Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Documentation/filesystems/cifs/ksmbd.rst

@@ -50,11 +50,11 @@ ksmbd.mountd (user space daemon)
 --------------------------------
 
 ksmbd.mountd is userspace process to, transfer user account and password that
-are registered using ksmbd.adduser(part of utils for user space). Further it
+are registered using ksmbd.adduser (part of utils for user space). Further it
 allows sharing information parameters that parsed from smb.conf to ksmbd in
 kernel. For the execution part it has a daemon which is continuously running
 and connected to the kernel interface using netlink socket, it waits for the
-requests(dcerpc and share/user info). It handles RPC calls (at a minimum few
+requests (dcerpc and share/user info). It handles RPC calls (at a minimum few
 dozen) that are most important for file server from NetShareEnum and
 NetServerGetInfo. Complete DCE/RPC response is prepared from the user space
 and passed over to the associated kernel thread for the client.
@@ -154,11 +154,11 @@ Each layer
 1. Enable all component prints
 	# sudo ksmbd.control -d "all"
 
-2. Enable one of components(smb, auth, vfs, oplock, ipc, conn, rdma)
+2. Enable one of components (smb, auth, vfs, oplock, ipc, conn, rdma)
 	# sudo ksmbd.control -d "smb"
 
-3. Show what prints are enable.
-	# cat/sys/class/ksmbd-control/debug
+3. Show what prints are enabled.
+	# cat /sys/class/ksmbd-control/debug
 	  [smb] auth vfs oplock ipc conn [rdma]
 
 4. Disable prints:

Documentation/filesystems/netfs_library.rst

@@ -1,7 +1,7 @@
 .. SPDX-License-Identifier: GPL-2.0
 
 =================================
-NETWORK FILESYSTEM HELPER LIBRARY
+Network Filesystem Helper Library
 =================================
 
 .. Contents:
@@ -37,22 +37,22 @@ into a common call framework.
 
 The following services are provided:
 
- * Handles transparent huge pages (THPs).
+ * Handle folios that span multiple pages.
 
- * Insulates the netfs from VM interface changes.
+ * Insulate the netfs from VM interface changes.
 
- * Allows the netfs to arbitrarily split reads up into pieces, even ones that
-   don't match page sizes or page alignments and that may cross pages.
+ * Allow the netfs to arbitrarily split reads up into pieces, even ones that
+   don't match folio sizes or folio alignments and that may cross folios.
 
- * Allows the netfs to expand a readahead request in both directions to meet
-   its needs.
+ * Allow the netfs to expand a readahead request in both directions to meet its
+   needs.
 
- * Allows the netfs to partially fulfil a read, which will then be resubmitted.
+ * Allow the netfs to partially fulfil a read, which will then be resubmitted.
 
- * Handles local caching, allowing cached data and server-read data to be
+ * Handle local caching, allowing cached data and server-read data to be
    interleaved for a single request.
 
- * Handles clearing of bufferage that aren't on the server.
+ * Handle clearing of bufferage that aren't on the server.
 
  * Handle retrying of reads that failed, switching reads from the cache to the
    server as necessary.
@@ -70,22 +70,22 @@ Read Helper Functions
 
 Three read helpers are provided::
 
- * void netfs_readahead(struct readahead_control *ractl,
-			const struct netfs_read_request_ops *ops,
-			void *netfs_priv);``
- * int netfs_readpage(struct file *file,
-		      struct page *page,
-		      const struct netfs_read_request_ops *ops,
-		      void *netfs_priv);
- * int netfs_write_begin(struct file *file,
-			 struct address_space *mapping,
-			 loff_t pos,
-			 unsigned int len,
-			 unsigned int flags,
-			 struct page **_page,
-			 void **_fsdata,
-			 const struct netfs_read_request_ops *ops,
-			 void *netfs_priv);
+	void netfs_readahead(struct readahead_control *ractl,
+			     const struct netfs_read_request_ops *ops,
+			     void *netfs_priv);
+	int netfs_readpage(struct file *file,
+			   struct folio *folio,
+			   const struct netfs_read_request_ops *ops,
+			   void *netfs_priv);
+	int netfs_write_begin(struct file *file,
+			      struct address_space *mapping,
+			      loff_t pos,
+			      unsigned int len,
+			      unsigned int flags,
+			      struct folio **_folio,
+			      void **_fsdata,
+			      const struct netfs_read_request_ops *ops,
+			      void *netfs_priv);
 
