Merge branch 'akpm' (patches from Andrew)

Merge more updates from Andrew Morton:

 - the rest of MM

 - various misc things

 - procfs updates

 - lib/ updates

 - checkpatch updates

 - kdump/kexec updates

 - add kvmalloc helpers, use them

 - time helper updates for Y2038 issues. We're almost ready to remove
   current_fs_time() but that awaits a btrfs merge.

 - add tracepoints to DAX

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (114 commits)
  drivers/staging/ccree/ssi_hash.c: fix build with gcc-4.4.4
  selftests/vm: add a test for virtual address range mapping
  dax: add tracepoint to dax_insert_mapping()
  dax: add tracepoint to dax_writeback_one()
  dax: add tracepoints to dax_writeback_mapping_range()
  dax: add tracepoints to dax_load_hole()
  dax: add tracepoints to dax_pfn_mkwrite()
  dax: add tracepoints to dax_iomap_pte_fault()
  mtd: nand: nandsim: convert to memalloc_noreclaim_*()
  treewide: convert PF_MEMALLOC manipulations to new helpers
  mm: introduce memalloc_noreclaim_{save,restore}
  mm: prevent potential recursive reclaim due to clearing PF_MEMALLOC
  mm/huge_memory.c: deposit a pgtable for DAX PMD faults when required
  mm/huge_memory.c: use zap_deposited_table() more
  time: delete CURRENT_TIME_SEC and CURRENT_TIME
  gfs2: replace CURRENT_TIME with current_time
  apparmorfs: replace CURRENT_TIME with current_time()
  lustre: replace CURRENT_TIME macro
  fs: ubifs: replace CURRENT_TIME_SEC with current_time
  fs: ufs: use ktime_get_real_ts64() for birthtime
  ...

28 files changed, 303 insertions, 107 deletions

diff --git a/include/asm-generic/set_memory.h b/include/asm-generic/set_memory.h
new file mode 100644
index 000000000000..83e81f8996b2
--- /dev/null
+++ b/include/asm-generic/set_memory.h
@@ -0,0 +1,12 @@
+#ifndef __ASM_SET_MEMORY_H
+#define __ASM_SET_MEMORY_H
+
+/*
+ * Functions to change memory attributes.
+ */
+int set_memory_ro(unsigned long addr, int numpages);
+int set_memory_rw(unsigned long addr, int numpages);
+int set_memory_x(unsigned long addr, int numpages);
+int set_memory_nx(unsigned long addr, int numpages);
+
+#endif
diff --git a/include/drm/drm_mem_util.h b/include/drm/drm_mem_util.h
index 70d4e221a3ad..d0f6cf2e5324 100644
--- a/include/drm/drm_mem_util.h
+++ b/include/drm/drm_mem_util.h
@@ -37,8 +37,7 @@ static __inline__ void *drm_calloc_large(size_t nmemb, size_t size)
 	if (size * nmemb <= PAGE_SIZE)
 	    return kcalloc(nmemb, size, GFP_KERNEL);
 
-	return __vmalloc(size * nmemb,
-			 GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL);
+	return vzalloc(size * nmemb);
 }
 
 /* Modeled after cairo's malloc_ab, it's like calloc but without the zeroing. */
@@ -50,8 +49,7 @@ static __inline__ void *drm_malloc_ab(size_t nmemb, size_t size)
 	if (size * nmemb <= PAGE_SIZE)
 	    return kmalloc(nmemb * size, GFP_KERNEL);
 
-	return __vmalloc(size * nmemb,
-			 GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL);
+	return vmalloc(size * nmemb);
 }
 
 static __inline__ void *drm_malloc_gfp(size_t nmemb, size_t size, gfp_t gfp)
@@ -69,8 +67,7 @@ static __inline__ void *drm_malloc_gfp(size_t nmemb, size_t size, gfp_t gfp)
 			return ptr;
 	}
 
-	return __vmalloc(size * nmemb,
-			 gfp | __GFP_HIGHMEM, PAGE_KERNEL);
+	return __vmalloc(size * nmemb, gfp, PAGE_KERNEL);
 }
 
