742755a1d8
move_pages() is used to move individual pages of a process. The function can be used to determine the location of pages and to move them onto the desired node. move_pages() returns status information for each page. long move_pages(pid, number_of_pages_to_move, addresses_of_pages[], nodes[] or NULL, status[], flags); The addresses of pages is an array of void * pointing to the pages to be moved. The nodes array contains the node numbers that the pages should be moved to. If a NULL is passed instead of an array then no pages are moved but the status array is updated. The status request may be used to determine the page state before issuing another move_pages() to move pages. The status array will contain the state of all individual page migration attempts when the function terminates. The status array is only valid if move_pages() completed successfullly. Possible page states in status[]: 0..MAX_NUMNODES The page is now on the indicated node. -ENOENT Page is not present -EACCES Page is mapped by multiple processes and can only be moved if MPOL_MF_MOVE_ALL is specified. -EPERM The page has been mlocked by a process/driver and cannot be moved. -EBUSY Page is busy and cannot be moved. Try again later. -EFAULT Invalid address (no VMA or zero page). -ENOMEM Unable to allocate memory on target node. -EIO Unable to write back page. The page must be written back in order to move it since the page is dirty and the filesystem does not provide a migration function that would allow the moving of dirty pages. -EINVAL A dirty page cannot be moved. The filesystem does not provide a migration function and has no ability to write back pages. The flags parameter indicates what types of pages to move: MPOL_MF_MOVE Move pages that are only mapped by the process. MPOL_MF_MOVE_ALL Also move pages that are mapped by multiple processes. Requires sufficient capabilities. Possible return codes from move_pages() -ENOENT No pages found that would require moving. All pages are either already on the target node, not present, had an invalid address or could not be moved because they were mapped by multiple processes. -EINVAL Flags other than MPOL_MF_MOVE(_ALL) specified or an attempt to migrate pages in a kernel thread. -EPERM MPOL_MF_MOVE_ALL specified without sufficient priviledges. or an attempt to move a process belonging to another user. -EACCES One of the target nodes is not allowed by the current cpuset. -ENODEV One of the target nodes is not online. -ESRCH Process does not exist. -E2BIG Too many pages to move. -ENOMEM Not enough memory to allocate control array. -EFAULT Parameters could not be accessed. A test program for move_pages() may be found with the patches on ftp.kernel.org:/pub/linux/kernel/people/christoph/pmig/patches-2.6.17-rc4-mm3 From: Christoph Lameter <clameter@sgi.com> Detailed results for sys_move_pages() Pass a pointer to an integer to get_new_page() that may be used to indicate where the completion status of a migration operation should be placed. This allows sys_move_pags() to report back exactly what happened to each page. Wish there would be a better way to do this. Looks a bit hacky. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Hugh Dickins <hugh@veritas.com> Cc: Jes Sorensen <jes@trained-monkey.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Lee Schermerhorn <lee.schermerhorn@hp.com> Cc: Andi Kleen <ak@muc.de> Cc: Michael Kerrisk <mtk-manpages@gmx.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
425 lines
11 KiB
C
425 lines
11 KiB
C
#ifndef _ASM_IA64_UNISTD_H
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#define _ASM_IA64_UNISTD_H
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/*
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* IA-64 Linux syscall numbers and inline-functions.
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*
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* Copyright (C) 1998-2005 Hewlett-Packard Co
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* David Mosberger-Tang <davidm@hpl.hp.com>
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*/
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#include <asm/break.h>
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#define __BREAK_SYSCALL __IA64_BREAK_SYSCALL
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#define __NR_ni_syscall 1024
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#define __NR_exit 1025
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#define __NR_read 1026
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#define __NR_write 1027
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#define __NR_open 1028
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#define __NR_close 1029
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#define __NR_creat 1030
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#define __NR_link 1031
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#define __NR_unlink 1032
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#define __NR_execve 1033
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#define __NR_chdir 1034
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#define __NR_fchdir 1035
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#define __NR_utimes 1036
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#define __NR_mknod 1037
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#define __NR_chmod 1038
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#define __NR_chown 1039
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#define __NR_lseek 1040
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#define __NR_getpid 1041
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#define __NR_getppid 1042
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#define __NR_mount 1043
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#define __NR_umount 1044
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#define __NR_setuid 1045
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#define __NR_getuid 1046
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#define __NR_geteuid 1047
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#define __NR_ptrace 1048
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#define __NR_access 1049
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#define __NR_sync 1050
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#define __NR_fsync 1051
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#define __NR_fdatasync 1052
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#define __NR_kill 1053
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#define __NR_rename 1054
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#define __NR_mkdir 1055
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#define __NR_rmdir 1056
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#define __NR_dup 1057
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#define __NR_pipe 1058
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#define __NR_times 1059
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#define __NR_brk 1060
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#define __NR_setgid 1061
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#define __NR_getgid 1062
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#define __NR_getegid 1063
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#define __NR_acct 1064
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#define __NR_ioctl 1065
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#define __NR_fcntl 1066
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#define __NR_umask 1067
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#define __NR_chroot 1068
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#define __NR_ustat 1069
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#define __NR_dup2 1070
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#define __NR_setreuid 1071
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#define __NR_setregid 1072
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#define __NR_getresuid 1073
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#define __NR_setresuid 1074
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#define __NR_getresgid 1075
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#define __NR_setresgid 1076
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#define __NR_getgroups 1077
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#define __NR_setgroups 1078
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#define __NR_getpgid 1079
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#define __NR_setpgid 1080
