From 4ff4c745a16c4c151a71863420811e7f406c3ec2 Mon Sep 17 00:00:00 2001 From: Andrea Parri Date: Wed, 31 Jan 2024 15:49:35 +0100 Subject: locking: Introduce prepare_sync_core_cmd() Introduce an architecture function that architectures can use to set up ("prepare") SYNC_CORE commands. The function will be used by RISC-V to update its "deferred icache- flush" data structures (icache_stale_mask). Architectures defining prepare_sync_core_cmd() static inline need to select ARCH_HAS_PREPARE_SYNC_CORE_CMD. Suggested-by: Mathieu Desnoyers Signed-off-by: Andrea Parri Reviewed-by: Mathieu Desnoyers Link: https://lore.kernel.org/r/20240131144936.29190-4-parri.andrea@gmail.com Signed-off-by: Palmer Dabbelt --- init/Kconfig | 3 +++ 1 file changed, 3 insertions(+) (limited to 'init') diff --git a/init/Kconfig b/init/Kconfig index 8df18f3a9748..c3994b92333d 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1970,6 +1970,9 @@ source "kernel/Kconfig.locks" config ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE bool +config ARCH_HAS_PREPARE_SYNC_CORE_CMD + bool + config ARCH_HAS_SYNC_CORE_BEFORE_USERMODE bool -- cgit v1.2.3-58-ga151 From cd14b01846612f3f3277e97bfbecba4c8cee5ce9 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Sun, 11 Feb 2024 21:48:08 +0900 Subject: treewide: replace or remove redundant def_bool in Kconfig files 'def_bool X' is a shorthand for 'bool' plus 'default X'. 'def_bool' is redundant where 'bool' is already present, so 'def_bool X' can be replaced with 'default X', or removed if X is 'n'. Signed-off-by: Masahiro Yamada --- arch/parisc/Kconfig | 4 ++-- arch/riscv/kernel/tests/Kconfig.debug | 2 +- arch/x86/kvm/Kconfig | 2 +- arch/x86/xen/Kconfig | 1 - drivers/acpi/Kconfig | 1 - drivers/iommu/intel/Kconfig | 2 +- drivers/md/Kconfig | 1 - init/Kconfig | 2 +- lib/Kconfig.debug | 2 +- mm/Kconfig | 7 +++---- net/dccp/ccids/Kconfig | 2 +- 11 files changed, 11 insertions(+), 15 deletions(-) (limited to 'init') diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index 5c845e8d59d9..03ce7e185935 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -237,9 +237,9 @@ config PARISC_HUGE_KERNEL def_bool y if !MODULES || UBSAN || FTRACE || COMPILE_TEST config MLONGCALLS - def_bool y if PARISC_HUGE_KERNEL bool "Enable the -mlong-calls compiler option for big kernels" if !PARISC_HUGE_KERNEL depends on PA8X00 + default PARISC_HUGE_KERNEL help If you configure the kernel to include many drivers built-in instead as modules, the kernel executable may become too big, so that the @@ -254,9 +254,9 @@ config MLONGCALLS Enabling this option will probably slow down your kernel. config 64BIT - def_bool y if "$(ARCH)" = "parisc64" bool "64-bit kernel" if "$(ARCH)" = "parisc" depends on PA8X00 + default "$(ARCH)" = "parisc64" help Enable this if you want to support 64bit kernel on PA-RISC platform. diff --git a/arch/riscv/kernel/tests/Kconfig.debug b/arch/riscv/kernel/tests/Kconfig.debug index 5dba64e8e977..78cea5d2c270 100644 --- a/arch/riscv/kernel/tests/Kconfig.debug +++ b/arch/riscv/kernel/tests/Kconfig.debug @@ -6,7 +6,7 @@ config AS_HAS_ULEB128 menuconfig RUNTIME_KERNEL_TESTING_MENU bool "arch/riscv/kernel runtime Testing" - def_bool y + default y help Enable riscv kernel runtime testing. diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig index 87e3da7b0439..d72be552c86d 100644 --- a/arch/x86/kvm/Kconfig +++ b/arch/x86/kvm/Kconfig @@ -119,8 +119,8 @@ config KVM_AMD will be called kvm-amd. config KVM_AMD_SEV - def_bool y bool "AMD Secure Encrypted Virtualization (SEV) support" + default y depends on KVM_AMD && X86_64 depends on CRYPTO_DEV_SP_PSP && !