 static __inline void drm_free_large(void *ptr)
diff --git a/include/linux/bcma/bcma_driver_pci.h b/include/linux/bcma/bcma_driver_pci.h
index 9657f11d48a7..bca6a5e4ca3d 100644
--- a/include/linux/bcma/bcma_driver_pci.h
+++ b/include/linux/bcma/bcma_driver_pci.h
@@ -80,7 +80,7 @@ struct pci_dev;
 #define  BCMA_CORE_PCI_MDIODATA_DEV_TX		0x1e	/* SERDES TX Dev */
 #define  BCMA_CORE_PCI_MDIODATA_DEV_RX		0x1f	/* SERDES RX Dev */
 #define BCMA_CORE_PCI_PCIEIND_ADDR		0x0130	/* indirect access to the internal register */
-#define BCMA_CORE_PCI_PCIEIND_DATA		0x0134	/* Data to/from the internal regsiter */
+#define BCMA_CORE_PCI_PCIEIND_DATA		0x0134	/* Data to/from the internal register */
 #define BCMA_CORE_PCI_CLKREQENCTRL		0x0138	/*  >= rev 6, Clkreq rdma control */
 #define BCMA_CORE_PCI_PCICFG0			0x0400	/* PCI config space 0 (rev >= 8) */
 #define BCMA_CORE_PCI_PCICFG1			0x0500	/* PCI config space 1 (rev >= 8) */
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 1a675604b17d..2404ad238c0b 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -40,9 +40,9 @@ extern int nr_cpu_ids;
 #ifdef CONFIG_CPUMASK_OFFSTACK
 /* Assuming NR_CPUS is huge, a runtime limit is more efficient.  Also,
  * not all bits may be allocated. */
-#define nr_cpumask_bits	nr_cpu_ids
+#define nr_cpumask_bits	((unsigned int)nr_cpu_ids)
 #else
-#define nr_cpumask_bits	NR_CPUS
+#define nr_cpumask_bits	((unsigned int)NR_CPUS)
 #endif
 
 /*
diff --git a/include/linux/crash_core.h b/include/linux/crash_core.h
new file mode 100644
index 000000000000..541a197ba4a2
--- /dev/null
+++ b/include/linux/crash_core.h
@@ -0,0 +1,69 @@
+#ifndef LINUX_CRASH_CORE_H
+#define LINUX_CRASH_CORE_H
+
+#include <linux/linkage.h>
+#include <linux/elfcore.h>
+#include <linux/elf.h>
+
+#define CRASH_CORE_NOTE_NAME	   "CORE"
+#define CRASH_CORE_NOTE_HEAD_BYTES ALIGN(sizeof(struct elf_note), 4)
+#define CRASH_CORE_NOTE_NAME_BYTES ALIGN(sizeof(CRASH_CORE_NOTE_NAME), 4)
+#define CRASH_CORE_NOTE_DESC_BYTES ALIGN(sizeof(struct elf_prstatus), 4)
+
+#define CRASH_CORE_NOTE_BYTES	   ((CRASH_CORE_NOTE_HEAD_BYTES * 2) +	\
+				     CRASH_CORE_NOTE_NAME_BYTES +	\
+				     CRASH_CORE_NOTE_DESC_BYTES)
+
+#define VMCOREINFO_BYTES	   (4096)
+#define VMCOREINFO_NOTE_NAME	   "VMCOREINFO"
+#define VMCOREINFO_NOTE_NAME_BYTES ALIGN(sizeof(VMCOREINFO_NOTE_NAME), 4)
+#define VMCOREINFO_NOTE_SIZE	   ((CRASH_CORE_NOTE_HEAD_BYTES * 2) +	\
+				     VMCOREINFO_NOTE_NAME_BYTES +	\
+				     VMCOREINFO_BYTES)
+
+typedef u32 note_buf_t[CRASH_CORE_NOTE_BYTES/4];
+
+void crash_save_vmcoreinfo(void);
+void arch_crash_save_vmcoreinfo(void);
+__printf(1, 2)
+void vmcoreinfo_append_str(const char *fmt, ...);
+phys_addr_t paddr_vmcoreinfo_note(void);
+
+#define VMCOREINFO_OSRELEASE(value) \
+	vmcoreinfo_append_str("OSRELEASE=%s\n", value)
+#define VMCOREINFO_PAGESIZE(value) \
+	vmcoreinfo_append_str("PAGESIZE=%ld\n", value)
+#define VMCOREINFO_SYMBOL(name) \
+	vmcoreinfo_append_str("SYMBOL(%s)=%lx\n", #name, (unsigned long)&name)
+#define VMCOREINFO_SIZE(name) \
+	vmcoreinfo_append_str("SIZE(%s)=%lu\n", #name, \
+			      (unsigned long)sizeof(name))
+#define VMCOREINFO_STRUCT_SIZE(name) \
+	vmcoreinfo_append_str("SIZE(%s)=%lu\n", #name, \
+			      (unsigned long)sizeof(struct name))
+#define VMCOREINFO_OFFSET(name, field) \
+	vmcoreinfo_append_str("OFFSET(%s.%s)=%lu\n", #name, #field, \
+			      (unsigned long)offsetof(struct name, field))
+#define VMCOREINFO_LENGTH(name, value) \
+	vmcoreinfo_append_str("LENGTH(%s)=%lu\n", #name, (unsigned long)value)
+#define VMCOREINFO_NUMBER(name) \
+	vmcoreinfo_append_str("NUMBER(%s)=%ld\n", #name, (long)name)
+#define VMCOREINFO_CONFIG(name) \
+	vmcoreinfo_append_str("CONFIG_%s=y\n", #name)
+
+extern u32 vmcoreinfo_note[VMCOREINFO_NOTE_SIZE/4];
+extern size_t vmcoreinfo_size;
+extern size_t vmcoreinfo_max_size;
+
+Elf_Word *append_elf_note(Elf_Word *buf, char *name, unsigned int type,
+			  void *data, size_t data_len);
+void final_note(Elf_Word *buf);
+
+int __init parse_crashkernel(char *cmdline, unsigned long long system_ram,
+		unsigned long long *crash_size, unsigned long long *crash_base);
+int parse_crashkernel_high(char *cmdline, unsigned long long system_ram,
+		unsigned long long *crash_size, unsigned long long *crash_base);
+int parse_crashkernel_low(char *cmdline, unsigned long long system_ram,
+		unsigned long long *crash_size, unsigned long long *crash_base);
+
+#endif /* LINUX_CRASH_CORE_H */
diff --git a/include/linux/elf.h b/include/linux/elf.h
index 20fa8d8ae313..ba069e8f4f78 100644
--- a/include/linux/elf.h
+++ b/include/linux/elf.h
@@ -29,6 +29,7 @@ extern Elf32_Dyn _DYNAMIC [];
 #define elf_note	elf32_note
 #define elf_addr_t	Elf32_Off
 #define Elf_Half	Elf32_Half
+#define Elf_Word	Elf32_Word
 
