diff options
| -rw-r--r-- | mk/kernel-ver.mk | 4 | ||||
| -rw-r--r-- | target/config/Config.in.kernelversion | 2 | ||||
| -rw-r--r-- | target/linux/patches/4.1.39/cleankernel.patch (renamed from target/linux/patches/4.1.35/cleankernel.patch) | 0 | ||||
| -rw-r--r-- | target/linux/patches/4.1.39/cris-header.patch (renamed from target/linux/patches/4.1.35/cris-header.patch) | 0 | ||||
| -rw-r--r-- | target/linux/patches/4.1.39/initramfs-nosizelimit.patch (renamed from target/linux/patches/4.1.35/initramfs-nosizelimit.patch) | 0 | ||||
| -rw-r--r-- | target/linux/patches/4.1.39/j2-core.patch (renamed from target/linux/patches/4.1.35/j2-core.patch) | 0 | ||||
| -rw-r--r-- | target/linux/patches/4.1.39/mtd-rootfs.patch (renamed from target/linux/patches/4.1.35/mtd-rootfs.patch) | 0 | ||||
| -rw-r--r-- | target/linux/patches/4.1.39/patch-realtime (renamed from target/linux/patches/4.1.35/patch-realtime) | 8656 | ||||
| -rw-r--r-- | target/linux/patches/4.1.39/regmap-default-on.patch (renamed from target/linux/patches/4.1.35/regmap-default-on.patch) | 0 | ||||
| -rw-r--r-- | target/linux/patches/4.1.39/remove-warn.patch (renamed from target/linux/patches/4.1.35/remove-warn.patch) | 0 | ||||
| -rw-r--r-- | target/linux/patches/4.1.39/startup.patch (renamed from target/linux/patches/4.1.35/startup.patch) | 0 | ||||
| -rw-r--r-- | target/linux/patches/4.1.39/use-gawk.patch (renamed from target/linux/patches/4.1.35/use-gawk.patch) | 0 | ||||
| -rw-r--r-- | target/linux/patches/4.1.39/use-libgcc-for-sh.patch (renamed from target/linux/patches/4.1.35/use-libgcc-for-sh.patch) | 0 |
13 files changed, 4537 insertions, 4125 deletions
diff --git a/mk/kernel-ver.mk b/mk/kernel-ver.mk index 297f7adb7..a08f15dc0 100644 --- a/mk/kernel-ver.mk +++ b/mk/kernel-ver.mk @@ -34,10 +34,10 @@ KERNEL_VERSION:= $(KERNEL_FILE_VER)-$(KERNEL_RELEASE) KERNEL_HASH:= ce4b701e571b1053878acfebfcba400b872e5ae8cef1c26dc6d26e9793cd1dec endif ifeq ($(ADK_TARGET_KERNEL_VERSION_4_1),y) -KERNEL_FILE_VER:= 4.1.35 +KERNEL_FILE_VER:= 4.1.39 KERNEL_RELEASE:= 1 KERNEL_VERSION:= $(KERNEL_FILE_VER)-$(KERNEL_RELEASE) -KERNEL_HASH:= 544af0400818a4b5ee7bca192c52e801faf7eeb22eed128c89aeb490344cc04a +KERNEL_HASH:= a8e82c8b1580ac4f8b176c714206498adedec9591eda48b895f6c61116d58854 endif ifeq ($(ADK_TARGET_KERNEL_VERSION_3_18),y) KERNEL_FILE_VER:= 3.18.44 diff --git a/target/config/Config.in.kernelversion b/target/config/Config.in.kernelversion index a6d9cfd4f..3955ebf25 100644 --- a/target/config/Config.in.kernelversion +++ b/target/config/Config.in.kernelversion @@ -51,7 +51,7 @@ config ADK_TARGET_KERNEL_VERSION_4_4 depends on !ADK_TARGET_SYSTEM_NUMATO_MIMASV2 config ADK_TARGET_KERNEL_VERSION_4_1 - bool "4.1.35" + bool "4.1.39" depends on !ADK_TARGET_ARCH_ARC depends on !ADK_TARGET_ARCH_BFIN depends on !ADK_TARGET_ARCH_H8300 diff --git a/target/linux/patches/4.1.35/cleankernel.patch b/target/linux/patches/4.1.39/cleankernel.patch index 59693f426..59693f426 100644 --- a/target/linux/patches/4.1.35/cleankernel.patch +++ b/target/linux/patches/4.1.39/cleankernel.patch diff --git a/target/linux/patches/4.1.35/cris-header.patch b/target/linux/patches/4.1.39/cris-header.patch index 2b5a88461..2b5a88461 100644 --- a/target/linux/patches/4.1.35/cris-header.patch +++ b/target/linux/patches/4.1.39/cris-header.patch diff --git a/target/linux/patches/4.1.35/initramfs-nosizelimit.patch b/target/linux/patches/4.1.39/initramfs-nosizelimit.patch index 40d2f6bd8..40d2f6bd8 100644 --- a/target/linux/patches/4.1.35/initramfs-nosizelimit.patch +++ b/target/linux/patches/4.1.39/initramfs-nosizelimit.patch diff --git a/target/linux/patches/4.1.35/j2-core.patch b/target/linux/patches/4.1.39/j2-core.patch index 38136df2c..38136df2c 100644 --- a/target/linux/patches/4.1.35/j2-core.patch +++ b/target/linux/patches/4.1.39/j2-core.patch diff --git a/target/linux/patches/4.1.35/mtd-rootfs.patch b/target/linux/patches/4.1.39/mtd-rootfs.patch index 5f6d82b5c..5f6d82b5c 100644 --- a/target/linux/patches/4.1.35/mtd-rootfs.patch +++ b/target/linux/patches/4.1.39/mtd-rootfs.patch diff --git a/target/linux/patches/4.1.35/patch-realtime b/target/linux/patches/4.1.39/patch-realtime index 94d6fe355..52f9bd3d2 100644 --- a/target/linux/patches/4.1.35/patch-realtime +++ b/target/linux/patches/4.1.39/patch-realtime @@ -1,313 +1,6 @@ -diff --git a/Documentation/hwlat_detector.txt