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#define __NR_setsid 1081
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#define __NR_getsid 1082
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#define __NR_sethostname 1083
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#define __NR_setrlimit 1084
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#define __NR_getrlimit 1085
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#define __NR_getrusage 1086
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#define __NR_gettimeofday 1087
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#define __NR_settimeofday 1088
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#define __NR_select 1089
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#define __NR_poll 1090
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#define __NR_symlink 1091
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#define __NR_readlink 1092
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#define __NR_uselib 1093
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#define __NR_swapon 1094
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#define __NR_swapoff 1095
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#define __NR_reboot 1096
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#define __NR_truncate 1097
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#define __NR_ftruncate 1098
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#define __NR_fchmod 1099
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#define __NR_fchown 1100
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#define __NR_getpriority 1101
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#define __NR_setpriority 1102
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#define __NR_statfs 1103
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#define __NR_fstatfs 1104
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#define __NR_gettid 1105
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#define __NR_semget 1106
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#define __NR_semop 1107
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#define __NR_semctl 1108
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#define __NR_msgget 1109
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#define __NR_msgsnd 1110
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#define __NR_msgrcv 1111
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#define __NR_msgctl 1112
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#define __NR_shmget 1113
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#define __NR_shmat 1114
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#define __NR_shmdt 1115
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#define __NR_shmctl 1116
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/* also known as klogctl() in GNU libc: */
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#define __NR_syslog 1117
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#define __NR_setitimer 1118
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#define __NR_getitimer 1119
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/* 1120 was __NR_old_stat */
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/* 1121 was __NR_old_lstat */
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/* 1122 was __NR_old_fstat */
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#define __NR_vhangup 1123
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#define __NR_lchown 1124
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#define __NR_remap_file_pages 1125
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#define __NR_wait4 1126
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#define __NR_sysinfo 1127
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#define __NR_clone 1128
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#define __NR_setdomainname 1129
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#define __NR_uname 1130
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#define __NR_adjtimex 1131
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/* 1132 was __NR_create_module */
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#define __NR_init_module 1133
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#define __NR_delete_module 1134
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/* 1135 was __NR_get_kernel_syms */
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/* 1136 was __NR_query_module */
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#define __NR_quotactl 1137
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#define __NR_bdflush 1138
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#define __NR_sysfs 1139
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#define __NR_personality 1140
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#define __NR_afs_syscall 1141
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#define __NR_setfsuid 1142
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#define __NR_setfsgid 1143
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#define __NR_getdents 1144
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#define __NR_flock 1145
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#define __NR_readv 1146
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#define __NR_writev 1147
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#define __NR_pread64 1148
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#define __NR_pwrite64 1149
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#define __NR__sysctl 1150
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#define __NR_mmap 1151
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#define __NR_munmap 1152
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#define __NR_mlock 1153
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#define __NR_mlockall 1154
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#define __NR_mprotect 1155
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#define __NR_mremap 1156
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#define __NR_msync 1157
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#define __NR_munlock 1158
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#define __NR_munlockall 1159
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#define __NR_sched_getparam 1160
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#define __NR_sched_setparam 1161
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#define __NR_sched_getscheduler 1162
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#define __NR_sched_setscheduler 1163
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#define __NR_sched_yield 1164
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#define __NR_sched_get_priority_max 1165
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#define __NR_sched_get_priority_min 1166
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#define __NR_sched_rr_get_interval 1167
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#define __NR_nanosleep 1168
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#define __NR_nfsservctl 1169
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#define __NR_prctl 1170
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/* 1171 is reserved for backwards compatibility with old __NR_getpagesize */
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#define __NR_mmap2 1172
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#define __NR_pciconfig_read 1173
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#define __NR_pciconfig_write 1174
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#define __NR_perfmonctl 1175
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#define __NR_sigaltstack 1176
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#define __NR_rt_sigaction 1177
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#define __NR_rt_sigpending 1178
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#define __NR_rt_sigprocmask 1179
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#define __NR_rt_sigqueueinfo 1180
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#define __NR_rt_sigreturn 1181
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#define __NR_rt_sigsuspend 1182
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#define __NR_rt_sigtimedwait 1183
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#define __NR_getcwd 1184
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#define __NR_capget 1185
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#define __NR_capset 1186
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#define __NR_sendfile 1187