 #else
 
@@ -39,6 +40,7 @@ extern Elf64_Dyn _DYNAMIC [];
 #define elf_note	elf64_note
 #define elf_addr_t	Elf64_Off
 #define Elf_Half	Elf64_Half
+#define Elf_Word	Elf64_Word
 
 #endif
 
diff --git a/include/linux/filter.h b/include/linux/filter.h
index 9a7786db14fa..56197f82af45 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -19,7 +19,9 @@
 
 #include <net/sch_generic.h>
 
-#include <asm/cacheflush.h>
+#ifdef CONFIG_ARCH_HAS_SET_MEMORY
+#include <asm/set_memory.h>
+#endif
 
 #include <uapi/linux/filter.h>
 #include <uapi/linux/bpf.h>
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 5d62d2c47939..249dad4e8d26 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -250,9 +250,8 @@ enum positive_aop_returns {
 	AOP_TRUNCATED_PAGE	= 0x80001,
 };
 
-#define AOP_FLAG_UNINTERRUPTIBLE	0x0001 /* will not do a short write */
-#define AOP_FLAG_CONT_EXPAND		0x0002 /* called from cont_expand */
-#define AOP_FLAG_NOFS			0x0004 /* used by filesystem to direct
+#define AOP_FLAG_CONT_EXPAND		0x0001 /* called from cont_expand */
+#define AOP_FLAG_NOFS			0x0002 /* used by filesystem to direct
 						* helper code (eg buffer layer)
 						* to clear GFP_FS from alloc */
 
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 6d2a63e4ea52..473f088aabea 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -72,7 +72,7 @@ ftrace_func_t ftrace_ops_get_func(struct ftrace_ops *ops);
  * CONTROL, SAVE_REGS, SAVE_REGS_IF_SUPPORTED, RECURSION_SAFE, STUB and
  * IPMODIFY are a kind of attribute flags which can be set only before
  * registering the ftrace_ops, and can not be modified while registered.
- * Changing those attribute flags after regsitering ftrace_ops will
+ * Changing those attribute flags after registering ftrace_ops will
  * cause unexpected results.
  *
  * ENABLED - set/unset when ftrace_ops is registered/unregistered
diff --git a/include/linux/ipc.h b/include/linux/ipc.h
index 9d84942ae2e5..71fd92d81b26 100644
--- a/include/linux/ipc.h
+++ b/include/linux/ipc.h
@@ -8,8 +8,7 @@
 #define IPCMNI 32768  /* <= MAX_INT limit for ipc arrays (including sysctl changes) */
 
 /* used by in-kernel data structures */
-struct kern_ipc_perm
-{
+struct kern_ipc_perm {
 	spinlock_t	lock;
 	bool		deleted;
 	int		id;
@@ -18,9 +17,9 @@ struct kern_ipc_perm
 	kgid_t		gid;
 	kuid_t		cuid;
 	kgid_t		cgid;
-	umode_t		mode; 
+	umode_t		mode;
 	unsigned long	seq;
 	void		*security;
-};
+} ____cacheline_aligned_in_smp;
 
 #endif /* _LINUX_IPC_H */
diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h
index 624215cebee5..36872fbb815d 100644
--- a/include/linux/jiffies.h
+++ b/include/linux/jiffies.h
@@ -1,6 +1,7 @@
 #ifndef _LINUX_JIFFIES_H
 #define _LINUX_JIFFIES_H
 
+#include <linux/cache.h>
 #include <linux/math64.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
@@ -63,19 +64,13 @@ extern int register_refined_jiffies(long clock_tick_rate);
 /* TICK_USEC is the time between ticks in usec assuming fake USER_HZ */
 #define TICK_USEC ((1000000UL + USER_HZ/2) / USER_HZ)
 
