19 files changed, 41 insertions, 86 deletions

diff --git a/include/linux/aer.h b/include/linux/aer.h
index 2dd175f5debd..29cc10220952 100644
--- a/include/linux/aer.h
+++ b/include/linux/aer.h
@@ -42,11 +42,13 @@ struct aer_capability_regs {
 
 #if defined(CONFIG_PCIEAER)
 int pci_aer_clear_nonfatal_status(struct pci_dev *dev);
+int pcie_aer_is_native(struct pci_dev *dev);
 #else
 static inline int pci_aer_clear_nonfatal_status(struct pci_dev *dev)
 {
 	return -EINVAL;
 }
+static inline int pcie_aer_is_native(struct pci_dev *dev) { return 0; }
 #endif
 
 void cper_print_aer(struct pci_dev *dev, int aer_severity,
diff --git a/include/linux/atomic/atomic-arch-fallback.h b/include/linux/atomic/atomic-arch-fallback.h
index 18f5744dfb5d..b83ef19da13d 100644
--- a/include/linux/atomic/atomic-arch-fallback.h
+++ b/include/linux/atomic/atomic-arch-fallback.h
@@ -459,8 +459,6 @@ raw_atomic_read_acquire(const atomic_t *v)
 {
 #if defined(arch_atomic_read_acquire)
 	return arch_atomic_read_acquire(v);
-#elif defined(arch_atomic_read)
-	return arch_atomic_read(v);
 #else
 	int ret;
 
@@ -508,8 +506,6 @@ raw_atomic_set_release(atomic_t *v, int i)
 {
 #if defined(arch_atomic_set_release)
 	arch_atomic_set_release(v, i);
-#elif defined(arch_atomic_set)
-	arch_atomic_set(v, i);
 #else
 	if (__native_word(atomic_t)) {
 		smp_store_release(&(v)->counter, i);
@@ -2575,8 +2571,6 @@ raw_atomic64_read_acquire(const atomic64_t *v)
 {
 #if defined(arch_atomic64_read_acquire)
 	return arch_atomic64_read_acquire(v);
-#elif defined(arch_atomic64_read)
-	return arch_atomic64_read(v);
 #else
 	s64 ret;
 
@@ -2624,8 +2618,6 @@ raw_atomic64_set_release(atomic64_t *v, s64 i)
 {
 #if defined(arch_atomic64_set_release)
 	arch_atomic64_set_release(v, i);
-#elif defined(arch_atomic64_set)
-	arch_atomic64_set(v, i);
 #else
 	if (__native_word(atomic64_t)) {
 		smp_store_release(&(v)->counter, i);
@@ -4657,4 +4649,4 @@ raw_atomic64_dec_if_positive(atomic64_t *v)
 }
 
 #endif /* _LINUX_ATOMIC_FALLBACK_H */
-// 202b45c7db600ce36198eb1f1fc2c2d5268ace2d
+// 2fdd6702823fa842f9cea57a002e6e4476ae780c
diff --git a/include/linux/btf_ids.h b/include/linux/btf_ids.h
index a3462a9b8e18..a9cb10b0e2e9 100644
--- a/include/linux/btf_ids.h
+++ b/include/linux/btf_ids.h
@@ -49,7 +49,7 @@ word							\
 	____BTF_ID(symbol, word)
 
 #define __ID(prefix) \
-	__PASTE(prefix, __COUNTER__)
+	__PASTE(__PASTE(prefix, __COUNTER__), __LINE__)
 
 /*
  * The BTF_ID defines unique symbol for each ID pointing
diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h
index 06dda85f0424..068f7738be22 100644
--- a/include/linux/cpuhotplug.h
+++ b/include/linux/cpuhotplug.h
@@ -90,7 +90,6 @@ enum cpuhp_state {
 	CPUHP_FS_BUFF_DEAD,
 	CPUHP_PRINTK_DEAD,
 	CPUHP_MM_MEMCQ_DEAD,
-	CPUHP_XFS_DEAD,
 	CPUHP_PERCPU_CNT_DEAD,
 	CPUHP_RADIX_DEAD,
 	CPUHP_PAGE_ALLOC,
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 4aeb3fa11927..b528f063e8ff 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1508,47 +1508,18 @@ static inline bool fsuidgid_has_mapping(struct super_block *sb,
 	       kgid_has_mapping(fs_userns, kgid);
 }
 
-struct timespec64 current_mgtime(struct inode *inode);
 struct timespec64 current_time(struct inode *inode);
 struct timespec64 inode_set_ctime_current(struct inode *inode);
 
