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Merge tag 'v5.19-rc1' into android-mainline

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Linux 5.19-rc1

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I6e605b4d992b9fad67a80f15f4532b0b28bd5733
This commit is contained in:
Greg Kroah-Hartman
2022-07-08 10:40:53 +02:00
parent d5fe95e161 f2906aa863
commit d065060589
62 changed files with 417 additions and 395 deletions
Download Patch File Download Diff File Expand all files Collapse all files
.mailmap
+2
View File
@@ -201,6 +201,8 @@ Jordan Crouse <jordan@cosmicpenguin.net> <jcrouse@codeaurora.org>
<josh@joshtriplett.org> <josht@linux.vnet.ibm.com>
<josh@joshtriplett.org> <josht@us.ibm.com>
<josh@joshtriplett.org> <josht@vnet.ibm.com>
Josh Poimboeuf <jpoimboe@kernel.org> <jpoimboe@redhat.com>
Josh Poimboeuf <jpoimboe@kernel.org> <jpoimboe@us.ibm.com>
Juha Yrjola <at solidboot.com>
Juha Yrjola <juha.yrjola@nokia.com>
Juha Yrjola <juha.yrjola@solidboot.com>
Documentation/accounting/delay-accounting.rst
+4 -1
View File
@@ -15,6 +15,7 @@ c) swapping in pages
d) memory reclaim
e) thrashing page cache
f) direct compact
g) write-protect copy
and makes these statistics available to userspace through
the taskstats interface.
@@ -48,7 +49,7 @@ this structure. See
for a description of the fields pertaining to delay accounting.
It will generally be in the form of counters returning the cumulative
delay seen for cpu, sync block I/O, swapin, memory reclaim, thrash page
cache, direct compact etc.
cache, direct compact, write-protect copy etc.
Taking the difference of two successive readings of a given
counter (say cpu_delay_total) for a task will give the delay
@@ -117,6 +118,8 @@ Get sum of delays, since system boot, for all pids with tgid 5::
0 0 0ms
COMPACT count delay total delay average
0 0 0ms
WPCOPY count delay total delay average
0 0 0ms
Get IO accounting for pid 1, it works only with -p::
Documentation/devicetree/bindings/timer/mediatek,mtk-timer.txt
+1
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@@ -23,6 +23,7 @@ Required properties:
For those SoCs that use SYST
* "mediatek,mt8183-timer" for MT8183 compatible timers (SYST)
* "mediatek,mt8186-timer" for MT8186 compatible timers (SYST)
* "mediatek,mt8192-timer" for MT8192 compatible timers (SYST)
* "mediatek,mt8195-timer" for MT8195 compatible timers (SYST)
* "mediatek,mt7629-timer" for MT7629 compatible timers (SYST)
MAINTAINERS
+7
View File
@@ -22009,6 +22009,13 @@ L: linux-mm@kvack.org
S: Maintained
F: mm/zbud.c
Z3FOLD COMPRESSED PAGE ALLOCATOR
M: Vitaly Wool <vitaly.wool@konsulko.com>
R: Miaohe Lin <linmiaohe@huawei.com>
L: linux-mm@kvack.org
S: Maintained
F: mm/z3fold.c
ZD1211RW WIRELESS DRIVER
M: Ulrich Kunitz <kune@deine-taler.de>
L: linux-wireless@vger.kernel.org
Makefile
+2 -2
View File
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 5
PATCHLEVEL = 18
PATCHLEVEL = 19
SUBLEVEL = 0
EXTRAVERSION =
EXTRAVERSION = -rc1
NAME = Superb Owl
# *DOCUMENTATION*
arch/Kconfig
+4
View File
@@ -1048,6 +1048,10 @@ config HAVE_NOINSTR_HACK
config HAVE_NOINSTR_VALIDATION
bool
config HAVE_UACCESS_VALIDATION
bool
select OBJTOOL
config HAVE_STACK_VALIDATION
bool
help
arch/x86/Kconfig
+57 -61
View File
@@ -41,11 +41,11 @@ config FORCE_DYNAMIC_FTRACE
depends on FUNCTION_TRACER
select DYNAMIC_FTRACE
help
We keep the static function tracing (!DYNAMIC_FTRACE) around
in order to test the non static function tracing in the
generic code, as other architectures still use it. But we
only need to keep it around for x86_64. No need to keep it
for x86_32. For x86_32, force DYNAMIC_FTRACE.
We keep the static function tracing (!DYNAMIC_FTRACE) around
in order to test the non static function tracing in the
generic code, as other architectures still use it. But we
only need to keep it around for x86_64. No need to keep it
for x86_32. For x86_32, force DYNAMIC_FTRACE.
#
# Arch settings
#
@@ -258,6 +258,7 @@ config X86
select HAVE_PREEMPT_DYNAMIC_CALL
select HAVE_RSEQ
select HAVE_SYSCALL_TRACEPOINTS
select HAVE_UACCESS_VALIDATION if HAVE_OBJTOOL
select HAVE_UNSTABLE_SCHED_CLOCK
select HAVE_USER_RETURN_NOTIFIER
select HAVE_GENERIC_VDSO
@@ -393,9 +394,9 @@ config CC_HAS_SANE_STACKPROTECTOR
default $(success,$(srctree)/scripts/gcc-x86_64-has-stack-protector.sh $(CC)) if 64BIT
default $(success,$(srctree)/scripts/gcc-x86_32-has-stack-protector.sh $(CC))
help
We have to make sure stack protector is unconditionally disabled if
the compiler produces broken code or if it does not let us control
the segment on 32-bit kernels.
We have to make sure stack protector is unconditionally disabled if
the compiler produces broken code or if it does not let us control
the segment on 32-bit kernels.
menu "Processor type and features"
@@ -531,7 +532,7 @@ config X86_EXTENDED_PLATFORM
If you have one of these systems, or if you want to build a
generic distribution kernel, say Y here - otherwise say N.
endif
endif # X86_32
if X86_64
config X86_EXTENDED_PLATFORM
@@ -550,7 +551,7 @@ config X86_EXTENDED_PLATFORM
If you have one of these systems, or if you want to build a
generic distribution kernel, say Y here - otherwise say N.
endif
endif # X86_64
# This is an alphabetically sorted list of 64 bit extended platforms
# Please maintain the alphabetic order if and when there are additions
config X86_NUMACHIP
@@ -598,9 +599,9 @@ config X86_GOLDFISH
bool "Goldfish (Virtual Platform)"
depends on X86_EXTENDED_PLATFORM
help
Enable support for the Goldfish virtual platform used primarily
for Android development. Unless you are building for the Android
Goldfish emulator say N here.
Enable support for the Goldfish virtual platform used primarily
for Android development. Unless you are building for the Android
Goldfish emulator say N here.
config X86_INTEL_CE
bool "CE4100 TV platform"
@@ -899,7 +900,7 @@ config INTEL_TDX_GUEST
memory contents and CPU state. TDX guests are protected from
some attacks from the VMM.
endif #HYPERVISOR_GUEST
endif # HYPERVISOR_GUEST
source "arch/x86/Kconfig.cpu"
@@ -1166,16 +1167,16 @@ config X86_MCE_INTEL
prompt "Intel MCE features"
depends on X86_MCE && X86_LOCAL_APIC
help
Additional support for intel specific MCE features such as
the thermal monitor.
Additional support for intel specific MCE features such as
the thermal monitor.
config X86_MCE_AMD
def_bool y
prompt "AMD MCE features"
depends on X86_MCE && X86_LOCAL_APIC && AMD_NB
help
Additional support for AMD specific MCE features such as
the DRAM Error Threshold.
Additional support for AMD specific MCE features such as
the DRAM Error Threshold.
config X86_ANCIENT_MCE
bool "Support for old Pentium 5 / WinChip machine checks"
@@ -1253,18 +1254,18 @@ config X86_VSYSCALL_EMULATION
default y
depends on X86_64
help
This enables emulation of the legacy vsyscall page. Disabling
it is roughly equivalent to booting with vsyscall=none, except
that it will also disable the helpful warning if a program
tries to use a vsyscall. With this option set to N, offending
programs will just segfault, citing addresses of the form
0xffffffffff600?00.
This enables emulation of the legacy vsyscall page. Disabling
it is roughly equivalent to booting with vsyscall=none, except
that it will also disable the helpful warning if a program
tries to use a vsyscall. With this option set to N, offending
programs will just segfault, citing addresses of the form
0xffffffffff600?00.