-/* some arch's have a small-data section that can be accessed register-relative
- * but that can only take up to, say, 4-byte variables. jiffies being part of
- * an 8-byte variable may not be correctly accessed unless we force the issue
- */
-#define __jiffy_data  __attribute__((section(".data")))
-
 /*
  * The 64-bit value is not atomic - you MUST NOT read it
  * without sampling the sequence number in jiffies_lock.
  * get_jiffies_64() will do this for you as appropriate.
  */
-extern u64 __jiffy_data jiffies_64;
-extern unsigned long volatile __jiffy_data jiffies;
+extern u64 __cacheline_aligned_in_smp jiffies_64;
+extern unsigned long volatile __cacheline_aligned_in_smp jiffies;
 
 #if (BITS_PER_LONG < 64)
 u64 get_jiffies_64(void);
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index d419d0e51fe5..c9481ebcbc0c 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -14,17 +14,15 @@
 
 #if !defined(__ASSEMBLY__)
 
+#include <linux/crash_core.h>
 #include <asm/io.h>
 
 #include <uapi/linux/kexec.h>
 
 #ifdef CONFIG_KEXEC_CORE
 #include <linux/list.h>
-#include <linux/linkage.h>
 #include <linux/compat.h>
 #include <linux/ioport.h>
-#include <linux/elfcore.h>
-#include <linux/elf.h>
 #include <linux/module.h>
 #include <asm/kexec.h>
 
@@ -62,19 +60,15 @@
 #define KEXEC_CRASH_MEM_ALIGN PAGE_SIZE
 #endif
 
-#define KEXEC_NOTE_HEAD_BYTES ALIGN(sizeof(struct elf_note), 4)
-#define KEXEC_CORE_NOTE_NAME "CORE"
-#define KEXEC_CORE_NOTE_NAME_BYTES ALIGN(sizeof(KEXEC_CORE_NOTE_NAME), 4)
-#define KEXEC_CORE_NOTE_DESC_BYTES ALIGN(sizeof(struct elf_prstatus), 4)
+#define KEXEC_CORE_NOTE_NAME	CRASH_CORE_NOTE_NAME
+
 /*
  * The per-cpu notes area is a list of notes terminated by a "NULL"
  * note header.  For kdump, the code in vmcore.c runs in the context
  * of the second kernel to combine them into one note.
  */
 #ifndef KEXEC_NOTE_BYTES
-#define KEXEC_NOTE_BYTES ( (KEXEC_NOTE_HEAD_BYTES * 2) +		\
-			    KEXEC_CORE_NOTE_NAME_BYTES +		\
-			    KEXEC_CORE_NOTE_DESC_BYTES )
+#define KEXEC_NOTE_BYTES	CRASH_CORE_NOTE_BYTES
 #endif
 
 /*
@@ -256,33 +250,6 @@ extern void crash_kexec(struct pt_regs *);
 int kexec_should_crash(struct task_struct *);
 int kexec_crash_loaded(void);
 void crash_save_cpu(struct pt_regs *regs, int cpu);
-void crash_save_vmcoreinfo(void);
-void arch_crash_save_vmcoreinfo(void);
-__printf(1, 2)
-void vmcoreinfo_append_str(const char *fmt, ...);
-phys_addr_t paddr_vmcoreinfo_note(void);
-
-#define VMCOREINFO_OSRELEASE(value) \
-	vmcoreinfo_append_str("OSRELEASE=%s\n", value)
-#define VMCOREINFO_PAGESIZE(value) \
-	vmcoreinfo_append_str("PAGESIZE=%ld\n", value)
-#define VMCOREINFO_SYMBOL(name) \
-	vmcoreinfo_append_str("SYMBOL(%s)=%lx\n", #name, (unsigned long)&name)
-#define VMCOREINFO_SIZE(name) \
-	vmcoreinfo_append_str("SIZE(%s)=%lu\n", #name, \
-			      (unsigned long)sizeof(name))
-#define VMCOREINFO_STRUCT_SIZE(name) \
-	vmcoreinfo_append_str("SIZE(%s)=%lu\n", #name, \
-			      (unsigned long)sizeof(struct name))
-#define VMCOREINFO_OFFSET(name, field) \
-	vmcoreinfo_append_str("OFFSET(%s.%s)=%lu\n", #name, #field, \
-			      (unsigned long)offsetof(struct name, field))
-#define VMCOREINFO_LENGTH(name, value) \
-	vmcoreinfo_append_str("LENGTH(%s)=%lu\n", #name, (unsigned long)value)
-#define VMCOREINFO_NUMBER(name) \
-	vmcoreinfo_append_str("NUMBER(%s)=%ld\n", #name, (long)name)
-#define VMCOREINFO_CONFIG(name) \
-	vmcoreinfo_append_str("CONFIG_%s=y\n", #name)
 
 extern struct kimage *kexec_image;
 extern struct kimage *kexec_crash_image;
@@ -303,31 +270,15 @@ extern int kexec_load_disabled;
 #define KEXEC_FILE_FLAGS	(KEXEC_FILE_UNLOAD | KEXEC_FILE_ON_CRASH | \
 				 KEXEC_FILE_NO_INITRAMFS)
 