b/Documentation/hwlat_detector.txt -new file mode 100644 -index 000000000000..cb61516483d3 ---- /dev/null -+++ b/Documentation/hwlat_detector.txt -@@ -0,0 +1,64 @@ -+Introduction: -+------------- -+ -+The module hwlat_detector is a special purpose kernel module that is used to -+detect large system latencies induced by the behavior of certain underlying -+hardware or firmware, independent of Linux itself. The code was developed -+originally to detect SMIs (System Management Interrupts) on x86 systems, -+however there is nothing x86 specific about this patchset. It was -+originally written for use by the "RT" patch since the Real Time -+kernel is highly latency sensitive. -+ -+SMIs are usually not serviced by the Linux kernel, which typically does not -+even know that they are occuring. SMIs are instead are set up by BIOS code -+and are serviced by BIOS code, usually for "critical" events such as -+management of thermal sensors and fans. Sometimes though, SMIs are used for -+other tasks and those tasks can spend an inordinate amount of time in the -+handler (sometimes measured in milliseconds). Obviously this is a problem if -+you are trying to keep event service latencies down in the microsecond range. -+ -+The hardware latency detector works by hogging all of the cpus for configurable -+amounts of time (by calling stop_machine()), polling the CPU Time Stamp Counter -+for some period, then looking for gaps in the TSC data. Any gap indicates a -+time when the polling was interrupted and since the machine is stopped and -+interrupts turned off the only thing that could do that would be an SMI. -+ -+Note that the SMI detector should *NEVER* be used in a production environment. -+It is intended to be run manually to determine if the hardware platform has a -+problem with long system firmware service routines. -+ -+Usage: -+------ -+ -+Loading the module hwlat_detector passing the parameter "enabled=1" (or by -+setting the "enable" entry in "hwlat_detector" debugfs toggled on) is the only -+step required to start the hwlat_detector. It is possible to redefine the -+threshold in microseconds (us) above which latency spikes will be taken -+into account (parameter "threshold="). -+ -+Example: -+ -+ # modprobe hwlat_detector enabled=1 threshold=100 -+ -+After the module is loaded, it creates a directory named "hwlat_detector" under -+the debugfs mountpoint, "/debug/hwlat_detector" for this text. It is necessary -+to have debugfs mounted, which might be on /sys/debug on your system. -+ -+The /debug/hwlat_detector interface contains the following files: -+ -+count - number of latency spikes observed since last reset -+enable - a global enable/disable toggle (0/1), resets count -+max - maximum hardware latency actually observed (usecs) -+sample - a pipe from which to read current raw sample data -+ in the format <timestamp> <latency observed usecs> -+ (can be opened O_NONBLOCK for a single sample) -+threshold - minimum latency value to be considered (usecs) -+width - time period to sample with CPUs held (usecs) -+ must be less than the total window size (enforced) -+window - total period of sampling, width being inside (usecs) -+ -+By default we will set width to 500,000 and window to 1,000,000, meaning that -+we will sample every 1,000,000 usecs (1s) for 500,000 usecs (0.5s). If we -+observe any latencies that exceed the threshold (initially 100 usecs), -+then we write to a global sample ring buffer of 8K samples, which is -+consumed by reading from the "sample" (pipe) debugfs file interface. -diff --git a/Documentation/sysrq.txt b/Documentation/sysrq.txt -index 0e307c94809a..6964d0f80ae7 100644 ---- a/Documentation/sysrq.txt -+++ b/Documentation/sysrq.txt -@@ -59,10 +59,17 @@ On PowerPC - Press 'ALT - Print Screen (or F13) - <command key>, - On other - If you know of the key combos for other architectures, please - let me know so I can add them to this section. - --On all - write a character to /proc/sysrq-trigger. e.g.: -- -+On all - write a character to /proc/sysrq-trigger, e.g.: - echo t > /proc/sysrq-trigger - -+On all - Enable network SysRq by writing a cookie to icmp_echo_sysrq, e.g. -+ echo 0x01020304 >/proc/sys/net/ipv4/icmp_echo_sysrq -+ Send an ICMP echo request with this pattern plus the particular -+ SysRq command key. Example: -+ # ping -c1 -s57 -p0102030468 -+ will trigger