root/include/linux/syscalls.h

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INCLUDED FROM


DEFINITIONS

This source file includes following definitions.
  1. is_syscall_trace_event
  2. is_syscall_trace_event
  3. addr_limit_user_check
  4. ksys_fadvise64_64
  5. ksys_unlink
  6. ksys_rmdir
  7. ksys_mkdir
  8. ksys_symlink
  9. ksys_mknod
  10. ksys_link
  11. ksys_chmod
  12. ksys_access
  13. ksys_chown
  14. ksys_lchown
  15. ksys_ftruncate
  16. ksys_close
  17. ksys_open
  18. ksys_truncate
  19. ksys_personality

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * syscalls.h - Linux syscall interfaces (non-arch-specific)
   4  *
   5  * Copyright (c) 2004 Randy Dunlap
   6  * Copyright (c) 2004 Open Source Development Labs
   7  */
   8 
   9 #ifndef _LINUX_SYSCALLS_H
  10 #define _LINUX_SYSCALLS_H
  11 
  12 struct __aio_sigset;
  13 struct epoll_event;
  14 struct iattr;
  15 struct inode;
  16 struct iocb;
  17 struct io_event;
  18 struct iovec;
  19 struct itimerspec;
  20 struct itimerval;
  21 struct kexec_segment;
  22 struct linux_dirent;
  23 struct linux_dirent64;
  24 struct list_head;
  25 struct mmap_arg_struct;
  26 struct msgbuf;
  27 struct user_msghdr;
  28 struct mmsghdr;
  29 struct msqid_ds;
  30 struct new_utsname;
  31 struct nfsctl_arg;
  32 struct __old_kernel_stat;
  33 struct oldold_utsname;
  34 struct old_utsname;
  35 struct pollfd;
  36 struct rlimit;
  37 struct rlimit64;
  38 struct rusage;
  39 struct sched_param;
  40 struct sched_attr;
  41 struct sel_arg_struct;
  42 struct semaphore;
  43 struct sembuf;
  44 struct shmid_ds;
  45 struct sockaddr;
  46 struct stat;
  47 struct stat64;
  48 struct statfs;
  49 struct statfs64;
  50 struct statx;
  51 struct __sysctl_args;
  52 struct sysinfo;
  53 struct timespec;
  54 struct timeval;
  55 struct __kernel_timex;
  56 struct timezone;
  57 struct tms;
  58 struct utimbuf;
  59 struct mq_attr;
  60 struct compat_stat;
  61 struct old_timeval32;
  62 struct robust_list_head;
  63 struct getcpu_cache;
  64 struct old_linux_dirent;
  65 struct perf_event_attr;
  66 struct file_handle;
  67 struct sigaltstack;
  68 struct rseq;
  69 union bpf_attr;
  70 struct io_uring_params;
  71 struct clone_args;
  72 
  73 #include <linux/types.h>
  74 #include <linux/aio_abi.h>
  75 #include <linux/capability.h>
  76 #include <linux/signal.h>
  77 #include <linux/list.h>
  78 #include <linux/bug.h>
  79 #include <linux/sem.h>
  80 #include <asm/siginfo.h>
  81 #include <linux/unistd.h>
  82 #include <linux/quota.h>
  83 #include <linux/key.h>
  84 #include <linux/personality.h>
  85 #include <trace/syscall.h>
  86 
  87 #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
  88 /*
  89  * It may be useful for an architecture to override the definitions of the
  90  * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a
  91  * different calling convention for syscalls. To allow for that, the prototypes
  92  * for the sys_*() functions below will *not* be included if
  93  * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
  94  */
  95 #include <asm/syscall_wrapper.h>
  96 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
  97 
  98 /*
  99  * __MAP - apply a macro to syscall arguments
 100  * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to
 101  *    m(t1, a1), m(t2, a2), ..., m(tn, an)
 102  * The first argument must be equal to the amount of type/name
 103  * pairs given.  Note that this list of pairs (i.e. the arguments
 104  * of __MAP starting at the third one) is in the same format as
 105  * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n>
 106  */
 107 #define __MAP0(m,...)
 108 #define __MAP1(m,t,a,...) m(t,a)
 109 #define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__)
 110 #define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__)
 111 #define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
 112 #define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
 113 #define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__)
 114 #define __MAP(n,...) __MAP##n(__VA_ARGS__)
 115 
 116 #define __SC_DECL(t, a) t a
 117 #define __TYPE_AS(t, v) __same_type((__force t)0, v)
 118 #define __TYPE_IS_L(t)  (__TYPE_AS(t, 0L))
 119 #define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL))
 120 #define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL))
 121 #define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
 122 #define __SC_CAST(t, a) (__force t) a
 123 #define __SC_ARGS(t, a) a
 124 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
 125 
 126 #ifdef CONFIG_FTRACE_SYSCALLS
 127 #define __SC_STR_ADECL(t, a)    #a
 128 #define __SC_STR_TDECL(t, a)    #t
 129 
 130 extern struct trace_event_class event_class_syscall_enter;
 131 extern struct trace_event_class event_class_syscall_exit;
 132 extern struct trace_event_functions enter_syscall_print_funcs;
 133 extern struct trace_event_functions exit_syscall_print_funcs;
 134 
 135 #define SYSCALL_TRACE_ENTER_EVENT(sname)                                \
 136         static struct syscall_metadata __syscall_meta_##sname;          \
 137         static struct trace_event_call __used                           \
 138           event_enter_##sname = {                                       \
 139                 .class                  = &event_class_syscall_enter,   \
 140                 {                                                       \
 141                         .name                   = "sys_enter"#sname,    \
 142                 },                                                      \
 143                 .event.funcs            = &enter_syscall_print_funcs,   \
 144                 .data                   = (void *)&__syscall_meta_##sname,\
 145                 .flags                  = TRACE_EVENT_FL_CAP_ANY,       \
 146         };                                                              \
 147         static struct trace_event_call __used                           \
 148           __attribute__((section("_ftrace_events")))                    \
 149          *__event_enter_##sname = &event_enter_##sname;
 150 
 151 #define SYSCALL_TRACE_EXIT_EVENT(sname)                                 \
 152         static struct syscall_metadata __syscall_meta_##sname;          \
 153         static struct trace_event_call __used                           \
 154           event_exit_##sname = {                                        \
 155                 .class                  = &event_class_syscall_exit,    \
 156                 {                                                       \
 157                         .name                   = "sys_exit"#sname,     \
 158                 },                                                      \
 159                 .event.funcs            = &exit_syscall_print_funcs,    \
 160                 .data                   = (void *)&__syscall_meta_##sname,\
 161                 .flags                  = TRACE_EVENT_FL_CAP_ANY,       \
 162         };                                                              \
 163         static struct trace_event_call __used                           \
 164           __attribute__((section("_ftrace_events")))                    \
 165         *__event_exit_##sname = &event_exit_##sname;
 166 
 167 #define SYSCALL_METADATA(sname, nb, ...)                        \
 168         static const char *types_##sname[] = {                  \
 169                 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__)            \
 170         };                                                      \
 171         static const char *args_##sname[] = {                   \
 172                 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__)            \
 173         };                                                      \
 174         SYSCALL_TRACE_ENTER_EVENT(sname);                       \
 175         SYSCALL_TRACE_EXIT_EVENT(sname);                        \
 176         static struct syscall_metadata __used                   \
 177           __syscall_meta_##sname = {                            \
 178                 .name           = "sys"#sname,                  \
 179                 .syscall_nr     = -1,   /* Filled in at boot */ \
 180                 .nb_args        = nb,                           \
 181                 .types          = nb ? types_##sname : NULL,    \
 182                 .args           = nb ? args_##sname : NULL,     \
 183                 .enter_event    = &event_enter_##sname,         \
 184                 .exit_event     = &event_exit_##sname,          \
 185                 .enter_fields   = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
 186         };                                                      \
 187         static struct syscall_metadata __used                   \
 188           __attribute__((section("__syscalls_metadata")))       \
 189          *__p_syscall_meta_##sname = &__syscall_meta_##sname;
 190 
 191 static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
 192 {
 193         return tp_event->class == &event_class_syscall_enter ||
 194                tp_event->class == &event_class_syscall_exit;
 195 }
 196 
 197 #else
 198 #define SYSCALL_METADATA(sname, nb, ...)