-/*
- * Multigrain timestamps
- *
- * Conditionally use fine-grained ctime and mtime timestamps when there
- * are users actively observing them via getattr. The primary use-case
- * for this is NFS clients that use the ctime to distinguish between
- * different states of the file, and that are often fooled by multiple
- * operations that occur in the same coarse-grained timer tick.
- *
- * The kernel always keeps normalized struct timespec64 values in the ctime,
- * which means that only the first 30 bits of the value are used. Use the
- * 31st bit of the ctime's tv_nsec field as a flag to indicate that the value
- * has been queried since it was last updated.
- */
-#define I_CTIME_QUERIED		(1L<<30)
-
 /**
  * inode_get_ctime - fetch the current ctime from the inode
  * @inode: inode from which to fetch ctime
  *
- * Grab the current ctime tv_nsec field from the inode, mask off the
- * I_CTIME_QUERIED flag and return it. This is mostly intended for use by
- * internal consumers of the ctime that aren't concerned with ensuring a
- * fine-grained update on the next change (e.g. when preparing to store
- * the value in the backing store for later retrieval).
- *
- * This is safe to call regardless of whether the underlying filesystem
- * is using multigrain timestamps.
+ * Grab the current ctime from the inode and return it.
  */
 static inline struct timespec64 inode_get_ctime(const struct inode *inode)
 {
-	struct timespec64 ctime;
-
-	ctime.tv_sec = inode->__i_ctime.tv_sec;
-	ctime.tv_nsec = inode->__i_ctime.tv_nsec & ~I_CTIME_QUERIED;
-
-	return ctime;
+	return inode->__i_ctime;
 }
 
 /**
@@ -2334,7 +2305,6 @@ struct file_system_type {
 #define FS_USERNS_MOUNT		8	/* Can be mounted by userns root */
 #define FS_DISALLOW_NOTIFY_PERM	16	/* Disable fanotify permission events */
 #define FS_ALLOW_IDMAP         32      /* FS has been updated to handle vfs idmappings. */
-#define FS_MGTIME		64	/* FS uses multigrain timestamps */
 #define FS_RENAME_DOES_D_MOVE	32768	/* FS will handle d_move() during rename() internally. */
 	int (*init_fs_context)(struct fs_context *);
 	const struct fs_parameter_spec *parameters;
@@ -2358,17 +2328,6 @@ struct file_system_type {
 
 #define MODULE_ALIAS_FS(NAME) MODULE_ALIAS("fs-" NAME)
 
-/**
- * is_mgtime: is this inode using multigrain timestamps
- * @inode: inode to test for multigrain timestamps
- *
- * Return true if the inode uses multigrain timestamps, false otherwise.
- */
-static inline bool is_mgtime(const struct inode *inode)
-{
-	return inode->i_sb->s_type->fs_flags & FS_MGTIME;
-}
-
 extern struct dentry *mount_bdev(struct file_system_type *fs_type,
 	int flags, const char *dev_name, void *data,
 	int (*fill_super)(struct super_block *, void *, int));
@@ -3054,7 +3013,6 @@ extern void page_put_link(void *);
 extern int page_symlink(struct inode *inode, const char *symname, int len);
 extern const struct inode_operations page_symlink_inode_operations;
 extern void kfree_link(void *);
-void fill_mg_cmtime(struct kstat *stat, u32 request_mask, struct inode *inode);
 void generic_fillattr(struct mnt_idmap *, u32, struct inode *, struct kstat *);
 void generic_fill_statx_attr(struct inode *inode, struct kstat *stat);
 extern int vfs_getattr_nosec(const struct path *, struct kstat *, u32, unsigned int);
diff --git a/include/linux/if_team.h b/include/linux/if_team.h
index 1b9b15a492fa..cdc684e04a2f 100644
--- a/include/linux/if_team.h
+++ b/include/linux/if_team.h
@@ -189,6 +189,8 @@ struct team {
 	struct net_device *dev; /* associated netdevice */
 	struct team_pcpu_stats __percpu *pcpu_stats;
 
+	const struct header_ops *header_ops_cache;
+
 	struct mutex lock; /* used for overall locking, e.g. port lists write */
 
 	/*
diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 3df5499f7936..842623d708c2 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -54,7 +54,7 @@ extern p4d_t kasan_early_shadow_p4d[MAX_PTRS_PER_P4D];
 int kasan_populate_early_shadow(const void *shadow_start,
 				const void *shadow_end);
 
-#ifndef __HAVE_ARCH_SHADOW_MAP
+#ifndef kasan_mem_to_shadow
 static inline void *kasan_mem_to_shadow(const void *addr)
 {
 	return (void *)((unsigned long)addr >> KASAN_SHADOW_SCALE_SHIFT)
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index ab94ad4597d0..e4e24da16d2c 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -920,7 +920,7 @@ unsigned long mem_cgroup_get_zone_lru_size(struct lruvec *lruvec,
 	return READ_ONCE(mz->lru_zone_size[zone_idx][lru]);
 }
 
