diff options
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 34 | ||||
| -rw-r--r-- | init/do_mounts_initrd.c | 5 | ||||
| -rw-r--r-- | init/init_task.c | 3 | ||||
| -rw-r--r-- | init/main.c | 16 |
4 files changed, 42 insertions, 16 deletions
diff --git a/init/Kconfig b/init/Kconfig index 0498af567f70..9082ed33a9cd 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -191,13 +191,16 @@ config HAVE_KERNEL_LZO config HAVE_KERNEL_LZ4 bool +config HAVE_KERNEL_ZSTD + bool + config HAVE_KERNEL_UNCOMPRESSED bool choice prompt "Kernel compression mode" default KERNEL_GZIP - depends on HAVE_KERNEL_GZIP || HAVE_KERNEL_BZIP2 || HAVE_KERNEL_LZMA || HAVE_KERNEL_XZ || HAVE_KERNEL_LZO || HAVE_KERNEL_LZ4 || HAVE_KERNEL_UNCOMPRESSED + depends on HAVE_KERNEL_GZIP || HAVE_KERNEL_BZIP2 || HAVE_KERNEL_LZMA || HAVE_KERNEL_XZ || HAVE_KERNEL_LZO || HAVE_KERNEL_LZ4 || HAVE_KERNEL_ZSTD || HAVE_KERNEL_UNCOMPRESSED help The linux kernel is a kind of self-extracting executable. Several compression algorithms are available, which differ @@ -276,6 +279,16 @@ config KERNEL_LZ4 is about 8% bigger than LZO. But the decompression speed is faster than LZO. +config KERNEL_ZSTD + bool "ZSTD" + depends on HAVE_KERNEL_ZSTD + help + ZSTD is a compression algorithm targeting intermediate compression + with fast decompression speed. It will compress better than GZIP and + decompress around the same speed as LZO, but slower than LZ4. You + will need at least 192 KB RAM or more for booting. The zstd command + line tool is required for compression. + config KERNEL_UNCOMPRESSED bool "None" depends on HAVE_KERNEL_UNCOMPRESSED @@ -492,8 +505,23 @@ config HAVE_SCHED_AVG_IRQ depends on SMP config SCHED_THERMAL_PRESSURE - bool "Enable periodic averaging of thermal pressure" + bool + default y if ARM && ARM_CPU_TOPOLOGY + default y if ARM64 depends on SMP + depends on CPU_FREQ_THERMAL + help + Select this option to enable thermal pressure accounting in the + scheduler. Thermal pressure is the value conveyed to the scheduler + that reflects the reduction in CPU compute capacity resulted from + thermal throttling. Thermal throttling occurs when the performance of + a CPU is capped due to high operating temperatures. + + If selected, the scheduler will be able to balance tasks accordingly, + i.e. put less load on throttled CPUs than on non/less throttled ones. + + This requires the architecture to implement + arch_set_thermal_pressure() and arch_get_thermal_pressure(). config BSD_PROCESS_ACCT bool "BSD Process Accounting" @@ -1957,7 +1985,7 @@ config MMAP_ALLOW_UNINITIALIZED userspace. Since that isn't generally a problem on no-MMU systems, it is normally safe to say Y here. - See Documentation/nommu-mmap.txt for more information. + See Documentation/mm/nommu-mmap.rst for more information. config SYSTEM_DATA_VERIFICATION def_bool n diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c index d72beda824aa..53314d7da4be 100644 --- a/init/do_mounts_initrd.c +++ b/init/do_mounts_initrd.c @@ -45,11 +45,6 @@ static int __init early_initrdmem(char *p) } early_param("initrdmem", early_initrdmem); -/* - * This is here as the initrd keyword has been in use since 11/2018 - * on ARM, PowerPC, and MIPS. - * It should not be; it is reserved for bootloaders. - */ static int __init early_initrd(char *p) { return early_initrdmem(p); diff --git a/init/init_task.c b/init/init_task.c index 15089d15010a..a3eb3847e1f4 100644 --- a/init/init_task.c +++ b/init/init_task.c @@ -204,6 +204,9 @@ struct task_struct init_task #ifdef CONFIG_SECURITY .security = NULL, #endif +#ifdef CONFIG_SECCOMP + .seccomp = { .filter_count = ATOMIC_INIT(0) }, +#endif }; EXPORT_SYMBOL(init_task); diff --git a/init/main.c b/init/main.c index 0ead83e86b5a..15bd0efff3df 100644 --- a/init/main.c +++ b/init/main.c @@ -779,14 +779,16 @@ static void __init report_meminit(void) { const char *stack; - if (IS_ENABLED(CONFIG_INIT_STACK_ALL)) - stack = "all"; + if (IS_ENABLED(CONFIG_INIT_STACK_ALL_PATTERN)) + stack = "all(pattern)"; + else if (IS_ENABLED(CONFIG_INIT_STACK_ALL_ZERO)) + stack = "all(zero)"; else if (IS_ENABLED(CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF_ALL)) - stack = "byref_all"; + stack = "byref_all(zero)"; else if (IS_ENABLED(CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF)) - stack = "byref"; + stack = "byref(zero)"; else if (IS_ENABLED(CONFIG_GCC_PLUGIN_STRUCTLEAK_USER)) - stack = "__user"; + stack = "__user(zero)"; else stack = "off"; @@ -1329,9 +1331,7 @@ static int run_init_process(const char *init_filename) pr_debug(" with environment:\n"); for (p = envp_init; *p; p++) pr_debug(" %s\n", *p); - return do_execve(getname_kernel(init_filename), - (const char __user *const __user *)argv_init, - (const char __user *const __user *)envp_init); + return kernel_execve(init_filename, argv_init, envp_init); } static int try_to_run_init_process(const char *init_filename) |