 199 
 200 static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
 201 {
 202         return 0;
 203 }
 204 #endif
 205 
 206 #ifndef SYSCALL_DEFINE0
 207 #define SYSCALL_DEFINE0(sname)                                  \
 208         SYSCALL_METADATA(_##sname, 0);                          \
 209         asmlinkage long sys_##sname(void);                      \
 210         ALLOW_ERROR_INJECTION(sys_##sname, ERRNO);              \
 211         asmlinkage long sys_##sname(void)
 212 #endif /* SYSCALL_DEFINE0 */
 213 
 214 #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
 215 #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
 216 #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
 217 #define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
 218 #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
 219 #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
 220 
 221 #define SYSCALL_DEFINE_MAXARGS  6
 222 
 223 #define SYSCALL_DEFINEx(x, sname, ...)                          \
 224         SYSCALL_METADATA(sname, x, __VA_ARGS__)                 \
 225         __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
 226 
 227 #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
 228 
 229 /*
 230  * The asmlinkage stub is aliased to a function named __se_sys_*() which
 231  * sign-extends 32-bit ints to longs whenever needed. The actual work is
 232  * done within __do_sys_*().
 233  */
 234 #ifndef __SYSCALL_DEFINEx
 235 #define __SYSCALL_DEFINEx(x, name, ...)                                 \
 236         __diag_push();                                                  \
 237         __diag_ignore(GCC, 8, "-Wattribute-alias",                      \
 238                       "Type aliasing is used to sanitize syscall arguments");\
 239         asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))       \
 240                 __attribute__((alias(__stringify(__se_sys##name))));    \
 241         ALLOW_ERROR_INJECTION(sys##name, ERRNO);                        \
 242         static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
 243         asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
 244         asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__))  \
 245         {                                                               \
 246                 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\
 247                 __MAP(x,__SC_TEST,__VA_ARGS__);                         \
 248                 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__));       \
 249                 return ret;                                             \
 250         }                                                               \
 251         __diag_pop();                                                   \
 252         static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
 253 #endif /* __SYSCALL_DEFINEx */
 254 
 255 /*
 256  * Called before coming back to user-mode. Returning to user-mode with an
 257  * address limit different than USER_DS can allow to overwrite kernel memory.
 258  */
 259 static inline void addr_limit_user_check(void)
 260 {
 261 #ifdef TIF_FSCHECK
 262         if (!test_thread_flag(TIF_FSCHECK))
 263                 return;
 264 #endif
 265 
 266         if (CHECK_DATA_CORRUPTION(!segment_eq(get_fs(), USER_DS),
 267                                   "Invalid address limit on user-mode return"))
 268                 force_sig(SIGKILL);
 269 
 270 #ifdef TIF_FSCHECK
 271         clear_thread_flag(TIF_FSCHECK);
 272 #endif
 273 }
 274 
 275 /*
 276  * These syscall function prototypes are kept in the same order as
 277  * include/uapi/asm-generic/unistd.h. Architecture specific entries go below,
 278  * followed by deprecated or obsolete system calls.
 279  *
 280  * Please note that these prototypes here are only provided for information
 281  * purposes, for static analysis, and for linking from the syscall table.
 282  * These functions should not be called elsewhere from kernel code.
 283  *
 284  * As the syscall calling convention may be different from the default
 285  * for architectures overriding the syscall calling convention, do not
 286  * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
 287  */
 288 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
 289 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx);
 290 asmlinkage long sys_io_destroy(aio_context_t ctx);
 291 asmlinkage long sys_io_submit(aio_context_t, long,
 292                         struct iocb __user * __user *);
 293 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
 294                               struct io_event __user *result);
 295 asmlinkage long sys_io_getevents(aio_context_t ctx_id,
 296                                 long min_nr,
 297                                 long nr,
 298                                 struct io_event __user *events,
 299                                 struct __kernel_timespec __user *timeout);
 300 asmlinkage long sys_io_getevents_time32(__u32 ctx_id,
 301                                 __s32 min_nr,
 302                                 __s32 nr,
 303                                 struct io_event __user *events,
 304                                 struct old_timespec32 __user *timeout);
 305 asmlinkage long sys_io_pgetevents(aio_context_t ctx_id,
 306                                 long min_nr,
 307                                 long nr,
 308                                 struct io_event __user *events,
 309                                 struct __kernel_timespec __user *timeout,
 310                                 const struct __aio_sigset *sig);
 311 asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id,
 312                                 long min_nr,
 313                                 long nr,
 314                                 struct io_event __user *events,
 315                                 struct old_timespec32 __user *timeout,
 316                                 const struct __aio_sigset *sig);
 317 asmlinkage long sys_io_uring_setup(u32 entries,
 318                                 struct io_uring_params __user *p);
 319 asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit,
 320                                 u32 min_complete, u32 flags,
 321                                 const sigset_t __user *sig, size_t sigsz);
 322 asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op,
 323                                 void __user *arg, unsigned int nr_args);
 324 
 325 /* fs/xattr.c */
 326 asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
 327                              const void __user *value, size_t size, int flags);
 328 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
 329                               const void __user *value, size_t size, int flags);
 330 asmlinkage long sys_fsetxattr(int fd, const char __user *name,
 331                               const void __user *value, size_t size, int flags);
 332 asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
 333                              void __user *value, size_t size);
 334 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
 335                               void __user *value, size_t size);
 336 asmlinkage long sys_fgetxattr(int fd, const char __user *name,
 337                               void __user *value, size_t size);
 338 asmlinkage long sys_listxattr(const char __user *path, char __user *list,
 339                               size_t size);
 340 asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
 341                                size_t size);
 342 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
 343 asmlinkage long sys_removexattr(const char __user *path,
 344                                 const char __user *name);
 345 asmlinkage long sys_lremovexattr(const char __user *path,
 346                                  const char __user *name);
 347 asmlinkage long sys_fremovexattr(int fd, const char __user *name);
 348 
 349 /* fs/dcache.c */
 350 asmlinkage long sys_getcwd(char __user *buf, unsigned long size);
 351 
 352 /* fs/cookies.c */
 353 asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len);
 354 
 355 /* fs/eventfd.c */
 356 asmlinkage long sys_eventfd2(unsigned int count, int flags);
 357 
 358 /* fs/eventpoll.c */
 359 asmlinkage long sys_epoll_create1(int flags);
 360 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd,
 361                                 struct epoll_event __user *event);
 362 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events,
 363                                 int maxevents, int timeout,
 364                                 const sigset_t __user *sigmask,
 365                                 size_t sigsetsize);
 366 
 367 /* fs/fcntl.c */
 368 asmlinkage long sys_dup(unsigned int fildes);
 369 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
 370 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
 371 #if BITS_PER_LONG == 32
 372 asmlinkage long sys_fcntl64(unsigned int fd,
 373                                 unsigned int cmd, unsigned long arg);