the SysRq-H (help) command. -+ -+ - * What are the 'command' keys? - ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - 'b' - Will immediately reboot the system without syncing or unmounting -diff --git a/Documentation/trace/histograms.txt b/Documentation/trace/histograms.txt -new file mode 100644 -index 000000000000..6f2aeabf7faa ---- /dev/null -+++ b/Documentation/trace/histograms.txt -@@ -0,0 +1,186 @@ -+ Using the Linux Kernel Latency Histograms -+ -+ -+This document gives a short explanation how to enable, configure and use -+latency histograms. Latency histograms are primarily relevant in the -+context of real-time enabled kernels (CONFIG_PREEMPT/CONFIG_PREEMPT_RT) -+and are used in the quality management of the Linux real-time -+capabilities. -+ -+ -+* Purpose of latency histograms -+ -+A latency histogram continuously accumulates the frequencies of latency -+data. There are two types of histograms -+- potential sources of latencies -+- effective latencies -+ -+ -+* Potential sources of latencies -+ -+Potential sources of latencies are code segments where interrupts, -+preemption or both are disabled (aka critical sections). To create -+histograms of potential sources of latency, the kernel stores the time -+stamp at the start of a critical section, determines the time elapsed -+when the end of the section is reached, and increments the frequency -+counter of that latency value - irrespective of whether any concurrently -+running process is affected by latency or not. -+- Configuration items (in the Kernel hacking/Tracers submenu) -+ CONFIG_INTERRUPT_OFF_LATENCY -+ CONFIG_PREEMPT_OFF_LATENCY -+ -+ -+* Effective latencies -+ -+Effective latencies are actually occuring during wakeup of a process. To -+determine effective latencies, the kernel stores the time stamp when a -+process is scheduled to be woken up, and determines the duration of the -+wakeup time shortly before control is passed over to this process. Note -+that the apparent latency in user space may be somewhat longer, since the -+process may be interrupted after control is passed over to it but before -+the execution in user space takes place. Simply measuring the interval -+between enqueuing and wakeup may also not appropriate in cases when a -+process is scheduled as a result of a timer expiration. The timer may have -+missed its deadline, e.g. due to disabled interrupts, but this latency -+would not be registered. Therefore, the offsets of missed timers are -+recorded in a separate histogram. If both wakeup latency and missed timer -+offsets are configured and enabled, a third histogram may be enabled that -+records the overall latency as a sum of the timer latency, if any, and the -+wakeup latency. This histogram is called "timerandwakeup". -+- Configuration items (in the Kernel hacking/Tracers submenu) -+ CONFIG_WAKEUP_LATENCY -+ CONFIG_MISSED_TIMER_OFSETS -+ -+ -+* Usage -+ -+The interface to the administration of the latency histograms is located -+in the debugfs file system. To mount it, either enter -+ -+mount -t sysfs nodev /sys -+mount -t debugfs nodev /sys/kernel/debug -+ -+from shell command line level, or add -+ -+nodev /sys sysfs defaults 0 0 -+nodev /sys/kernel/debug debugfs defaults 0 0 -+ -+to the file /etc/fstab. All latency histogram related files are then -+available in the directory /sys/kernel/debug/tracing/latency_hist. A -+particular histogram type is enabled by writing non-zero to the related -+variable in the /sys/kernel/debug/tracing/latency_hist/enable directory. -+Select "preemptirqsoff" for the histograms of potential sources of -+latencies and "wakeup" for histograms of effective latencies etc. The -+histogram data - one per CPU - are available in the files -+ -+/sys/kernel/debug/tracing/latency_hist/preemptoff/CPUx -+/sys/kernel/debug/tracing/latency_hist/irqsoff/CPUx -+/sys/kernel/debug/tracing/latency_hist/preemptirqsoff/CPUx -+/sys/kernel/debug/tracing/latency_hist/wakeup/CPUx -+/sys/kernel/debug/tracing/latency_hist/wakeup/sharedprio/CPUx -+/sys/kernel/debug/tracing/latency_hist/missed_timer_offsets/CPUx -+/sys/kernel/debug/tracing/latency_hist/timerandwakeup/CPUx -+ -+The histograms are reset by writing non-zero to the file "reset" in a -+particular latency directory. To reset all latency data, use -+ -+#!