_notifier_list);
static struct hlist_head *all_lists[] = {
&clk_root_list,
&clk_orphan_list,
NULL,
};
static struct hlist_head *orphan_list[] = {
&clk_orphan_list,
NULL,
};
/*
* clk_rate_change_list is used during clk_core_set_rate_nolock() calls to
* handle vdd_class vote tracking. core->rate_change_node is added to
@ -3173,17 +3184,6 @@ static int inited = 0;
static DEFINE_MUTEX(clk_debug_lock);
static HLIST_HEAD(clk_debug_list);
static struct hlist_head *all_lists[] = {
&clk_root_list,
&clk_orphan_list,
NULL,
};
static struct hlist_head *orphan_list[] = {
&clk_orphan_list,
NULL,
};
static void clk_summary_show_one(struct seq_file *s, struct clk_core *c,
int level)
{
@ -3939,6 +3939,34 @@ static const struct clk_ops clk_nodrv_ops = {
.set_parent = clk_nodrv_set_parent,
};
static void clk_core_evict_parent_cache_subtree(struct clk_core *root,
struct clk_core *target)
{
int i;
struct clk_core *child;
for (i = 0; i < root->num_parents; i++)
if (root->parents[i] == target)
root->parents[i] = NULL;
hlist_for_each_entry(child, &root->children, child_node)
clk_core_evict_parent_cache_subtree(child, target);
}
/* Remove this clk from all parent caches */
static void clk_core_evict_parent_cache(struct clk_core *core)
{
struct hlist_head **lists;
struct clk_core *root;
lockdep_assert_held(&prepare_lock);
for (lists = all_lists; *lists; lists++)
hlist_for_each_entry(root, *lists, child_node)
clk_core_evict_parent_cache_subtree(root, core);
}
/**
* clk_unregister - unregister a currently registered clock
* @clk: clock to unregister
@ -3977,6 +4005,8 @@ void clk_unregister(struct clk *clk)
clk_core_set_parent_nolock(child, NULL);
}
clk_core_evict_parent_cache(clk->core);
hlist_del_init(&clk->core->child_node);
if (clk->core->prepare_count)

1
drivers/cpufreq/intel_pstate.c
View file

@ -1431,6 +1431,7 @@ static void intel_pstate_get_cpu_pstates(struct cpudata *cpu)
intel_pstate_get_hwp_max(cpu->cpu, &phy_max, &current_max);
cpu->pstate.turbo_freq = phy_max * cpu->pstate.scaling;
cpu->pstate.turbo_pstate = phy_max;
} else {
cpu->pstate.turbo_freq = cpu->pstate.turbo_pstate * cpu->pstate.scaling;
}

2
drivers/firmware/efi/efi.c
View file

@ -359,6 +359,7 @@ static int __init efisubsys_init(void)
efi_kobj = kobject_create_and_add("efi", firmware_kobj);
if (!efi_kobj) {
pr_err("efi: Firmware registration failed.\n");
destroy_workqueue(efi_rts_wq);
return -ENOMEM;
}
@ -395,6 +396,7 @@ err_unregister:
generic_ops_unregister();
err_put:
kobject_put(efi_kobj);
destroy_workqueue(efi_rts_wq);
return error;
}

3
drivers/gpu/drm/amd/display/include/fixed31_32.h
View file

@ -431,6 +431,9 @@ struct fixed31_32 dc_fixpt_log(struct fixed31_32 arg);
*/
static inline struct fixed31_32 dc_fixpt_pow(struct fixed31_32 arg1, struct fixed31_32 arg2)
{
if (arg1.value == 0)
return arg2.value == 0 ? dc_fixpt_one : dc_fixpt_zero;
return dc_fixpt_exp(
dc_fixpt_mul(
dc_fixpt_log(arg1),

27
drivers/gpu/drm/vgem/vgem_drv.c
View file

@ -219,32 +219,6 @@ static int vgem_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
return 0;
}
static int vgem_gem_dumb_map(struct drm_file *file, struct drm_device *dev,
uint32_t handle, uint64_t *offset)
{
struct drm_gem_object *obj;
int ret;
obj = drm_gem_object_lookup(file, handle);
if (!obj)
return -ENOENT;
if (!obj->filp) {
ret = -EINVAL;
goto unref;
}
ret = drm_gem_create_mmap_offset(obj);
if (ret)
goto unref;
*offset = drm_vma_node_offset_addr(&obj->vma_node);
unref:
drm_gem_object_put_unlocked(obj);
return ret;
}
static struct drm_ioctl_desc vgem_ioctls[] = {
DRM_IOCTL_DEF_DRV(VGEM_FENCE_ATTACH, vgem_fence_attach_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(VGEM_FENCE_SIGNAL, vgem_fence_signal_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
@ -438,7 +412,6 @@ static struct drm_driver vgem_driver = {
.fops = &vgem_driver_fops,
.dumb_create = vgem_gem_dumb_create,
.dumb_map_offset = vgem_gem_dumb_map,
.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
.prime_fd_to_handle = drm_gem_prime_fd_to_handle,

3
drivers/infiniband/hw/bnxt_re/main.c
View file

@ -753,7 +753,8 @@ static int bnxt_re_handle_qp_async_event(struct creq_qp_event *qp_event,
struct ib_event event;
unsigned int flags;
if (qp->qplib_qp.state == CMDQ_MODIFY_QP_NEW_STATE_ERR) {
if (qp->qplib_qp.state == CMDQ_MODIFY_QP_NEW_STATE_ERR &&
rdma_is_kernel_res(&qp->ib_qp.res)) {
flags = bnxt_re_lock_cqs(qp);
bnxt_qplib_add_flush_qp(&qp->qplib_qp);
bnxt_re_unlock_cqs(qp, flags);

2
drivers/input/mouse/psmouse-base.c
View file

@ -2044,7 +2044,7 @@ static int psmouse_get_maxproto(char *buffer, const struct kernel_param *kp)
{
int type = *((unsigned int *)kp->arg);
return sprintf(buffer, "%s", psmouse_protocol_by_type(type)->name);
return sprintf(buffer, "%s\n", psmouse_protocol_by_type(type)->name);
}
static int __init psmouse_init(void)

11
drivers/media/pci/ttpci/budget-core.c
View file

@ -383,20 +383,25 @@ static int budget_register(struct budget *budget)
ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->hw_frontend);
if (ret < 0)
return ret;
goto err_release_dmx;
budget->mem_frontend.source = DMX_MEMORY_FE;
ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->mem_frontend);
if (ret < 0)
return ret;
goto err_release_dmx;
ret = dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, &budget->hw_frontend);
if (ret < 0)
return ret;
goto err_release_dmx;
dvb_net_init(&budget->dvb_adapter, &budget->dvb_net, &dvbdemux->dmx);
return 0;
err_release_dmx:
dvb_dmxdev_release(&budget->dmxdev);
dvb_dmx_release(&budget->demux);
return ret;
}
static void budget_unregister(struct budget *budget)

20
drivers/media/platform/davinci/vpss.c
View file

@ -514,19 +514,31 @@ static void vpss_exit(void)
static int __init vpss_init(void)
{
int ret;
if (!request_mem_region(VPSS_CLK_CTRL, 4, "vpss_clock_control"))
return -EBUSY;
oper_cfg.vpss_regs_base2 = ioremap(VPSS_CLK_CTRL, 4);
if (unlikely(!oper_cfg.vpss_regs_base2)) {
release_mem_region(VPSS_CLK_CTRL, 4);
return -ENOMEM;
ret = -ENOMEM;
goto err_ioremap;
}
writel(VPSS_CLK_CTRL_VENCCLKEN |
VPSS_CLK_CTRL_DACCLKEN, oper_cfg.vpss_regs_base2);
VPSS_CLK_CTRL_DACCLKEN, oper_cfg.vpss_regs_base2);
return platform_driver_register(&vpss_driver);
ret = platform_driver_register(&vpss_driver);
if (ret)
goto err_pd_register;
return 0;
err_pd_register:
iounmap(oper_cfg.vpss_regs_base2);
err_ioremap:
release_mem_region(VPSS_CLK_CTRL, 4);
return ret;
}
subsys_initcall(vpss_init);
module_exit(vpss_exit);