This option is required by many programs built before 2013, and
care should be used even with newer programs if set to N.
This option is required by many programs built before 2013, and
care should be used even with newer programs if set to N.
Disabling this option saves about 7K of kernel size and
possibly 4K of additional runtime pagetable memory.
Disabling this option saves about 7K of kernel size and
possibly 4K of additional runtime pagetable memory.
config X86_IOPL_IOPERM
bool "IOPERM and IOPL Emulation"
@@ -1357,17 +1358,16 @@ config MICROCODE_AMD
If you select this option, microcode patch loading support for AMD
processors will be enabled.
config MICROCODE_OLD_INTERFACE
bool "Ancient loading interface (DEPRECATED)"
config MICROCODE_LATE_LOADING
bool "Late microcode loading (DANGEROUS)"
default n
depends on MICROCODE
help
DO NOT USE THIS! This is the ancient /dev/cpu/microcode interface
which was used by userspace tools like iucode_tool and microcode.ctl.
It is inadequate because it runs too late to be able to properly
load microcode on a machine and it needs special tools. Instead, you
should've switched to the early loading method with the initrd or
builtin microcode by now: Documentation/x86/microcode.rst
Loading microcode late, when the system is up and executing instructions
is a tricky business and should be avoided if possible. Just the sequence
of synchronizing all cores and SMT threads is one fragile dance which does
not guarantee that cores might not softlock after the loading. Therefore,
use this at your own risk. Late loading taints the kernel too.
config X86_MSR
tristate "/dev/cpu/*/msr - Model-specific register support"
@@ -2001,15 +2001,15 @@ config EFI_MIXED
bool "EFI mixed-mode support"
depends on EFI_STUB && X86_64
help
Enabling this feature allows a 64-bit kernel to be booted
on a 32-bit firmware, provided that your CPU supports 64-bit
mode.
Enabling this feature allows a 64-bit kernel to be booted
on a 32-bit firmware, provided that your CPU supports 64-bit
mode.
Note that it is not possible to boot a mixed-mode enabled
kernel via the EFI boot stub - a bootloader that supports
the EFI handover protocol must be used.
Note that it is not possible to boot a mixed-mode enabled
kernel via the EFI boot stub - a bootloader that supports
the EFI handover protocol must be used.
If unsure, say N.
If unsure, say N.
source "kernel/Kconfig.hz"
@@ -2234,16 +2234,16 @@ config RANDOMIZE_MEMORY
select DYNAMIC_MEMORY_LAYOUT
default RANDOMIZE_BASE
help
Randomizes the base virtual address of kernel memory sections
(physical memory mapping, vmalloc & vmemmap). This security feature
makes exploits relying on predictable memory locations less reliable.
Randomizes the base virtual address of kernel memory sections
(physical memory mapping, vmalloc & vmemmap). This security feature
makes exploits relying on predictable memory locations less reliable.
The order of allocations remains unchanged. Entropy is generated in
the same way as RANDOMIZE_BASE. Current implementation in the optimal
configuration have in average 30,000 different possible virtual
addresses for each memory section.
The order of allocations remains unchanged. Entropy is generated in
the same way as RANDOMIZE_BASE. Current implementation in the optimal
configuration have in average 30,000 different possible virtual
addresses for each memory section.
If unsure, say Y.
If unsure, say Y.
config RANDOMIZE_MEMORY_PHYSICAL_PADDING
hex "Physical memory mapping padding" if EXPERT
@@ -2253,12 +2253,12 @@ config RANDOMIZE_MEMORY_PHYSICAL_PADDING
range 0x1 0x40 if MEMORY_HOTPLUG
range 0x0 0x40
help
Define the padding in terabytes added to the existing physical
memory size during kernel memory randomization. It is useful
for memory hotplug support but reduces the entropy available for
address randomization.
Define the padding in terabytes added to the existing physical
memory size during kernel memory randomization. It is useful
for memory hotplug support but reduces the entropy available for
address randomization.
If unsure, leave at the default value.
If unsure, leave at the default value.
config HOTPLUG_CPU
def_bool y
@@ -2605,7 +2605,6 @@ source "drivers/idle/Kconfig"
endmenu
menu "Bus options (PCI etc.)"
choice
@@ -2829,7 +2828,6 @@ config AMD_NB
endmenu
menu "Binary Emulations"
config IA32_EMULATION
@@ -2867,14 +2865,12 @@ config COMPAT
def_bool y
depends on IA32_EMULATION || X86_X32_ABI
if COMPAT
config COMPAT_FOR_U64_ALIGNMENT
def_bool y
endif
depends on COMPAT
endmenu
config HAVE_ATOMIC_IOMAP
def_bool y
depends on X86_32
arch/x86/Kconfig.debug
+14 -15
View File
@@ -73,20 +73,19 @@ config DEBUG_TLBFLUSH
bool "Set upper limit of TLB entries to flush one-by-one"
depends on DEBUG_KERNEL
help
X86-only for now.
X86-only for now.
This option allows the user to tune the amount of TLB entries the
kernel flushes one-by-one instead of doing a full TLB flush. In
certain situations, the former is cheaper. This is controlled by the
tlb_flushall_shift knob under /sys/kernel/debug/x86. If you set it
to -1, the code flushes the whole TLB unconditionally. Otherwise,
for positive values of it, the kernel will use single TLB entry
invalidating instructions according to the following formula:
This option allows the user to tune the amount of TLB entries the
kernel flushes one-by-one instead of doing a full TLB flush. In
certain situations, the former is cheaper. This is controlled by the
tlb_flushall_shift knob under /sys/kernel/debug/x86. If you set it
to -1, the code flushes the whole TLB unconditionally. Otherwise,
for positive values of it, the kernel will use single TLB entry
invalidating instructions according to the following formula:
flush_entries <= active_tlb_entries / 2^tlb_flushall_shift
flush_entries <= active_tlb_entries / 2^tlb_flushall_shift
If in doubt, say "N".
If in doubt, say "N".
config IOMMU_DEBUG
bool "Enable IOMMU debugging"
@@ -119,10 +118,10 @@ config X86_DECODER_SELFTEST
depends on DEBUG_KERNEL && INSTRUCTION_DECODER
depends on !COMPILE_TEST
help
Perform x86 instruction decoder selftests at build time.
This option is useful for checking the sanity of x86 instruction
decoder code.
If unsure, say "N".
Perform x86 instruction decoder selftests at build time.
This option is useful for checking the sanity of x86 instruction
decoder code.
If unsure, say "N".
choice
prompt "IO delay type"
arch/x86/events/Kconfig
+6 -6
View File
@@ -6,24 +6,24 @@ config PERF_EVENTS_INTEL_UNCORE
depends on PERF_EVENTS && CPU_SUP_INTEL && PCI
default y
help
Include support for Intel uncore performance events. These are
available on NehalemEX and more modern processors.
Include support for Intel uncore performance events. These are
available on NehalemEX and more modern processors.
config PERF_EVENTS_INTEL_RAPL
tristate "Intel/AMD rapl performance events"
depends on PERF_EVENTS && (CPU_SUP_INTEL || CPU_SUP_AMD) && PCI
default y
help
Include support for Intel and AMD rapl performance events for power
monitoring on modern processors.
Include support for Intel and AMD rapl performance events for power
monitoring on modern processors.
config PERF_EVENTS_INTEL_CSTATE
tristate "Intel cstate performance events"
depends on PERF_EVENTS && CPU_SUP_INTEL && PCI
default y
help
Include support for Intel cstate performance events for power
monitoring on modern processors.