 Each corresponds to a VM operation, with the addition of a couple of parameters
 for the use of the read helpers:
@@ -103,8 +103,8 @@ Both of these values will be stored into the read request structure.
 For ->readahead() and ->readpage(), the network filesystem should just jump
 into the corresponding read helper; whereas for ->write_begin(), it may be a
 little more complicated as the network filesystem might want to flush
-conflicting writes or track dirty data and needs to put the acquired page if an
-error occurs after calling the helper.
+conflicting writes or track dirty data and needs to put the acquired folio if
+an error occurs after calling the helper.
 
 The helpers manage the read request, calling back into the network filesystem
 through the suppplied table of operations.  Waits will be performed as
@@ -253,7 +253,7 @@ through which it can issue requests and negotiate::
 		void (*issue_op)(struct netfs_read_subrequest *subreq);
 		bool (*is_still_valid)(struct netfs_read_request *rreq);
 		int (*check_write_begin)(struct file *file, loff_t pos, unsigned len,
-					 struct page *page, void **_fsdata);
+					 struct folio *folio, void **_fsdata);
 		void (*done)(struct netfs_read_request *rreq);
 		void (*cleanup)(struct address_space *mapping, void *netfs_priv);
 	};
@@ -313,13 +313,14 @@ The operations are as follows:
 
    There is no return value; the netfs_subreq_terminated() function should be
    called to indicate whether or not the operation succeeded and how much data
-   it transferred.  The filesystem also should not deal with setting pages
+   it transferred.  The filesystem also should not deal with setting folios
    uptodate, unlocking them or dropping their refs - the helpers need to deal
    with this as they have to coordinate with copying to the local cache.
 
-   Note that the helpers have the pages locked, but not pinned.  It is possible
-   to use the ITER_XARRAY iov iterator to refer to the range of the inode that
-   is being operated upon without the need to allocate large bvec tables.
+   Note that the helpers have the folios locked, but not pinned.  It is
+   possible to use the ITER_XARRAY iov iterator to refer to the range of the
+   inode that is being operated upon without the need to allocate large bvec
+   tables.
 
  * ``is_still_valid()``
 
@@ -330,15 +331,15 @@ The operations are as follows:
  * ``check_write_begin()``
 
    [Optional] This is called from the netfs_write_begin() helper once it has
-   allocated/grabbed the page to be modified to allow the filesystem to flush
+   allocated/grabbed the folio to be modified to allow the filesystem to flush
    conflicting state before allowing it to be modified.
 
-   It should return 0 if everything is now fine, -EAGAIN if the page should be
+   It should return 0 if everything is now fine, -EAGAIN if the folio should be
    regrabbed and any other error code to abort the operation.
 
  * ``done``
 
-   [Optional] This is called after the pages in the request have all been
+   [Optional] This is called after the folios in the request have all been
    unlocked (and marked uptodate if applicable).
 
  * ``cleanup``
@@ -390,7 +391,7 @@ The read helpers work by the following general procedure:
      * If NETFS_SREQ_CLEAR_TAIL was set, a short read will be cleared to the
        end of the slice instead of reissuing.
 
- * Once the data is read, the pages that have been fully read/cleared:
+ * Once the data is read, the folios that have been fully read/cleared:
 
    * Will be marked uptodate.
 
@@ -398,11 +399,11 @@ The read helpers work by the following general procedure:
 
    * Unlocked
 
- * Any pages that need writing to the cache will then have DIO writes issued.
+ * Any folios that need writing to the cache will then have DIO writes issued.
 
  * Synchronous operations will wait for reading to be complete.
 
