diff options
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 35 | ||||
| -rw-r--r-- | init/do_mounts.c | 10 | ||||
| -rw-r--r-- | init/do_mounts_initrd.c | 10 | ||||
| -rw-r--r-- | init/do_mounts_md.c | 10 | ||||
| -rw-r--r-- | init/do_mounts_rd.c | 10 | ||||
| -rw-r--r-- | init/init_task.c | 13 | ||||
| -rw-r--r-- | init/initramfs.c | 10 | ||||
| -rw-r--r-- | init/main.c | 34 |
8 files changed, 47 insertions, 85 deletions
diff --git a/init/Kconfig b/init/Kconfig index 4dc783023e43..1e234e2f1cba 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -436,7 +436,7 @@ config BSD_PROCESS_ACCT_V3 help If you say Y here, the process accounting information is written in a new file format that also logs the process IDs of each - process and it's parent. Note that this file format is incompatible + process and its parent. Note that this file format is incompatible with previous v0/v1/v2 file formats, so you will need updated tools for processing it. A preliminary version of these tools is available at <http://www.gnu.org/software/acct/>. @@ -708,6 +708,11 @@ config MEMCG_SWAP_ENABLED select this option (if, for some reason, they need to disable it then swapaccount=0 does the trick). +config MEMCG_KMEM + bool + depends on MEMCG && !SLOB + default y + config BLK_CGROUP bool "IO controller" depends on BLOCK @@ -962,6 +967,18 @@ config NET_NS endif # NAMESPACES +config CHECKPOINT_RESTORE + bool "Checkpoint/restore support" + select PROC_CHILDREN + default n + help + Enables additional kernel features in a sake of checkpoint/restore. + In particular it adds auxiliary prctl codes to setup process text, + data and heap segment sizes, and a few additional /proc filesystem + entries. + + If unsure, say N here. + config SCHED_AUTOGROUP bool "Automatic process group scheduling" select CGROUPS @@ -1080,6 +1097,8 @@ config LD_DEAD_CODE_DATA_ELIMINATION bool "Dead code and data elimination (EXPERIMENTAL)" depends on HAVE_LD_DEAD_CODE_DATA_ELIMINATION depends on EXPERT + depends on $(cc-option,-ffunction-sections -fdata-sections) + depends on $(ld-option,--gc-sections) help Enable this if you want to do dead code and data elimination with the linker by compiling with -ffunction-sections -fdata-sections, @@ -1378,18 +1397,6 @@ config MEMBARRIER If unsure, say Y. -config CHECKPOINT_RESTORE - bool "Checkpoint/restore support" if EXPERT - select PROC_CHILDREN - default n - help - Enables additional kernel features in a sake of checkpoint/restore. - In particular it adds auxiliary prctl codes to setup process text, - data and heap segment sizes, and a few additional /proc filesystem - entries. - - If unsure, say N here. - config KALLSYMS bool "Load all symbols for debugging/ksymoops" if EXPERT default y @@ -1697,7 +1704,7 @@ config MMAP_ALLOW_UNINITIALIZED default n help Normally, and according to the Linux spec, anonymous memory obtained - from mmap() has it's contents cleared before it is passed to + from mmap() has its contents cleared before it is passed to userspace. Enabling this config option allows you to request that mmap() skip that if it is given an MAP_UNINITIALIZED flag, thus providing a huge performance boost. If this option is not enabled, diff --git a/init/do_mounts.c b/init/do_mounts.c index 2c71dabe5626..e1c9afa9d8c9 100644 --- a/init/do_mounts.c +++ b/init/do_mounts.c @@ -1,13 +1,3 @@ -/* - * Many of the syscalls used in this file