 374 #endif
 375 
 376 /* fs/inotify_user.c */
 377 asmlinkage long sys_inotify_init1(int flags);
 378 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
 379                                         u32 mask);
 380 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
 381 
 382 /* fs/ioctl.c */
 383 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
 384                                 unsigned long arg);
 385 
 386 /* fs/ioprio.c */
 387 asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
 388 asmlinkage long sys_ioprio_get(int which, int who);
 389 
 390 /* fs/locks.c */
 391 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd);
 392 
 393 /* fs/namei.c */
 394 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
 395                             unsigned dev);
 396 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
 397 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
 398 asmlinkage long sys_symlinkat(const char __user * oldname,
 399                               int newdfd, const char __user * newname);
 400 asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
 401                            int newdfd, const char __user *newname, int flags);
 402 asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
 403                              int newdfd, const char __user * newname);
 404 
 405 /* fs/namespace.c */
 406 asmlinkage long sys_umount(char __user *name, int flags);
 407 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
 408                                 char __user *type, unsigned long flags,
 409                                 void __user *data);
 410 asmlinkage long sys_pivot_root(const char __user *new_root,
 411                                 const char __user *put_old);
 412 
 413 /* fs/nfsctl.c */
 414 
 415 /* fs/open.c */
 416 asmlinkage long sys_statfs(const char __user * path,
 417                                 struct statfs __user *buf);
 418 asmlinkage long sys_statfs64(const char __user *path, size_t sz,
 419                                 struct statfs64 __user *buf);
 420 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
 421 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
 422                                 struct statfs64 __user *buf);
 423 asmlinkage long sys_truncate(const char __user *path, long length);
 424 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
 425 #if BITS_PER_LONG == 32
 426 asmlinkage long sys_truncate64(const char __user *path, loff_t length);
 427 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
 428 #endif
 429 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
 430 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
 431 asmlinkage long sys_chdir(const char __user *filename);
 432 asmlinkage long sys_fchdir(unsigned int fd);
 433 asmlinkage long sys_chroot(const char __user *filename);
 434 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
 435 asmlinkage long sys_fchmodat(int dfd, const char __user * filename,
 436                              umode_t mode);
 437 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
 438                              gid_t group, int flag);
 439 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group);
 440 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
 441                            umode_t mode);
 442 asmlinkage long sys_close(unsigned int fd);
 443 asmlinkage long sys_vhangup(void);
 444 
 445 /* fs/pipe.c */
 446 asmlinkage long sys_pipe2(int __user *fildes, int flags);
 447 
 448 /* fs/quota.c */
 449 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
 450                                 qid_t id, void __user *addr);
 451 
 452 /* fs/readdir.c */
 453 asmlinkage long sys_getdents64(unsigned int fd,
 454                                 struct linux_dirent64 __user *dirent,
 455                                 unsigned int count);
 456 
 457 /* fs/read_write.c */
 458 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
 459                         unsigned long offset_low, loff_t __user *result,
 460                         unsigned int whence);
 461 asmlinkage long sys_lseek(unsigned int fd, off_t offset,
 462                           unsigned int whence);
 463 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
 464 asmlinkage long sys_write(unsigned int fd, const char __user *buf,
 465                           size_t count);
 466 asmlinkage long sys_readv(unsigned long fd,
 467                           const struct iovec __user *vec,
 468                           unsigned long vlen);
 469 asmlinkage long sys_writev(unsigned long fd,
 470                            const struct iovec __user *vec,
 471                            unsigned long vlen);
 472 asmlinkage long sys_pread64(unsigned int fd, char __user *buf,
 473                             size_t count, loff_t pos);
 474 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf,
 475                              size_t count, loff_t pos);
 476 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
 477                            unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
 478 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
 479                             unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
 480 
 481 /* fs/sendfile.c */
 482 asmlinkage long sys_sendfile64(int out_fd, int in_fd,
 483                                loff_t __user *offset, size_t count);
 484 
 485 /* fs/select.c */
 486 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
 487                              fd_set __user *, struct __kernel_timespec __user *,
 488                              void __user *);
 489 asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *,
 490                              fd_set __user *, struct old_timespec32 __user *,
 491                              void __user *);
 492 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
 493                           struct __kernel_timespec __user *, const sigset_t __user *,
 494                           size_t);
 495 asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int,
 496                           struct old_timespec32 __user *, const sigset_t __user *,
 497                           size_t);
 498 
 499 /* fs/signalfd.c */
 500 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
 501 
 502 /* fs/splice.c */
 503 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
 504                              unsigned long nr_segs, unsigned int flags);
 505 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
 506                            int fd_out, loff_t __user *off_out,
 507                            size_t len, unsigned int flags);
 508 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
 509 
 510 /* fs/stat.c */
 511 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
 512                                int bufsiz);
 513 asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
 514                                struct stat __user *statbuf, int flag);
 515 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
 516 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
 517 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
 518 asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
 519                                struct stat64 __user *statbuf, int flag);
 520 #endif
 521 
 522 /* fs/sync.c */
 523 asmlinkage long sys_sync(void);
 524 asmlinkage long sys_fsync(unsigned int fd);
 525 asmlinkage long sys_fdatasync(unsigned int fd);
 526 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags,
 527                                      loff_t offset, loff_t nbytes);
 528 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
 529                                         unsigned int flags);
 530 
 531 /* fs/timerfd.c */
 532 asmlinkage long sys_timerfd_create(int clockid, int flags);
 533 asmlinkage long sys_timerfd_settime(int ufd, int flags,
 534                                     const struct __kernel_itimerspec __user *utmr,
 535                                     struct __kernel_itimerspec __user *otmr);
 536 asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr);
 537 asmlinkage long sys_timerfd_gettime32(int ufd,
 538                                    struct old_itimerspec32 __user *otmr);
 539 asmlinkage long sys_timerfd_settime32(int ufd, int flags,
 540                                    const struct old_itimerspec32 __user *utmr,
 541                                    struct old_itimerspec32 __user *otmr);
 542 
 543 /* fs/utimes.c */
 544 asmlinkage long sys_utimensat(int dfd, const char __user *filename,
 545                                 struct __kernel_timespec __user *utimes,
 546                                 int flags);
 547 asmlinkage long sys_utimensat_time32(unsigned int dfd,
 548                                 const char __user *filename,
 549                                 struct old_timespec32 __user *t, int flags);
 550 
 551 /* kernel/acct.c */
 552 asmlinkage long sys_acct(const char __user *name);
 553 
 554 /* kernel/capability.c */