-void mem_cgroup_handle_over_high(void);
+void mem_cgroup_handle_over_high(gfp_t gfp_mask);
 
 unsigned long mem_cgroup_get_max(struct mem_cgroup *memcg);
 
@@ -1458,7 +1458,7 @@ static inline void mem_cgroup_unlock_pages(void)
 	rcu_read_unlock();
 }
 
-static inline void mem_cgroup_handle_over_high(void)
+static inline void mem_cgroup_handle_over_high(gfp_t gfp_mask)
 {
 }
 
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 20eeba8b009d..cd628c4b011e 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -48,6 +48,7 @@ struct nfs_client {
 #define NFS_CS_NOPING		6		/* - don't ping on connect */
 #define NFS_CS_DS		7		/* - Server is a DS */
 #define NFS_CS_REUSEPORT	8		/* - reuse src port on reconnect */
+#define NFS_CS_PNFS		9		/* - Server used for pnfs */
 	struct sockaddr_storage	cl_addr;	/* server identifier */
 	size_t			cl_addrlen;
 	char *			cl_hostname;	/* hostname of server */
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index aa9f4c6ebe26..1c315f854ea8 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -157,7 +157,9 @@ extern	void nfs_unlock_request(struct nfs_page *req);
 extern	void nfs_unlock_and_release_request(struct nfs_page *);
 extern	struct nfs_page *nfs_page_group_lock_head(struct nfs_page *req);
 extern	int nfs_page_group_lock_subrequests(struct nfs_page *head);
-extern	void nfs_join_page_group(struct nfs_page *head, struct inode *inode);
+extern void nfs_join_page_group(struct nfs_page *head,
+				struct nfs_commit_info *cinfo,
+				struct inode *inode);
 extern int nfs_page_group_lock(struct nfs_page *);
 extern void nfs_page_group_unlock(struct nfs_page *);
 extern bool nfs_page_group_sync_on_bit(struct nfs_page *, unsigned int);
diff --git a/include/linux/resume_user_mode.h b/include/linux/resume_user_mode.h
index 285189454449..f8f3e958e9cf 100644
--- a/include/linux/resume_user_mode.h
+++ b/include/linux/resume_user_mode.h
@@ -55,7 +55,7 @@ static inline void resume_user_mode_work(struct pt_regs *regs)
 	}
 #endif
 
-	mem_cgroup_handle_over_high();
+	mem_cgroup_handle_over_high(GFP_KERNEL);
 	blkcg_maybe_throttle_current();
 
 	rseq_handle_notify_resume(NULL, regs);
diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h
index 987a59d977c5..e9bd2f65d7f4 100644
--- a/include/linux/seqlock.h
+++ b/include/linux/seqlock.h
@@ -512,8 +512,8 @@ do {									\
 
 static inline void do_write_seqcount_begin_nested(seqcount_t *s, int subclass)
 {
-	do_raw_write_seqcount_begin(s);
 	seqcount_acquire(&s->dep_map, subclass, 0, _RET_IP_);
+	do_raw_write_seqcount_begin(s);
 }
 
 /**
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index 5b4fb3c791bc..2f8dc47f1eb0 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -779,7 +779,9 @@ xdr_stream_decode_uint32_array(struct xdr_stream *xdr,
 
 	if (unlikely(xdr_stream_decode_u32(xdr, &len) < 0))
 		return -EBADMSG;
-	p = xdr_inline_decode(xdr, size_mul(len, sizeof(*p)));
+	if (U32_MAX >= SIZE_MAX / sizeof(*p) && len > SIZE_MAX / sizeof(*p))
+		return -EBADMSG;
+	p = xdr_inline_decode(xdr, len * sizeof(*p));
 	if (unlikely(!p))
 		return -EBADMSG;
 	if (array == NULL)
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index dd40c75011d2..7c816359d5a9 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -1682,7 +1682,7 @@ struct nft_trans_gc {
 	struct net		*net;
 	struct nft_set		*set;
 	u32			seq;
-	u8			count;
+	u16			count;
 	void			*priv[NFT_TRANS_GC_BATCHCOUNT];
 	struct rcu_head		rcu;
 };
@@ -1700,8 +1700,9 @@ void nft_trans_gc_queue_sync_done(struct nft_trans_gc *trans);
 
 void nft_trans_gc_elem_add(struct nft_trans_gc *gc, void *priv);
 
-struct nft_trans_gc *nft_trans_gc_catchall(struct nft_trans_gc *gc,
-					   unsigned int gc_seq);
+struct nft_trans_gc *nft_trans_gc_catchall_async(struct nft_trans_gc *gc,
+						 unsigned int gc_seq);
+struct nft_trans_gc *nft_trans_gc_catchall_sync(struct nft_trans_gc *gc);
 
 void nft_setelem_data_deactivate(const struct net *net,
 				 const struct nft_set *set,
diff --git a/include/trace/events/xen.h b/include/trace/events/xen.h
index 44a3f565264d..0577f0cdd231 100644
--- a/include/trace/events/xen.h
+++ b/include/trace/events/xen.h
@@ -6,26 +6,26 @@
 #define _TRACE_XEN_H
 