-#define VMCOREINFO_BYTES           (4096)
-#define VMCOREINFO_NOTE_NAME       "VMCOREINFO"
-#define VMCOREINFO_NOTE_NAME_BYTES ALIGN(sizeof(VMCOREINFO_NOTE_NAME), 4)
-#define VMCOREINFO_NOTE_SIZE       (KEXEC_NOTE_HEAD_BYTES*2 + VMCOREINFO_BYTES \
-				    + VMCOREINFO_NOTE_NAME_BYTES)
-
 /* Location of a reserved region to hold the crash kernel.
  */
 extern struct resource crashk_res;
 extern struct resource crashk_low_res;
-typedef u32 note_buf_t[KEXEC_NOTE_BYTES/4];
 extern note_buf_t __percpu *crash_notes;
-extern u32 vmcoreinfo_note[VMCOREINFO_NOTE_SIZE/4];
-extern size_t vmcoreinfo_size;
-extern size_t vmcoreinfo_max_size;
 
 /* flag to track if kexec reboot is in progress */
 extern bool kexec_in_progress;
 
-int __init parse_crashkernel(char *cmdline, unsigned long long system_ram,
-		unsigned long long *crash_size, unsigned long long *crash_base);
-int parse_crashkernel_high(char *cmdline, unsigned long long system_ram,
-		unsigned long long *crash_size, unsigned long long *crash_base);
-int parse_crashkernel_low(char *cmdline, unsigned long long system_ram,
-		unsigned long long *crash_size, unsigned long long *crash_base);
 int crash_shrink_memory(unsigned long new_size);
 size_t crash_get_memory_size(void);
 void crash_free_reserved_phys_range(unsigned long begin, unsigned long end);
diff --git a/include/linux/kref.h b/include/linux/kref.h
index f4156f88f557..29220724bf1c 100644
--- a/include/linux/kref.h
+++ b/include/linux/kref.h
@@ -66,8 +66,6 @@ static inline void kref_get(struct kref *kref)
  */
 static inline int kref_put(struct kref *kref, void (*release)(struct kref *kref))
 {
-	WARN_ON(release == NULL);
-
 	if (refcount_dec_and_test(&kref->refcount)) {
 		release(kref);
 		return 1;
@@ -79,8 +77,6 @@ static inline int kref_put_mutex(struct kref *kref,
 				 void (*release)(struct kref *kref),
 				 struct mutex *lock)
 {
-	WARN_ON(release == NULL);
-
 	if (refcount_dec_and_mutex_lock(&kref->refcount, lock)) {
 		release(kref);
 		return 1;
@@ -92,8 +88,6 @@ static inline int kref_put_lock(struct kref *kref,
 				void (*release)(struct kref *kref),
 				spinlock_t *lock)
 {
-	WARN_ON(release == NULL);
-
 	if (refcount_dec_and_lock(&kref->refcount, lock)) {
 		release(kref);
 		return 1;
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 3727afdf614d..4d629471869b 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -776,8 +776,6 @@ void kvm_arch_check_processor_compat(void *rtn);
 int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu);
 int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu);
 
-void *kvm_kvzalloc(unsigned long size);
-
 #ifndef __KVM_HAVE_ARCH_VM_ALLOC
 static inline struct kvm *kvm_arch_alloc_vm(void)
 {
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 74b765ce48ab..d5bed0875d30 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -108,7 +108,7 @@ enum {
 	MLX4_MFUNC_EQE_MASK     = (MLX4_MFUNC_MAX_EQES - 1)
 };
 
-/* Driver supports 3 diffrent device methods to manage traffic steering:
+/* Driver supports 3 different device methods to manage traffic steering:
  *	-device managed - High level API for ib and eth flow steering. FW is
  *			  managing flow steering tables.
  *	- B0 steering mode - Common low level API for ib and (if supported) eth.
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 3fece51dcf13..18fc65b84b79 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -892,12 +892,7 @@ static inline u16 cmdif_rev(struct mlx5_core_dev *dev)
 
 static inline void *mlx5_vzalloc(unsigned long size)
 {
-	void *rtn;
-
-	rtn = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
-	if (!rtn)
-		rtn = vzalloc(size);
-	return rtn;
+	return kvzalloc(size, GFP_KERNEL);
 }
 
 static inline u32 mlx5_base_mkey(const u32 key)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 5d22e69f51ea..7cb17c6b97de 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -518,6 +518,28 @@ static inline int is_vmalloc_or_module_addr(const void *x)
 }
 #endif
 