(KVM_AMD=y && CRYPTO_DEV_CCP_DD=m) help diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig index a65fc2ae15b4..77e788e928cd 100644 --- a/arch/x86/xen/Kconfig +++ b/arch/x86/xen/Kconfig @@ -81,7 +81,6 @@ config XEN_PVH bool "Xen PVH guest support" depends on XEN && XEN_PVHVM && ACPI select PVH - def_bool n help Support for running as a Xen PVH guest. diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 3c3f8037ebed..8ce591679d50 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -474,7 +474,6 @@ config ACPI_BGRT config ACPI_REDUCED_HARDWARE_ONLY bool "Hardware-reduced ACPI support only" if EXPERT - def_bool n help This config item changes the way the ACPI code is built. When this option is selected, the kernel will use a specialized version of diff --git a/drivers/iommu/intel/Kconfig b/drivers/iommu/intel/Kconfig index 012cd2541a68..95d9f4e1a176 100644 --- a/drivers/iommu/intel/Kconfig +++ b/drivers/iommu/intel/Kconfig @@ -97,8 +97,8 @@ config INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON the default value. config INTEL_IOMMU_PERF_EVENTS - def_bool y bool "Intel IOMMU performance events" + default y depends on INTEL_IOMMU && PERF_EVENTS help Selecting this option will enable the performance monitoring diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig index a743e2c572fc..0392154bbcab 100644 --- a/drivers/md/Kconfig +++ b/drivers/md/Kconfig @@ -519,7 +519,6 @@ config DM_VERITY If unsure, say N. config DM_VERITY_VERIFY_ROOTHASH_SIG - def_bool n bool "Verity data device root hash signature verification support" depends on DM_VERITY select SYSTEM_DATA_VERIFICATION diff --git a/init/Kconfig b/init/Kconfig index 8426d59cc634..a4b80754e580 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1504,7 +1504,7 @@ config MULTIUSER config SGETMASK_SYSCALL bool "sgetmask/ssetmask syscalls support" if EXPERT - def_bool PARISC || M68K || PPC || MIPS || X86 || SPARC || MICROBLAZE || SUPERH + default PARISC || M68K || PPC || MIPS || X86 || SPARC || MICROBLAZE || SUPERH help sys_sgetmask and sys_ssetmask are obsolete system calls no longer supported in libc but still enabled by default in some diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 975a07f9f1cc..e9b3b9543661 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -2127,7 +2127,7 @@ config KCOV_IRQ_AREA_SIZE menuconfig RUNTIME_TESTING_MENU bool "Runtime Testing" - def_bool y + default y if RUNTIME_TESTING_MENU diff --git a/mm/Kconfig b/mm/Kconfig index ffc3a2ba3a8c..4914eb3216fc 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -599,7 +599,7 @@ config MEMORY_BALLOON # support for memory balloon compaction config BALLOON_COMPACTION bool "Allow for balloon memory compaction/migration" - def_bool y + default y depends on COMPACTION && MEMORY_BALLOON help Memory fragmentation introduced by ballooning might reduce @@ -614,7 +614,7 @@ config BALLOON_COMPACTION # support for memory compaction config COMPACTION bool "Allow for memory compaction" - def_bool y + default y select MIGRATION depends on MMU help @@ -637,7 +637,6 @@ config COMPACT_UNEVICTABLE_DEFAULT # support for free page reporting config PAGE_REPORTING bool "Free page reporting" - def_bool n help Free page reporting allows for the incremental