 555 asmlinkage long sys_capget(cap_user_header_t header,
 556                                 cap_user_data_t dataptr);
 557 asmlinkage long sys_capset(cap_user_header_t header,
 558                                 const cap_user_data_t data);
 559 
 560 /* kernel/exec_domain.c */
 561 asmlinkage long sys_personality(unsigned int personality);
 562 
 563 /* kernel/exit.c */
 564 asmlinkage long sys_exit(int error_code);
 565 asmlinkage long sys_exit_group(int error_code);
 566 asmlinkage long sys_waitid(int which, pid_t pid,
 567                            struct siginfo __user *infop,
 568                            int options, struct rusage __user *ru);
 569 
 570 /* kernel/fork.c */
 571 asmlinkage long sys_set_tid_address(int __user *tidptr);
 572 asmlinkage long sys_unshare(unsigned long unshare_flags);
 573 
 574 /* kernel/futex.c */
 575 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
 576                         struct __kernel_timespec __user *utime, u32 __user *uaddr2,
 577                         u32 val3);
 578 asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val,
 579                         struct old_timespec32 __user *utime, u32 __user *uaddr2,
 580                         u32 val3);
 581 asmlinkage long sys_get_robust_list(int pid,
 582                                     struct robust_list_head __user * __user *head_ptr,
 583                                     size_t __user *len_ptr);
 584 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
 585                                     size_t len);
 586 
 587 /* kernel/hrtimer.c */
 588 asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp,
 589                               struct __kernel_timespec __user *rmtp);
 590 asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp,
 591                                      struct old_timespec32 __user *rmtp);
 592 
 593 /* kernel/itimer.c */
 594 asmlinkage long sys_getitimer(int which, struct itimerval __user *value);
 595 asmlinkage long sys_setitimer(int which,
 596                                 struct itimerval __user *value,
 597                                 struct itimerval __user *ovalue);
 598 
 599 /* kernel/kexec.c */
 600 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
 601                                 struct kexec_segment __user *segments,
 602                                 unsigned long flags);
 603 
 604 /* kernel/module.c */
 605 asmlinkage long sys_init_module(void __user *umod, unsigned long len,
 606                                 const char __user *uargs);
 607 asmlinkage long sys_delete_module(const char __user *name_user,
 608                                 unsigned int flags);
 609 
 610 /* kernel/posix-timers.c */
 611 asmlinkage long sys_timer_create(clockid_t which_clock,
 612                                  struct sigevent __user *timer_event_spec,
 613                                  timer_t __user * created_timer_id);
 614 asmlinkage long sys_timer_gettime(timer_t timer_id,
 615                                 struct __kernel_itimerspec __user *setting);
 616 asmlinkage long sys_timer_getoverrun(timer_t timer_id);
 617 asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
 618                                 const struct __kernel_itimerspec __user *new_setting,
 619                                 struct __kernel_itimerspec __user *old_setting);
 620 asmlinkage long sys_timer_delete(timer_t timer_id);
 621 asmlinkage long sys_clock_settime(clockid_t which_clock,
 622                                 const struct __kernel_timespec __user *tp);
 623 asmlinkage long sys_clock_gettime(clockid_t which_clock,
 624                                 struct __kernel_timespec __user *tp);
 625 asmlinkage long sys_clock_getres(clockid_t which_clock,
 626                                 struct __kernel_timespec __user *tp);
 627 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
 628                                 const struct __kernel_timespec __user *rqtp,
 629                                 struct __kernel_timespec __user *rmtp);
 630 asmlinkage long sys_timer_gettime32(timer_t timer_id,
 631                                  struct old_itimerspec32 __user *setting);
 632 asmlinkage long sys_timer_settime32(timer_t timer_id, int flags,
 633                                          struct old_itimerspec32 __user *new,
 634                                          struct old_itimerspec32 __user *old);
 635 asmlinkage long sys_clock_settime32(clockid_t which_clock,
 636                                 struct old_timespec32 __user *tp);
 637 asmlinkage long sys_clock_gettime32(clockid_t which_clock,
 638                                 struct old_timespec32 __user *tp);
 639 asmlinkage long sys_clock_getres_time32(clockid_t which_clock,
 640                                 struct old_timespec32 __user *tp);
 641 asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags,
 642                                 struct old_timespec32 __user *rqtp,
 643                                 struct old_timespec32 __user *rmtp);
 644 
 645 /* kernel/printk.c */
 646 asmlinkage long sys_syslog(int type, char __user *buf, int len);
 647 
 648 /* kernel/ptrace.c */
 649 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
 650                            unsigned long data);
 651 /* kernel/sched/core.c */
 652 
 653 asmlinkage long sys_sched_setparam(pid_t pid,
 654                                         struct sched_param __user *param);
 655 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
 656                                         struct sched_param __user *param);
 657 asmlinkage long sys_sched_getscheduler(pid_t pid);
 658 asmlinkage long sys_sched_getparam(pid_t pid,
 659                                         struct sched_param __user *param);
 660 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
 661                                         unsigned long __user *user_mask_ptr);
 662 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
 663                                         unsigned long __user *user_mask_ptr);
 664 asmlinkage long sys_sched_yield(void);
 665 asmlinkage long sys_sched_get_priority_max(int policy);
 666 asmlinkage long sys_sched_get_priority_min(int policy);
 667 asmlinkage long sys_sched_rr_get_interval(pid_t pid,
 668                                 struct __kernel_timespec __user *interval);
 669 asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid,
 670                                                  struct old_timespec32 __user *interval);
 671 
 672 /* kernel/signal.c */
 673 asmlinkage long sys_restart_syscall(void);
 674 asmlinkage long sys_kill(pid_t pid, int sig);
 675 asmlinkage long sys_tkill(pid_t pid, int sig);
 676 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig);
 677 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
 678                                 struct sigaltstack __user *uoss);
 679 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
 680 #ifndef CONFIG_ODD_RT_SIGACTION
 681 asmlinkage long sys_rt_sigaction(int,
 682                                  const struct sigaction __user *,
 683                                  struct sigaction __user *,
 684                                  size_t);
 685 #endif
 686 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
 687                                 sigset_t __user *oset, size_t sigsetsize);
 688 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
 689 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
 690                                 siginfo_t __user *uinfo,
 691                                 const struct __kernel_timespec __user *uts,
 692                                 size_t sigsetsize);
 693 asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese,
 694                                 siginfo_t __user *uinfo,
 695                                 const struct old_timespec32 __user *uts,
 696                                 size_t sigsetsize);
 697 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo);
 698 
 699 /* kernel/sys.c */
 700 asmlinkage long sys_setpriority(int which, int who, int niceval);
 701 asmlinkage long sys_getpriority(int which, int who);
 702 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
 703                                 void __user *arg);
 704 asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
 705 asmlinkage long sys_setgid(gid_t gid);
 706 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
 707 asmlinkage long sys_setuid(uid_t uid);
 708 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
 709 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
 710 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
 711 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
 712 asmlinkage long sys_setfsuid(uid_t uid);
 713 asmlinkage long sys_setfsgid(gid_t gid);
 714 asmlinkage long sys_times(struct tms __user *tbuf);
 715 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
 716 asmlinkage long sys_getpgid(pid_t pid);
 717 asmlinkage long sys_getsid(pid_t pid);
 718 asmlinkage long sys_setsid(void);
