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148 lines
6.1 KiB
148 lines
6.1 KiB
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
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#ifndef _UAPI_LINUX_SCHED_H |
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#define _UAPI_LINUX_SCHED_H |
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#include <linux/types.h> |
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/* |
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* cloning flags: |
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*/ |
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#define CSIGNAL 0x000000ff /* signal mask to be sent at exit */ |
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#define CLONE_VM 0x00000100 /* set if VM shared between processes */ |
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#define CLONE_FS 0x00000200 /* set if fs info shared between processes */ |
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#define CLONE_FILES 0x00000400 /* set if open files shared between processes */ |
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#define CLONE_SIGHAND 0x00000800 /* set if signal handlers and blocked signals shared */ |
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#define CLONE_PIDFD 0x00001000 /* set if a pidfd should be placed in parent */ |
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#define CLONE_PTRACE 0x00002000 /* set if we want to let tracing continue on the child too */ |
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#define CLONE_VFORK 0x00004000 /* set if the parent wants the child to wake it up on mm_release */ |
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#define CLONE_PARENT 0x00008000 /* set if we want to have the same parent as the cloner */ |
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#define CLONE_THREAD 0x00010000 /* Same thread group? */ |
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#define CLONE_NEWNS 0x00020000 /* New mount namespace group */ |
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#define CLONE_SYSVSEM 0x00040000 /* share system V SEM_UNDO semantics */ |
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#define CLONE_SETTLS 0x00080000 /* create a new TLS for the child */ |
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#define CLONE_PARENT_SETTID 0x00100000 /* set the TID in the parent */ |
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#define CLONE_CHILD_CLEARTID 0x00200000 /* clear the TID in the child */ |
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#define CLONE_DETACHED 0x00400000 /* Unused, ignored */ |
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#define CLONE_UNTRACED 0x00800000 /* set if the tracing process can't force CLONE_PTRACE on this clone */ |
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#define CLONE_CHILD_SETTID 0x01000000 /* set the TID in the child */ |
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#define CLONE_NEWCGROUP 0x02000000 /* New cgroup namespace */ |
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#define CLONE_NEWUTS 0x04000000 /* New utsname namespace */ |
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#define CLONE_NEWIPC 0x08000000 /* New ipc namespace */ |
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#define CLONE_NEWUSER 0x10000000 /* New user namespace */ |
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#define CLONE_NEWPID 0x20000000 /* New pid namespace */ |
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#define CLONE_NEWNET 0x40000000 /* New network namespace */ |
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#define CLONE_IO 0x80000000 /* Clone io context */ |
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/* Flags for the clone3() syscall. */ |
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#define CLONE_CLEAR_SIGHAND 0x100000000ULL /* Clear any signal handler and reset to SIG_DFL. */ |
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#define CLONE_INTO_CGROUP 0x200000000ULL /* Clone into a specific cgroup given the right permissions. */ |
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/* |
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* cloning flags intersect with CSIGNAL so can be used with unshare and clone3 |
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* syscalls only: |
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*/ |
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#define CLONE_NEWTIME 0x00000080 /* New time namespace */ |
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#ifndef __ASSEMBLY__ |
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/** |
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* struct clone_args - arguments for the clone3 syscall |
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* @flags: Flags for the new process as listed above. |
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* All flags are valid except for CSIGNAL and |
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* CLONE_DETACHED. |
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* @pidfd: If CLONE_PIDFD is set, a pidfd will be |
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* returned in this argument. |
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* @child_tid: If CLONE_CHILD_SETTID is set, the TID of the |
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* child process will be returned in the child's |
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* memory. |
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* @parent_tid: If CLONE_PARENT_SETTID is set, the TID of |
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* the child process will be returned in the |
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* parent's memory. |
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* @exit_signal: The exit_signal the parent process will be |
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* sent when the child exits. |
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* @stack: Specify the location of the stack for the |
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* child process. |
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* Note, @stack is expected to point to the |
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* lowest address. The stack direction will be |
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* determined by the kernel and set up |
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* appropriately based on @stack_size. |