- * Writes to the cache will proceed asynchronously and the pages will have the
+ * Writes to the cache will proceed asynchronously and the folios will have the
    PG_fscache mark removed when that completes.
 
  * The request structures will be cleaned up when everything has completed.
@@ -452,6 +453,9 @@ operation table looks like the following::
 			    netfs_io_terminated_t term_func,
 			    void *term_func_priv);
 
+		int (*prepare_write)(struct netfs_cache_resources *cres,
+				     loff_t *_start, size_t *_len, loff_t i_size);
+
 		int (*write)(struct netfs_cache_resources *cres,
 			     loff_t start_pos,
 			     struct iov_iter *iter,
@@ -509,6 +513,14 @@ The methods defined in the table are:
    indicating whether the termination is definitely happening in the caller's
    context.
 
+ * ``prepare_write()``
+
+   [Required] Called to adjust a write to the cache and check that there is
+   sufficient space in the cache.  The start and length values indicate the
+   size of the write that netfslib is proposing, and this can be adjusted by
+   the cache to respect DIO boundaries.  The file size is passed for
+   information.
+
  * ``write()``
 
    [Required] Called to write to the cache.  The start file offset is given
@@ -525,4 +537,9 @@ not the read request structure as they could be used in other situations where
 there isn't a read request structure as well, such as writing dirty data to the
 cache.
 
+
+API Function Reference
+======================
+
 .. kernel-doc:: include/linux/netfs.h
+.. kernel-doc:: fs/netfs/read_helper.c

MAINTAINERS

@@ -15994,6 +15994,7 @@ F:	arch/mips/generic/board-ranchu.c
 
 RANDOM NUMBER DRIVER
 M:	"Theodore Ts'o" <tytso@mit.edu>
+M:	Jason A. Donenfeld <Jason@zx2c4.com>
 S:	Maintained
 F:	drivers/char/random.c
 
@@ -16638,7 +16639,8 @@ F:	drivers/iommu/s390-iommu.c
 
 S390 IUCV NETWORK LAYER
 M:	Julian Wiedmann <jwi@linux.ibm.com>
-M:	Karsten Graul <kgraul@linux.ibm.com>
+M:	Alexandra Winter <wintera@linux.ibm.com>
+M:	Wenjia Zhang <wenjia@linux.ibm.com>
 L:	linux-s390@vger.kernel.org
 L:	netdev@vger.kernel.org
 S:	Supported
@@ -16649,7 +16651,8 @@ F:	net/iucv/
 
 S390 NETWORK DRIVERS
 M:	Julian Wiedmann <jwi@linux.ibm.com>
-M:	Karsten Graul <kgraul@linux.ibm.com>
+M:	Alexandra Winter <wintera@linux.ibm.com>
+M:	Wenjia Zhang <wenjia@linux.ibm.com>
 L:	linux-s390@vger.kernel.org
 L:	netdev@vger.kernel.org
 S:	Supported

Makefile

@@ -2,7 +2,7 @@
 VERSION = 5
 PATCHLEVEL = 16
 SUBLEVEL = 0
-EXTRAVERSION = -rc2
+EXTRAVERSION = -rc3
 NAME = Gobble Gobble
 
 # *DOCUMENTATION*

arch/Kconfig

@@ -991,6 +991,16 @@ config HAVE_ARCH_COMPAT_MMAP_BASES
 	  and vice-versa 32-bit applications to call 64-bit mmap().
 	  Required for applications doing different bitness syscalls.
 