42
drivers/net/bonding/bond_main.c
View file

@ -2029,7 +2029,8 @@ static int bond_release_and_destroy(struct net_device *bond_dev,
int ret;
ret = __bond_release_one(bond_dev, slave_dev, false, true);
if (ret == 0 && !bond_has_slaves(bond)) {
if (ret == 0 && !bond_has_slaves(bond) &&
bond_dev->reg_state != NETREG_UNREGISTERING) {
bond_dev->priv_flags |= IFF_DISABLE_NETPOLL;
netdev_info(bond_dev, "Destroying bond %s\n",
bond_dev->name);
@ -2772,6 +2773,9 @@ static int bond_ab_arp_inspect(struct bonding *bond)
if (bond_time_in_interval(bond, last_rx, 1)) {
bond_propose_link_state(slave, BOND_LINK_UP);
commit++;
} else if (slave->link == BOND_LINK_BACK) {
bond_propose_link_state(slave, BOND_LINK_FAIL);
commit++;
}
continue;
}
@ -2882,6 +2886,19 @@ static void bond_ab_arp_commit(struct bonding *bond)
continue;
case BOND_LINK_FAIL:
bond_set_slave_link_state(slave, BOND_LINK_FAIL,
BOND_SLAVE_NOTIFY_NOW);
bond_set_slave_inactive_flags(slave,
BOND_SLAVE_NOTIFY_NOW);
/* A slave has just been enslaved and has become
* the current active slave.
*/
if (rtnl_dereference(bond->curr_active_slave))
RCU_INIT_POINTER(bond->current_arp_slave, NULL);
continue;
default:
netdev_err(bond->dev, "impossible: new_link %d on slave %s\n",
slave->link_new_state, slave->dev->name);
@ -2931,8 +2948,6 @@ static bool bond_ab_arp_probe(struct bonding *bond)
return should_notify_rtnl;
}
bond_set_slave_inactive_flags(curr_arp_slave, BOND_SLAVE_NOTIFY_LATER);
bond_for_each_slave_rcu(bond, slave, iter) {
if (!found && !before && bond_slave_is_up(slave))
before = slave;
@ -4200,13 +4215,23 @@ static netdev_tx_t bond_start_xmit(struct sk_buff *skb, struct net_device *dev)
return ret;
}
static u32 bond_mode_bcast_speed(struct slave *slave, u32 speed)
{
if (speed == 0 || speed == SPEED_UNKNOWN)
speed = slave->speed;
else
speed = min(speed, slave->speed);
return speed;
}
static int bond_ethtool_get_link_ksettings(struct net_device *bond_dev,
struct ethtool_link_ksettings *cmd)
{
struct bonding *bond = netdev_priv(bond_dev);
unsigned long speed = 0;
struct list_head *iter;
struct slave *slave;
u32 speed = 0;
cmd->base.duplex = DUPLEX_UNKNOWN;
cmd->base.port = PORT_OTHER;
@ -4218,8 +4243,13 @@ static int bond_ethtool_get_link_ksettings(struct net_device *bond_dev,
*/
bond_for_each_slave(bond, slave, iter) {
if (bond_slave_can_tx(slave)) {
if (slave->speed != SPEED_UNKNOWN)
speed += slave->speed;
if (slave->speed != SPEED_UNKNOWN) {
if (BOND_MODE(bond) == BOND_MODE_BROADCAST)
speed = bond_mode_bcast_speed(slave,
speed);
else
speed += slave->speed;
}
if (cmd->base.duplex == DUPLEX_UNKNOWN &&
slave->duplex != DUPLEX_UNKNOWN)
cmd->base.duplex = slave->duplex;

2
drivers/net/dsa/b53/b53_common.c
View file

@ -1335,6 +1335,8 @@ static int b53_arl_op(struct b53_device *dev, int op, int port,
return ret;
switch (ret) {
case -ETIMEDOUT:
return ret;
case -ENOSPC:
dev_dbg(dev->dev, "{%pM,%.4d} no space left in ARL\n",
addr, vid);

19
drivers/net/ethernet/amazon/ena/ena_netdev.c
View file

@ -2647,16 +2647,14 @@ static void ena_fw_reset_device(struct work_struct *work)
{
struct ena_adapter *adapter =
container_of(work, struct ena_adapter, reset_task);
struct pci_dev *pdev = adapter->pdev;
if (unlikely(!test_bit(ENA_FLAG_TRIGGER_RESET, &adapter->flags))) {
dev_err(&pdev->dev,
"device reset schedule while reset bit is off\n");
return;
}
rtnl_lock();
ena_destroy_device(adapter, false);
ena_restore_device(adapter);
if (likely(test_bit(ENA_FLAG_TRIGGER_RESET, &adapter->flags))) {
ena_destroy_device(adapter, false);
ena_restore_device(adapter);
}
rtnl_unlock();
}
@ -3392,8 +3390,11 @@ static void ena_remove(struct pci_dev *pdev)
netdev->rx_cpu_rmap = NULL;
}
#endif /* CONFIG_RFS_ACCEL */
del_timer_sync(&adapter->timer_service);
/* Make sure timer and reset routine won't be called after
* freeing device resources.
*/
del_timer_sync(&adapter->timer_service);
cancel_work_sync(&adapter->reset_task);
unregister_netdev(netdev);

4
drivers/net/ethernet/cortina/gemini.c
View file

@ -2392,7 +2392,7 @@ static int gemini_ethernet_port_probe(struct platform_device *pdev)
dev_info(dev, "probe %s ID %d\n", dev_name(dev), id);
netdev = alloc_etherdev_mq(sizeof(*port), TX_QUEUE_NUM);
netdev = devm_alloc_etherdev_mqs(dev, sizeof(*port), TX_QUEUE_NUM, TX_QUEUE_NUM);
if (!netdev) {
dev_err(dev, "Can't allocate ethernet device #%d\n", id);
return -ENOMEM;
@ -2526,7 +2526,6 @@ static int gemini_ethernet_port_probe(struct platform_device *pdev)
}
port->netdev = NULL;
free_netdev(netdev);
return ret;
}
@ -2535,7 +2534,6 @@ static int gemini_ethernet_port_remove(struct platform_device *pdev)
struct gemini_ethernet_port *port = platform_get_drvdata(pdev);
gemini_port_remove(port);
free_netdev(port->netdev);
return 0;
}

4
drivers/net/ethernet/freescale/fec_main.c
View file

@ -3659,11 +3659,11 @@ failed_mii_init:
failed_irq:
failed_init:
fec_ptp_stop(pdev);
if (fep->reg_phy)
regulator_disable(fep->reg_phy);
failed_reset:
pm_runtime_put_noidle(&pdev->dev);
pm_runtime_disable(&pdev->dev);
if (fep->reg_phy)
regulator_disable(fep->reg_phy);
failed_regulator:
clk_disable_unprepare(fep->clk_ahb);
failed_clk_ahb:

2
drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h
View file

@ -1206,7 +1206,7 @@ struct i40e_aqc_set_vsi_promiscuous_modes {
#define I40E_AQC_SET_VSI_PROMISC_BROADCAST 0x04
#define I40E_AQC_SET_VSI_DEFAULT 0x08
#define I40E_AQC_SET_VSI_PROMISC_VLAN 0x10
#define I40E_AQC_SET_VSI_PROMISC_TX 0x8000
#define I40E_AQC_SET_VSI_PROMISC_RX_ONLY 0x8000
__le16 seid;
#define I40E_AQC_VSI_PROM_CMD_SEID_MASK 0x3FF
__le16 vlan_tag;