/bin/sh -+ -+TRACINGDIR=/sys/kernel/debug/tracing -+HISTDIR=$TRACINGDIR/latency_hist -+ -+if test -d $HISTDIR -+then -+ cd $HISTDIR -+ for i in `find . | grep /reset$` -+ do -+ echo 1 >$i -+ done -+fi -+ -+ -+* Data format -+ -+Latency data are stored with a resolution of one microsecond. The -+maximum latency is 10,240 microseconds. The data are only valid, if the -+overflow register is empty. Every output line contains the latency in -+microseconds in the first row and the number of samples in the second -+row. To display only lines with a positive latency count, use, for -+example, -+ -+grep -v " 0$" /sys/kernel/debug/tracing/latency_hist/preemptoff/CPU0 -+ -+#Minimum latency: 0 microseconds. -+#Average latency: 0 microseconds. -+#Maximum latency: 25 microseconds. -+#Total samples: 3104770694 -+#There are 0 samples greater or equal than 10240 microseconds -+#usecs samples -+ 0 2984486876 -+ 1 49843506 -+ 2 58219047 -+ 3 5348126 -+ 4 2187960 -+ 5 3388262 -+ 6 959289 -+ 7 208294 -+ 8 40420 -+ 9 4485 -+ 10 14918 -+ 11 18340 -+ 12 25052 -+ 13 19455 -+ 14 5602 -+ 15 969 -+ 16 47 -+ 17 18 -+ 18 14 -+ 19 1 -+ 20 3 -+ 21 2 -+ 22 5 -+ 23 2 -+ 25 1 -+ -+ -+* Wakeup latency of a selected process -+ -+To only collect wakeup latency data of a particular process, write the -+PID of the requested process to -+ -+/sys/kernel/debug/tracing/latency_hist/wakeup/pid -+ -+PIDs are not considered, if this variable is set to 0. -+ -+ -+* Details of the process with the highest wakeup latency so far -+ -+Selected data of the process that suffered from the highest wakeup -+latency that occurred in a particular CPU are available in the file -+ -+/sys/kernel/debug/tracing/latency_hist/wakeup/max_latency-CPUx. -+ -+In addition, other relevant system data at the time when the -+latency occurred are given. -+ -+The format of the data is (all in one line): -+<PID> <Priority> <Latency> (<Timeroffset>) <Command> \ -+<- <PID> <Priority> <Command> <Timestamp> -+ -+The value of <Timeroffset> is only relevant in the combined timer -+and wakeup latency recording. In the wakeup recording, it is -+always 0, in the missed_timer_offsets recording, it is the same -+as <Latency>. -+ -+When retrospectively searching for the origin of a latency and -+tracing was not enabled, it may be helpful to know the name and -+some basic data of the task that (finally) was switching to the -+late real-tlme task. In addition to the victim's data, also the -+data of the possible culprit are therefore displayed after the -+"<-" symbol. -+ -+Finally, the timestamp of the time when the latency occurred -+in <seconds>.<microseconds> after the most recent system boot -+is provided. -+ -+These data are also reset when the wakeup histogram is reset. -diff --git a/arch/Kconfig b/arch/Kconfig -index a65eafb24997..78d3ed24484a 100644 ---- a/arch/Kconfig -+++ b/arch/Kconfig -@@ -6,6 +6,7 @@ config OPROFILE - tristate "OProfile system profiling" - depends on PROFILING - depends on HAVE_OPROFILE -+ depends on !PREEMPT_RT_FULL - select RING_BUFFER - select RING_BUFFER_ALLOW_SWAP - help -@@ -49,6 +50,7 @@ config KPROBES - config JUMP_LABEL - bool "Optimize very unlikely/likely branches" - depends on HAVE_ARCH_JUMP_LABEL -+ depends on (!INTERRUPT_OFF_HIST && !PREEMPT_OFF_HIST && !WAKEUP_LATENCY_HIST && !MISSED_TIMER_OFFSETS_HIST) - help - This option enables a transparent branch optimization that - makes certain almost-always-true or almost-always-false branch -diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c -index 9d0ac091a52a..4a905bd667e2 100644 ---- a/arch/alpha/mm/fault.c -+++ b/arch/alpha/mm/fault.c +diff -Nur linux-4.1.39.orig/arch/alpha/mm/fault.c linux-4.1.39/arch/alpha/mm/fault.c +--- linux-4.1.39.orig/arch/alpha/mm/fault.c 2017-03-13 21:04:36.000000000 +0100 ++++ linux-4.1.39/arch/alpha/mm/fault.c 2017-04-18 17:56:30.549394649 +0200 @@ -23,8 +23,7 @@ #include <linux/smp.h> #include <linux/interrupt.h> @@ -318,7 +11,7 @@ index 9d0ac091a52a..4a905bd667e2 100644 extern void die_if_kernel(char *,struct pt_regs *,long, unsigned long *); -@@ -107,7 +106,7 @@ do_page_fault(unsigned long address, unsigned long mmcsr, +@@ -107,7 +106,7 @@ /* If we're in an interrupt context, or have no user context, we must not take the fault. */ @@ -327,11 +20,10 @@ index 9d0ac091a52a..4a905bd667e2 100644 goto no_context; #ifdef CONFIG_ALPHA_LARGE_VMALLOC -diff --git a/arch/arc/include/asm/futex.h b/arch/arc/include/asm/futex.h -index 4dc64ddebece..05b5aaf5b0f9 100644 ---- a/arch/arc/include/asm/futex.h -+++ b/arch/arc/include/asm/futex.h -@@ -53,7 +53,7 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr) +diff -Nur linux-4.1.39.orig/arch/arc/include/asm/futex.h linux-4.1.39/arch/arc/include/asm/futex.h +--- linux-4.1.39.orig/arch/arc/include/asm/futex.h 2017-03-13 21:04:36.000000000 +0100 ++++ linux-4.1.39/arch/arc/include/asm/futex.h 2017-04-18 17:56:30.549394649 +0200 +@@ -53,7 +53,7 @@ if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int))) return -EFAULT; @@ -340,7 +32,7 @@ index 4dc64ddebece..05b5aaf5b0f9 100644 switch (op) { case FUTEX_OP_SET: -@@ -75,7 +75,7 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr) +@@ -75,7 +75,7 @@ ret = -ENOSYS; } @@ -349,7 +41,7 @@ index 4dc64ddebece..05b5aaf5b0f9 100644 if (!ret) { switch (cmp) { -@@ -104,7 +104,7 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr) +@@ -104,7 +104,7 @@ return ret; } @@ -358,7 +50,7 @@ index 4dc64ddebece..05b5aaf5b0f9 100644 * Notes: * -Best-Effort: Exchg happens only if compare succeeds. * If compare fails, returns; leaving retry/looping to upper layers -@@ -121,7 +121,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, u32 oldval, +@@ -121,7 +121,7 @@ if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int))) return -EFAULT; @@ -367,7 +59,7 @@ index 4dc64ddebece..05b5aaf5b0f9 100644 /* TBD : can use llock/scond */ __asm__ __volatile__( -@@ -142,7 +142,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, u32 oldval, +@@ -142,7 +142,7 @@ : "r"(oldval), "r"(newval), "r"(uaddr), "ir"(-EFAULT) : "cc", "memory"); @@ -376,11 +68,10 @@ index 4dc64ddebece..05b5aaf5b0f9 100644 *uval = val; return val; -diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c -index 6a2e006cbcce..d948e4e9d89c 100644 ---- a/arch/arc/mm/fault.c -+++ b/arch/arc/mm/fault.c -@@ -86,7 +86,7 @@ void do_page_fault(unsigned long address, struct pt_regs *regs) +diff -Nur linux-4.1.39.orig/arch/arc/mm/fault.c linux-4.1.39/arch/arc/mm/fault.c +--- linux-4.1.39.orig/arch/arc/mm/fault.c 2017-03-13 21:04:36.000000000 +0100 ++++ linux-4.1.39/arch/arc/mm/fault.c 2017-04-18 17:56:30.549394649 +0200 +@@ -86,7 +86,7 @@ * If we're in an interrupt or have no user * context, we must not take the fault.. */ @@ -389,32 +80,10 @@ index 6a2e006cbcce..d948e4e9d89c 100644 goto no_context; if (user_mode(regs)) -diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig -index 19f4cc634b0e..e16a259177d4 100644 ---- a/arch/arm/Kconfig -+++ b/arch/arm/Kconfig -@@ -31,7 +31,7 @@ config ARM - select HARDIRQS_SW_RESEND - select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT) - select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6 -- select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL -+ select HAVE_ARCH_JUMP_LABEL if (!XIP_KERNEL && !PREEMPT_RT_BASE) - select HAVE_ARCH_KGDB - select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT) - select HAVE_ARCH_TRACEHOOK -@@ -66,6 +66,7 @@ config ARM - select HAVE_PERF_EVENTS - select HAVE_PERF_REGS - select HAVE_PERF_USER_STACK_DUMP -+ select HAVE_PREEMPT_LAZY - select HAVE_RCU_TABLE_FREE if (SMP && ARM_LPAE) - select HAVE_REGS_AND_STACK_ACCESS_API - select HAVE_SYSCALL_TRACEPOINTS -diff --git a/arch/arm/include/asm/cmpxchg.h b/arch/arm/include/asm/cmpxchg.h -index abb2c3769b01..2386e9745ba4 100644 ---- a/arch/arm/include/asm/cmpxchg.h -+++ b/arch/arm/include/asm/cmpxchg.h -@@ -129,6 +129,8 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size +diff -Nur linux-4.1.39.orig/arch/arm/include/asm/cmpxchg.h linux-4.1.39/arch/arm/include/asm/cmpxchg.h +--- linux-4.1.39.orig/arch/arm/include/asm/cmpxchg.h 2017-03-13 21:04:36.000000000 +0100 ++++ linux-4.1.39/arch/arm/include/asm/cmpxchg.h 2017-04-18 17:56:30.549394649 +0200 +@@ -129,6 +129,8 @@ #else /* min ARCH >= ARMv6 */ @@ -423,11 +92,10 @@ index abb2c3769b01..2386e9745ba4 100644 extern void __bad_cmpxchg(volatile void *ptr, int size); /* -diff --git a/arch/arm/include/asm/futex.h b/arch/arm/include/asm/futex.h -index 4e78065a16aa..5eed82809d82 100644 ---- a/arch/arm/include/asm/futex.h -+++ b/arch/arm/include/asm/futex.h -@@ -93,6 +93,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, +diff -Nur linux-4.1.39.orig/arch/arm/include/asm/futex.h linux-4.1.39/arch/arm/include/asm/futex.h +--- linux-4.1.39.orig/arch/arm/include/asm/futex.h 