+config PAGE_SIZE_LESS_THAN_64KB
+	def_bool y
+	depends on !ARM64_64K_PAGES
+	depends on !IA64_PAGE_SIZE_64KB
+	depends on !PAGE_SIZE_64KB
+	depends on !PARISC_PAGE_SIZE_64KB
+	depends on !PPC_64K_PAGES
+	depends on !PPC_256K_PAGES
+	depends on !PAGE_SIZE_256KB
+
 # This allows to use a set of generic functions to determine mmap base
 # address by giving priority to top-down scheme only if the process
 # is not in legacy mode (compat task, unlimited stack size or

arch/arm64/include/asm/kvm_arm.h

@@ -91,7 +91,7 @@
 #define HCR_HOST_VHE_FLAGS (HCR_RW | HCR_TGE | HCR_E2H)
 
 /* TCR_EL2 Registers bits */
-#define TCR_EL2_RES1		((1 << 31) | (1 << 23))
+#define TCR_EL2_RES1		((1U << 31) | (1 << 23))
 #define TCR_EL2_TBI		(1 << 20)
 #define TCR_EL2_PS_SHIFT	16
 #define TCR_EL2_PS_MASK		(7 << TCR_EL2_PS_SHIFT)
@@ -276,7 +276,7 @@
 #define CPTR_EL2_TFP_SHIFT 10
 
 /* Hyp Coprocessor Trap Register */
-#define CPTR_EL2_TCPAC	(1 << 31)
+#define CPTR_EL2_TCPAC	(1U << 31)
 #define CPTR_EL2_TAM	(1 << 30)
 #define CPTR_EL2_TTA	(1 << 20)
 #define CPTR_EL2_TFP	(1 << CPTR_EL2_TFP_SHIFT)

arch/arm64/kvm/hyp/include/hyp/switch.h

@@ -403,6 +403,8 @@ typedef bool (*exit_handler_fn)(struct kvm_vcpu *, u64 *);
 
 static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm_vcpu *vcpu);
 
+static void early_exit_filter(struct kvm_vcpu *vcpu, u64 *exit_code);
+
 /*
  * Allow the hypervisor to handle the exit with an exit handler if it has one.
  *
@@ -429,6 +431,18 @@ static inline bool kvm_hyp_handle_exit(struct kvm_vcpu *vcpu, u64 *exit_code)
  */
 static inline bool fixup_guest_exit(struct kvm_vcpu *vcpu, u64 *exit_code)
 {
+	/*
+	 * Save PSTATE early so that we can evaluate the vcpu mode
+	 * early on.
+	 */
+	vcpu->arch.ctxt.regs.pstate = read_sysreg_el2(SYS_SPSR);
+
+	/*
+	 * Check whether we want to repaint the state one way or
+	 * another.
+	 */
+	early_exit_filter(vcpu, exit_code);
+
 	if (ARM_EXCEPTION_CODE(*exit_code) != ARM_EXCEPTION_IRQ)
 		vcpu->arch.fault.esr_el2 = read_sysreg_el2(SYS_ESR);
 

arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h

@@ -70,7 +70,12 @@ static inline void __sysreg_save_el1_state(struct kvm_cpu_context *ctxt)
 static inline void __sysreg_save_el2_return_state(struct kvm_cpu_context *ctxt)
 {
 	ctxt->regs.pc			= read_sysreg_el2(SYS_ELR);
-	ctxt->regs.pstate		= read_sysreg_el2(SYS_SPSR);
+	/*
+	 * Guest PSTATE gets saved at guest fixup time in all
+	 * cases. We still need to handle the nVHE host side here.
+	 */
+	if (!has_vhe() && ctxt->__hyp_running_vcpu)
+		ctxt->regs.pstate	= read_sysreg_el2(SYS_SPSR);
 
 	if (cpus_have_final_cap(ARM64_HAS_RAS_EXTN))
 		ctxt_sys_reg(ctxt, DISR_EL1) = read_sysreg_s(SYS_VDISR_EL2);

arch/arm64/kvm/hyp/nvhe/switch.c

@@ -233,7 +233,7 @@ static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm_vcpu *vcpu)
  * Returns false if the guest ran in AArch32 when it shouldn't have, and
  * thus should exit to the host, or true if a the guest run loop can continue.
  */
-static bool handle_aarch32_guest(struct kvm_vcpu *vcpu, u64 *exit_code)
+static void early_exit_filter(struct kvm_vcpu *vcpu, u64 *exit_code)
 {
 	struct kvm *kvm = kern_hyp_va(vcpu->kvm);
 