35
drivers/net/ethernet/intel/i40e/i40e_common.c
View file

@ -1970,6 +1970,21 @@ i40e_status i40e_aq_set_phy_debug(struct i40e_hw *hw, u8 cmd_flags,
return status;
}
/**
* i40e_is_aq_api_ver_ge
* @aq: pointer to AdminQ info containing HW API version to compare
* @maj: API major value
* @min: API minor value
*
* Assert whether current HW API version is greater/equal than provided.
**/
static bool i40e_is_aq_api_ver_ge(struct i40e_adminq_info *aq, u16 maj,
u16 min)
{
return (aq->api_maj_ver > maj ||
(aq->api_maj_ver == maj && aq->api_min_ver >= min));
}
/**
* i40e_aq_add_vsi
* @hw: pointer to the hw struct
@ -2095,18 +2110,16 @@ i40e_status i40e_aq_set_vsi_unicast_promiscuous(struct i40e_hw *hw,
if (set) {
flags |= I40E_AQC_SET_VSI_PROMISC_UNICAST;
if (rx_only_promisc &&
(((hw->aq.api_maj_ver == 1) && (hw->aq.api_min_ver >= 5)) ||
(hw->aq.api_maj_ver > 1)))
flags |= I40E_AQC_SET_VSI_PROMISC_TX;
if (rx_only_promisc && i40e_is_aq_api_ver_ge(&hw->aq, 1, 5))
flags |= I40E_AQC_SET_VSI_PROMISC_RX_ONLY;
}
cmd->promiscuous_flags = cpu_to_le16(flags);
cmd->valid_flags = cpu_to_le16(I40E_AQC_SET_VSI_PROMISC_UNICAST);
if (((hw->aq.api_maj_ver >= 1) && (hw->aq.api_min_ver >= 5)) ||
(hw->aq.api_maj_ver > 1))
cmd->valid_flags |= cpu_to_le16(I40E_AQC_SET_VSI_PROMISC_TX);
if (i40e_is_aq_api_ver_ge(&hw->aq, 1, 5))
cmd->valid_flags |=
cpu_to_le16(I40E_AQC_SET_VSI_PROMISC_RX_ONLY);
cmd->seid = cpu_to_le16(seid);
status = i40e_asq_send_command(hw, &desc, NULL, 0, cmd_details);
@ -2203,11 +2216,17 @@ enum i40e_status_code i40e_aq_set_vsi_uc_promisc_on_vlan(struct i40e_hw *hw,
i40e_fill_default_direct_cmd_desc(&desc,
i40e_aqc_opc_set_vsi_promiscuous_modes);
if (enable)
if (enable) {
flags |= I40E_AQC_SET_VSI_PROMISC_UNICAST;
if (i40e_is_aq_api_ver_ge(&hw->aq, 1, 5))
flags |= I40E_AQC_SET_VSI_PROMISC_RX_ONLY;
}
cmd->promiscuous_flags = cpu_to_le16(flags);
cmd->valid_flags = cpu_to_le16(I40E_AQC_SET_VSI_PROMISC_UNICAST);
if (i40e_is_aq_api_ver_ge(&hw->aq, 1, 5))
cmd->valid_flags |=
cpu_to_le16(I40E_AQC_SET_VSI_PROMISC_RX_ONLY);
cmd->seid = cpu_to_le16(seid);
cmd->vlan_tag = cpu_to_le16(vid | I40E_AQC_SET_VSI_VLAN_VALID);

3
drivers/net/ethernet/intel/i40e/i40e_main.c
View file

@ -14152,6 +14152,9 @@ static void i40e_remove(struct pci_dev *pdev)
i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), 0);
i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), 0);
while (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state))
usleep_range(1000, 2000);
/* no more scheduling of any task */
set_bit(__I40E_SUSPENDED, pf->state);
set_bit(__I40E_DOWN, pf->state);

2
drivers/net/hyperv/netvsc_drv.c
View file

@ -513,7 +513,7 @@ static int netvsc_vf_xmit(struct net_device *net, struct net_device *vf_netdev,
int rc;
skb->dev = vf_netdev;
skb->queue_mapping = qdisc_skb_cb(skb)->slave_dev_queue_mapping;
skb_record_rx_queue(skb, qdisc_skb_cb(skb)->slave_dev_queue_mapping);
rc = dev_queue_xmit(skb);
if (likely(rc == NET_XMIT_SUCCESS || rc == NET_XMIT_CN)) {

1
drivers/rtc/rtc-goldfish.c
View file

@ -87,6 +87,7 @@ static int goldfish_rtc_set_alarm(struct device *dev,
rtc_alarm64 = rtc_alarm * NSEC_PER_SEC;
writel((rtc_alarm64 >> 32), base + TIMER_ALARM_HIGH);
writel(rtc_alarm64, base + TIMER_ALARM_LOW);
writel(1, base + TIMER_IRQ_ENABLED);
} else {
/*
* if this function was called with enabled=0

4
drivers/s390/scsi/zfcp_fsf.c
View file

@ -403,7 +403,7 @@ static void zfcp_fsf_req_complete(struct zfcp_fsf_req *req)
return;
}
del_timer(&req->timer);
del_timer_sync(&req->timer);
zfcp_fsf_protstatus_eval(req);
zfcp_fsf_fsfstatus_eval(req);
req->handler(req);
@ -758,7 +758,7 @@ static int zfcp_fsf_req_send(struct zfcp_fsf_req *req)
req->qdio_req.qdio_outb_usage = atomic_read(&qdio->req_q_free);
req->issued = get_tod_clock();
if (zfcp_qdio_send(qdio, &req->qdio_req)) {
del_timer(&req->timer);
del_timer_sync(&req->timer);
/* lookup request again, list might have changed */
zfcp_reqlist_find_rm(adapter->req_list, req_id);
zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1");

12
drivers/scsi/libfc/fc_disc.c
View file

@ -593,8 +593,12 @@ static void fc_disc_gpn_id_resp(struct fc_seq *sp, struct fc_frame *fp,
if (PTR_ERR(fp) == -FC_EX_CLOSED)
goto out;
if (IS_ERR(fp))
goto redisc;
if (IS_ERR(fp)) {
mutex_lock(&disc->disc_mutex);
fc_disc_restart(disc);
mutex_unlock(&disc->disc_mutex);
goto out;
}
cp = fc_frame_payload_get(fp, sizeof(*cp));
if (!cp)
@ -621,7 +625,7 @@ static void fc_disc_gpn_id_resp(struct fc_seq *sp, struct fc_frame *fp,
new_rdata->disc_id = disc->disc_id;
fc_rport_login(new_rdata);
}
goto out;
goto free_fp;
}
rdata->disc_id = disc->disc_id;
mutex_unlock(&rdata->rp_mutex);
@ -638,6 +642,8 @@ redisc:
fc_disc_restart(disc);
mutex_unlock(&disc->disc_mutex);
}
free_fp:
fc_frame_free(fp);
out:
kref_put(&rdata->kref, fc_rport_destroy);
if (!IS_ERR(fp))

1
drivers/scsi/ufs/ufs_quirks.h
View file

@ -21,6 +21,7 @@
#define UFS_ANY_VENDOR 0xFFFF
#define UFS_ANY_MODEL "ANY_MODEL"
#define UFS_VENDOR_MICRON 0x12C
#define UFS_VENDOR_TOSHIBA 0x198
#define UFS_VENDOR_SAMSUNG 0x1CE
#define UFS_VENDOR_SKHYNIX 0x1AD