Include support for Intel cstate performance events for power
monitoring on modern processors.
config PERF_EVENTS_AMD_POWER
depends on PERF_EVENTS && CPU_SUP_AMD
arch/x86/events/intel/core.c
+1 -1
View File
@@ -276,7 +276,7 @@ static struct event_constraint intel_icl_event_constraints[] = {
INTEL_EVENT_CONSTRAINT_RANGE(0x03, 0x0a, 0xf),
INTEL_EVENT_CONSTRAINT_RANGE(0x1f, 0x28, 0xf),
INTEL_EVENT_CONSTRAINT(0x32, 0xf), /* SW_PREFETCH_ACCESS.* */
INTEL_EVENT_CONSTRAINT_RANGE(0x48, 0x54, 0xf),
INTEL_EVENT_CONSTRAINT_RANGE(0x48, 0x56, 0xf),
INTEL_EVENT_CONSTRAINT_RANGE(0x60, 0x8b, 0xf),
INTEL_UEVENT_CONSTRAINT(0x04a3, 0xff), /* CYCLE_ACTIVITY.STALLS_TOTAL */
INTEL_UEVENT_CONSTRAINT(0x10a3, 0xff), /* CYCLE_ACTIVITY.CYCLES_MEM_ANY */
arch/x86/include/asm/cpufeature.h
+1 -1
View File
@@ -54,7 +54,7 @@ extern const char * const x86_power_flags[32];
extern const char * const x86_bug_flags[NBUGINTS*32];
#define test_cpu_cap(c, bit) \
test_bit(bit, (unsigned long *)((c)->x86_capability))
arch_test_bit(bit, (unsigned long *)((c)->x86_capability))
/*
* There are 32 bits/features in each mask word. The high bits
arch/x86/include/asm/extable.h
+6 -2
View File
@@ -42,9 +42,13 @@ extern int ex_get_fixup_type(unsigned long ip);
extern void early_fixup_exception(struct pt_regs *regs, int trapnr);
#ifdef CONFIG_X86_MCE
extern void ex_handler_msr_mce(struct pt_regs *regs, bool wrmsr);
extern void __noreturn ex_handler_msr_mce(struct pt_regs *regs, bool wrmsr);
#else
static inline void ex_handler_msr_mce(struct pt_regs *regs, bool wrmsr) { }
static inline void __noreturn ex_handler_msr_mce(struct pt_regs *regs, bool wrmsr)
{
for (;;)
cpu_relax();
}
#endif
#if defined(CONFIG_BPF_JIT) && defined(CONFIG_X86_64)
arch/x86/include/asm/processor.h
+2 -2
View File
@@ -559,7 +559,7 @@ static __always_inline void native_swapgs(void)
#endif
}
static inline unsigned long current_top_of_stack(void)
static __always_inline unsigned long current_top_of_stack(void)
{
/*
* We can't read directly from tss.sp0: sp0 on x86_32 is special in
@@ -569,7 +569,7 @@ static inline unsigned long current_top_of_stack(void)
return this_cpu_read_stable(cpu_current_top_of_stack);
}
static inline bool on_thread_stack(void)
static __always_inline bool on_thread_stack(void)
{
return (unsigned long)(current_top_of_stack() -
current_stack_pointer) < THREAD_SIZE;
arch/x86/kernel/cpu/common.c
+2
View File
@@ -2222,6 +2222,7 @@ void cpu_init_secondary(void)
}
#endif
#ifdef CONFIG_MICROCODE_LATE_LOADING
/*
* The microcode loader calls this upon late microcode load to recheck features,
* only when microcode has been updated. Caller holds microcode_mutex and CPU
@@ -2251,6 +2252,7 @@ void microcode_check(void)
pr_warn("x86/CPU: CPU features have changed after loading microcode, but might not take effect.\n");
pr_warn("x86/CPU: Please consider either early loading through initrd/built-in or a potential BIOS update.\n");
}
#endif
/*
* Invoked from core CPU hotplug code after hotplug operations
arch/x86/kernel/cpu/microcode/core.c
+11 -104
View File
@@ -373,101 +373,10 @@ static int apply_microcode_on_target(int cpu)
return ret;
}
#ifdef CONFIG_MICROCODE_OLD_INTERFACE
static int do_microcode_update(const void __user *buf, size_t size)
{
int error = 0;
int cpu;
for_each_online_cpu(cpu) {
struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
enum ucode_state ustate;
if (!uci->valid)
continue;
ustate = microcode_ops->request_microcode_user(cpu, buf, size);
if (ustate == UCODE_ERROR) {
error = -1;
break;
} else if (ustate == UCODE_NEW) {
apply_microcode_on_target(cpu);
}
}
return error;
}
static int microcode_open(struct inode *inode, struct file *file)
{
return capable(CAP_SYS_RAWIO) ? stream_open(inode, file) : -EPERM;
}
static ssize_t microcode_write(struct file *file, const char __user *buf,
size_t len, loff_t *ppos)
{
ssize_t ret = -EINVAL;
unsigned long nr_pages = totalram_pages();
if ((len >> PAGE_SHIFT) > nr_pages) {
pr_err("too much data (max %ld pages)\n", nr_pages);
return ret;
}
cpus_read_lock();
mutex_lock(&microcode_mutex);
if (do_microcode_update(buf, len) == 0)
ret = (ssize_t)len;
if (ret > 0)
perf_check_microcode();
mutex_unlock(&microcode_mutex);
cpus_read_unlock();
return ret;
}
static const struct file_operations microcode_fops = {
.owner = THIS_MODULE,
.write = microcode_write,
.open = microcode_open,
.llseek = no_llseek,
};
static struct miscdevice microcode_dev = {
.minor = MICROCODE_MINOR,
.name = "microcode",
.nodename = "cpu/microcode",
.fops = &microcode_fops,
};
static int __init microcode_dev_init(void)
{
int error;
error = misc_register(&microcode_dev);
if (error) {
pr_err("can't misc_register on minor=%d\n", MICROCODE_MINOR);
return error;
}
return 0;
}
static void __exit microcode_dev_exit(void)
{
misc_deregister(&microcode_dev);
}
#else
#define microcode_dev_init() 0
#define microcode_dev_exit() do { } while (0)
#endif
/* fake device for request_firmware */
static struct platform_device *microcode_pdev;
#ifdef CONFIG_MICROCODE_LATE_LOADING
/*
* Late loading dance. Why the heavy-handed stomp_machine effort?
*
@@ -584,6 +493,9 @@ static int microcode_reload_late(void)
{
int ret;
pr_err("Attempting late microcode loading - it is dangerous and taints the kernel.\n");
pr_err("You should switch to early loading, if possible.\n");
atomic_set(&late_cpus_in, 0);
atomic_set(&late_cpus_out, 0);
@@ -632,9 +544,14 @@ put:
if (ret == 0)
ret = size;
add_taint(TAINT_CPU_OUT_OF_SPEC, LOCKDEP_STILL_OK);
return ret;
}
static DEVICE_ATTR_WO(reload);
#endif
static ssize_t version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -651,7 +568,6 @@ static ssize_t pf_show(struct device *dev,
return sprintf(buf, "0x%x\n", uci->cpu_sig.pf);
}
static DEVICE_ATTR_WO(reload);
static DEVICE_ATTR(version, 0444, version_show, NULL);
static DEVICE_ATTR(processor_flags, 0444, pf_show, NULL);
@@ -804,7 +720,9 @@ static int mc_cpu_down_prep(unsigned int cpu)
}
static struct attribute *cpu_root_microcode_attrs[] = {
#ifdef CONFIG_MICROCODE_LATE_LOADING
&dev_attr_reload.attr,
#endif
NULL
};
@@ -838,10 +756,7 @@ static int __init microcode_init(void)
cpus_read_lock();
mutex_lock(&microcode_mutex);
error = subsys_interface_register(&mc_cpu_interface);
if (!error)
perf_check_microcode();
mutex_unlock(&microcode_mutex);
cpus_read_unlock();
@@ -856,10 +771,6 @@ static int __init microcode_init(void)
goto out_driver;
}
error = microcode_dev_init();
if (error)
goto out_ucode_group;
register_syscore_ops(&mc_syscore_ops);
cpuhp_setup_state_nocalls(CPUHP_AP_MICROCODE_LOADER, "x86/microcode:starting",
mc_cpu_starting, NULL);
@@ -870,10 +781,6 @@ static int __init microcode_init(void)
return 0;
out_ucode_group:
sysfs_remove_group(&cpu_subsys.dev_root->kobj,
&cpu_root_microcode_group);
out_driver:
cpus_read_lock();
mutex_lock(&microcode_mutex);
arch/x86/kernel/cpu/sgx/encl.c
+103 -2
View File
@@ -152,7 +152,7 @@ static int __sgx_encl_eldu(struct sgx_encl_page *encl_page,
page_pcmd_off = sgx_encl_get_backing_page_pcmd_offset(encl, page_index);
ret = sgx_encl_get_backing(encl, page_index, &b);
ret = sgx_encl_lookup_backing(encl, page_index, &b);
if (ret)
return ret;
@@ -718,7 +718,7 @@ static struct page *sgx_encl_get_backing_page(struct sgx_encl *encl,
* 0 on success,
* -errno otherwise.