2017-03-13 21:04:36.000000000 +0100 ++++ linux-4.1.39/arch/arm/include/asm/futex.h 2017-04-18 17:56:30.549394649 +0200 +@@ -93,6 +93,7 @@ if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32))) return -EFAULT; @@ -435,7 +103,7 @@ index 4e78065a16aa..5eed82809d82 100644 __asm__ __volatile__("@futex_atomic_cmpxchg_inatomic\n" "1: " TUSER(ldr) " %1, [%4]\n" " teq %1, %2\n" -@@ -104,6 +105,8 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, +@@ -104,6 +105,8 @@ : "cc", "memory"); *uval = val; @@ -444,7 +112,7 @@ index 4e78065a16aa..5eed82809d82 100644 return ret; } -@@ -124,7 +127,10 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr) +@@ -124,7 +127,10 @@ if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32))) return -EFAULT; @@ -456,7 +124,7 @@ index 4e78065a16aa..5eed82809d82 100644 switch (op) { case FUTEX_OP_SET: -@@ -146,7 +152,10 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr) +@@ -146,7 +152,10 @@ ret = -ENOSYS; } @@ -468,10 +136,9 @@ index 4e78065a16aa..5eed82809d82 100644 if (!ret) { switch (cmp) { -diff --git a/arch/arm/include/asm/switch_to.h b/arch/arm/include/asm/switch_to.h -index c99e259469f7..f3e3d800c407 100644 ---- a/arch/arm/include/asm/switch_to.h -+++ b/arch/arm/include/asm/switch_to.h +diff -Nur linux-4.1.39.orig/arch/arm/include/asm/switch_to.h linux-4.1.39/arch/arm/include/asm/switch_to.h +--- linux-4.1.39.orig/arch/arm/include/asm/switch_to.h 2017-03-13 21:04:36.000000000 +0100 ++++ linux-4.1.39/arch/arm/include/asm/switch_to.h 2017-04-18 17:56:30.549394649 +0200 @@ -3,6 +3,13 @@ #include <linux/thread_info.h> @@ -486,7 +153,7 @@ index c99e259469f7..f3e3d800c407 100644 /* * For v7 SMP cores running a preemptible kernel we may be pre-empted * during a TLB maintenance operation, so execute an inner-shareable dsb -@@ -22,6 +29,7 @@ extern struct task_struct *__switch_to(struct task_struct *, struct thread_info +@@ -22,6 +29,7 @@ #define switch_to(prev,next,last) \ do { \ @@ -494,11 +161,10 @@ index c99e259469f7..f3e3d800c407 100644 last = __switch_to(prev,task_thread_info(prev), task_thread_info(next)); \ } while (0) -diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h -index bd32eded3e50..b5a616376f60 100644 ---- a/arch/arm/include/asm/thread_info.h -+++ b/arch/arm/include/asm/thread_info.h -@@ -50,6 +50,7 @@ struct cpu_context_save { +diff -Nur linux-4.1.39.orig/arch/arm/include/asm/thread_info.h linux-4.1.39/arch/arm/include/asm/thread_info.h +--- linux-4.1.39.orig/arch/arm/include/asm/thread_info.h 2017-03-13 21:04:36.000000000 +0100 ++++ linux-4.1.39/arch/arm/include/asm/thread_info.h 2017-04-18 17:56:30.549394649 +0200 +@@ -50,6 +50,7 @@ struct thread_info { unsigned long flags; /* low level flags */ int preempt_count; /* 0 => preemptable, <0 => bug */ @@ -506,7 +172,7 @@ index bd32eded3e50..b5a616376f60 100644 mm_segment_t addr_limit; /* address limit */ struct task_struct *task; /* main task structure */ __u32 cpu; /* cpu */ -@@ -147,6 +148,7 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *, +@@ -147,6 +148,7 @@ #define TIF_SIGPENDING 0 #define TIF_NEED_RESCHED 1 #define TIF_NOTIFY_RESUME 2 /* callback before returning to user */ @@ -514,7 +180,7 @@ index bd32eded3e50..b5a616376f60 100644 #define TIF_UPROBE 7 #define TIF_SYSCALL_TRACE 8 #define TIF_SYSCALL_AUDIT 9 -@@ -160,6 +162,7 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *, +@@ -160,6 +162,7 @@ #define _TIF_SIGPENDING (1 << TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) #define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) @@ -522,11 +188,30 @@ index bd32eded3e50..b5a616376f60 100644 #define _TIF_UPROBE (1 << TIF_UPROBE) #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) #define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT) -diff --git a/arch/arm/kernel/asm-offsets.c b/arch/arm/kernel/asm-offsets.c -index 871b8267d211..4dbe70de7318 100644 ---- a/arch/arm/kernel/asm-offsets.c -+++ b/arch/arm/kernel/asm-offsets.c -@@ -65,6 +65,7 @@ int main(void) +diff -Nur linux-4.1.39.orig/arch/arm/Kconfig linux-4.1.39/arch/arm/Kconfig +--- linux-4.1.39.orig/arch/arm/Kconfig 2017-03-13 21:04:36.000000000 +0100 ++++ linux-4.1.39/arch/arm/Kconfig 2017-04-18 17:56:30.549394649 +0200 +@@ -31,7 +31,7 @@ + select HARDIRQS_SW_RESEND + select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT) + select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6 +- select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL ++ select HAVE_ARCH_JUMP_LABEL if (!XIP_KERNEL && !PREEMPT_RT_BASE) + select HAVE_ARCH_KGDB + select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT) + select HAVE_ARCH_TRACEHOOK +@@ -66,6 +66,7 @@ + select HAVE_PERF_EVENTS + select HAVE_PERF_REGS + select HAVE_PERF_USER_STACK_DUMP ++ select HAVE_PREEMPT_LAZY + select HAVE_RCU_TABLE_FREE if (SMP && ARM_LPAE) + select HAVE_REGS_AND_STACK_ACCESS_API + select HAVE_SYSCALL_TRACEPOINTS +diff -Nur linux-4.1.39.orig/arch/arm/kernel/asm-offsets.c linux-4.1.39/arch/arm/kernel/asm-offsets.c +--- linux-4.1.39.orig/arch/arm/kernel/asm-offsets.c 2017-03-13 21:04:36.000000000 +0100 ++++ linux-4.1.39/arch/arm/kernel/asm-offsets.c 2017-04-18 17:56:30.549394649 +0200 +@@ -65,6 +65,7 @@ BLANK(); DEFINE(TI_FLAGS, offsetof(struct thread_info, flags)); DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count)); @@ -534,11 +219,10 @@ index 871b8267d211..4dbe70de7318 100644 DEFINE(TI_ADDR_LIMIT, offsetof(struct thread_info, addr_limit)); DEFINE(TI_TASK, offsetof(struct thread_info, task)); DEFINE(TI_CPU, offsetof(struct thread_info, cpu)); -diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S -index 570306c49406..797a13d959b7 100644 ---- a/arch/arm/kernel/entry-armv.S -+++ b/arch/arm/kernel/entry-armv.S -@@ -208,11 +208,18 @@ __irq_svc: +diff -Nur linux-4.1.39.orig/arch/arm/kernel/entry-armv.S linux-4.1.39/arch/arm/kernel/entry-armv.S +--- linux-4.1.39.orig/arch/arm/kernel/entry-armv.S 2017-03-13 21:04:36.000000000 +0100 ++++ linux-4.1.39/arch/arm/kernel/entry-armv.S 2017-04-18 17:56:30.549394649 +0200 +@@ -208,11 +208,18 @@ #ifdef CONFIG_PREEMPT get_thread_info tsk ldr r8, [tsk, #TI_PREEMPT] @ get preempt count @@ -559,7 +243,7 @@ index 570306c49406..797a13d959b7 100644 #endif svc_exit r5, irq = 1 @ return from exception -@@ -227,8 +234,14 @@ svc_preempt: +@@ -227,8 +234,14 @@ 1: bl preempt_schedule_irq @ irq en/disable is done inside ldr r0, [tsk, #TI_FLAGS] @ get new tasks TI_FLAGS tst r0, #_TIF_NEED_RESCHED @@ -575,11 +259,40 @@ index 570306c49406..797a13d959b7 100644 #endif __und_fault: -diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c -index f192a2a41719..649247ac00e6 100644 ---- a/arch/arm/kernel/process.c -+++ b/arch/arm/kernel/process.c -@@ -290,6 +290,30 @@ unsigned long arch_randomize_brk(struct mm_struct *mm) +diff -Nur linux-4.1.39.orig/arch/arm/kernel/patch.c linux-4.1.39/arch/arm/kernel/patch.c +--- linux-4.1.39.orig/arch/arm/kernel/patch.c 2017-03-13 21:04:36.000000000 +0100 ++++ linux-4.1.39/arch/arm/kernel/patch.c 2017-04-18 17:56:30.549394649 +0200 +@@ -15,7 +15,7 @@ + unsigned int insn; + }; + +-static DEFINE_SPINLOCK(patch_lock); ++static DEFINE_RAW_SPINLOCK(patch_lock); + + static void __kprobes *patch_map(void *addr, int fixmap, unsigned long *flags) + __acquires(&patch_lock) +@@ -32,7 +32,7 @@ + return addr; + + if (flags) +- spin_lock_irqsave(&patch_lock, *flags); ++ raw_spin_lock_irqsave(&patch_lock, *flags); + else + __acquire(&patch_lock); + +@@ -47,7 +47,7 @@ + clear_fixmap(fixmap); + + if (flags) +- spin_unlock_irqrestore(&patch_lock, *flags); ++ raw_spin_unlock_irqrestore(&patch_lock, *flags); + else + __release(&patch_lock); + } +diff -Nur linux-4.1.39.orig/arch/arm/kernel/process.c linux-4.1.39/arch/arm/kernel/process.c +--- linux-4.1.39.orig/arch/arm/kernel/process.c 2017-03-13 21:04:36.000000000 +0100 ++++ linux-4.1.39/arch/arm/kernel/process.c 2017-04-18 17:56:30.549394649 +0200 +@@ -290,6 +290,30 @@ } #ifdef CONFIG_MMU @@ -610,11 +323,10 @@ index f192a2a41719..649247ac00e6 100644 #ifdef CONFIG_KUSER_HELPERS /* * The vectors page is always readable from user space for the -diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c -index 586eef26203d..25bd12ef0b36 100644 ---- a/arch/arm/kernel/signal.c -+++ b/arch/arm/kernel/signal.c -@@ -568,7 +568,8 @@ asmlinkage int +diff -Nur linux-4.1.39.orig/arch/arm/kernel/signal.c linux-4.1.39/arch/arm/kernel/signal.c +--- linux-4.1.39.orig/arch/arm/kernel/signal.c 2017-03-13 21:04:36.000000000 +0100 ++++ linux-4.1.39/arch/arm/kernel/signal.c 2017-04-18 17:56:30.549394649 +0200 +@@ -568,7 +568,8 @@ do_work_pending(struct pt_regs *regs, unsigned int thread_flags, int syscall) { do { @@ -624,11 +336,10 @@ index 586eef26203d..25bd12ef0b36 100644 schedule(); } else { if (unlikely(!user_mode(regs))) -diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c -index f11d82527076..e561aef093c7 100644 ---- a/arch/arm/kernel/smp.c -+++ b/arch/arm/kernel/smp.c -@@ -213,8 +213,6 @@ int __cpu_disable(void) +diff -Nur linux-4.1.39.orig/arch/arm/kernel/smp.c linux-4.1.39/arch/arm/kernel/smp.c +--- linux-4.1.39.orig/arch/arm/kernel/smp.c 2017-03-13 21:04:36.000000000 +0100 ++++ linux-4.1.39/arch/arm/kernel/smp.c 2017-04-18 17:56:30.549394649 +0200 +@@ -213,8 +213,6 @@ flush_cache_louis(); local_flush_tlb_all(); @@ -637,7 +348,7 @@ index f11d82527076..e561aef093c7 100644 return 0; } -@@ -230,6 +228,9 @@ void __cpu_die(unsigned int cpu) +@@ -230,6 +228,9 @@ pr_err("CPU%u: cpu didn't die\n", cpu); return; } @@ -647,11 +358,10 @@ index f11d82527076..e561aef093c7 100644 pr_notice("CPU%u: shutdown\n", cpu); /* -diff --git a/arch/arm/kernel/unwind.c b/arch/arm/kernel/unwind.c -index 0bee233fef9a..314cfb232a63 100644 ---- a/arch/arm/kernel/unwind.c -+++ b/arch/arm/kernel/unwind.c -@@ -93,7 +93,7 @@ extern const struct unwind_idx __start_unwind_idx[]; +diff -Nur linux-4.1.39.orig/arch/arm/kernel/unwind.c linux-4.1.39/arch/arm/kernel/unwind.c +--- linux-4.1.39.orig/arch/arm/kernel/unwind.c 2017-03-13 21:04:36.000000000 +0100 ++++ linux-4.1.39/arch/arm/kernel/unwind.c 2017-04-18 17:56:30.549394649 +0200 +@@ -93,7 +93,7 @@ static const struct unwind_idx *__origin_unwind_idx; extern const struct unwind_idx __stop_unwind_idx[]; @@ -660,7 +370,7 @@ index 0bee233fef9a..314cfb232a63 100644 static LIST_HEAD(unwind_tables); /* Convert a prel31 symbol to an absolute address */ -@@ -201,7 +201,7 @@ static const struct unwind_idx *unwind_find_idx(unsigned long addr) +@@ -201,7 +201,7 @@ /* module unwind tables */ struct unwind_table *table; @@ -669,7 +379,7 @@ index 0bee233fef9a..314cfb232a63 100644 list_for_each_entry(table, &unwind_tables, list) { if (addr >= table->begin_addr && addr < table->end_addr) { -@@ -213,7 +213,7 @@ static const struct unwind_idx *unwind_find_idx(unsigned long addr) +@@ -213,7 +213,7 @@ break; } } @@ -678,7 +388,7 @@ index 0bee233fef9a..314cfb232a63 100644 } pr_debug("%s: idx = %p\n", __func__, idx); -@@ -529,9 +529,9 @@ struct unwind_table *unwind_table_add(unsigned long start, unsigned long size, +@@ -529,9 +529,9 @@ tab->begin_addr = text_addr; tab->end_addr = text_addr + text_size; @@ -690,7 +400,7 @@ index 0bee233fef9a..314cfb232a63 100644 return tab; } -@@ -543,9 +543,9 @@ void unwind_table_del(struct unwind_table *tab) +@@ -543,9 +543,9 @@ if (!tab) return; @@ -702,11 +412,10 @@ index 0bee233fef9a..314cfb232a63 100644 kfree(tab); } -diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c -index 87b2663a5564..ce5e58d76cf9 100644 ---- a/arch/arm/kvm/arm.c -+++ b/arch/arm/kvm/arm.c -@@ -473,9 +473,9 @@ bool kvm_arch_intc_initialized(struct kvm *kvm) +diff -Nur linux-4.1.39.orig/arch/arm/kvm/arm.c linux-4.1.39/arch/arm/kvm/arm.c +--- linux-4.1.39.orig/arch/arm/kvm/arm.c 2017-03-13 21:04:36.000000000 +0100 ++++ linux-4.1.39/arch/arm/kvm/arm.c 2017-04-18 17:56:30.549394649 +0200 +@@ -473,9 +473,9 @@ static void vcpu_pause(struct kvm_vcpu *vcpu) { @@ -718,11 +427,10 @@ index 87b2663a5564..ce5e58d76cf9 100644 } static int kvm_vcpu_initialized(struct kvm_vcpu *vcpu) -diff --git a/arch/arm/kvm/psci.c b/arch/arm/kvm/psci.c -index 531e922486b2..e24f0461ea2d 100644 ---- a/arch/arm/kvm/psci.c -+++ b/arch/arm/kvm/psci.c -@@ -68,7 +68,7 @@ static unsigned long kvm_psci_vcpu_on(struct kvm_vcpu *source_vcpu) +diff -Nur linux-4.1.39.orig/arch/arm/kvm/psci.c linux-4.1.39/arch/arm/kvm/psci.c +--- linux-4.1.39.orig/arch/arm/kvm/psci.c 2017-03-13 21:04:36.000000000 +0100 ++++ linux-4.1.39/arch/arm/kvm/psci.c 2017-04-18 17:56:30.549394649 +0200 +@@ -68,7 +68,7 @@ { struct kvm *kvm = source_vcpu->kvm; struct kvm_vcpu *vcpu = NULL; @@ -731,7 +439,7 @@ index 531e922486b2..e24f0461ea2d 100644 unsigned long cpu_id; unsigned long context_id; phys_addr_t target_pc; -@@ -117,7 +117,7 @@ static unsigned long kvm_psci_vcpu_on(struct kvm_vcpu *source_vcpu) +@@ -117,7 +117,7 @@ smp_mb(); /* Make sure the above is visible */ wq = kvm_arch_vcpu_wq(vcpu); @@ -740,10 +448,9 @@ index 531e922486b2..e24f0461ea2d 100644 return PSCI_RET_SUCCESS; } -diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c -index eaf58f88ef5d..8d3cb458a99c 100644 ---- a/arch/arm/mach-at91/at91rm9200.c -+++ b/arch/arm |