2
drivers/scsi/ufs/ufshcd.c
View file

@ -222,6 +222,8 @@ ufs_get_desired_pm_lvl_for_dev_link_state(enum ufs_dev_pwr_mode dev_state,
static struct ufs_dev_fix ufs_fixups[] = {
/* UFS cards deviations table */
UFS_FIX(UFS_VENDOR_MICRON, UFS_ANY_MODEL,
UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM),
UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,
UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM),
UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL, UFS_DEVICE_NO_VCCQ),

3
drivers/spi/Kconfig
View file

@ -817,4 +817,7 @@ config SPI_SLAVE_SYSTEM_CONTROL
endif # SPI_SLAVE
config SPI_DYNAMIC
def_bool ACPI || OF_DYNAMIC || SPI_SLAVE
endif # SPI

21
drivers/spi/spi.c
View file

@ -432,6 +432,12 @@ static LIST_HEAD(spi_controller_list);
*/
static DEFINE_MUTEX(board_lock);
/*
* Prevents addition of devices with same chip select and
* addition of devices below an unregistering controller.
*/
static DEFINE_MUTEX(spi_add_lock);
/**
* spi_alloc_device - Allocate a new SPI device
* @ctlr: Controller to which device is connected
@ -510,7 +516,6 @@ static int spi_dev_check(struct device *dev, void *data)
*/
int spi_add_device(struct spi_device *spi)
{
static DEFINE_MUTEX(spi_add_lock);
struct spi_controller *ctlr = spi->controller;
struct device *dev = ctlr->dev.parent;
int status;
@ -538,6 +543,13 @@ int spi_add_device(struct spi_device *spi)
goto done;
}
/* Controller may unregister concurrently */
if (IS_ENABLED(CONFIG_SPI_DYNAMIC) &&
!device_is_registered(&ctlr->dev)) {
status = -ENODEV;
goto done;
}
if (ctlr->cs_gpios)
spi->cs_gpio = ctlr->cs_gpios[spi->chip_select];
@ -2306,6 +2318,10 @@ void spi_unregister_controller(struct spi_controller *ctlr)
struct spi_controller *found;
int id = ctlr->bus_num;
/* Prevent addition of new devices, unregister existing ones */
if (IS_ENABLED(CONFIG_SPI_DYNAMIC))
mutex_lock(&spi_add_lock);
device_for_each_child(&ctlr->dev, NULL, __unregister);
/* First make sure that this controller was ever added */
@ -2326,6 +2342,9 @@ void spi_unregister_controller(struct spi_controller *ctlr)
if (found == ctlr)
idr_remove(&spi_master_idr, id);
mutex_unlock(&board_lock);
if (IS_ENABLED(CONFIG_SPI_DYNAMIC))
mutex_unlock(&spi_add_lock);
}
EXPORT_SYMBOL_GPL(spi_unregister_controller);

2
drivers/target/target_core_user.c
View file

@ -612,7 +612,7 @@ static inline void tcmu_flush_dcache_range(void *vaddr, size_t size)
size = round_up(size+offset, PAGE_SIZE);
while (size) {
flush_dcache_page(virt_to_page(start));
flush_dcache_page(vmalloc_to_page(start));
start += PAGE_SIZE;
size -= PAGE_SIZE;
}

71
drivers/vfio/vfio_iommu_type1.c
View file

@ -1195,13 +1195,16 @@ static int vfio_bus_type(struct device *dev, void *data)
static int vfio_iommu_replay(struct vfio_iommu *iommu,
struct vfio_domain *domain)
{
struct vfio_domain *d;
struct vfio_domain *d = NULL;
struct rb_node *n;
unsigned long limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT;
int ret;
/* Arbitrarily pick the first domain in the list for lookups */
d = list_first_entry(&iommu->domain_list, struct vfio_domain, next);
if (!list_empty(&iommu->domain_list))
d = list_first_entry(&iommu->domain_list,
struct vfio_domain, next);
n = rb_first(&iommu->dma_list);
for (; n; n = rb_next(n)) {
@ -1219,6 +1222,11 @@ static int vfio_iommu_replay(struct vfio_iommu *iommu,
phys_addr_t p;
dma_addr_t i;
if (WARN_ON(!d)) { /* mapped w/o a domain?! */
ret = -EINVAL;
goto unwind;
}
phys = iommu_iova_to_phys(d->domain, iova);
if (WARN_ON(!phys)) {
@ -1248,7 +1256,7 @@ static int vfio_iommu_replay(struct vfio_iommu *iommu,
if (npage <= 0) {
WARN_ON(!npage);
ret = (int)npage;
return ret;
goto unwind;
}
phys = pfn << PAGE_SHIFT;
@ -1257,14 +1265,67 @@ static int vfio_iommu_replay(struct vfio_iommu *iommu,
ret = iommu_map(domain->domain, iova, phys,
size, dma->prot | domain->prot);
if (ret)
return ret;
if (ret) {
if (!dma->iommu_mapped)
vfio_unpin_pages_remote(dma, iova,
phys >> PAGE_SHIFT,
size >> PAGE_SHIFT,
true);
goto unwind;
}
iova += size;
}
}
/* All dmas are now mapped, defer to second tree walk for unwind */
for (n = rb_first(&iommu->dma_list); n; n = rb_next(n)) {
struct vfio_dma *dma = rb_entry(n, struct vfio_dma, node);
dma->iommu_mapped = true;
}
return 0;
unwind:
for (; n; n = rb_prev(n)) {
struct vfio_dma *dma = rb_entry(n, struct vfio_dma, node);
dma_addr_t iova;
if (dma->iommu_mapped) {
iommu_unmap(domain->domain, dma->iova, dma->size);
continue;
}
iova = dma->iova;
while (iova < dma->iova + dma->size) {
phys_addr_t phys, p;
size_t size;
dma_addr_t i;
phys = iommu_iova_to_phys(domain->domain, iova);
if (!phys) {
iova += PAGE_SIZE;
continue;
}
size = PAGE_SIZE;
p = phys + size;
i = iova + size;
while (i < dma->iova + dma->size &&
p == iommu_iova_to_phys(domain->domain, i)) {
size += PAGE_SIZE;
p += PAGE_SIZE;
i += PAGE_SIZE;
}
iommu_unmap(domain->domain, iova, size);
vfio_unpin_pages_remote(dma, iova, phys >> PAGE_SHIFT,
size >> PAGE_SHIFT, true);
}
}
return ret;
}
/*

2
drivers/video/fbdev/efifb.c
View file

@ -449,7 +449,7 @@ static int efifb_probe(struct platform_device *dev)
info->apertures->ranges[0].base = efifb_fix.smem_start;
info->apertures->ranges[0].size = size_remap;
if (efi_enabled(EFI_BOOT) &&
if (efi_enabled(EFI_MEMMAP) &&
!efi_mem_desc_lookup(efifb_fix.smem_start, &md)) {
if ((efifb_fix.smem_start + efifb_fix.smem_len) >
(md.phys_addr + (md.num_pages << EFI_PAGE_SHIFT))) {

3
drivers/virtio/virtio_ring.c
View file

@ -828,6 +828,9 @@ bool virtqueue_poll(struct virtqueue *_vq, unsigned last_used_idx)
{
struct vring_virtqueue *vq = to_vvq(_vq);
if (unlikely(vq->broken))
return false;
virtio_mb(vq->weak_barriers);
return (u16)last_used_idx != virtio16_to_cpu(_vq->vdev, vq->vring.used->idx);
}

2
drivers/xen/preempt.c
View file

@ -31,7 +31,7 @@ EXPORT_SYMBOL_GPL(xen_in_preemptible_hcall);
asmlinkage __visible void xen_maybe_preempt_hcall(void)
{
if (unlikely(__this_cpu_read(xen_in_preemptible_hcall)
&& need_resched())) {
&& need_resched() && !preempt_count())) {
/*
* Clear flag as we may be rescheduled on a different
* cpu.