*/
int sgx_encl_get_backing(struct sgx_encl *encl, unsigned long page_index,
static int sgx_encl_get_backing(struct sgx_encl *encl, unsigned long page_index,
struct sgx_backing *backing)
{
pgoff_t page_pcmd_off = sgx_encl_get_backing_page_pcmd_offset(encl, page_index);
@@ -743,6 +743,107 @@ int sgx_encl_get_backing(struct sgx_encl *encl, unsigned long page_index,
return 0;
}
/*
* When called from ksgxd, returns the mem_cgroup of a struct mm stored
* in the enclave's mm_list. When not called from ksgxd, just returns
* the mem_cgroup of the current task.
*/
static struct mem_cgroup *sgx_encl_get_mem_cgroup(struct sgx_encl *encl)
{
struct mem_cgroup *memcg = NULL;
struct sgx_encl_mm *encl_mm;
int idx;
/*
* If called from normal task context, return the mem_cgroup
* of the current task's mm. The remainder of the handling is for
* ksgxd.
*/
if (!current_is_ksgxd())
return get_mem_cgroup_from_mm(current->mm);
/*
* Search the enclave's mm_list to find an mm associated with
* this enclave to charge the allocation to.
*/
idx = srcu_read_lock(&encl->srcu);
list_for_each_entry_rcu(encl_mm, &encl->mm_list, list) {
if (!mmget_not_zero(encl_mm->mm))
continue;
memcg = get_mem_cgroup_from_mm(encl_mm->mm);
mmput_async(encl_mm->mm);
break;
}
srcu_read_unlock(&encl->srcu, idx);
/*
* In the rare case that there isn't an mm associated with
* the enclave, set memcg to the current active mem_cgroup.
* This will be the root mem_cgroup if there is no active
* mem_cgroup.
*/
if (!memcg)
return get_mem_cgroup_from_mm(NULL);
return memcg;
}
/**
* sgx_encl_alloc_backing() - allocate a new backing storage page
* @encl: an enclave pointer
* @page_index: enclave page index
* @backing: data for accessing backing storage for the page
*
* When called from ksgxd, sets the active memcg from one of the
* mms in the enclave's mm_list prior to any backing page allocation,
* in order to ensure that shmem page allocations are charged to the
* enclave.
*
* Return:
* 0 on success,
* -errno otherwise.
*/
int sgx_encl_alloc_backing(struct sgx_encl *encl, unsigned long page_index,
struct sgx_backing *backing)
{
struct mem_cgroup *encl_memcg = sgx_encl_get_mem_cgroup(encl);
struct mem_cgroup *memcg = set_active_memcg(encl_memcg);
int ret;
ret = sgx_encl_get_backing(encl, page_index, backing);
set_active_memcg(memcg);
mem_cgroup_put(encl_memcg);
return ret;
}
/**
* sgx_encl_lookup_backing() - retrieve an existing backing storage page
* @encl: an enclave pointer
* @page_index: enclave page index
* @backing: data for accessing backing storage for the page
*
* Retrieve a backing page for loading data back into an EPC page with ELDU.
* It is the caller's responsibility to ensure that it is appropriate to use
* sgx_encl_lookup_backing() rather than sgx_encl_alloc_backing(). If lookup is
* not used correctly, this will cause an allocation which is not accounted for.
*
* Return:
* 0 on success,
* -errno otherwise.
*/
int sgx_encl_lookup_backing(struct sgx_encl *encl, unsigned long page_index,
struct sgx_backing *backing)
{
return sgx_encl_get_backing(encl, page_index, backing);
}
/**
* sgx_encl_put_backing() - Unpin the backing storage
* @backing: data for accessing backing storage for the page
arch/x86/kernel/cpu/sgx/encl.h
+5 -2
View File
@@ -103,10 +103,13 @@ static inline int sgx_encl_find(struct mm_struct *mm, unsigned long addr,
int sgx_encl_may_map(struct sgx_encl *encl, unsigned long start,
unsigned long end, unsigned long vm_flags);
bool current_is_ksgxd(void);
void sgx_encl_release(struct kref *ref);
int sgx_encl_mm_add(struct sgx_encl *encl, struct mm_struct *mm);
int sgx_encl_get_backing(struct sgx_encl *encl, unsigned long page_index,
struct sgx_backing *backing);
int sgx_encl_lookup_backing(struct sgx_encl *encl, unsigned long page_index,
struct sgx_backing *backing);
int sgx_encl_alloc_backing(struct sgx_encl *encl, unsigned long page_index,
struct sgx_backing *backing);
void sgx_encl_put_backing(struct sgx_backing *backing);
int sgx_encl_test_and_clear_young(struct mm_struct *mm,
struct sgx_encl_page *page);
arch/x86/kernel/cpu/sgx/main.c
+7 -2
View File
@@ -313,7 +313,7 @@ static void sgx_reclaimer_write(struct sgx_epc_page *epc_page,
sgx_encl_put_backing(backing);
if (!encl->secs_child_cnt && test_bit(SGX_ENCL_INITIALIZED, &encl->flags)) {
ret = sgx_encl_get_backing(encl, PFN_DOWN(encl->size),
ret = sgx_encl_alloc_backing(encl, PFN_DOWN(encl->size),
&secs_backing);
if (ret)
goto out;
@@ -384,7 +384,7 @@ static void sgx_reclaim_pages(void)
page_index = PFN_DOWN(encl_page->desc - encl_page->encl->base);
mutex_lock(&encl_page->encl->lock);
ret = sgx_encl_get_backing(encl_page->encl, page_index, &backing[i]);
ret = sgx_encl_alloc_backing(encl_page->encl, page_index, &backing[i]);
if (ret) {
mutex_unlock(&encl_page->encl->lock);
goto skip;
@@ -475,6 +475,11 @@ static bool __init sgx_page_reclaimer_init(void)
return true;
}
bool current_is_ksgxd(void)
{
return current == ksgxd_tsk;
}
static struct sgx_epc_page *__sgx_alloc_epc_page_from_node(int nid)
{
struct sgx_numa_node *node = &sgx_numa_nodes[nid];
arch/x86/kernel/machine_kexec_64.c
+9 -3
View File
@@ -376,9 +376,6 @@ void machine_kexec(struct kimage *image)
#ifdef CONFIG_KEXEC_FILE
void *arch_kexec_kernel_image_load(struct kimage *image)
{
vfree(image->elf_headers);
image->elf_headers = NULL;
if (!image->fops || !image->fops->load)
return ERR_PTR(-ENOEXEC);
@@ -514,6 +511,15 @@ overflow:
(int)ELF64_R_TYPE(rel[i].r_info), value);
return -ENOEXEC;
}
int arch_kimage_file_post_load_cleanup(struct kimage *image)
{
vfree(image->elf_headers);
image->elf_headers = NULL;
image->elf_headers_sz = 0;
return kexec_image_post_load_cleanup_default(image);
}
#endif /* CONFIG_KEXEC_FILE */
static int
arch/x86/kernel/setup.c
+3 -3
View File
@@ -903,18 +903,18 @@ void __init setup_arch(char **cmdline_p)
#ifdef CONFIG_CMDLINE_BOOL
#ifdef CONFIG_CMDLINE_OVERRIDE
strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
strscpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
#else
if (builtin_cmdline[0]) {
/* append boot loader cmdline to builtin */
strlcat(builtin_cmdline, " ", COMMAND_LINE_SIZE);
strlcat(builtin_cmdline, boot_command_line, COMMAND_LINE_SIZE);
strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
strscpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
}
#endif
#endif
strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
strscpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
*cmdline_p = command_line;
/*
arch/x86/kvm/vmx/vmx.c
+1 -1
View File
@@ -6219,7 +6219,7 @@ static noinstr void vmx_l1d_flush(struct kvm_vcpu *vcpu)
int size = PAGE_SIZE << L1D_CACHE_ORDER;
/*
* This code is only executed when the the flush mode is 'cond' or
* This code is only executed when the flush mode is 'cond' or
* 'always'
*/
if (static_branch_likely(&vmx_l1d_flush_cond)) {
arch/x86/kvm/x86.c
+1 -1
View File
@@ -11937,7 +11937,7 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
if (current->mm == kvm->mm) {
/*
* Free memory regions allocated on behalf of userspace,
* unless the the memory map has changed due to process exit
* unless the memory map has changed due to process exit
* or fd copying.