 719 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);
 720 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);
 721 asmlinkage long sys_newuname(struct new_utsname __user *name);
 722 asmlinkage long sys_sethostname(char __user *name, int len);
 723 asmlinkage long sys_setdomainname(char __user *name, int len);
 724 asmlinkage long sys_getrlimit(unsigned int resource,
 725                                 struct rlimit __user *rlim);
 726 asmlinkage long sys_setrlimit(unsigned int resource,
 727                                 struct rlimit __user *rlim);
 728 asmlinkage long sys_getrusage(int who, struct rusage __user *ru);
 729 asmlinkage long sys_umask(int mask);
 730 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
 731                         unsigned long arg4, unsigned long arg5);
 732 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
 733 
 734 /* kernel/time.c */
 735 asmlinkage long sys_gettimeofday(struct timeval __user *tv,
 736                                 struct timezone __user *tz);
 737 asmlinkage long sys_settimeofday(struct timeval __user *tv,
 738                                 struct timezone __user *tz);
 739 asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p);
 740 asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p);
 741 
 742 /* kernel/timer.c */
 743 asmlinkage long sys_getpid(void);
 744 asmlinkage long sys_getppid(void);
 745 asmlinkage long sys_getuid(void);
 746 asmlinkage long sys_geteuid(void);
 747 asmlinkage long sys_getgid(void);
 748 asmlinkage long sys_getegid(void);
 749 asmlinkage long sys_gettid(void);
 750 asmlinkage long sys_sysinfo(struct sysinfo __user *info);
 751 
 752 /* ipc/mqueue.c */
 753 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
 754 asmlinkage long sys_mq_unlink(const char __user *name);
 755 asmlinkage long sys_mq_timedsend(mqd_t mqdes, const char __user *msg_ptr, size_t msg_len, unsigned int msg_prio, const struct __kernel_timespec __user *abs_timeout);
 756 asmlinkage long sys_mq_timedreceive(mqd_t mqdes, char __user *msg_ptr, size_t msg_len, unsigned int __user *msg_prio, const struct __kernel_timespec __user *abs_timeout);
 757 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
 758 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
 759 asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes,
 760                         char __user *u_msg_ptr,
 761                         unsigned int msg_len, unsigned int __user *u_msg_prio,
 762                         const struct old_timespec32 __user *u_abs_timeout);
 763 asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes,
 764                         const char __user *u_msg_ptr,
 765                         unsigned int msg_len, unsigned int msg_prio,
 766                         const struct old_timespec32 __user *u_abs_timeout);
 767 
 768 /* ipc/msg.c */
 769 asmlinkage long sys_msgget(key_t key, int msgflg);
 770 asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
 771 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
 772 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
 773                                 size_t msgsz, long msgtyp, int msgflg);
 774 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp,
 775                                 size_t msgsz, int msgflg);
 776 
 777 /* ipc/sem.c */
 778 asmlinkage long sys_semget(key_t key, int nsems, int semflg);
 779 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
 780 asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
 781 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
 782                                 unsigned nsops,
 783                                 const struct __kernel_timespec __user *timeout);
 784 asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops,
 785                                 unsigned nsops,
 786                                 const struct old_timespec32 __user *timeout);
 787 asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
 788                                 unsigned nsops);
 789 
 790 /* ipc/shm.c */
 791 asmlinkage long sys_shmget(key_t key, size_t size, int flag);
 792 asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
 793 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
 794 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
 795 asmlinkage long sys_shmdt(char __user *shmaddr);
 796 
 797 /* net/socket.c */
 798 asmlinkage long sys_socket(int, int, int);
 799 asmlinkage long sys_socketpair(int, int, int, int __user *);
 800 asmlinkage long sys_bind(int, struct sockaddr __user *, int);
 801 asmlinkage long sys_listen(int, int);
 802 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
 803 asmlinkage long sys_connect(int, struct sockaddr __user *, int);
 804 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
 805 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
 806 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
 807                                 struct sockaddr __user *, int);
 808 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
 809                                 struct sockaddr __user *, int __user *);
 810 asmlinkage long sys_setsockopt(int fd, int level, int optname,
 811                                 char __user *optval, int optlen);
 812 asmlinkage long sys_getsockopt(int fd, int level, int optname,
 813                                 char __user *optval, int __user *optlen);
 814 asmlinkage long sys_shutdown(int, int);
 815 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
 816 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
 817 
 818 /* mm/filemap.c */
 819 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
 820 
 821 /* mm/nommu.c, also with MMU */
 822 asmlinkage long sys_brk(unsigned long brk);
 823 asmlinkage long sys_munmap(unsigned long addr, size_t len);
 824 asmlinkage long sys_mremap(unsigned long addr,
 825                            unsigned long old_len, unsigned long new_len,
 826                            unsigned long flags, unsigned long new_addr);
 827 
 828 /* security/keys/keyctl.c */
 829 asmlinkage long sys_add_key(const char __user *_type,
 830                             const char __user *_description,
 831                             const void __user *_payload,
 832                             size_t plen,
 833                             key_serial_t destringid);
 834 asmlinkage long sys_request_key(const char __user *_type,
 835                                 const char __user *_description,
 836                                 const char __user *_callout_info,
 837                                 key_serial_t destringid);
 838 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
 839                            unsigned long arg4, unsigned long arg5);
 840 
 841 /* arch/example/kernel/sys_example.c */
 842 #ifdef CONFIG_CLONE_BACKWARDS
 843 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long,
 844                int __user *);
 845 #else
 846 #ifdef CONFIG_CLONE_BACKWARDS3
 847 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
 848                           int __user *, unsigned long);
 849 #else
 850 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
 851                int __user *, unsigned long);
 852 #endif
 853 #endif
 854 
 855 asmlinkage long sys_clone3(struct clone_args __user *uargs, size_t size);
 856 
 857 asmlinkage long sys_execve(const char __user *filename,
 858                 const char __user *const __user *argv,
 859                 const char __user *const __user *envp);
 860 
 861 /* mm/fadvise.c */
 862 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
 863 
 864 /* mm/, CONFIG_MMU only */
 865 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
 866 asmlinkage long sys_swapoff(const char __user *specialfile);
 867 asmlinkage long sys_mprotect(unsigned long start, size_t len,
 868                                 unsigned long prot);
 869 asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
 870 asmlinkage long sys_mlock(unsigned long start, size_t len);
 871 asmlinkage long sys_munlock(unsigned long start, size_t len);
 872 asmlinkage long sys_mlockall(int flags);
 873 asmlinkage long sys_munlockall(void);
 874 asmlinkage long sys_mincore(unsigned long start, size_t len,
 875                                 unsigned char __user * vec);
 876 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
 877 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
 878                         unsigned long prot, unsigned long pgoff,
 879                         unsigned long flags);
 880 asmlinkage long sys_mbind(unsigned long start, unsigned long len,
 881                                 unsigned long mode,
 882                                 const unsigned long __user *nmask,
 883                                 unsigned long maxnode,
 884                                 unsigned flags);
 885 asmlinkage long sys_get_mempolicy(int __user *policy,
 886                                 unsigned long __user *nmask,
 887                                 unsigned long maxnode,