18
fs/afs/dynroot.c
View file

@ -299,15 +299,17 @@ void afs_dynroot_depopulate(struct super_block *sb)
net->dynroot_sb = NULL;
mutex_unlock(&net->proc_cells_lock);
inode_lock(root->d_inode);
if (root) {
inode_lock(root->d_inode);
/* Remove all the pins for dirs created for manually added cells */
list_for_each_entry_safe(subdir, tmp, &root->d_subdirs, d_child) {
if (subdir->d_fsdata) {
subdir->d_fsdata = NULL;
dput(subdir);
/* Remove all the pins for dirs created for manually added cells */
list_for_each_entry_safe(subdir, tmp, &root->d_subdirs, d_child) {
if (subdir->d_fsdata) {
subdir->d_fsdata = NULL;
dput(subdir);
}
}
}
inode_unlock(root->d_inode);
inode_unlock(root->d_inode);
}
}

2
fs/btrfs/ctree.h
View file

@ -3271,6 +3271,8 @@ void btrfs_sysfs_remove_mounted(struct btrfs_fs_info *fs_info);
int btrfs_parse_options(struct btrfs_fs_info *info, char *options,
unsigned long new_flags);
int btrfs_sync_fs(struct super_block *sb, int wait);
char *btrfs_get_subvol_name_from_objectid(struct btrfs_fs_info *fs_info,
u64 subvol_objectid);
static inline __printf(2, 3) __cold
void btrfs_no_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...)

8
fs/btrfs/export.c
View file

@ -57,9 +57,9 @@ static int btrfs_encode_fh(struct inode *inode, u32 *fh, int *max_len,
return type;
}
static struct dentry *btrfs_get_dentry(struct super_block *sb, u64 objectid,
u64 root_objectid, u32 generation,
int check_generation)
struct dentry *btrfs_get_dentry(struct super_block *sb, u64 objectid,
u64 root_objectid, u32 generation,
int check_generation)
{
struct btrfs_fs_info *fs_info = btrfs_sb(sb);
struct btrfs_root *root;
@ -152,7 +152,7 @@ static struct dentry *btrfs_fh_to_dentry(struct super_block *sb, struct fid *fh,
return btrfs_get_dentry(sb, objectid, root_objectid, generation, 1);
}
static struct dentry *btrfs_get_parent(struct dentry *child)
struct dentry *btrfs_get_parent(struct dentry *child)
{
struct inode *dir = d_inode(child);
struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb);

5
fs/btrfs/export.h
View file

@ -18,4 +18,9 @@ struct btrfs_fid {
u64 parent_root_objectid;
} __attribute__ ((packed));
struct dentry *btrfs_get_dentry(struct super_block *sb, u64 objectid,
u64 root_objectid, u32 generation,
int check_generation);
struct dentry *btrfs_get_parent(struct dentry *child);
#endif

23
fs/btrfs/inode.c
View file

@ -628,7 +628,21 @@ cont:
PAGE_SET_WRITEBACK |
page_error_op |
PAGE_END_WRITEBACK);
goto free_pages_out;
/*
* Ensure we only free the compressed pages if we have
* them allocated, as we can still reach here with
* inode_need_compress() == false.
*/
if (pages) {
for (i = 0; i < nr_pages; i++) {
WARN_ON(pages[i]->mapping);
put_page(pages[i]);
}
kfree(pages);
}
return;
}
}
@ -706,13 +720,6 @@ cleanup_and_bail_uncompressed:
*num_added += 1;
return;
free_pages_out:
for (i = 0; i < nr_pages; i++) {
WARN_ON(pages[i]->mapping);
put_page(pages[i]);
}
kfree(pages);
}
static void free_async_extent_pages(struct async_extent *async_extent)

18
fs/btrfs/super.c
View file

@ -1000,8 +1000,8 @@ out:
return error;
}
static char *get_subvol_name_from_objectid(struct btrfs_fs_info *fs_info,
u64 subvol_objectid)
char *btrfs_get_subvol_name_from_objectid(struct btrfs_fs_info *fs_info,
u64 subvol_objectid)
{
struct btrfs_root *root = fs_info->tree_root;
struct btrfs_root *fs_root;
@ -1282,6 +1282,7 @@ static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry)
{
struct btrfs_fs_info *info = btrfs_sb(dentry->d_sb);
const char *compress_type;
const char *subvol_name;
if (btrfs_test_opt(info, DEGRADED))
seq_puts(seq, ",degraded");
@ -1366,8 +1367,13 @@ static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry)
seq_puts(seq, ",ref_verify");
seq_printf(seq, ",subvolid=%llu",
BTRFS_I(d_inode(dentry))->root->root_key.objectid);
seq_puts(seq, ",subvol=");
seq_dentry(seq, dentry, " \t\n\\");
subvol_name = btrfs_get_subvol_name_from_objectid(info,
BTRFS_I(d_inode(dentry))->root->root_key.objectid);
if (!IS_ERR(subvol_name)) {
seq_puts(seq, ",subvol=");
seq_escape(seq, subvol_name, " \t\n\\");
kfree(subvol_name);
}
return 0;
}
@ -1412,8 +1418,8 @@ static struct dentry *mount_subvol(const char *subvol_name, u64 subvol_objectid,
goto out;
}
}
subvol_name = get_subvol_name_from_objectid(btrfs_sb(mnt->mnt_sb),
subvol_objectid);
subvol_name = btrfs_get_subvol_name_from_objectid(
btrfs_sb(mnt->mnt_sb), subvol_objectid);
if (IS_ERR(subvol_name)) {
root = ERR_CAST(subvol_name);
subvol_name = NULL;

4
fs/btrfs/sysfs.c
View file

@ -10,6 +10,7 @@
#include <linux/kobject.h>
#include <linux/bug.h>
#include <linux/debugfs.h>
#include <linux/sched/mm.h>
#include "ctree.h"
#include "disk-io.h"
@ -766,7 +767,9 @@ int btrfs_sysfs_add_device_link(struct btrfs_fs_devices *fs_devices,
{
int error = 0;
struct btrfs_device *dev;
unsigned int nofs_flag;
nofs_flag = memalloc_nofs_save();
list_for_each_entry(dev, &fs_devices->devices, dev_list) {
struct hd_struct *disk;
struct kobject *disk_kobj;
@ -785,6 +788,7 @@ int btrfs_sysfs_add_device_link(struct btrfs_fs_devices *fs_devices,
if (error)
break;
}
memalloc_nofs_restore(nofs_flag);
return error;
}

3
fs/ceph/mds_client.c
View file

@ -3682,7 +3682,6 @@ int ceph_mdsc_init(struct ceph_fs_client *fsc)
return -ENOMEM;
}
fsc->mdsc = mdsc;
init_completion(&mdsc->safe_umount_waiters);
init_waitqueue_head(&mdsc->session_close_wq);
INIT_LIST_HEAD(&mdsc->waiting_for_map);
@ -3723,6 +3722,8 @@ int ceph_mdsc_init(struct ceph_fs_client *fsc)
strscpy(mdsc->nodename, utsname()->nodename,
sizeof(mdsc->nodename));
fsc->mdsc = mdsc;
return 0;
}