*/
mutex_lock(&kvm->slots_lock);
arch/x86/mm/init_64.c
+4 -4
View File
@@ -1240,8 +1240,8 @@ remove_pagetable(unsigned long start, unsigned long end, bool direct,
void __ref vmemmap_free(unsigned long start, unsigned long end,
struct vmem_altmap *altmap)
{
VM_BUG_ON(!IS_ALIGNED(start, PAGE_SIZE));
VM_BUG_ON(!IS_ALIGNED(end, PAGE_SIZE));
VM_BUG_ON(!PAGE_ALIGNED(start));
VM_BUG_ON(!PAGE_ALIGNED(end));
remove_pagetable(start, end, false, altmap);
}
@@ -1605,8 +1605,8 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node,
{
int err;
VM_BUG_ON(!IS_ALIGNED(start, PAGE_SIZE));
VM_BUG_ON(!IS_ALIGNED(end, PAGE_SIZE));
VM_BUG_ON(!PAGE_ALIGNED(start));
VM_BUG_ON(!PAGE_ALIGNED(end));
if (end - start < PAGES_PER_SECTION * sizeof(struct page))
err = vmemmap_populate_basepages(start, end, node, NULL);
arch/x86/platform/efi/efi_thunk_64.S
+1 -1
View File
@@ -8,7 +8,7 @@
* The below thunking functions are only used after ExitBootServices()
* has been called. This simplifies things considerably as compared with
* the early EFI thunking because we can leave all the kernel state
* intact (GDT, IDT, etc) and simply invoke the the 32-bit EFI runtime
* intact (GDT, IDT, etc) and simply invoke the 32-bit EFI runtime
* services from __KERNEL32_CS. This means we can continue to service
* interrupts across an EFI mixed mode call.
*
drivers/clocksource/Kconfig
+1 -1
View File
@@ -80,7 +80,7 @@ config IXP4XX_TIMER
bool "Intel XScale IXP4xx timer driver" if COMPILE_TEST
depends on HAS_IOMEM
select CLKSRC_MMIO
select TIMER_OF if OF
select TIMER_OF
help
Enables support for the Intel XScale IXP4xx SoC timer.
drivers/clocksource/bcm_kona_timer.c
+2 -12
View File
@@ -1,15 +1,5 @@
/*
* Copyright (C) 2012 Broadcom Corporation
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
// SPDX-License-Identifier: GPL-2.0
// Copyright (C) 2012 Broadcom Corporation
#include <linux/init.h>
#include <linux/irq.h>
drivers/clocksource/jcore-pit.c
+1 -4
View File
@@ -1,11 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/*
* J-Core SoC PIT/clocksource driver
*
* Copyright (C) 2015-2016 Smart Energy Instruments, Inc.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/kernel.h>
drivers/clocksource/mips-gic-timer.c
+2 -7
View File
@@ -1,10 +1,5 @@
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
*/
// SPDX-License-Identifier: GPL-2.0
// Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
#define pr_fmt(fmt) "mips-gic-timer: " fmt
drivers/clocksource/timer-armada-370-xp.c
+1 -4
View File
@@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Marvell Armada 370/XP SoC timer handling.
*
@@ -7,10 +8,6 @@
* Gregory CLEMENT <gregory.clement@free-electrons.com>
* Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*
* Timer 0 is used as free-running clocksource, while timer 1 is
* used as clock_event_device.
*
drivers/clocksource/timer-digicolor.c
+1 -4
View File
@@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Conexant Digicolor timer driver
*
@@ -11,10 +12,6 @@
* Copyright (C) 2013 Maxime Ripard
*
* Maxime Ripard <maxime.ripard@free-electrons.com>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
/*
drivers/clocksource/timer-ixp4xx.c
-25
View File
@@ -19,8 +19,6 @@
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/platform_device.h>
/* Goes away with OF conversion */
#include <linux/platform_data/timer-ixp4xx.h>
/*
* Constants to make it easy to access Timer Control/Status registers
@@ -263,28 +261,6 @@ static struct platform_driver ixp4xx_timer_driver = {
};
builtin_platform_driver(ixp4xx_timer_driver);
/**
* ixp4xx_timer_setup() - Timer setup function to be called from boardfiles
* @timerbase: physical base of timer block
* @timer_irq: Linux IRQ number for the timer
* @timer_freq: Fixed frequency of the timer
*/
void __init ixp4xx_timer_setup(resource_size_t timerbase,
int timer_irq,
unsigned int timer_freq)
{
void __iomem *base;
base = ioremap(timerbase, 0x100);
if (!base) {
pr_crit("IXP4xx: can't remap timer\n");
return;
}
ixp4xx_timer_register(base, timer_irq, timer_freq);
}
EXPORT_SYMBOL_GPL(ixp4xx_timer_setup);
#ifdef CONFIG_OF
static __init int ixp4xx_of_timer_init(struct device_node *np)
{
void __iomem *base;
@@ -315,4 +291,3 @@ out_unmap:
return ret;
}
TIMER_OF_DECLARE(ixp4xx, "intel,ixp4xx-timer", ixp4xx_of_timer_init);
#endif
drivers/clocksource/timer-lpc32xx.c
+1 -5
View File
@@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Clocksource driver for NXP LPC32xx/18xx/43xx timer
*
@@ -6,11 +7,6 @@
* Based on:
* time-efm32 Copyright (C) 2013 Pengutronix
* mach-lpc32xx/timer.c Copyright (C) 2009 - 2010 NXP Semiconductors
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*
*/
#define pr_fmt(fmt) "%s: " fmt, __func__
drivers/clocksource/timer-orion.c
+1 -4
View File
@@ -1,12 +1,9 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Marvell Orion SoC timer handling.
*
* Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*
* Timer 0 is used as free-running clocksource, while timer 1 is
* used as clock_event_device.
*/
drivers/clocksource/timer-oxnas-rps.c
+1 -1
View File
@@ -236,7 +236,7 @@ static int __init oxnas_rps_timer_init(struct device_node *np)
}
rps->irq = irq_of_parse_and_map(np, 0);
if (rps->irq < 0) {
if (!rps->irq) {
ret = -EINVAL;
goto err_iomap;
}
drivers/clocksource/timer-pistachio.c
+1 -4
View File
@@ -1,11 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Pistachio clocksource based on general-purpose timers
*
* Copyright (C) 2015 Imagination Technologies
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#define pr_fmt(fmt) "%s: " fmt, __func__
drivers/clocksource/timer-riscv.c
+1 -1
View File
@@ -34,7 +34,7 @@ static int riscv_clock_next_event(unsigned long delta,
static unsigned int riscv_clock_event_irq;
static DEFINE_PER_CPU(struct clock_event_device, riscv_clock_event) = {
.name = "riscv_timer_clockevent",
.features = CLOCK_EVT_FEAT_ONESHOT,
.features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_C3STOP,
.rating = 100,
.set_next_event = riscv_clock_next_event,
};
drivers/clocksource/timer-sp804.c
+5 -5
View File
@@ -259,6 +259,11 @@ static int __init sp804_of_init(struct device_node *np, struct sp804_timer *time
struct clk *clk1, *clk2;
const char *name = of_get_property(np, "compatible", NULL);
if (initialized) {
pr_debug("%pOF: skipping further SP804 timer device\n", np);
return 0;
}
base = of_iomap(np, 0);
if (!base)
return -ENXIO;
@@ -270,11 +275,6 @@ static int __init sp804_of_init(struct device_node *np, struct sp804_timer *time
writel(0, timer1_base + timer->ctrl);
writel(0, timer2_base + timer->ctrl);
if (initialized || !of_device_is_available(np)) {
ret = -EINVAL;
goto err;
}
clk1 = of_clk_get(np, 0);
if (IS_ERR(clk1))
clk1 = NULL;
drivers/clocksource/timer-sun4i.c
+1 -4
View File
@@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Allwinner A1X SoCs timer handling.
*
@@ -8,10 +9,6 @@
* Based on code from
* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
* Benn Huang <benn@allwinnertech.com>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#include <linux/clk.h>
drivers/clocksource/timer-sun5i.c
+1 -4
View File
@@ -1,13 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Allwinner SoCs hstimer driver.