 #include <linux/tracepoint.h>
-#include <asm/paravirt_types.h>
+#include <asm/xen/hypervisor.h>
 #include <asm/xen/trace_types.h>
 
 struct multicall_entry;
 
 /* Multicalls */
 DECLARE_EVENT_CLASS(xen_mc__batch,
-	    TP_PROTO(enum paravirt_lazy_mode mode),
+	    TP_PROTO(enum xen_lazy_mode mode),
 	    TP_ARGS(mode),
 	    TP_STRUCT__entry(
-		    __field(enum paravirt_lazy_mode, mode)
+		    __field(enum xen_lazy_mode, mode)
 		    ),
 	    TP_fast_assign(__entry->mode = mode),
 	    TP_printk("start batch LAZY_%s",
-		      (__entry->mode == PARAVIRT_LAZY_MMU) ? "MMU" :
-		      (__entry->mode == PARAVIRT_LAZY_CPU) ? "CPU" : "NONE")
+		      (__entry->mode == XEN_LAZY_MMU) ? "MMU" :
+		      (__entry->mode == XEN_LAZY_CPU) ? "CPU" : "NONE")
 	);
 #define DEFINE_XEN_MC_BATCH(name)			\
 	DEFINE_EVENT(xen_mc__batch, name,		\
-		TP_PROTO(enum paravirt_lazy_mode mode),	\
+		TP_PROTO(enum xen_lazy_mode mode),	\
 		     TP_ARGS(mode))
 
 DEFINE_XEN_MC_BATCH(xen_mc_batch);
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 8790b3962e4b..0448700890f7 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -1962,7 +1962,9 @@ union bpf_attr {
  * 		performed again, if the helper is used in combination with
  * 		direct packet access.
  * 	Return
- * 		0 on success, or a negative error in case of failure.
+ * 		0 on success, or a negative error in case of failure. Positive
+ * 		error indicates a potential drop or congestion in the target
+ * 		device. The particular positive error codes are not defined.
  *
  * u64 bpf_get_current_pid_tgid(void)
  * 	Description
diff --git a/include/uapi/linux/stddef.h b/include/uapi/linux/stddef.h
index 7c3fc3980881..5c6c4269f7ef 100644
--- a/include/uapi/linux/stddef.h
+++ b/include/uapi/linux/stddef.h
@@ -29,6 +29,11 @@
 		struct TAG { MEMBERS } ATTRS NAME; \
 	}
 
+#ifdef __cplusplus
+/* sizeof(struct{}) is 1 in C++, not 0, can't use C version of the macro. */
+#define __DECLARE_FLEX_ARRAY(T, member)	\
+	T member[0]
+#else
 /**
  * __DECLARE_FLEX_ARRAY() - Declare a flexible array usable in a union
  *
@@ -49,3 +54,5 @@
 #ifndef __counted_by
 #define __counted_by(m)
 #endif
+
+#endif /* _UAPI_LINUX_STDDEF_H */
diff --git a/include/xen/arm/hypervisor.h b/include/xen/arm/hypervisor.h
index 43ef24dd030e..9995695204f5 100644
--- a/include/xen/arm/hypervisor.h
+++ b/include/xen/arm/hypervisor.h
@@ -7,18 +7,6 @@
 extern struct shared_info *HYPERVISOR_shared_info;
 extern struct start_info *xen_start_info;
 
-/* Lazy mode for batching updates / context switch */
-enum paravirt_lazy_mode {
-	PARAVIRT_LAZY_NONE,
-	PARAVIRT_LAZY_MMU,
-	PARAVIRT_LAZY_CPU,
-};
-
-static inline enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
-{
-	return PARAVIRT_LAZY_NONE;
-}
-
 #ifdef CONFIG_XEN
 void __init xen_early_init(void);
 #else
diff --git a/include/xen/events.h b/include/xen/events.h
index 95d5e28de324..23932b0673dc 100644
--- a/include/xen/events.h
+++ b/include/xen/events.h
@@ -105,8 +105,7 @@ int irq_from_virq(unsigned int cpu, unsigned int virq);
 evtchn_port_t evtchn_from_irq(unsigned irq);
 
 int xen_set_callback_via(uint64_t via);
-void xen_evtchn_do_upcall(struct pt_regs *regs);
-int xen_hvm_evtchn_do_upcall(void);
+int xen_evtchn_do_upcall(void);
 
 /* Bind a pirq for a physical interrupt to an irq. */
 int xen_bind_pirq_gsi_to_irq(unsigned gsi,