19
fs/eventpoll.c
View file

@ -1892,9 +1892,11 @@ static int ep_loop_check_proc(void *priv, void *cookie, int call_nests)
* not already there, and calling reverse_path_check()
* during ep_insert().
*/
if (list_empty(&epi->ffd.file->f_tfile_llink))
if (list_empty(&epi->ffd.file->f_tfile_llink)) {
get_file(epi->ffd.file);
list_add(&epi->ffd.file->f_tfile_llink,
&tfile_check_list);
}
}
}
mutex_unlock(&ep->mtx);
@ -1938,6 +1940,7 @@ static void clear_tfile_check_list(void)
file = list_first_entry(&tfile_check_list, struct file,
f_tfile_llink);
list_del_init(&file->f_tfile_llink);
fput(file);
}
INIT_LIST_HEAD(&tfile_check_list);
}
@ -2093,13 +2096,13 @@ SYSCALL_DEFINE4(epoll_ctl, int, epfd, int, op, int, fd,
mutex_lock(&epmutex);
if (is_file_epoll(tf.file)) {
error = -ELOOP;
if (ep_loop_check(ep, tf.file) != 0) {
clear_tfile_check_list();
if (ep_loop_check(ep, tf.file) != 0)
goto error_tgt_fput;
}
} else
} else {
get_file(tf.file);
list_add(&tf.file->f_tfile_llink,
&tfile_check_list);
}
mutex_lock_nested(&ep->mtx, 0);
if (is_file_epoll(tf.file)) {
tep = tf.file->private_data;
@ -2123,8 +2126,6 @@ SYSCALL_DEFINE4(epoll_ctl, int, epfd, int, op, int, fd,
error = ep_insert(ep, &epds, tf.file, fd, full_check);
} else
error = -EEXIST;
if (full_check)
clear_tfile_check_list();
break;
case EPOLL_CTL_DEL:
if (epi)
@ -2147,8 +2148,10 @@ SYSCALL_DEFINE4(epoll_ctl, int, epfd, int, op, int, fd,
mutex_unlock(&ep->mtx);
error_tgt_fput:
if (full_check)
if (full_check) {
clear_tfile_check_list();
mutex_unlock(&epmutex);
}
fdput(tf);
error_fput:

34
fs/ext4/block_validity.c
View file

@ -68,7 +68,7 @@ static int add_system_zone(struct ext4_system_blocks *system_blks,
ext4_fsblk_t start_blk,
unsigned int count)
{
struct ext4_system_zone *new_entry = NULL, *entry;
struct ext4_system_zone *new_entry, *entry;
struct rb_node **n = &system_blks->root.rb_node, *node;
struct rb_node *parent = NULL, *new_node = NULL;
@ -79,30 +79,20 @@ static int add_system_zone(struct ext4_system_blocks *system_blks,
n = &(*n)->rb_left;
else if (start_blk >= (entry->start_blk + entry->count))
n = &(*n)->rb_right;
else {
if (start_blk + count > (entry->start_blk +
entry->count))
entry->count = (start_blk + count -
entry->start_blk);
new_node = *n;
new_entry = rb_entry(new_node, struct ext4_system_zone,
node);
break;
}
else /* Unexpected overlap of system zones. */
return -EFSCORRUPTED;
}
if (!new_entry) {
new_entry = kmem_cache_alloc(ext4_system_zone_cachep,
GFP_KERNEL);
if (!new_entry)
return -ENOMEM;
new_entry->start_blk = start_blk;
new_entry->count = count;
new_node = &new_entry->node;
new_entry = kmem_cache_alloc(ext4_system_zone_cachep,
GFP_KERNEL);
if (!new_entry)
return -ENOMEM;
new_entry->start_blk = start_blk;
new_entry->count = count;
new_node = &new_entry->node;
rb_link_node(new_node, parent, n);
rb_insert_color(new_node, &system_blks->root);
}
rb_link_node(new_node, parent, n);
rb_insert_color(new_node, &system_blks->root);
/* Can we merge to the left? */
node = rb_prev(new_node);

22
fs/ext4/namei.c
View file

@ -1468,8 +1468,8 @@ int ext4_search_dir(struct buffer_head *bh, char *search_buf, int buf_size,
ext4_match(dir, fname, de)) {
/* found a match - just to be sure, do
* a full check */
if (ext4_check_dir_entry(dir, NULL, de, bh, bh->b_data,
bh->b_size, lblk, offset))
if (ext4_check_dir_entry(dir, NULL, de, bh, search_buf,
buf_size, lblk, offset))
return -1;
*res_dir = de;
return 1;
@ -1939,7 +1939,7 @@ static struct ext4_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
blocksize, hinfo, map);
map -= count;
dx_sort_map(map, count);
/* Split the existing block in the middle, size-wise */
/* Ensure that neither split block is over half full */
size = 0;
move = 0;
for (i = count-1; i >= 0; i--) {
@ -1949,8 +1949,18 @@ static struct ext4_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
size += map[i].size;
move++;
}
/* map index at which we will split */
split = count - move;
/*
* map index at which we will split
*
* If the sum of active entries didn't exceed half the block size, just
* split it in half by count; each resulting block will have at least
* half the space free.
*/
if (i > 0)
split = count - move;
else
split = count/2;
hash2 = map[split].hash;
continued = hash2 == map[split - 1].hash;
dxtrace(printk(KERN_INFO "Split block %lu at %x, %i/%i\n",
@ -2579,7 +2589,7 @@ int ext4_generic_delete_entry(handle_t *handle,
de = (struct ext4_dir_entry_2 *)entry_buf;
while (i < buf_size - csum_size) {
if (ext4_check_dir_entry(dir, NULL, de, bh,
bh->b_data, bh->b_size, lblk, i))
entry_buf, buf_size, lblk, i))
return -EFSCORRUPTED;
if (de == de_del) {
if (pde)

4
fs/jbd2/journal.c
View file

@ -1370,8 +1370,10 @@ static int jbd2_write_superblock(journal_t *journal, int write_flags)
int ret;
/* Buffer got discarded which means block device got invalidated */
if (!buffer_mapped(bh))
if (!buffer_mapped(bh)) {
unlock_buffer(bh);
return -EIO;
}
trace_jbd2_write_superblock(journal, write_flags);
if (!(journal->j_flags & JBD2_BARRIER))

6
fs/jffs2/dir.c
View file

@ -590,10 +590,14 @@ static int jffs2_rmdir (struct inode *dir_i, struct dentry *dentry)
int ret;
uint32_t now = JFFS2_NOW();
mutex_lock(&f->sem);
for (fd = f->dents ; fd; fd = fd->next) {
if (fd->ino)
if (fd->ino) {
mutex_unlock(&f->sem);
return -ENOTEMPTY;
}
}
mutex_unlock(&f->sem);
ret = jffs2_do_unlink(c, dir_f, dentry->d_name.name,
dentry->d_name.len, f, now);

4
fs/romfs/storage.c
View file

@ -221,10 +221,8 @@ int romfs_dev_read(struct super_block *sb, unsigned long pos,
size_t limit;
limit = romfs_maxsize(sb);
if (pos >= limit)
if (pos >= limit || buflen > limit - pos)
return -EIO;
if (buflen > limit - pos)
buflen = limit - pos;
#ifdef CONFIG_ROMFS_ON_MTD
if (sb->s_mtd)

10
fs/signalfd.c
View file

@ -313,9 +313,10 @@ SYSCALL_DEFINE4(signalfd4, int, ufd, sigset_t __user *, user_mask,
{
sigset_t mask;
if (sizemask != sizeof(sigset_t) ||
copy_from_user(&mask, user_mask, sizeof(mask)))
if (sizemask != sizeof(sigset_t))
return -EINVAL;
if (copy_from_user(&mask, user_mask, sizeof(mask)))
return -EFAULT;
return do_signalfd4(ufd, &mask, flags);
}
@ -324,9 +325,10 @@ SYSCALL_DEFINE3(signalfd, int, ufd, sigset_t __user *, user_mask,
{
sigset_t mask;
if (sizemask != sizeof(sigset_t) ||
copy_from_user(&mask, user_mask, sizeof(mask)))
if (sizemask != sizeof(sigset_t))
return -EINVAL;
if (copy_from_user(&mask, user_mask, sizeof(mask)))
return -EFAULT;
return do_signalfd4(ufd, &mask, 0);
}