acquisition of free pages from the buddy allocator for the purpose of reporting @@ -649,7 +648,7 @@ config PAGE_REPORTING # config MIGRATION bool "Page migration" - def_bool y + default y depends on (NUMA || ARCH_ENABLE_MEMORY_HOTREMOVE || COMPACTION || CMA) && MMU help Allows the migration of the physical location of pages of processes diff --git a/net/dccp/ccids/Kconfig b/net/dccp/ccids/Kconfig index a3eeb84d16f9..e3d388c33d25 100644 --- a/net/dccp/ccids/Kconfig +++ b/net/dccp/ccids/Kconfig @@ -13,7 +13,7 @@ config IP_DCCP_CCID2_DEBUG config IP_DCCP_CCID3 bool "CCID-3 (TCP-Friendly)" - def_bool y if (IP_DCCP = y || IP_DCCP = m) + default IP_DCCP = y || IP_DCCP = m help CCID-3 denotes TCP-Friendly Rate Control (TFRC), an equation-based rate-controlled congestion control mechanism. TFRC is designed to -- cgit v1.2.3-58-ga151 From 4624b346cf67400ef46a31771011fb798dd2f999 Mon Sep 17 00:00:00 2001 From: John Sperbeck Date: Sun, 17 Mar 2024 15:15:22 -0700 Subject: init: open /initrd.image with O_LARGEFILE If initrd data is larger than 2Gb, we'll eventually fail to write to the /initrd.image file when we hit that limit, unless O_LARGEFILE is set. Link: https://lkml.kernel.org/r/20240317221522.896040-1-jsperbeck@google.com Signed-off-by: John Sperbeck Cc: Jens Axboe Cc: Nick Desaulniers Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Signed-off-by: Andrew Morton --- init/initramfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'init') diff --git a/init/initramfs.c b/init/initramfs.c index da79760b8be3..3127e0bf7bbd 100644 --- a/init/initramfs.c +++ b/init/initramfs.c @@ -682,7 +682,7 @@ static void __init populate_initrd_image(char *err) printk(KERN_INFO "rootfs image is not initramfs (%s); looks like an initrd\n", err); - file = filp_open("/initrd.image", O_WRONLY | O_CREAT, 0700); + file = filp_open("/initrd.image", O_WRONLY|O_CREAT|O_LARGEFILE, 0700); if (IS_ERR(file)) return; -- cgit v1.2.3-58-ga151 From 8434f9aa6b7e77bc1459d75d1293c3f55bf4687b Mon Sep 17 00:00:00 2001 From: John Sperbeck Date: Sat, 23 Mar 2024 08:29:34 -0700 Subject: init: open output files from cpio unpacking with O_LARGEFILE If a member of a cpio archive for an initrd or initrams is larger than 2Gb, we'll eventually fail to write to that file when we get to that limit, unless O_LARGEFILE is set. The problem can be seen with this recipe, assuming that BLK_DEV_RAM is not configured: cd /tmp dd if=/dev/zero of=BIGFILE bs=1048576 count=2200 echo BIGFILE | cpio -o -H newc -R root:root > initrd.img kexec -l /boot/vmlinuz-$(uname -r) --initrd=initrd.img --reuse-cmdline kexec -e The console will show 'Initramfs unpacking failed: write error'. With the patch, the error is gone. Link: https://lkml.kernel.org/r/20240323152934.3307391-1-jsperbeck@google.com Signed-off-by: John Sperbeck Cc: Jens Axboe Cc: Nick Desaulniers Cc: Peter Zijlstra Cc: Randy Dunlap Cc: Thomas Gleixner Signed-off-by: Andrew Morton --- init/initramfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'init') diff --git a/init/initramfs.c b/init/initramfs.c index 3127e0bf7bbd..a298a3854a80 100644 --- a/init/initramfs.c +++ b/init/initramfs.c @@ -367,7 +367,7 @@ static int __init do_name(void) if (S_ISREG(mode)) { int ml = maybe_link(); if (ml >= 0) { - int openflags = O_WRONLY|O_CREAT; + int openflags = O_WRONLY|O_CREAT|O_LARGEFILE; if (ml != 1) openflags |= O_TRUNC; wfile = filp_open(collected, openflags, mode); -- cgit v1.2.3-58-ga151