 888                                 unsigned long addr, unsigned long flags);
 889 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
 890                                 unsigned long maxnode);
 891 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
 892                                 const unsigned long __user *from,
 893                                 const unsigned long __user *to);
 894 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
 895                                 const void __user * __user *pages,
 896                                 const int __user *nodes,
 897                                 int __user *status,
 898                                 int flags);
 899 
 900 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t  pid, int sig,
 901                 siginfo_t __user *uinfo);
 902 asmlinkage long sys_perf_event_open(
 903                 struct perf_event_attr __user *attr_uptr,
 904                 pid_t pid, int cpu, int group_fd, unsigned long flags);
 905 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
 906 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
 907                              unsigned int vlen, unsigned flags,
 908                              struct __kernel_timespec __user *timeout);
 909 asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg,
 910                              unsigned int vlen, unsigned flags,
 911                              struct old_timespec32 __user *timeout);
 912 
 913 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
 914                                 int options, struct rusage __user *ru);
 915 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
 916                                 const struct rlimit64 __user *new_rlim,
 917                                 struct rlimit64 __user *old_rlim);
 918 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
 919 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
 920                                   u64 mask, int fd,
 921                                   const char  __user *pathname);
 922 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
 923                                       struct file_handle __user *handle,
 924                                       int __user *mnt_id, int flag);
 925 asmlinkage long sys_open_by_handle_at(int mountdirfd,
 926                                       struct file_handle __user *handle,
 927                                       int flags);
 928 asmlinkage long sys_clock_adjtime(clockid_t which_clock,
 929                                 struct __kernel_timex __user *tx);
 930 asmlinkage long sys_clock_adjtime32(clockid_t which_clock,
 931                                 struct old_timex32 __user *tx);
 932 asmlinkage long sys_syncfs(int fd);
 933 asmlinkage long sys_setns(int fd, int nstype);
 934 asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags);
 935 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
 936                              unsigned int vlen, unsigned flags);
 937 asmlinkage long sys_process_vm_readv(pid_t pid,
 938                                      const struct iovec __user *lvec,
 939                                      unsigned long liovcnt,
 940                                      const struct iovec __user *rvec,
 941                                      unsigned long riovcnt,
 942                                      unsigned long flags);
 943 asmlinkage long sys_process_vm_writev(pid_t pid,
 944                                       const struct iovec __user *lvec,
 945                                       unsigned long liovcnt,
 946                                       const struct iovec __user *rvec,
 947                                       unsigned long riovcnt,
 948                                       unsigned long flags);
 949 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
 950                          unsigned long idx1, unsigned long idx2);
 951 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
 952 asmlinkage long sys_sched_setattr(pid_t pid,
 953                                         struct sched_attr __user *attr,
 954                                         unsigned int flags);
 955 asmlinkage long sys_sched_getattr(pid_t pid,
 956                                         struct sched_attr __user *attr,
 957                                         unsigned int size,
 958                                         unsigned int flags);
 959 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
 960                               int newdfd, const char __user *newname,
 961                               unsigned int flags);
 962 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
 963                             void __user *uargs);
 964 asmlinkage long sys_getrandom(char __user *buf, size_t count,
 965                               unsigned int flags);
 966 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
 967 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
 968 asmlinkage long sys_execveat(int dfd, const char __user *filename,
 969                         const char __user *const __user *argv,
 970                         const char __user *const __user *envp, int flags);
 971 asmlinkage long sys_userfaultfd(int flags);
 972 asmlinkage long sys_membarrier(int cmd, int flags);
 973 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
 974 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
 975                                     int fd_out, loff_t __user *off_out,
 976                                     size_t len, unsigned int flags);
 977 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
 978                             unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
 979                             rwf_t flags);
 980 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
 981                             unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
 982                             rwf_t flags);
 983 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
 984                                   unsigned long prot, int pkey);
 985 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
 986 asmlinkage long sys_pkey_free(int pkey);
 987 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
 988                           unsigned mask, struct statx __user *buffer);
 989 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len,
 990                          int flags, uint32_t sig);
 991 asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags);
 992 asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path,
 993                                int to_dfd, const char __user *to_path,
 994                                unsigned int ms_flags);
 995 asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags);
 996 asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key,
 997                              const void __user *value, int aux);
 998 asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags);
 999 asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags);
1000 asmlinkage long sys_pidfd_send_signal(int pidfd, int sig,
1001                                        siginfo_t __user *info,
1002                                        unsigned int flags);
1003 
1004 /*
1005  * Architecture-specific system calls
1006  */
1007 
1008 /* arch/x86/kernel/ioport.c */
1009 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
1010 
1011 /* pciconfig: alpha, arm, arm64, ia64, sparc */
1012 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn,
1013                                 unsigned long off, unsigned long len,
1014                                 void __user *buf);
1015 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn,
1016                                 unsigned long off, unsigned long len,
1017                                 void __user *buf);
1018 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn);
1019 
1020 /* powerpc */
1021 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
1022                                  __u32 __user *ustatus);
1023 asmlinkage long sys_spu_create(const char __user *name,
1024                 unsigned int flags, umode_t mode, int fd);
1025 
1026 
1027 /*
1028  * Deprecated system calls which are still defined in
1029  * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
1030  */
1031 
1032 /* __ARCH_WANT_SYSCALL_NO_AT */
1033 asmlinkage long sys_open(const char __user *filename,
1034                                 int flags, umode_t mode);
1035 asmlinkage long sys_link(const char __user *oldname,
1036                                 const char __user *newname);
1037 asmlinkage long sys_unlink(const char __user *pathname);
1038 asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
1039                                 unsigned dev);
1040 asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
1041 asmlinkage long sys_chown(const char __user *filename,
1042                                 uid_t user, gid_t group);
1043 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
1044 asmlinkage long sys_rmdir(const char __user *pathname);