6
fs/xfs/xfs_sysfs.h
View file

@ -32,9 +32,11 @@ xfs_sysfs_init(
struct xfs_kobj *parent_kobj,
const char *name)
{
struct kobject *parent;
parent = parent_kobj ? &parent_kobj->kobject : NULL;
init_completion(&kobj->complete);
return kobject_init_and_add(&kobj->kobject, ktype,
&parent_kobj->kobject, "%s", name);
return kobject_init_and_add(&kobj->kobject, ktype, parent, "%s", name);
}
static inline void

2
fs/xfs/xfs_trans_dquot.c
View file

@ -657,7 +657,7 @@ xfs_trans_dqresv(
}
}
if (ninos > 0) {
total_count = be64_to_cpu(dqp->q_core.d_icount) + ninos;
total_count = dqp->q_res_icount + ninos;
timer = be32_to_cpu(dqp->q_core.d_itimer);
warns = be16_to_cpu(dqp->q_core.d_iwarns);
warnlimit = dqp->q_mount->m_quotainfo->qi_iwarnlimit;

17
kernel/kthread.c
View file

@ -191,8 +191,15 @@ static void __kthread_parkme(struct kthread *self)
if (!test_bit(KTHREAD_SHOULD_PARK, &self->flags))
break;
/*
* Thread is going to call schedule(), do not preempt it,
* or the caller of kthread_park() may spend more time in
* wait_task_inactive().
*/
preempt_disable();
complete(&self->parked);
schedule();
schedule_preempt_disabled();
preempt_enable();
}
__set_current_state(TASK_RUNNING);
}
@ -237,8 +244,14 @@ static int kthread(void *_create)
/* OK, tell user we're spawned, wait for stop or wakeup */
__set_current_state(TASK_UNINTERRUPTIBLE);
create->result = current;
/*
* Thread is going to call schedule(), do not preempt it,
* or the creator may spend more time in wait_task_inactive().
*/
preempt_disable();
complete(done);
schedule();
schedule_preempt_disabled();
preempt_enable();
ret = -EINTR;
if (!test_bit(KTHREAD_SHOULD_STOP, &self->flags)) {

1
kernel/relay.c
View file

@ -197,6 +197,7 @@ free_buf:
static void relay_destroy_channel(struct kref *kref)
{
struct rchan *chan = container_of(kref, struct rchan, kref);
free_percpu(chan->buf);
kfree(chan);
}

24
mm/hugetlb.c
View file

@ -4650,25 +4650,21 @@ static bool vma_shareable(struct vm_area_struct *vma, unsigned long addr)
void adjust_range_if_pmd_sharing_possible(struct vm_area_struct *vma,
unsigned long *start, unsigned long *end)
{
unsigned long check_addr = *start;
unsigned long a_start, a_end;
if (!(vma->vm_flags & VM_MAYSHARE))
return;
for (check_addr = *start; check_addr < *end; check_addr += PUD_SIZE) {
unsigned long a_start = check_addr & PUD_MASK;
unsigned long a_end = a_start + PUD_SIZE;
/* Extend the range to be PUD aligned for a worst case scenario */
a_start = ALIGN_DOWN(*start, PUD_SIZE);
a_end = ALIGN(*end, PUD_SIZE);
/*
* If sharing is possible, adjust start/end if necessary.
*/
if (range_in_vma(vma, a_start, a_end)) {
if (a_start < *start)
*start = a_start;
if (a_end > *end)
*end = a_end;
}
}
/*
* Intersect the range with the vma range, since pmd sharing won't be
* across vma after all
*/
*start = max(vma->vm_start, a_start);
*end = min(vma->vm_end, a_end);
}
/*

7
mm/khugepaged.c
View file

@ -394,7 +394,7 @@ static void insert_to_mm_slots_hash(struct mm_struct *mm,
static inline int khugepaged_test_exit(struct mm_struct *mm)
{
return atomic_read(&mm->mm_users) == 0;
return atomic_read(&mm->mm_users) == 0 || !mmget_still_valid(mm);
}
static bool hugepage_vma_check(struct vm_area_struct *vma,
@ -427,7 +427,7 @@ int __khugepaged_enter(struct mm_struct *mm)
return -ENOMEM;
/* __khugepaged_exit() must not run from under us */
VM_BUG_ON_MM(khugepaged_test_exit(mm), mm);
VM_BUG_ON_MM(atomic_read(&mm->mm_users) == 0, mm);
if (unlikely(test_and_set_bit(MMF_VM_HUGEPAGE, &mm->flags))) {
free_mm_slot(mm_slot);
return 0;
@ -1005,9 +1005,6 @@ static void collapse_huge_page(struct mm_struct *mm,
* handled by the anon_vma lock + PG_lock.
*/
down_write(&mm->mmap_sem);
result = SCAN_ANY_PROCESS;
if (!mmget_still_valid(mm))
goto out;
result = hugepage_vma_revalidate(mm, address, &vma);
if (result)
goto out;

7
mm/page_alloc.c
View file

@ -1188,6 +1188,11 @@ static void free_pcppages_bulk(struct zone *zone, int count,
struct page *page, *tmp;
LIST_HEAD(head);
/*
* Ensure proper count is passed which otherwise would stuck in the
* below while (list_empty(list)) loop.
*/
count = min(pcp->count, count);
while (count) {
struct list_head *list;
@ -7555,7 +7560,7 @@ int __meminit init_per_zone_wmark_min(void)
return 0;
}
core_initcall(init_per_zone_wmark_min)
postcore_initcall(init_per_zone_wmark_min)
/*
* min_free_kbytes_sysctl_handler - just a wrapper around proc_dointvec() so

2
net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
View file

@ -268,6 +268,8 @@ static int svc_rdma_post_recv(struct svcxprt_rdma *rdma)
{
struct svc_rdma_recv_ctxt *ctxt;
if (test_bit(XPT_CLOSE, &rdma->sc_xprt.xpt_flags))
return 0;
ctxt = svc_rdma_recv_ctxt_get(rdma);
if (!ctxt)
return -ENOMEM;

