root/tools/include/uapi/linux/sched.h

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INCLUDED FROM


   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  * @stack_size:  The size of the stack for the child process.
  55  * @tls:         If CLONE_SETTLS is set, the tls descriptor
  56  *               is set to tls.
  57  *
  58  * The structure is versioned by size and thus extensible.
  59  * New struct members must go at the end of the struct and
  60  * must be properly 64bit aligned.
  61  */
  62 struct clone_args {
  63         __aligned_u64 flags;
  64         __aligned_u64 pidfd;
  65         __aligned_u64 child_tid;
  66         __aligned_u64 parent_tid;
  67         __aligned_u64 exit_signal;
  68         __aligned_u64 stack;
  69         __aligned_u64 stack_size;
  70         __aligned_u64 tls;
  71 };
  72 #endif
  73 
  74 #define CLONE_ARGS_SIZE_VER0 64 /* sizeof first published struct */
  75 
  76 /*
  77  * Scheduling policies
  78  */
  79 #define SCHED_NORMAL            0
  80 #define SCHED_FIFO              1
  81 #define SCHED_RR                2
  82 #define SCHED_BATCH             3
  83 /* SCHED_ISO: reserved but not implemented yet */
  84 #define SCHED_IDLE              5
  85 #define SCHED_DEADLINE          6
  86 
  87 /* Can be ORed in to make sure the process is reverted back to SCHED_NORMAL on fork */
  88 #define SCHED_RESET_ON_FORK     0x40000000
  89 
  90 /*
  91  * For the sched_{set,get}attr() calls
  92  */
  93 #define SCHED_FLAG_RESET_ON_FORK        0x01
  94 #define SCHED_FLAG_RECLAIM              0x02
  95 #define SCHED_FLAG_DL_OVERRUN           0x04
  96 #define SCHED_FLAG_KEEP_POLICY          0x08
  97 #define SCHED_FLAG_KEEP_PARAMS          0x10
  98 #define SCHED_FLAG_UTIL_CLAMP_MIN       0x20
  99 #define SCHED_FLAG_UTIL_CLAMP_MAX       0x40
 100 
 101 #define SCHED_FLAG_KEEP_ALL     (SCHED_FLAG_KEEP_POLICY | \
 102                                  SCHED_FLAG_KEEP_PARAMS)
 103 
 104 #define SCHED_FLAG_UTIL_CLAMP   (SCHED_FLAG_UTIL_CLAMP_MIN | \
 105                                  SCHED_FLAG_UTIL_CLAMP_MAX)
 106 
 107 #define SCHED_FLAG_ALL  (SCHED_FLAG_RESET_ON_FORK       | \
 108                          SCHED_FLAG_RECLAIM             | \
 109                          SCHED_FLAG_DL_OVERRUN          | \
 110                          SCHED_FLAG_KEEP_ALL            | \
 111                          SCHED_FLAG_UTIL_CLAMP)
 112 
 113 #endif /* _UAPI_LINUX_SCHED_H */

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