expect some of the arguments - * to be __user pointers not __kernel pointers. To limit the sparse - * noise, turn off sparse checking for this file. - */ -#ifdef __CHECKER__ -#undef __CHECKER__ -#warning "Sparse checking disabled for this file" -#endif - #include <linux/module.h> #include <linux/sched.h> #include <linux/ctype.h> diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c index 5a91aefa7305..d1a5d885ce13 100644 --- a/init/do_mounts_initrd.c +++ b/init/do_mounts_initrd.c @@ -1,14 +1,4 @@ // SPDX-License-Identifier: GPL-2.0 -/* - * Many of the syscalls used in this file expect some of the arguments - * to be __user pointers not __kernel pointers. To limit the sparse - * noise, turn off sparse checking for this file. - */ -#ifdef __CHECKER__ -#undef __CHECKER__ -#warning "Sparse checking disabled for this file" -#endif - #include <linux/unistd.h> #include <linux/kernel.h> #include <linux/fs.h> diff --git a/init/do_mounts_md.c b/init/do_mounts_md.c index 7d85d172bc7e..b84031528dd4 100644 --- a/init/do_mounts_md.c +++ b/init/do_mounts_md.c @@ -1,14 +1,4 @@ // SPDX-License-Identifier: GPL-2.0 -/* - * Many of the syscalls used in this file expect some of the arguments - * to be __user pointers not __kernel pointers. To limit the sparse - * noise, turn off sparse checking for this file. - */ -#ifdef __CHECKER__ -#undef __CHECKER__ -#warning "Sparse checking disabled for this file" -#endif - #include <linux/delay.h> #include <linux/raid/md_u.h> #include <linux/raid/md_p.h> diff --git a/init/do_mounts_rd.c b/init/do_mounts_rd.c index 035a5f0ab26b..32fb049d18f9 100644 --- a/init/do_mounts_rd.c +++ b/init/do_mounts_rd.c @@ -1,14 +1,4 @@ // SPDX-License-Identifier: GPL-2.0 -/* - * Many of the syscalls used in this file expect some of the arguments - * to be __user pointers not __kernel pointers. To limit the sparse - * noise, turn off sparse checking for this file. - */ -#ifdef __CHECKER__ -#undef __CHECKER__ -#warning "Sparse checking disabled for this file" -#endif - #include <linux/kernel.h> #include <linux/fs.h> #include <linux/minix_fs.h> diff --git a/init/init_task.c b/init/init_task.c index 74f60baa2799..5aebe3be4d7c 100644 --- a/init/init_task.c +++ b/init/init_task.c @@ -22,6 +22,7 @@ static struct signal_struct init_signals = { .list = LIST_HEAD_INIT(init_signals.shared_pending.list), .signal = {{0}} }, + .multiprocess = HLIST_HEAD_INIT, .rlim = INIT_RLIMITS, .cred_guard_mutex = __MUTEX_INITIALIZER(init_signals.cred_guard_mutex), #ifdef CONFIG_POSIX_TIMERS @@ -33,6 +34,12 @@ static struct signal_struct init_signals = { }, #endif INIT_CPU_TIMERS(init_signals) + .pids = { + [PIDTYPE_PID] = &init_struct_pid, + [PIDTYPE_TGID] = &init_struct_pid, + [PIDTYPE_PGID] = &init_struct_pid, + [PIDTYPE_SID] = &init_struct_pid, + }, INIT_PREV_CPUTIME(init_signals) }; @@ -111,11 +118,7 @@ struct task_struct init_task INIT_CPU_TIMERS(init_task) .pi_lock = __RAW_SPIN_LOCK_UNLOCKED(init_task.pi_lock), .timer_slack_ns = 50000, /* 50 usec default slack */ - .pids = { - [PIDTYPE_PID] = INIT_PID_LINK(PIDTYPE_PID), - [PIDTYPE_PGID] = INIT_PID_LINK(PIDTYPE_PGID), - [PIDTYPE_SID] = INIT_PID_LINK(PIDTYPE_SID), - }, + .thread_pid = &init_struct_pid, .thread_group = LIST_HEAD_INIT(init_task.thread_group), .thread_node = LIST_HEAD_INIT(init_signals.thread_head), #ifdef CONFIG_AUDITSYSCALL diff --git a/init/initramfs.c b/init/initramfs.c index 