*
* Copyright (C) 2013 Maxime Ripard
*
* Maxime Ripard <maxime.ripard@free-electrons.com>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#include <linux/clk.h>
drivers/clocksource/timer-ti-dm.c
+1 -2
View File
@@ -828,8 +828,7 @@ static int omap_dm_timer_probe(struct platform_device *pdev)
cpu_pm_register_notifier(&timer->nb);
}
if (pdata)
timer->errata = pdata->timer_errata;
timer->errata = pdata->timer_errata;
timer->pdev = pdev;
include/linux/context_tracking_state.h
+4 -4
View File
@@ -46,10 +46,10 @@ static __always_inline bool context_tracking_in_user(void)
return __this_cpu_read(context_tracking.state) == CONTEXT_USER;
}
#else
static inline bool context_tracking_in_user(void) { return false; }
static inline bool context_tracking_enabled(void) { return false; }
static inline bool context_tracking_enabled_cpu(int cpu) { return false; }
static inline bool context_tracking_enabled_this_cpu(void) { return false; }
static __always_inline bool context_tracking_in_user(void) { return false; }
static __always_inline bool context_tracking_enabled(void) { return false; }
static __always_inline bool context_tracking_enabled_cpu(int cpu) { return false; }
static __always_inline bool context_tracking_enabled_this_cpu(void) { return false; }
#endif /* CONFIG_CONTEXT_TRACKING */
#endif
include/linux/delayacct.h
+28
View File
@@ -45,9 +45,13 @@ struct task_delay_info {
u64 compact_start;
u64 compact_delay; /* wait for memory compact */
u64 wpcopy_start;
u64 wpcopy_delay; /* wait for write-protect copy */
u32 freepages_count; /* total count of memory reclaim */
u32 thrashing_count; /* total count of thrash waits */
u32 compact_count; /* total count of memory compact */
u32 wpcopy_count; /* total count of write-protect copy */
};
#endif
@@ -75,6 +79,8 @@ extern void __delayacct_swapin_start(void);
extern void __delayacct_swapin_end(void);
extern void __delayacct_compact_start(void);
extern void __delayacct_compact_end(void);
extern void __delayacct_wpcopy_start(void);
extern void __delayacct_wpcopy_end(void);
static inline void delayacct_tsk_init(struct task_struct *tsk)
{
@@ -191,6 +197,24 @@ static inline void delayacct_compact_end(void)
__delayacct_compact_end();
}
static inline void delayacct_wpcopy_start(void)
{
if (!static_branch_unlikely(&delayacct_key))
return;
if (current->delays)
__delayacct_wpcopy_start();
}
static inline void delayacct_wpcopy_end(void)
{
if (!static_branch_unlikely(&delayacct_key))
return;
if (current->delays)
__delayacct_wpcopy_end();
}
#else
static inline void delayacct_init(void)
{}
@@ -225,6 +249,10 @@ static inline void delayacct_compact_start(void)
{}
static inline void delayacct_compact_end(void)
{}
static inline void delayacct_wpcopy_start(void)
{}
static inline void delayacct_wpcopy_end(void)
{}
#endif /* CONFIG_TASK_DELAY_ACCT */
include/linux/jump_label.h
+2 -2
View File
@@ -256,9 +256,9 @@ extern void static_key_disable_cpuslocked(struct static_key *key);
#include <linux/atomic.h>
#include <linux/bug.h>
static inline int static_key_count(struct static_key *key)
static __always_inline int static_key_count(struct static_key *key)
{
return atomic_read(&key->enabled);
return arch_atomic_read(&key->enabled);
}
static __always_inline void jump_label_init(void)
include/linux/platform_data/timer-ixp4xx.h
-11
View File
@@ -1,11 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __TIMER_IXP4XX_H
#define __TIMER_IXP4XX_H
#include <linux/ioport.h>
void __init ixp4xx_timer_setup(resource_size_t timerbase,
int timer_irq,
unsigned int timer_freq);
#endif
include/net/bluetooth/hci_core.h
+7 -10
View File
@@ -155,21 +155,18 @@ struct bdaddr_list_with_irk {
u8 local_irk[16];
};
/* Bitmask of connection flags */
enum hci_conn_flags {
HCI_CONN_FLAG_REMOTE_WAKEUP,
HCI_CONN_FLAG_DEVICE_PRIVACY,
__HCI_CONN_NUM_FLAGS,
HCI_CONN_FLAG_REMOTE_WAKEUP = 1,
HCI_CONN_FLAG_DEVICE_PRIVACY = 2,
};
/* Make sure number of flags doesn't exceed sizeof(current_flags) */
static_assert(__HCI_CONN_NUM_FLAGS < 32);
typedef u8 hci_conn_flags_t;
struct bdaddr_list_with_flags {
struct list_head list;
bdaddr_t bdaddr;
u8 bdaddr_type;
DECLARE_BITMAP(flags, __HCI_CONN_NUM_FLAGS);
hci_conn_flags_t flags;
};
struct bt_uuid {
@@ -576,7 +573,7 @@ struct hci_dev {
struct rfkill *rfkill;
DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
DECLARE_BITMAP(conn_flags, __HCI_CONN_NUM_FLAGS);
hci_conn_flags_t conn_flags;
__s8 adv_tx_power;
__u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
@@ -775,7 +772,7 @@ struct hci_conn_params {
struct hci_conn *conn;
bool explicit_connect;
DECLARE_BITMAP(flags, __HCI_CONN_NUM_FLAGS);
hci_conn_flags_t flags;
u8 privacy_mode;
};
include/uapi/linux/taskstats.h
+5 -1
View File
@@ -34,7 +34,7 @@
*/
#define TASKSTATS_VERSION 12
#define TASKSTATS_VERSION 13
#define TS_COMM_LEN 32 /* should be >= TASK_COMM_LEN
* in linux/sched.h */
@@ -194,6 +194,10 @@ struct taskstats {
__u64 ac_exe_dev; /* program binary device ID */
__u64 ac_exe_inode; /* program binary inode number */
/* v12 end */
/* v13: Delay waiting for write-protect copy */
__u64 wpcopy_count;
__u64 wpcopy_delay_total;
};
kernel/delayacct.c
+16
View File
@@ -177,11 +177,14 @@ int delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk)
d->thrashing_delay_total = (tmp < d->thrashing_delay_total) ? 0 : tmp;
tmp = d->compact_delay_total + tsk->delays->compact_delay;
d->compact_delay_total = (tmp < d->compact_delay_total) ? 0 : tmp;
tmp = d->wpcopy_delay_total + tsk->delays->wpcopy_delay;
d->wpcopy_delay_total = (tmp < d->wpcopy_delay_total) ? 0 : tmp;
d->blkio_count += tsk->delays->blkio_count;
d->swapin_count += tsk->delays->swapin_count;
d->freepages_count += tsk->delays->freepages_count;
d->thrashing_count += tsk->delays->thrashing_count;
d->compact_count += tsk->delays->compact_count;
d->wpcopy_count += tsk->delays->wpcopy_count;
raw_spin_unlock_irqrestore(&tsk->delays->lock, flags);
return 0;
@@ -249,3 +252,16 @@ void __delayacct_compact_end(void)
&current->delays->compact_delay,
&current->delays->compact_count);
}
void __delayacct_wpcopy_start(void)
{
current->delays->wpcopy_start = local_clock();
}
void __delayacct_wpcopy_end(void)
{
delayacct_end(&current->delays->lock,
&current->delays->wpcopy_start,
&current->delays->wpcopy_delay,
&current->delays->wpcopy_count);
}
kernel/events/core.c
-1
View File
@@ -4257,7 +4257,6 @@ static void perf_event_remove_on_exec(int ctxn)
{
struct perf_event_context *ctx, *clone_ctx = NULL;
struct perf_event *event, *next;
LIST_HEAD(free_list);
unsigned long flags;
bool modified = false;
kernel/sched/autogroup.c
+1 -1
View File
@@ -36,6 +36,7 @@ void __init autogroup_init(struct task_struct *init_task)
kref_init(&autogroup_default.kref);
init_rwsem(&autogroup_default.lock);
init_task->signal->autogroup = &autogroup_default;
sched_autogroup_sysctl_init();
}
void autogroup_free(struct task_group *tg)
@@ -219,7 +220,6 @@ void sched_autogroup_exit(struct signal_struct *sig)
static int __init setup_autogroup(char *str)
{
sysctl_sched_autogroup_enabled = 0;
sched_autogroup_sysctl_init();
return 1;
}
mm/hugetlb.c
+8
View File
@@ -32,6 +32,7 @@
#include <linux/cma.h>
#include <linux/migrate.h>
#include <linux/nospec.h>
#include <linux/delayacct.h>
#include <asm/page.h>
#include <asm/pgalloc.h>
@@ -5230,6 +5231,8 @@ static vm_fault_t hugetlb_wp(struct mm_struct *mm, struct vm_area_struct *vma,
pte = huge_ptep_get(ptep);
old_page = pte_page(pte);
delayacct_wpcopy_start();
retry_avoidcopy:
/*
* If no-one else is actually using this page, we're the exclusive
@@ -5240,6 +5243,8 @@ retry_avoidcopy:
page_move_anon_rmap(old_page, vma);
if (likely(!unshare))
set_huge_ptep_writable(vma, haddr, ptep);
delayacct_wpcopy_end();
return 0;
}
VM_BUG_ON_PAGE(PageAnon(old_page) && PageAnonExclusive(old_page),
@@ -5309,6 +5314,7 @@ retry_avoidcopy:
* race occurs while re-acquiring page table
* lock, and our job is done.