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* @stack_size: The size of the stack for the child process. |
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* @tls: If CLONE_SETTLS is set, the tls descriptor |
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* is set to tls. |
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* @set_tid: Pointer to an array of type *pid_t. The size |
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* of the array is defined using @set_tid_size. |
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* This array is used to select PIDs/TIDs for |
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* newly created processes. The first element in |
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* this defines the PID in the most nested PID |
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* namespace. Each additional element in the array |
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* defines the PID in the parent PID namespace of |
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* the original PID namespace. If the array has |
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* less entries than the number of currently |
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* nested PID namespaces only the PIDs in the |
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* corresponding namespaces are set. |
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* @set_tid_size: This defines the size of the array referenced |
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* in @set_tid. This cannot be larger than the |
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* kernel's limit of nested PID namespaces. |
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* @cgroup: If CLONE_INTO_CGROUP is specified set this to |
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* a file descriptor for the cgroup. |
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* |
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* The structure is versioned by size and thus extensible. |
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* New struct members must go at the end of the struct and |
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* must be properly 64bit aligned. |
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*/ |
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struct clone_args { |
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__aligned_u64 flags; |
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__aligned_u64 pidfd; |
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__aligned_u64 child_tid; |
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__aligned_u64 parent_tid; |
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__aligned_u64 exit_signal; |
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__aligned_u64 stack; |
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__aligned_u64 stack_size; |
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__aligned_u64 tls; |
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__aligned_u64 set_tid; |
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__aligned_u64 set_tid_size; |
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__aligned_u64 cgroup; |
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}; |
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#endif |
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#define CLONE_ARGS_SIZE_VER0 64 /* sizeof first published struct */ |
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#define CLONE_ARGS_SIZE_VER1 80 /* sizeof second published struct */ |
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#define CLONE_ARGS_SIZE_VER2 88 /* sizeof third published struct */ |
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/* |
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* Scheduling policies |
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*/ |
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#define SCHED_NORMAL 0 |
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#define SCHED_FIFO 1 |
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#define SCHED_RR 2 |
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#define SCHED_BATCH 3 |
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/* SCHED_ISO: reserved but not implemented yet */ |
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#define SCHED_IDLE 5 |
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#define SCHED_DEADLINE 6 |
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/* Can be ORed in to make sure the process is reverted back to SCHED_NORMAL on fork */ |
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#define SCHED_RESET_ON_FORK 0x40000000 |
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/* |
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* For the sched_{set,get}attr() calls |
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*/ |
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#define SCHED_FLAG_RESET_ON_FORK 0x01 |
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#define SCHED_FLAG_RECLAIM 0x02 |
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#define SCHED_FLAG_DL_OVERRUN 0x04 |
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#define SCHED_FLAG_KEEP_POLICY 0x08 |
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#define SCHED_FLAG_KEEP_PARAMS 0x10 |
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#define SCHED_FLAG_UTIL_CLAMP_MIN 0x20 |
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#define SCHED_FLAG_UTIL_CLAMP_MAX 0x40 |
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#define SCHED_FLAG_KEEP_ALL (SCHED_FLAG_KEEP_POLICY | \ |
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SCHED_FLAG_KEEP_PARAMS) |
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#define SCHED_FLAG_UTIL_CLAMP (SCHED_FLAG_UTIL_CLAMP_MIN | \ |
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SCHED_FLAG_UTIL_CLAMP_MAX) |
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#define SCHED_FLAG_ALL (SCHED_FLAG_RESET_ON_FORK | \ |
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SCHED_FLAG_RECLAIM | \ |
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SCHED_FLAG_DL_OVERRUN | \ |
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SCHED_FLAG_KEEP_ALL | \ |
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SCHED_FLAG_UTIL_CLAMP) |
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#endif /* _UAPI_LINUX_SCHED_H */
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