1045 asmlinkage long sys_lchown(const char __user *filename,
1046                                 uid_t user, gid_t group);
1047 asmlinkage long sys_access(const char __user *filename, int mode);
1048 asmlinkage long sys_rename(const char __user *oldname,
1049                                 const char __user *newname);
1050 asmlinkage long sys_symlink(const char __user *old, const char __user *new);
1051 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
1052 asmlinkage long sys_stat64(const char __user *filename,
1053                                 struct stat64 __user *statbuf);
1054 asmlinkage long sys_lstat64(const char __user *filename,
1055                                 struct stat64 __user *statbuf);
1056 #endif
1057 
1058 /* __ARCH_WANT_SYSCALL_NO_FLAGS */
1059 asmlinkage long sys_pipe(int __user *fildes);
1060 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
1061 asmlinkage long sys_epoll_create(int size);
1062 asmlinkage long sys_inotify_init(void);
1063 asmlinkage long sys_eventfd(unsigned int count);
1064 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
1065 
1066 /* __ARCH_WANT_SYSCALL_OFF_T */
1067 asmlinkage long sys_sendfile(int out_fd, int in_fd,
1068                              off_t __user *offset, size_t count);
1069 asmlinkage long sys_newstat(const char __user *filename,
1070                                 struct stat __user *statbuf);
1071 asmlinkage long sys_newlstat(const char __user *filename,
1072                                 struct stat __user *statbuf);
1073 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
1074 
1075 /* __ARCH_WANT_SYSCALL_DEPRECATED */
1076 asmlinkage long sys_alarm(unsigned int seconds);
1077 asmlinkage long sys_getpgrp(void);
1078 asmlinkage long sys_pause(void);
1079 asmlinkage long sys_time(time_t __user *tloc);
1080 asmlinkage long sys_time32(old_time32_t __user *tloc);
1081 #ifdef __ARCH_WANT_SYS_UTIME
1082 asmlinkage long sys_utime(char __user *filename,
1083                                 struct utimbuf __user *times);
1084 asmlinkage long sys_utimes(char __user *filename,
1085                                 struct timeval __user *utimes);
1086 asmlinkage long sys_futimesat(int dfd, const char __user *filename,
1087                               struct timeval __user *utimes);
1088 #endif
1089 asmlinkage long sys_futimesat_time32(unsigned int dfd,
1090                                      const char __user *filename,
1091                                      struct old_timeval32 __user *t);
1092 asmlinkage long sys_utime32(const char __user *filename,
1093                                  struct old_utimbuf32 __user *t);
1094 asmlinkage long sys_utimes_time32(const char __user *filename,
1095                                   struct old_timeval32 __user *t);
1096 asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
1097 asmlinkage long sys_getdents(unsigned int fd,
1098                                 struct linux_dirent __user *dirent,
1099                                 unsigned int count);
1100 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
1101                         fd_set __user *exp, struct timeval __user *tvp);
1102 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
1103                                 int timeout);
1104 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
1105                                 int maxevents, int timeout);
1106 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
1107 asmlinkage long sys_vfork(void);
1108 asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
1109 asmlinkage long sys_send(int, void __user *, size_t, unsigned);
1110 asmlinkage long sys_bdflush(int func, long data);
1111 asmlinkage long sys_oldumount(char __user *name);
1112 asmlinkage long sys_uselib(const char __user *library);
1113 asmlinkage long sys_sysctl(struct __sysctl_args __user *args);
1114 asmlinkage long sys_sysfs(int option,
1115                                 unsigned long arg1, unsigned long arg2);
1116 asmlinkage long sys_fork(void);
1117 
1118 /* obsolete: kernel/time/time.c */
1119 asmlinkage long sys_stime(time_t __user *tptr);
1120 asmlinkage long sys_stime32(old_time32_t __user *tptr);
1121 
1122 /* obsolete: kernel/signal.c */
1123 asmlinkage long sys_sigpending(old_sigset_t __user *uset);
1124 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
1125                                 old_sigset_t __user *oset);
1126 #ifdef CONFIG_OLD_SIGSUSPEND
1127 asmlinkage long sys_sigsuspend(old_sigset_t mask);
1128 #endif
1129 
1130 #ifdef CONFIG_OLD_SIGSUSPEND3
1131 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
1132 #endif
1133 
1134 #ifdef CONFIG_OLD_SIGACTION
1135 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
1136                                 struct old_sigaction __user *);
1137 #endif
1138 asmlinkage long sys_sgetmask(void);
1139 asmlinkage long sys_ssetmask(int newmask);
1140 asmlinkage long sys_signal(int sig, __sighandler_t handler);
1141 
1142 /* obsolete: kernel/sched/core.c */
1143 asmlinkage long sys_nice(int increment);
1144 
1145 /* obsolete: kernel/kexec_file.c */
1146 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd,
1147                                     unsigned long cmdline_len,
1148                                     const char __user *cmdline_ptr,
1149                                     unsigned long flags);
1150 
1151 /* obsolete: kernel/exit.c */
1152 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
1153 
1154 /* obsolete: kernel/uid16.c */
1155 #ifdef CONFIG_HAVE_UID16
1156 asmlinkage long sys_chown16(const char __user *filename,
1157                                 old_uid_t user, old_gid_t group);
1158 asmlinkage long sys_lchown16(const char __user *filename,
1159                                 old_uid_t user, old_gid_t group);
1160 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group);
1161 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid);
1162 asmlinkage long sys_setgid16(old_gid_t gid);
1163 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid);
1164 asmlinkage long sys_setuid16(old_uid_t uid);
1165 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid);
1166 asmlinkage long sys_getresuid16(old_uid_t __user *ruid,
1167                                 old_uid_t __user *euid, old_uid_t __user *suid);
1168 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid);
1169 asmlinkage long sys_getresgid16(old_gid_t __user *rgid,
1170                                 old_gid_t __user *egid, old_gid_t __user *sgid);
1171 asmlinkage long sys_setfsuid16(old_uid_t uid);
1172 asmlinkage long sys_setfsgid16(old_gid_t gid);
1173 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist);
1174 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist);
1175 asmlinkage long sys_getuid16(void);
1176 asmlinkage long sys_geteuid16(void);
1177 asmlinkage long sys_getgid16(void);
1178 asmlinkage long sys_getegid16(void);
1179 #endif
1180 
1181 /* obsolete: net/socket.c */
1182 asmlinkage long sys_socketcall(int call, unsigned long __user *args);
1183 
1184 /* obsolete: fs/stat.c */
1185 asmlinkage long sys_stat(const char __user *filename,
1186                         struct __old_kernel_stat __user *statbuf);
1187 asmlinkage long sys_lstat(const char __user *filename,
1188                         struct __old_kernel_stat __user *statbuf);
1189 asmlinkage long sys_fstat(unsigned int fd,
1190                         struct __old_kernel_stat __user *statbuf);
1191 asmlinkage long sys_readlink(const char __user *path,
1192                                 char __user *buf, int bufsiz);
1193 
1194 /* obsolete: fs/select.c */
1195 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg);
1196 
1197 /* obsolete: fs/readdir.c */
1198 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int);
1199 
1200 /* obsolete: kernel/sys.c */
1201 asmlinkage long sys_gethostname(char __user *name, int len);
1202 asmlinkage long sys_uname(struct old_utsname __user *);
1203 asmlinkage long sys_olduname(struct oldold_utsname __user *);
1204 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT
1205 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
1206 #endif
1207 
1208 /* obsolete: ipc */
1209 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
1210                 unsigned long third, void __user *ptr, long fifth);
1211 
1212 /* obsolete: mm/ */
1213 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len,
1214                         unsigned long prot, unsigned long flags,
1215                         unsigned long fd, unsigned long pgoff);
1216 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
1217 
1218 
1219 /*
1220  * Not a real system call, but a placeholder for syscalls which are
1221  * not implemented -- see kernel/sys_ni.c
1222  */
1223 asmlinkage long sys_ni_syscall(void);
1224 
1225 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
1226 
1227 
1228 /*
1229  * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly.
1230  * Instead, use one of the functions which work equivalently, such as
1231  * the ksys_xyzyyz() functions prototyped below.