*/
delayacct_wpcopy_end();
return 0;
}
@@ -5367,6 +5373,8 @@ out_release_old:
put_page(old_page);
spin_lock(ptl); /* Caller expects lock to be held */
delayacct_wpcopy_end();
return ret;
}
mm/hugetlb_vmemmap.c
+1 -1
View File
@@ -33,7 +33,7 @@ DEFINE_STATIC_KEY_MAYBE(CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON,
EXPORT_SYMBOL(hugetlb_optimize_vmemmap_key);
static enum vmemmap_optimize_mode vmemmap_optimize_mode =
IS_ENABLED(CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON);
IS_ENABLED(CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON);
static void vmemmap_optimize_mode_switch(enum vmemmap_optimize_mode to)
{
mm/memory.c
+8
View File
@@ -3091,6 +3091,8 @@ static vm_fault_t wp_page_copy(struct vm_fault *vmf)
int page_copied = 0;
struct mmu_notifier_range range;
delayacct_wpcopy_start();
if (unlikely(anon_vma_prepare(vma)))
goto oom;
@@ -3115,6 +3117,8 @@ static vm_fault_t wp_page_copy(struct vm_fault *vmf)
put_page(new_page);
if (old_page)
put_page(old_page);
delayacct_wpcopy_end();
return 0;
}
}
@@ -3221,12 +3225,16 @@ static vm_fault_t wp_page_copy(struct vm_fault *vmf)
free_swap_cache(old_page);
put_page(old_page);
}
delayacct_wpcopy_end();
return (page_copied && !unshare) ? VM_FAULT_WRITE : 0;
oom_free_new:
put_page(new_page);
oom:
if (old_page)
put_page(old_page);
delayacct_wpcopy_end();
return VM_FAULT_OOM;
}
mm/memremap.c
+1 -1
View File
@@ -214,7 +214,7 @@ static int pagemap_range(struct dev_pagemap *pgmap, struct mhp_params *params,
if (!mhp_range_allowed(range->start, range_len(range), !is_private)) {
error = -EINVAL;
goto err_pfn_remap;
goto err_kasan;
}
mem_hotplug_begin();
mm/oom_kill.c
+29 -29
View File
@@ -56,35 +56,6 @@ static int sysctl_panic_on_oom;
static int sysctl_oom_kill_allocating_task;
static int sysctl_oom_dump_tasks = 1;
#ifdef CONFIG_SYSCTL
static struct ctl_table vm_oom_kill_table[] = {
{
.procname = "panic_on_oom",
.data = &sysctl_panic_on_oom,
.maxlen = sizeof(sysctl_panic_on_oom),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = SYSCTL_ZERO,
.extra2 = SYSCTL_TWO,
},
{
.procname = "oom_kill_allocating_task",
.data = &sysctl_oom_kill_allocating_task,
.maxlen = sizeof(sysctl_oom_kill_allocating_task),
.mode = 0644,
.proc_handler = proc_dointvec,
},
{
.procname = "oom_dump_tasks",
.data = &sysctl_oom_dump_tasks,
.maxlen = sizeof(sysctl_oom_dump_tasks),
.mode = 0644,
.proc_handler = proc_dointvec,
},
{}
};
#endif
/*
* Serializes oom killer invocations (out_of_memory()) from all contexts to
* prevent from over eager oom killing (e.g. when the oom killer is invoked
@@ -729,6 +700,35 @@ static void queue_oom_reaper(struct task_struct *tsk)
add_timer(&tsk->oom_reaper_timer);
}
#ifdef CONFIG_SYSCTL
static struct ctl_table vm_oom_kill_table[] = {
{
.procname = "panic_on_oom",
.data = &sysctl_panic_on_oom,
.maxlen = sizeof(sysctl_panic_on_oom),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = SYSCTL_ZERO,
.extra2 = SYSCTL_TWO,
},
{
.procname = "oom_kill_allocating_task",
.data = &sysctl_oom_kill_allocating_task,
.maxlen = sizeof(sysctl_oom_kill_allocating_task),
.mode = 0644,
.proc_handler = proc_dointvec,
},
{
.procname = "oom_dump_tasks",
.data = &sysctl_oom_dump_tasks,
.maxlen = sizeof(sysctl_oom_dump_tasks),
.mode = 0644,
.proc_handler = proc_dointvec,
},
{}
};
#endif
static int __init oom_init(void)
{
oom_reaper_th = kthread_run(oom_reaper, NULL, "oom_reaper");
mm/page_isolation.c
+1 -1
View File
@@ -385,9 +385,9 @@ static int isolate_single_pageblock(unsigned long boundary_pfn, int flags,
* above do the rest. If migration is not possible, just fail.
*/
if (PageCompound(page)) {
unsigned long nr_pages = compound_nr(page);
struct page *head = compound_head(page);
unsigned long head_pfn = page_to_pfn(head);
unsigned long nr_pages = compound_nr(head);
if (head_pfn + nr_pages <= boundary_pfn) {
pfn = head_pfn + nr_pages;
net/bluetooth/hci_core.c
+2 -2
View File
@@ -2153,7 +2153,7 @@ int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
bacpy(&entry->bdaddr, bdaddr);
entry->bdaddr_type = type;
bitmap_from_u64(entry->flags, flags);
entry->flags = flags;
list_add(&entry->list, list);
@@ -2634,7 +2634,7 @@ int hci_register_dev(struct hci_dev *hdev)
* callback.
*/
if (hdev->wakeup)
set_bit(HCI_CONN_FLAG_REMOTE_WAKEUP, hdev->conn_flags);
hdev->conn_flags |= HCI_CONN_FLAG_REMOTE_WAKEUP;
hci_sock_dev_event(hdev, HCI_DEV_REG);
hci_dev_hold(hdev);
net/bluetooth/hci_request.c
+1 -1
View File
@@ -482,7 +482,7 @@ static int add_to_accept_list(struct hci_request *req,
/* During suspend, only wakeable devices can be in accept list */
if (hdev->suspended &&
!test_bit(HCI_CONN_FLAG_REMOTE_WAKEUP, params->flags))
!(params->flags & HCI_CONN_FLAG_REMOTE_WAKEUP))
return 0;
*num_entries += 1;
net/bluetooth/hci_sync.c
+3 -3
View File
@@ -1637,7 +1637,7 @@ static int hci_le_set_privacy_mode_sync(struct hci_dev *hdev,
* indicates that LL Privacy has been enabled and
* HCI_OP_LE_SET_PRIVACY_MODE is supported.