13643c46ebab..640557788026 100644 --- a/init/initramfs.c +++ b/init/initramfs.c @@ -1,14 +1,4 @@ // SPDX-License-Identifier: GPL-2.0 -/* - * Many of the syscalls used in this file expect some of the arguments - * to be __user pointers not __kernel pointers. To limit the sparse - * noise, turn off sparse checking for this file. - */ -#ifdef __CHECKER__ -#undef __CHECKER__ -#warning "Sparse checking disabled for this file" -#endif - #include <linux/init.h> #include <linux/fs.h> #include <linux/slab.h> diff --git a/init/main.c b/init/main.c index 38c68b593d0d..18f8f0140fa0 100644 --- a/init/main.c +++ b/init/main.c @@ -647,6 +647,7 @@ asmlinkage __visible void __init start_kernel(void) profile_init(); call_function_init(); WARN(!irqs_disabled(), "Interrupts were enabled early\n"); + early_boot_irqs_disabled = false; local_irq_enable(); @@ -662,7 +663,7 @@ asmlinkage __visible void __init start_kernel(void) panic("Too many boot %s vars at `%s'", panic_later, panic_param); - lockdep_info(); + lockdep_init(); /* * Need to run this when irqs are enabled, because it wants @@ -901,18 +902,18 @@ int __init_or_module do_one_initcall(initcall_t fn) } -extern initcall_t __initcall_start[]; -extern initcall_t __initcall0_start[]; -extern initcall_t __initcall1_start[]; -extern initcall_t __initcall2_start[]; -extern initcall_t __initcall3_start[]; -extern initcall_t __initcall4_start[]; -extern initcall_t __initcall5_start[]; -extern initcall_t __initcall6_start[]; -extern initcall_t __initcall7_start[]; -extern initcall_t __initcall_end[]; +extern initcall_entry_t __initcall_start[]; +extern initcall_entry_t __initcall0_start[]; +extern initcall_entry_t __initcall1_start[]; +extern initcall_entry_t __initcall2_start[]; +extern initcall_entry_t __initcall3_start[]; +extern initcall_entry_t __initcall4_start[]; +extern initcall_entry_t __initcall5_start[]; +extern initcall_entry_t __initcall6_start[]; +extern initcall_entry_t __initcall7_start[]; +extern initcall_entry_t __initcall_end[]; -static initcall_t *initcall_levels[] __initdata = { +static initcall_entry_t *initcall_levels[] __initdata = { __initcall0_start, __initcall1_start, __initcall2_start, @@ -938,7 +939,7 @@ static char *initcall_level_names[] __initdata = { static void __init do_initcall_level(int level) { - initcall_t *fn; + initcall_entry_t *fn; strcpy(initcall_command_line, saved_command_line); parse_args(initcall_level_names[level], @@ -949,7 +950,7 @@ static void __init do_initcall_level(int level) trace_initcall_level(initcall_level_names[level]); for (fn = initcall_levels[level]; fn < initcall_levels[level+1]; fn++) - do_one_initcall(*fn); + do_one_initcall(initcall_from_entry(fn)); } static void __init do_initcalls(void) @@ -980,11 +981,11 @@ static void __init do_basic_setup(void) static void __init do_pre_smp_initcalls(void) { - initcall_t *fn; + initcall_entry_t *fn; trace_initcall_level("early"); for (fn = __initcall_start; fn < __initcall0_start; fn++) - do_one_initcall(*fn); + do_one_initcall(initcall_from_entry(fn)); } /* @@ -1001,6 +1002,7 @@ void __init load_default_modules(void) static int run_init_process(const char *init_filename) { argv_init[0] = init_filename; + pr_info("Run %s as init process\n", init_filename); return do_execve(getname_kernel(init_filename), (const char __user *const __user *)argv_init, (const char __user *const __user *)envp_init); |