1232  */
1233 
1234 int ksys_mount(const char __user *dev_name, const char __user *dir_name,
1235                const char __user *type, unsigned long flags, void __user *data);
1236 int ksys_umount(char __user *name, int flags);
1237 int ksys_dup(unsigned int fildes);
1238 int ksys_chroot(const char __user *filename);
1239 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count);
1240 int ksys_chdir(const char __user *filename);
1241 int ksys_fchmod(unsigned int fd, umode_t mode);
1242 int ksys_fchown(unsigned int fd, uid_t user, gid_t group);
1243 int ksys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent,
1244                     unsigned int count);
1245 int ksys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg);
1246 off_t ksys_lseek(unsigned int fd, off_t offset, unsigned int whence);
1247 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count);
1248 void ksys_sync(void);
1249 int ksys_unshare(unsigned long unshare_flags);
1250 int ksys_setsid(void);
1251 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
1252                          unsigned int flags);
1253 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count,
1254                      loff_t pos);
1255 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf,
1256                       size_t count, loff_t pos);
1257 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len);
1258 #ifdef CONFIG_ADVISE_SYSCALLS
1259 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
1260 #else
1261 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len,
1262                                     int advice)
1263 {
1264         return -EINVAL;
1265 }
1266 #endif
1267 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len,
1268                               unsigned long prot, unsigned long flags,
1269                               unsigned long fd, unsigned long pgoff);
1270 ssize_t ksys_readahead(int fd, loff_t offset, size_t count);
1271 int ksys_ipc(unsigned int call, int first, unsigned long second,
1272         unsigned long third, void __user * ptr, long fifth);
1273 int compat_ksys_ipc(u32 call, int first, int second,
1274         u32 third, u32 ptr, u32 fifth);
1275 
1276 /*
1277  * The following kernel syscall equivalents are just wrappers to fs-internal
1278  * functions. Therefore, provide stubs to be inlined at the callsites.
1279  */
1280 extern long do_unlinkat(int dfd, struct filename *name);
1281 
1282 static inline long ksys_unlink(const char __user *pathname)
1283 {
1284         return do_unlinkat(AT_FDCWD, getname(pathname));
1285 }
1286 
1287 extern long do_rmdir(int dfd, const char __user *pathname);
1288 
1289 static inline long ksys_rmdir(const char __user *pathname)
1290 {
1291         return do_rmdir(AT_FDCWD, pathname);
1292 }
1293 
1294 extern long do_mkdirat(int dfd, const char __user *pathname, umode_t mode);
1295 
1296 static inline long ksys_mkdir(const char __user *pathname, umode_t mode)
1297 {
1298         return do_mkdirat(AT_FDCWD, pathname, mode);
1299 }
1300 
1301 extern long do_symlinkat(const char __user *oldname, int newdfd,
1302                          const char __user *newname);
1303 
1304 static inline long ksys_symlink(const char __user *oldname,
1305                                 const char __user *newname)
1306 {
1307         return do_symlinkat(oldname, AT_FDCWD, newname);
1308 }
1309 
1310 extern long do_mknodat(int dfd, const char __user *filename, umode_t mode,
1311                        unsigned int dev);
1312 
1313 static inline long ksys_mknod(const char __user *filename, umode_t mode,
1314                               unsigned int dev)
1315 {
1316         return do_mknodat(AT_FDCWD, filename, mode, dev);
1317 }
1318 
1319 extern int do_linkat(int olddfd, const char __user *oldname, int newdfd,
1320                      const char __user *newname, int flags);
1321 
1322 static inline long ksys_link(const char __user *oldname,
1323                              const char __user *newname)
1324 {
1325         return do_linkat(AT_FDCWD, oldname, AT_FDCWD, newname, 0);
1326 }
1327 
1328 extern int do_fchmodat(int dfd, const char __user *filename, umode_t mode);
1329 
1330 static inline int ksys_chmod(const char __user *filename, umode_t mode)
1331 {
1332         return do_fchmodat(AT_FDCWD, filename, mode);
1333 }
1334 
1335 extern long do_faccessat(int dfd, const char __user *filename, int mode);
1336 
1337 static inline long ksys_access(const char __user *filename, int mode)
1338 {
1339         return do_faccessat(AT_FDCWD, filename, mode);
1340 }
1341 
1342 extern int do_fchownat(int dfd, const char __user *filename, uid_t user,
1343                        gid_t group, int flag);
1344 
1345 static inline long ksys_chown(const char __user *filename, uid_t user,
1346                               gid_t group)
1347 {
1348         return do_fchownat(AT_FDCWD, filename, user, group, 0);
1349 }
1350 
1351 static inline long ksys_lchown(const char __user *filename, uid_t user,
1352                                gid_t group)
1353 {
1354         return do_fchownat(AT_FDCWD, filename, user, group,
1355                              AT_SYMLINK_NOFOLLOW);
1356 }
1357 
1358 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
1359 
1360 static inline long ksys_ftruncate(unsigned int fd, unsigned long length)
1361 {
1362         return do_sys_ftruncate(fd, length, 1);
1363 }
1364 
1365 extern int __close_fd(struct files_struct *files, unsigned int fd);
1366 
1367 /*
1368  * In contrast to sys_close(), this stub does not check whether the syscall
1369  * should or should not be restarted, but returns the raw error codes from
1370  * __close_fd().
1371  */
1372 static inline int ksys_close(unsigned int fd)
1373 {
1374         return __close_fd(current->files, fd);
1375 }
1376 
1377 extern long do_sys_open(int dfd, const char __user *filename, int flags,
1378                         umode_t mode);
1379 
1380 static inline long ksys_open(const char __user *filename, int flags,
1381                              umode_t mode)
1382 {
1383         if (force_o_largefile())
1384                 flags |= O_LARGEFILE;
1385         return do_sys_open(AT_FDCWD, filename, flags, mode);
1386 }
1387 
1388 extern long do_sys_truncate(const char __user *pathname, loff_t length);
1389 
1390 static inline long ksys_truncate(const char __user *pathname, loff_t length)
1391 {
1392         return do_sys_truncate(pathname, length);
1393 }
1394 
1395 static inline unsigned int ksys_personality(unsigned int personality)
1396 {
1397         unsigned int old = current->personality;
1398 
1399         if (personality != 0xffffffff)
1400                 set_personality(personality);
1401 
1402         return old;
1403 }
1404 
1405 /* for __ARCH_WANT_SYS_IPC */
1406 long ksys_semtimedop(int semid, struct sembuf __user *tsops,
1407                      unsigned int nsops,
1408                      const struct __kernel_timespec __user *timeout);
1409 long ksys_semget(key_t key, int nsems, int semflg);
1410 long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
1411 long ksys_msgget(key_t key, int msgflg);
1412 long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
1413 long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1414                  long msgtyp, int msgflg);
1415 long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1416                  int msgflg);
1417 long ksys_shmget(key_t key, size_t size, int shmflg);
1418 long ksys_shmdt(char __user *shmaddr);
1419 long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
1420 long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems,
1421                             unsigned int nsops,
1422                             const struct old_timespec32 __user *timeout);
1423 
1424 #endif

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