@@ -248,10 +248,7 @@ static bool handle_aarch32_guest(struct kvm_vcpu *vcpu, u64 *exit_code)
 		vcpu->arch.target = -1;
 		*exit_code &= BIT(ARM_EXIT_WITH_SERROR_BIT);
 		*exit_code |= ARM_EXCEPTION_IL;
-		return false;
 	}
-
-	return true;
 }
 
 /* Switch to the guest for legacy non-VHE systems */
@@ -316,9 +313,6 @@ int __kvm_vcpu_run(struct kvm_vcpu *vcpu)
 		/* Jump in the fire! */
 		exit_code = __guest_enter(vcpu);
 
-		if (unlikely(!handle_aarch32_guest(vcpu, &exit_code)))
-			break;
-
 		/* And we're baaack! */
 	} while (fixup_guest_exit(vcpu, &exit_code));
 

arch/arm64/kvm/hyp/vhe/switch.c

@@ -112,6 +112,10 @@ static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm_vcpu *vcpu)
 	return hyp_exit_handlers;
 }
 
+static void early_exit_filter(struct kvm_vcpu *vcpu, u64 *exit_code)
+{
+}
+
 /* Switch to the guest for VHE systems running in EL2 */
 static int __kvm_vcpu_run_vhe(struct kvm_vcpu *vcpu)
 {

arch/mips/Kconfig

@@ -3097,7 +3097,7 @@ config STACKTRACE_SUPPORT
 config PGTABLE_LEVELS
 	int
 	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
-	default 3 if 64BIT && !PAGE_SIZE_64KB
+	default 3 if 64BIT && (!PAGE_SIZE_64KB || MIPS_VA_BITS_48)
 	default 2
 
 config MIPS_AUTO_PFN_OFFSET

arch/mips/boot/compressed/Makefile

@@ -52,7 +52,7 @@ endif
 
 vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o
 
-vmlinuzobjs-$(CONFIG_KERNEL_ZSTD) += $(obj)/bswapdi.o
+vmlinuzobjs-$(CONFIG_KERNEL_ZSTD) += $(obj)/bswapdi.o $(obj)/ashldi3.o
 
 targets := $(notdir $(vmlinuzobjs-y))
 

arch/mips/kernel/cpu-probe.c

@@ -1734,8 +1734,6 @@ static inline void decode_cpucfg(struct cpuinfo_mips *c)
 
 static inline void cpu_probe_loongson(struct cpuinfo_mips *c, unsigned int cpu)
 {
-	decode_configs(c);
-
 	/* All Loongson processors covered here define ExcCode 16 as GSExc. */
 	c->options |= MIPS_CPU_GSEXCEX;
 
@@ -1796,6 +1794,8 @@ static inline void cpu_probe_loongson(struct cpuinfo_mips *c, unsigned int cpu)
 		panic("Unknown Loongson Processor ID!");
 		break;
 	}
+
+	decode_configs(c);
 }
 #else
 static inline void cpu_probe_loongson(struct cpuinfo_mips *c, unsigned int cpu) { }

arch/mips/kernel/proc.c

@@ -185,7 +185,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 		seq_puts(m, " tx39_cache");
 	if (cpu_has_octeon_cache)
 		seq_puts(m, " octeon_cache");
-	if (cpu_has_fpu)
+	if (raw_cpu_has_fpu)
 		seq_puts(m, " fpu");
 	if (cpu_has_32fpr)
 		seq_puts(m, " 32fpr");

arch/powerpc/kernel/head_32.h

@@ -202,11 +202,11 @@ vmap_stack_overflow:
 	mfspr	r1, SPRN_SPRG_THREAD
 	lwz	r1, TASK_CPU - THREAD(r1)
 	slwi	r1, r1, 3
-	addis	r1, r1, emergency_ctx@ha
+	addis	r1, r1, emergency_ctx-PAGE_OFFSET@ha
 #else
-	lis	r1, emergency_ctx@ha
+	lis	r1, emergency_ctx-PAGE_OFFSET@ha
 #endif
-	lwz	r1, emergency_ctx@l(r1)
+	lwz	r1, emergency_ctx-PAGE_OFFSET@l(r1)
 	addi	r1, r1, THREAD_SIZE - INT_FRAME_SIZE
 	EXCEPTION_PROLOG_2 0 vmap_stack_overflow
 	prepare_transfer_to_handler