+extern void *kvmalloc_node(size_t size, gfp_t flags, int node);
+static inline void *kvmalloc(size_t size, gfp_t flags)
+{
+	return kvmalloc_node(size, flags, NUMA_NO_NODE);
+}
+static inline void *kvzalloc_node(size_t size, gfp_t flags, int node)
+{
+	return kvmalloc_node(size, flags | __GFP_ZERO, node);
+}
+static inline void *kvzalloc(size_t size, gfp_t flags)
+{
+	return kvmalloc(size, flags | __GFP_ZERO);
+}
+
+static inline void *kvmalloc_array(size_t n, size_t size, gfp_t flags)
+{
+	if (size != 0 && n > SIZE_MAX / size)
+		return NULL;
+
+	return kvmalloc(n * size, flags);
+}
+
 extern void kvfree(const void *addr);
 
 static inline atomic_t *compound_mapcount_ptr(struct page *page)
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index e0c3c5e3d8a0..ebaccd4e7d8c 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -74,6 +74,11 @@ extern char * const migratetype_names[MIGRATE_TYPES];
 #  define is_migrate_cma_page(_page) false
 #endif
 
+static inline bool is_migrate_movable(int mt)
+{
+	return is_migrate_cma(mt) || mt == MIGRATE_MOVABLE;
+}
+
 #define for_each_migratetype_order(order, type) \
 	for (order = 0; order < MAX_ORDER; order++) \
 		for (type = 0; type < MIGRATE_TYPES; type++)
diff --git a/include/linux/page-isolation.h b/include/linux/page-isolation.h
index 047d64706f2a..d4cd2014fa6f 100644
--- a/include/linux/page-isolation.h
+++ b/include/linux/page-isolation.h
@@ -33,10 +33,7 @@ bool has_unmovable_pages(struct zone *zone, struct page *page, int count,
 			 bool skip_hwpoisoned_pages);
 void set_pageblock_migratetype(struct page *page, int migratetype);
 int move_freepages_block(struct zone *zone, struct page *page,
-				int migratetype);
-int move_freepages(struct zone *zone,
-			  struct page *start_page, struct page *end_page,
-			  int migratetype);
+				int migratetype, int *num_movable);
 
 /*
  * Changes migrate type in [start_pfn, end_pfn) to be MIGRATE_ISOLATE.
diff --git a/include/linux/printk.h b/include/linux/printk.h
index 571257e0f53d..e10f27468322 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -198,7 +198,7 @@ extern void wake_up_klogd(void);
 
 char *log_buf_addr_get(void);
 u32 log_buf_len_get(void);
-void log_buf_kexec_setup(void);
+void log_buf_vmcoreinfo_setup(void);
 void __init setup_log_buf(int early);
 __printf(1, 2) void dump_stack_set_arch_desc(const char *fmt, ...);
 void dump_stack_print_info(const char *log_lvl);
@@ -246,7 +246,7 @@ static inline u32 log_buf_len_get(void)
 	return 0;
 }
 
-static inline void log_buf_kexec_setup(void)
+static inline void log_buf_vmcoreinfo_setup(void)
 {
 }
 
diff --git a/include/linux/proc_ns.h b/include/linux/proc_ns.h
index 12cb8bd81d2d..58ab28d81fc2 100644
--- a/include/linux/proc_ns.h
+++ b/include/linux/proc_ns.h
@@ -14,6 +14,7 @@ struct inode;
 
 struct proc_ns_operations {
 	const char *name;
+	const char *real_ns_name;
 	int type;
 	struct ns_common *(*get)(struct task_struct *task);
 	void (*put)(struct ns_common *ns);
@@ -26,6 +27,7 @@ extern const struct proc_ns_operations netns_operations;
 extern const struct proc_ns_operations utsns_operations;
 extern const struct proc_ns_operations ipcns_operations;
 extern const struct proc_ns_operations pidns_operations;
+extern const struct proc_ns_operations pidns_for_children_operations;
 extern const struct proc_ns_operations userns_operations;
 extern const struct proc_ns_operations mntns_operations;
 extern const struct proc_ns_operations cgroupns_operations;
diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h
index 9daabe138c99..2b24a6974847 100644
--- a/include/linux/sched/mm.h
+++ b/include/linux/sched/mm.h
@@ -191,4 +191,16 @@ static inline void memalloc_nofs_restore(unsigned int flags)
 	current->flags = (current->flags & ~PF_MEMALLOC_NOFS) | flags;
 }
 
+static inline unsigned int memalloc_noreclaim_save(void)
+{
+	unsigned int flags = current->flags & PF_MEMALLOC;
+	current->flags |= PF_MEMALLOC;
+	return flags;
+}
+
+static inline void memalloc_noreclaim_restore(unsigned int flags)
+{
+	current->flags = (current->flags & ~PF_MEMALLOC) | flags;
+}
+
 #endif /* _LINUX_SCHED_MM_H */
diff --git a/include/linux/sem.h b/include/linux/sem.h
index 4fc222f8755d..9edec926e9d9 100644
--- a/include/linux/sem.h
+++ b/include/linux/sem.h
@@ -10,8 +10,7 @@ struct task_struct;
 