*/
if (!test_bit(HCI_CONN_FLAG_DEVICE_PRIVACY, params->flags))
if (!(params->flags & HCI_CONN_FLAG_DEVICE_PRIVACY))
return 0;
irk = hci_find_irk_by_addr(hdev, &params->addr, params->addr_type);
@@ -1666,7 +1666,7 @@ static int hci_le_add_accept_list_sync(struct hci_dev *hdev,
/* During suspend, only wakeable devices can be in acceptlist */
if (hdev->suspended &&
!test_bit(HCI_CONN_FLAG_REMOTE_WAKEUP, params->flags))
!(params->flags & HCI_CONN_FLAG_REMOTE_WAKEUP))
return 0;
/* Select filter policy to accept all advertising */
@@ -4888,7 +4888,7 @@ static int hci_update_event_filter_sync(struct hci_dev *hdev)
hci_clear_event_filter_sync(hdev);
list_for_each_entry(b, &hdev->accept_list, list) {
if (!test_bit(HCI_CONN_FLAG_REMOTE_WAKEUP, b->flags))
if (!(b->flags & HCI_CONN_FLAG_REMOTE_WAKEUP))
continue;
bt_dev_dbg(hdev, "Adding event filters for %pMR", &b->bdaddr);
net/bluetooth/mgmt.c
+14 -23
View File
@@ -4013,10 +4013,11 @@ static int exp_ll_privacy_feature_changed(bool enabled, struct hci_dev *hdev,
memcpy(ev.uuid, rpa_resolution_uuid, 16);
ev.flags = cpu_to_le32((enabled ? BIT(0) : 0) | BIT(1));
// Do we need to be atomic with the conn_flags?
if (enabled && privacy_mode_capable(hdev))
set_bit(HCI_CONN_FLAG_DEVICE_PRIVACY, hdev->conn_flags);
hdev->conn_flags |= HCI_CONN_FLAG_DEVICE_PRIVACY;
else
clear_bit(HCI_CONN_FLAG_DEVICE_PRIVACY, hdev->conn_flags);
hdev->conn_flags &= ~HCI_CONN_FLAG_DEVICE_PRIVACY;
return mgmt_limited_event(MGMT_EV_EXP_FEATURE_CHANGED, hdev,
&ev, sizeof(ev),
@@ -4435,8 +4436,7 @@ static int get_device_flags(struct sock *sk, struct hci_dev *hdev, void *data,
hci_dev_lock(hdev);
bitmap_to_arr32(&supported_flags, hdev->conn_flags,
__HCI_CONN_NUM_FLAGS);
supported_flags = hdev->conn_flags;
memset(&rp, 0, sizeof(rp));
@@ -4447,8 +4447,7 @@ static int get_device_flags(struct sock *sk, struct hci_dev *hdev, void *data,
if (!br_params)
goto done;
bitmap_to_arr32(&current_flags, br_params->flags,
__HCI_CONN_NUM_FLAGS);
current_flags = br_params->flags;
} else {
params = hci_conn_params_lookup(hdev, &cp->addr.bdaddr,
le_addr_type(cp->addr.type));
@@ -4456,8 +4455,7 @@ static int get_device_flags(struct sock *sk, struct hci_dev *hdev, void *data,
if (!params)
goto done;
bitmap_to_arr32(&current_flags, params->flags,
__HCI_CONN_NUM_FLAGS);
current_flags = params->flags;
}
bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
@@ -4502,8 +4500,8 @@ static int set_device_flags(struct sock *sk, struct hci_dev *hdev, void *data,
&cp->addr.bdaddr, cp->addr.type,
__le32_to_cpu(current_flags));
bitmap_to_arr32(&supported_flags, hdev->conn_flags,
__HCI_CONN_NUM_FLAGS);
// We should take hci_dev_lock() early, I think.. conn_flags can change
supported_flags = hdev->conn_flags;
if ((supported_flags | current_flags) != supported_flags) {
bt_dev_warn(hdev, "Bad flag given (0x%x) vs supported (0x%0x)",
@@ -4519,7 +4517,7 @@ static int set_device_flags(struct sock *sk, struct hci_dev *hdev, void *data,
cp->addr.type);
if (br_params) {
bitmap_from_u64(br_params->flags, current_flags);
br_params->flags = current_flags;
status = MGMT_STATUS_SUCCESS;
} else {
bt_dev_warn(hdev, "No such BR/EDR device %pMR (0x%x)",
@@ -4529,15 +4527,11 @@ static int set_device_flags(struct sock *sk, struct hci_dev *hdev, void *data,
params = hci_conn_params_lookup(hdev, &cp->addr.bdaddr,
le_addr_type(cp->addr.type));
if (params) {
DECLARE_BITMAP(flags, __HCI_CONN_NUM_FLAGS);
bitmap_from_u64(flags, current_flags);
/* Devices using RPAs can only be programmed in the
* acceptlist LL Privacy has been enable otherwise they
* cannot mark HCI_CONN_FLAG_REMOTE_WAKEUP.
*/
if (test_bit(HCI_CONN_FLAG_REMOTE_WAKEUP, flags) &&
if ((current_flags & HCI_CONN_FLAG_REMOTE_WAKEUP) &&
!use_ll_privacy(hdev) &&
hci_find_irk_by_addr(hdev, &params->addr,
params->addr_type)) {
@@ -4546,14 +4540,13 @@ static int set_device_flags(struct sock *sk, struct hci_dev *hdev, void *data,
goto unlock;
}
bitmap_from_u64(params->flags, current_flags);
params->flags = current_flags;
status = MGMT_STATUS_SUCCESS;
/* Update passive scan if HCI_CONN_FLAG_DEVICE_PRIVACY
* has been set.
*/
if (test_bit(HCI_CONN_FLAG_DEVICE_PRIVACY,
params->flags))
if (params->flags & HCI_CONN_FLAG_DEVICE_PRIVACY)
hci_update_passive_scan(hdev);
} else {
bt_dev_warn(hdev, "No such LE device %pMR (0x%x)",
@@ -7154,8 +7147,7 @@ static int add_device(struct sock *sk, struct hci_dev *hdev,
params = hci_conn_params_lookup(hdev, &cp->addr.bdaddr,
addr_type);
if (params)
bitmap_to_arr32(&current_flags, params->flags,
__HCI_CONN_NUM_FLAGS);
current_flags = params->flags;
}
err = hci_cmd_sync_queue(hdev, add_device_sync, NULL, NULL);
@@ -7164,8 +7156,7 @@ static int add_device(struct sock *sk, struct hci_dev *hdev,
added:
device_added(sk, hdev, &cp->addr.bdaddr, cp->addr.type, cp->action);
bitmap_to_arr32(&supported_flags, hdev->conn_flags,
__HCI_CONN_NUM_FLAGS);
supported_flags = hdev->conn_flags;
device_flags_changed(NULL, hdev, &cp->addr.bdaddr, cp->addr.type,
supported_flags, current_flags);
scripts/Makefile.lib
+1 -1
View File
@@ -241,7 +241,7 @@ objtool_args = \
$(if $(CONFIG_SLS), --sls) \
$(if $(CONFIG_STACK_VALIDATION), --stackval) \
$(if $(CONFIG_HAVE_STATIC_CALL_INLINE), --static-call) \
--uaccess \
$(if $(CONFIG_HAVE_UACCESS_VALIDATION), --uaccess) \
$(if $(delay-objtool), --link) \
$(if $(part-of-module), --module) \
$(if $(CONFIG_GCOV_KERNEL), --no-unreachable)
tools/accounting/getdelays.c
+7 -1
View File
@@ -207,6 +207,8 @@ static void print_delayacct(struct taskstats *t)
"THRASHING%12s%15s%15s\n"
" %15llu%15llu%15llums\n"
"COMPACT %12s%15s%15s\n"
" %15llu%15llu%15llums\n"
"WPCOPY %12s%15s%15s\n"
" %15llu%15llu%15llums\n",
"count", "real total", "virtual total",
"delay total", "delay average",
@@ -234,7 +236,11 @@ static void print_delayacct(struct taskstats *t)
"count", "delay total", "delay average",
(unsigned long long)t->compact_count,
(unsigned long long)t->compact_delay_total,
average_ms(t->compact_delay_total, t->compact_count));
average_ms(t->compact_delay_total, t->compact_count),
"count", "delay total", "delay average",
(unsigned long long)t->wpcopy_count,
(unsigned long long)t->wpcopy_delay_total,
average_ms(t->wpcopy_delay_total, t->wpcopy_count));
}
static void task_context_switch_counts(struct taskstats *t)
tools/objtool/check.c
+3 -1
View File
@@ -185,7 +185,9 @@ static bool __dead_end_function(struct objtool_file *file, struct symbol *func,
"do_group_exit",
"stop_this_cpu",
"__invalid_creds",
"cpu_startup_entry",
"cpu_startup_entry",
"__ubsan_handle_builtin_unreachable",
"ex_handler_msr_mce",
};
if (!func)