68
scripts/kconfig/qconf.cc
View file

@ -869,40 +869,40 @@ void ConfigList::focusInEvent(QFocusEvent *e)
void ConfigList::contextMenuEvent(QContextMenuEvent *e)
{
if (e->y() <= header()->geometry().bottom()) {
if (!headerPopup) {
QAction *action;
if (!headerPopup) {
QAction *action;
headerPopup = new QMenu(this);
action = new QAction("Show Name", this);
action->setCheckable(true);
connect(action, SIGNAL(toggled(bool)),
parent(), SLOT(setShowName(bool)));
connect(parent(), SIGNAL(showNameChanged(bool)),
action, SLOT(setOn(bool)));
action->setChecked(showName);
headerPopup->addAction(action);
action = new QAction("Show Range", this);
action->setCheckable(true);
connect(action, SIGNAL(toggled(bool)),
parent(), SLOT(setShowRange(bool)));
connect(parent(), SIGNAL(showRangeChanged(bool)),
action, SLOT(setOn(bool)));
action->setChecked(showRange);
headerPopup->addAction(action);
action = new QAction("Show Data", this);
action->setCheckable(true);
connect(action, SIGNAL(toggled(bool)),
parent(), SLOT(setShowData(bool)));
connect(parent(), SIGNAL(showDataChanged(bool)),
action, SLOT(setOn(bool)));
action->setChecked(showData);
headerPopup->addAction(action);
}
headerPopup->exec(e->globalPos());
e->accept();
} else
e->ignore();
headerPopup = new QMenu(this);
action = new QAction("Show Name", this);
action->setCheckable(true);
connect(action, SIGNAL(toggled(bool)),
parent(), SLOT(setShowName(bool)));
connect(parent(), SIGNAL(showNameChanged(bool)),
action, SLOT(setChecked(bool)));
action->setChecked(showName);
headerPopup->addAction(action);
action = new QAction("Show Range", this);
action->setCheckable(true);
connect(action, SIGNAL(toggled(bool)),
parent(), SLOT(setShowRange(bool)));
connect(parent(), SIGNAL(showRangeChanged(bool)),
action, SLOT(setChecked(bool)));
action->setChecked(showRange);
headerPopup->addAction(action);
action = new QAction("Show Data", this);
action->setCheckable(true);
connect(action, SIGNAL(toggled(bool)),
parent(), SLOT(setShowData(bool)));
connect(parent(), SIGNAL(showDataChanged(bool)),
action, SLOT(setChecked(bool)));
action->setChecked(showData);
headerPopup->addAction(action);
}
headerPopup->exec(e->globalPos());
e->accept();
}
ConfigView*ConfigView::viewList;
@ -1228,7 +1228,7 @@ QMenu* ConfigInfoView::createStandardContextMenu(const QPoint & pos)
action->setCheckable(true);
connect(action, SIGNAL(toggled(bool)), SLOT(setShowDebug(bool)));
connect(this, SIGNAL(showDebugChanged(bool)), action, SLOT(setOn(bool)));
connect(this, SIGNAL(showDebugChanged(bool)), action, SLOT(setChecked(bool)));
action->setChecked(showDebug());
popup->addSeparator();
popup->addAction(action);

4
sound/soc/codecs/msm8916-wcd-analog.c
View file

@ -16,8 +16,8 @@
#define CDC_D_REVISION1 (0xf000)
#define CDC_D_PERPH_SUBTYPE (0xf005)
#define CDC_D_INT_EN_SET (0x015)
#define CDC_D_INT_EN_CLR (0x016)
#define CDC_D_INT_EN_SET (0xf015)
#define CDC_D_INT_EN_CLR (0xf016)
#define MBHC_SWITCH_INT BIT(7)
#define MBHC_MIC_ELECTRICAL_INS_REM_DET BIT(6)
#define MBHC_BUTTON_PRESS_DET BIT(5)

5
sound/soc/intel/atom/sst-mfld-platform-pcm.c
View file

@ -339,7 +339,7 @@ static int sst_media_open(struct snd_pcm_substream *substream,
ret_val = power_up_sst(stream);
if (ret_val < 0)
return ret_val;
goto out_power_up;
/* Make sure, that the period size is always even */
snd_pcm_hw_constraint_step(substream->runtime, 0,
@ -348,8 +348,9 @@ static int sst_media_open(struct snd_pcm_substream *substream,
return snd_pcm_hw_constraint_integer(runtime,
SNDRV_PCM_HW_PARAM_PERIODS);
out_ops:
kfree(stream);
mutex_unlock(&sst_lock);
out_power_up:
kfree(stream);
return ret_val;
}

16
sound/soc/qcom/qdsp6/q6routing.c
View file

@ -968,6 +968,20 @@ static int msm_routing_probe(struct snd_soc_component *c)
return 0;
}
static unsigned int q6routing_reg_read(struct snd_soc_component *component,
unsigned int reg)
{
/* default value */
return 0;
}
static int q6routing_reg_write(struct snd_soc_component *component,
unsigned int reg, unsigned int val)
{
/* dummy */
return 0;
}
static const struct snd_soc_component_driver msm_soc_routing_component = {
.ops = &q6pcm_routing_ops,
.probe = msm_routing_probe,
@ -976,6 +990,8 @@ static const struct snd_soc_component_driver msm_soc_routing_component = {
.num_dapm_widgets = ARRAY_SIZE(msm_qdsp6_widgets),
.dapm_routes = intercon,
.num_dapm_routes = ARRAY_SIZE(intercon),
.read = q6routing_reg_read,
.write = q6routing_reg_write,
};
static int q6pcm_routing_probe(struct platform_device *pdev)

2
tools/perf/util/probe-finder.c
View file

@ -1351,7 +1351,7 @@ int debuginfo__find_trace_events(struct debuginfo *dbg,
tf.ntevs = 0;
ret = debuginfo__find_probes(dbg, &tf.pf);
if (ret < 0) {
if (ret < 0 || tf.ntevs == 0) {
for (i = 0; i < tf.ntevs; i++)
clear_probe_trace_event(&tf.tevs[i]);
zfree(tevs);

2
tools/testing/selftests/cgroup/cgroup_util.c
View file

@ -95,7 +95,7 @@ int cg_read_strcmp(const char *cgroup, const char *control,
/* Handle the case of comparing against empty string */
if (!expected)
size = 32;
return -1;
else
size = strlen(expected) + 1;

18
virt/kvm/arm/mmu.c
View file

@ -323,7 +323,8 @@ static void unmap_stage2_puds(struct kvm *kvm, pgd_t *pgd,
* destroying the VM), otherwise another faulting VCPU may come in and mess
* with things behind our backs.
*/
static void unmap_stage2_range(struct kvm *kvm, phys_addr_t start, u64 size)
static void __unmap_stage2_range(struct kvm *kvm, phys_addr_t start, u64 size,
bool may_block)
{
pgd_t *pgd;
phys_addr_t addr = start, end = start + size;
@ -348,11 +349,16 @@ static void unmap_stage2_range(struct kvm *kvm, phys_addr_t start, u64 size)
* If the range is too large, release the kvm->mmu_lock
* to prevent starvation and lockup detector warnings.
*/
if (next != end)
if (may_block && next != end)
cond_resched_lock(&kvm->mmu_lock);
} while (pgd++, addr = next, addr != end);
}
static void unmap_stage2_range(struct kvm *kvm, phys_addr_t start, u64 size)
{
__unmap_stage2_range(kvm, start, size, true);
}
static void stage2_flush_ptes(struct kvm *kvm, pmd_t *pmd,
phys_addr_t addr, phys_addr_t end)
{
@ -1820,18 +1826,20 @@ static int handle_hva_to_gpa(struct kvm *kvm,
static int kvm_unmap_hva_handler(struct kvm *kvm, gpa_t gpa, u64 size, void *data)
{
unmap_stage2_range(kvm, gpa, size);
bool may_block = *(bool *)data;
__unmap_stage2_range(kvm, gpa, size, may_block);
return 0;
}
int kvm_unmap_hva_range(struct kvm *kvm,
unsigned long start, unsigned long end)
unsigned long start, unsigned long end, bool blockable)
{
if (!kvm->arch.pgd)
return 0;
trace_kvm_unmap_hva_range(start, end);
handle_hva_to_gpa(kvm, start, end, &kvm_unmap_hva_handler, NULL);
handle_hva_to_gpa(kvm, start, end, &kvm_unmap_hva_handler, &blockable);
return 0;
}

2
virt/kvm/kvm_main.c
View file

@ -410,7 +410,7 @@ static int kvm_mmu_notifier_invalidate_range_start(struct mmu_notifier *mn,
* count is also read inside the mmu_lock critical section.
*/
kvm->mmu_notifier_count++;
need_tlb_flush = kvm_unmap_hva_range(kvm, start, end);
need_tlb_flush = kvm_unmap_hva_range(kvm, start, end, blockable);
need_tlb_flush |= kvm->tlbs_dirty;
/* we've to flush the tlb before the pages can be freed */
if (need_tlb_flush)