 /* One sem_array data structure for each set of semaphores in the system. */
 struct sem_array {
-	struct kern_ipc_perm	____cacheline_aligned_in_smp
-				sem_perm;	/* permissions .. see ipc.h */
+	struct kern_ipc_perm	sem_perm;	/* permissions .. see ipc.h */
 	time_t			sem_ctime;	/* last change time */
 	struct sem		*sem_base;	/* ptr to first semaphore in array */
 	struct list_head	pending_alter;	/* pending operations */
diff --git a/include/linux/time.h b/include/linux/time.h
index 23f0f5ce3090..c0543f5f25de 100644
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -151,9 +151,6 @@ static inline bool timespec_inject_offset_valid(const struct timespec *ts)
 	return true;
 }
 
-#define CURRENT_TIME		(current_kernel_time())
-#define CURRENT_TIME_SEC	((struct timespec) { get_seconds(), 0 })
-
 /* Some architectures do not supply their own clocksource.
  * This is mainly the case in architectures that get their
  * inter-tick times by reading the counter on their interval
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
index e0cbfb09e60f..201418d5e15c 100644
--- a/include/linux/uaccess.h
+++ b/include/linux/uaccess.h
@@ -203,7 +203,6 @@ static __always_inline void pagefault_disabled_inc(void)
 static __always_inline void pagefault_disabled_dec(void)
 {
 	current->pagefault_disabled--;
-	WARN_ON(current->pagefault_disabled < 0);
 }
 
 /*
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index d68edffbf142..0328ce003992 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -6,6 +6,7 @@
 #include <linux/list.h>
 #include <linux/llist.h>
 #include <asm/page.h>		/* pgprot_t */
+#include <asm/pgtable.h>	/* PAGE_KERNEL */
 #include <linux/rbtree.h>
 
 struct vm_area_struct;		/* vma defining user mapping in mm_types.h */
@@ -80,6 +81,25 @@ extern void *__vmalloc_node_range(unsigned long size, unsigned long align,
 			unsigned long start, unsigned long end, gfp_t gfp_mask,
 			pgprot_t prot, unsigned long vm_flags, int node,
 			const void *caller);
+#ifndef CONFIG_MMU
+extern void *__vmalloc_node_flags(unsigned long size, int node, gfp_t flags);
+#else
+extern void *__vmalloc_node(unsigned long size, unsigned long align,
+			    gfp_t gfp_mask, pgprot_t prot,
+			    int node, const void *caller);
+
+/*
+ * We really want to have this inlined due to caller tracking. This
+ * function is used by the highlevel vmalloc apis and so we want to track
+ * their callers and inlining will achieve that.
+ */
+static inline void *__vmalloc_node_flags(unsigned long size,
+					int node, gfp_t flags)
+{
+	return __vmalloc_node(size, 1, flags, PAGE_KERNEL,
+					node, __builtin_return_address(0));
+}
+#endif
 
 extern void vfree(const void *addr);
 extern void vfree_atomic(const void *addr);
diff --git a/include/trace/events/fs_dax.h b/include/trace/events/fs_dax.h
index c566ddc87f73..08bb3ed18dcc 100644
--- a/include/trace/events/fs_dax.h
+++ b/include/trace/events/fs_dax.h
@@ -150,6 +150,136 @@ DEFINE_EVENT(dax_pmd_insert_mapping_class, name, \
 DEFINE_PMD_INSERT_MAPPING_EVENT(dax_pmd_insert_mapping);
 DEFINE_PMD_INSERT_MAPPING_EVENT(dax_pmd_insert_mapping_fallback);
 