arch/powerpc/kvm/book3s_hv_builtin.c

@@ -695,6 +695,7 @@ static void flush_guest_tlb(struct kvm *kvm)
 				       "r" (0) : "memory");
 		}
 		asm volatile("ptesync": : :"memory");
+		// POWER9 congruence-class TLBIEL leaves ERAT. Flush it now.
 		asm volatile(PPC_RADIX_INVALIDATE_ERAT_GUEST : : :"memory");
 	} else {
 		for (set = 0; set < kvm->arch.tlb_sets; ++set) {
@@ -705,7 +706,9 @@ static void flush_guest_tlb(struct kvm *kvm)
 			rb += PPC_BIT(51);	/* increment set number */
 		}
 		asm volatile("ptesync": : :"memory");
-		asm volatile(PPC_ISA_3_0_INVALIDATE_ERAT : : :"memory");
+		// POWER9 congruence-class TLBIEL leaves ERAT. Flush it now.
+		if (cpu_has_feature(CPU_FTR_ARCH_300))
+			asm volatile(PPC_ISA_3_0_INVALIDATE_ERAT : : :"memory");
 	}
 }
 

arch/riscv/include/asm/kvm_host.h

@@ -12,14 +12,12 @@
 #include <linux/types.h>
 #include <linux/kvm.h>
 #include <linux/kvm_types.h>
+#include <asm/csr.h>
 #include <asm/kvm_vcpu_fp.h>
 #include <asm/kvm_vcpu_timer.h>
 
-#ifdef CONFIG_64BIT
-#define KVM_MAX_VCPUS			(1U << 16)
-#else
-#define KVM_MAX_VCPUS			(1U << 9)
-#endif
+#define KVM_MAX_VCPUS			\
+	((HGATP_VMID_MASK >> HGATP_VMID_SHIFT) + 1)
 
 #define KVM_HALT_POLL_NS_DEFAULT	500000
 

arch/riscv/kvm/mmu.c

@@ -453,6 +453,12 @@ void kvm_arch_flush_shadow_all(struct kvm *kvm)
 void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
 				   struct kvm_memory_slot *slot)
 {
+	gpa_t gpa = slot->base_gfn << PAGE_SHIFT;
+	phys_addr_t size = slot->npages << PAGE_SHIFT;
+
+	spin_lock(&kvm->mmu_lock);
+	stage2_unmap_range(kvm, gpa, size, false);
+	spin_unlock(&kvm->mmu_lock);
 }
 
 void kvm_arch_commit_memory_region(struct kvm *kvm,

arch/x86/include/asm/fpu/api.h

@@ -102,12 +102,6 @@ extern void switch_fpu_return(void);
  */
 extern int cpu_has_xfeatures(u64 xfeatures_mask, const char **feature_name);
 
-/*
- * Tasks that are not using SVA have mm->pasid set to zero to note that they
- * will not have the valid bit set in MSR_IA32_PASID while they are running.
- */
-#define PASID_DISABLED	0
-
 /* Trap handling */
 extern int  fpu__exception_code(struct fpu *fpu, int trap_nr);
 extern void fpu_sync_fpstate(struct fpu *fpu);

arch/x86/kernel/setup.c

@@ -742,7 +742,7 @@ dump_kernel_offset(struct notifier_block *self, unsigned long v, void *p)
 	return 0;
 }
 
-static char *prepare_command_line(void)
+static char * __init prepare_command_line(void)
 {
 #ifdef CONFIG_CMDLINE_BOOL
 #ifdef CONFIG_CMDLINE_OVERRIDE