1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 #ifndef _UAPI_LINUX_SCHED_H 3 #define _UAPI_LINUX_SCHED_H 4 5 #include <linux/types.h> 6 7 /* 8 * cloning flags: 9 */ 10 #define CSIGNAL 0x000000ff /* signal mask to be sent at exit */ 11 #define CLONE_VM 0x00000100 /* set if VM shared between processes */ 12 #define CLONE_FS 0x00000200 /* set if fs info shared between processes */ 13 #define CLONE_FILES 0x00000400 /* set if open files shared between processes */ 14 #define CLONE_SIGHAND 0x00000800 /* set if signal handlers and blocked signals shared */ 15 #define CLONE_PIDFD 0x00001000 /* set if a pidfd should be placed in parent */ 16 #define CLONE_PTRACE 0x00002000 /* set if we want to let tracing continue on the child too */ 17 #define CLONE_VFORK 0x00004000 /* set if the parent wants the child to wake it up on mm_release */ 18 #define CLONE_PARENT 0x00008000 /* set if we want to have the same parent as the cloner */ 19 #define CLONE_THREAD 0x00010000 /* Same thread group? */ 20 #define CLONE_NEWNS 0x00020000 /* New mount namespace group */ 21 #define CLONE_SYSVSEM 0x00040000 /* share system V SEM_UNDO semantics */ 22 #define CLONE_SETTLS 0x00080000 /* create a new TLS for the child */ 23 #define CLONE_PARENT_SETTID 0x00100000 /* set the TID in the parent */ 24 #define CLONE_CHILD_CLEARTID 0x00200000 /* clear the TID in the child */ 25 #define CLONE_DETACHED 0x00400000 /* Unused, ignored */ 26 #define CLONE_UNTRACED 0x00800000 /* set if the tracing process can't force CLONE_PTRACE on this clone */ 27 #define CLONE_CHILD_SETTID 0x01000000 /* set the TID in the child */ 28 #define CLONE_NEWCGROUP 0x02000000 /* New cgroup namespace */ 29 #define CLONE_NEWUTS 0x04000000 /* New utsname namespace */ 30 #define CLONE_NEWIPC 0x08000000 /* New ipc namespace */ 31 #define CLONE_NEWUSER 0x10000000 /* New user namespace */ 32 #define CLONE_NEWPID 0x20000000 /* New pid namespace */ 33 #define CLONE_NEWNET 0x40000000 /* New network namespace */ 34 #define CLONE_IO 0x80000000 /* Clone io context */ 35 36 #ifndef __ASSEMBLY__ 37 /** 38 * struct clone_args - arguments for the clone3 syscall 39 * @flags: Flags for the new process as listed above. 40 * All flags are valid except for CSIGNAL and 41 * CLONE_DETACHED. 42 * @pidfd: If CLONE_PIDFD is set, a pidfd will be 43 * returned in this argument. 44 * @child_tid: If CLONE_CHILD_SETTID is set, the TID of the 45 * child process will be returned in the child's 46 * memory. 47 * @parent_tid: If CLONE_PARENT_SETTID is set, the TID of 48 * the child process will be returned in the 49 * parent's memory. 50 * @exit_signal: The exit_signal the parent process will be 51 * sent when the child exits. 52 * @stack: Specify the location of the stack for the 53 * child process. 54 * Note, @stack is expected to point to the 55 * lowest address. The stack direction will be 56 * determined by the kernel and set up 57 * appropriately based on @stack_size. 58 * @stack_size: The size of the stack for the child process. 59 * @tls: If CLONE_SETTLS is set, the tls descriptor 60 * is set to tls. 61 * 62 * The structure is versioned by size and thus extensible. 63 * New struct members must go at the end of the struct and 64 * must be properly 64bit aligned. 65 */ 66 struct clone_args { 67 __aligned_u64 flags; 68 __aligned_u64 pidfd; 69 __aligned_u64 child_tid; 70 __aligned_u64 parent_tid; 71 __aligned_u64 exit_signal; 72 __aligned_u64 stack; 73 __aligned_u64 stack_size; 74 __aligned_u64 tls; 75 }; 76 #endif 77 78 #define CLONE_ARGS_SIZE_VER0 64 /* sizeof first published struct */ 79 80 /* 81 * Scheduling policies 82 */ 83 #define SCHED_NORMAL 0 84 #define SCHED_FIFO 1 85 #define SCHED_RR 2 86 #define SCHED_BATCH 3 87 /* SCHED_ISO: reserved but not implemented yet */ 88 #define SCHED_IDLE 5 89 #define SCHED_DEADLINE 6 90 91 /* Can be ORed in to make sure the process is reverted back to SCHED_NORMAL on fork */ 92 #define SCHED_RESET_ON_FORK 0x40000000 93 94 /* 95 * For the sched_{set,get}attr() calls 96 */ 97 #define SCHED_FLAG_RESET_ON_FORK 0x01 98 #define SCHED_FLAG_RECLAIM 0x02 99 #define SCHED_FLAG_DL_OVERRUN 0x04 100 #define SCHED_FLAG_KEEP_POLICY 0x08 101 #define SCHED_FLAG_KEEP_PARAMS 0x10 102 #define SCHED_FLAG_UTIL_CLAMP_MIN 0x20 103 #define SCHED_FLAG_UTIL_CLAMP_MAX 0x40 104 105 #define SCHED_FLAG_KEEP_ALL (SCHED_FLAG_KEEP_POLICY | \ 106 SCHED_FLAG_KEEP_PARAMS) 107 108 #define SCHED_FLAG_UTIL_CLAMP (SCHED_FLAG_UTIL_CLAMP_MIN | \ 109 SCHED_FLAG_UTIL_CLAMP_MAX) 110 111 #define SCHED_FLAG_ALL (SCHED_FLAG_RESET_ON_FORK | \ 112 SCHED_FLAG_RECLAIM | \ 113 SCHED_FLAG_DL_OVERRUN | \ 114 SCHED_FLAG_KEEP_ALL | \ 115 SCHED_FLAG_UTIL_CLAMP) 116 117 #endif /* _UAPI_LINUX_SCHED_H */ 118