+DECLARE_EVENT_CLASS(dax_pte_fault_class,
+	TP_PROTO(struct inode *inode, struct vm_fault *vmf, int result),
+	TP_ARGS(inode, vmf, result),
+	TP_STRUCT__entry(
+		__field(unsigned long, ino)
+		__field(unsigned long, vm_flags)
+		__field(unsigned long, address)
+		__field(pgoff_t, pgoff)
+		__field(dev_t, dev)
+		__field(unsigned int, flags)
+		__field(int, result)
+	),
+	TP_fast_assign(
+		__entry->dev = inode->i_sb->s_dev;
+		__entry->ino = inode->i_ino;
+		__entry->vm_flags = vmf->vma->vm_flags;
+		__entry->address = vmf->address;
+		__entry->flags = vmf->flags;
+		__entry->pgoff = vmf->pgoff;
+		__entry->result = result;
+	),
+	TP_printk("dev %d:%d ino %#lx %s %s address %#lx pgoff %#lx %s",
+		MAJOR(__entry->dev),
+		MINOR(__entry->dev),
+		__entry->ino,
+		__entry->vm_flags & VM_SHARED ? "shared" : "private",
+		__print_flags(__entry->flags, "|", FAULT_FLAG_TRACE),
+		__entry->address,
+		__entry->pgoff,
+		__print_flags(__entry->result, "|", VM_FAULT_RESULT_TRACE)
+	)
+)
+
+#define DEFINE_PTE_FAULT_EVENT(name) \
+DEFINE_EVENT(dax_pte_fault_class, name, \
+	TP_PROTO(struct inode *inode, struct vm_fault *vmf, int result), \
+	TP_ARGS(inode, vmf, result))
+
+DEFINE_PTE_FAULT_EVENT(dax_pte_fault);
+DEFINE_PTE_FAULT_EVENT(dax_pte_fault_done);
+DEFINE_PTE_FAULT_EVENT(dax_pfn_mkwrite_no_entry);
+DEFINE_PTE_FAULT_EVENT(dax_pfn_mkwrite);
+DEFINE_PTE_FAULT_EVENT(dax_load_hole);
+
+TRACE_EVENT(dax_insert_mapping,
+	TP_PROTO(struct inode *inode, struct vm_fault *vmf, void *radix_entry),
+	TP_ARGS(inode, vmf, radix_entry),
+	TP_STRUCT__entry(
+		__field(unsigned long, ino)
+		__field(unsigned long, vm_flags)
+		__field(unsigned long, address)
+		__field(void *, radix_entry)
+		__field(dev_t, dev)
+		__field(int, write)
+	),
+	TP_fast_assign(
+		__entry->dev = inode->i_sb->s_dev;
+		__entry->ino = inode->i_ino;
+		__entry->vm_flags = vmf->vma->vm_flags;
+		__entry->address = vmf->address;
+		__entry->write = vmf->flags & FAULT_FLAG_WRITE;
+		__entry->radix_entry = radix_entry;
+	),
+	TP_printk("dev %d:%d ino %#lx %s %s address %#lx radix_entry %#lx",
+		MAJOR(__entry->dev),
+		MINOR(__entry->dev),
+		__entry->ino,
+		__entry->vm_flags & VM_SHARED ? "shared" : "private",
+		__entry->write ? "write" : "read",
+		__entry->address,
+		(unsigned long)__entry->radix_entry
+	)
+)
+
+DECLARE_EVENT_CLASS(dax_writeback_range_class,
+	TP_PROTO(struct inode *inode, pgoff_t start_index, pgoff_t end_index),
+	TP_ARGS(inode, start_index, end_index),
+	TP_STRUCT__entry(
+		__field(unsigned long, ino)
+		__field(pgoff_t, start_index)
+		__field(pgoff_t, end_index)
+		__field(dev_t, dev)
+	),
+	TP_fast_assign(
+		__entry->dev = inode->i_sb->s_dev;
+		__entry->ino = inode->i_ino;
+		__entry->start_index = start_index;
+		__entry->end_index = end_index;
+	),
+	TP_printk("dev %d:%d ino %#lx pgoff %#lx-%#lx",
+		MAJOR(__entry->dev),
+		MINOR(__entry->dev),
+		__entry->ino,
+		__entry->start_index,
+		__entry->end_index
+	)
+)
+
+#define DEFINE_WRITEBACK_RANGE_EVENT(name) \
+DEFINE_EVENT(dax_writeback_range_class, name, \
+	TP_PROTO(struct inode *inode, pgoff_t start_index, pgoff_t end_index),\
+	TP_ARGS(inode, start_index, end_index))
+
+DEFINE_WRITEBACK_RANGE_EVENT(dax_writeback_range);
+DEFINE_WRITEBACK_RANGE_EVENT(dax_writeback_range_done);
+
+TRACE_EVENT(dax_writeback_one,
+	TP_PROTO(struct inode *inode, pgoff_t pgoff, pgoff_t pglen),
+	TP_ARGS(inode, pgoff, pglen),
+	TP_STRUCT__entry(
+		__field(unsigned long, ino)
+		__field(pgoff_t, pgoff)
+		__field(pgoff_t, pglen)
+		__field(dev_t, dev)
+	),
+	TP_fast_assign(
+		__entry->dev = inode->i_sb->s_dev;
+		__entry->ino = inode->i_ino;
+		__entry->pgoff = pgoff;
+		__entry->pglen = pglen;
+	),
+	TP_printk("dev %d:%d ino %#lx pgoff %#lx pglen %#lx",
+		MAJOR(__entry->dev),
+		MINOR(__entry->dev),
+		__entry->ino,
+		__entry->pgoff,
+		__entry->pglen
+	)
+)
+
 #endif /* _TRACE_FS_DAX_H */
 
 /* This part must be outside protection */
diff --git a/include/uapi/linux/ipmi.h b/include/uapi/linux/ipmi.h
index 7b26a62e5707..b9095a27a08a 100644
--- a/include/uapi/linux/ipmi.h
+++ b/include/uapi/linux/ipmi.h
@@ -355,7 +355,7 @@ struct ipmi_cmdspec {
 #define IPMICTL_REGISTER_FOR_CMD	_IOR(IPMI_IOC_MAGIC, 14,	\
 					     struct ipmi_cmdspec)
 /*
- * Unregister a regsitered command.  error values:
+ * Unregister a registered command.  error values:
  *  - EFAULT - an address supplied was invalid.
  *  - ENOENT - The netfn/cmd was not found registered for this user.
  */