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#define __NR_getpmsg 1188
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#define __NR_putpmsg 1189
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#define __NR_socket 1190
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#define __NR_bind 1191
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#define __NR_connect 1192
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#define __NR_listen 1193
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#define __NR_accept 1194
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#define __NR_getsockname 1195
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#define __NR_getpeername 1196
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#define __NR_socketpair 1197
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#define __NR_send 1198
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#define __NR_sendto 1199
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#define __NR_recv 1200
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#define __NR_recvfrom 1201
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#define __NR_shutdown 1202
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#define __NR_setsockopt 1203
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#define __NR_getsockopt 1204
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#define __NR_sendmsg 1205
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#define __NR_recvmsg 1206
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#define __NR_pivot_root 1207
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#define __NR_mincore 1208
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#define __NR_madvise 1209
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#define __NR_stat 1210
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#define __NR_lstat 1211
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#define __NR_fstat 1212
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#define __NR_clone2 1213
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#define __NR_getdents64 1214
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#define __NR_getunwind 1215
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#define __NR_readahead 1216
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#define __NR_setxattr 1217
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#define __NR_lsetxattr 1218
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#define __NR_fsetxattr 1219
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#define __NR_getxattr 1220
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#define __NR_lgetxattr 1221
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#define __NR_fgetxattr 1222
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#define __NR_listxattr 1223
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#define __NR_llistxattr 1224
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#define __NR_flistxattr 1225
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#define __NR_removexattr 1226
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#define __NR_lremovexattr 1227
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#define __NR_fremovexattr 1228
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#define __NR_tkill 1229
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#define __NR_futex 1230
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#define __NR_sched_setaffinity 1231
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#define __NR_sched_getaffinity 1232
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#define __NR_set_tid_address 1233
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#define __NR_fadvise64 1234
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#define __NR_tgkill 1235
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#define __NR_exit_group 1236
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#define __NR_lookup_dcookie 1237
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#define __NR_io_setup 1238
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#define __NR_io_destroy 1239
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#define __NR_io_getevents 1240
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#define __NR_io_submit 1241
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#define __NR_io_cancel 1242
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#define __NR_epoll_create 1243
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#define __NR_epoll_ctl 1244
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#define __NR_epoll_wait 1245
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#define __NR_restart_syscall 1246
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#define __NR_semtimedop 1247
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#define __NR_timer_create 1248
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#define __NR_timer_settime 1249
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#define __NR_timer_gettime 1250
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#define __NR_timer_getoverrun 1251
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#define __NR_timer_delete 1252
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#define __NR_clock_settime 1253
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#define __NR_clock_gettime 1254
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#define __NR_clock_getres 1255
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#define __NR_clock_nanosleep 1256
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#define __NR_fstatfs64 1257
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#define __NR_statfs64 1258
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#define __NR_mbind 1259
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#define __NR_get_mempolicy 1260
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#define __NR_set_mempolicy 1261
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#define __NR_mq_open 1262
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#define __NR_mq_unlink 1263
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#define __NR_mq_timedsend 1264
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#define __NR_mq_timedreceive 1265
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#define __NR_mq_notify 1266
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#define __NR_mq_getsetattr 1267
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#define __NR_kexec_load 1268
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#define __NR_vserver 1269
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#define __NR_waitid 1270
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#define __NR_add_key 1271
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#define __NR_request_key 1272
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#define __NR_keyctl 1273
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#define __NR_ioprio_set 1274
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#define __NR_ioprio_get 1275
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#define __NR_move_pages 1276
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#define __NR_inotify_init 1277
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#define __NR_inotify_add_watch 1278
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#define __NR_inotify_rm_watch 1279
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#define __NR_migrate_pages 1280
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#define __NR_openat 1281
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#define __NR_mkdirat 1282
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#define __NR_mknodat 1283
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#define __NR_fchownat 1284
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#define __NR_futimesat 1285
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#define __NR_newfstatat 1286
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#define __NR_unlinkat 1287
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#define __NR_renameat 1288
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#define __NR_linkat 1289
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#define __NR_symlinkat 1290
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#define __NR_readlinkat 1291
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#define __NR_fchmodat 1292
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#define __NR_faccessat 1293
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/* 1294, 1295 reserved for pselect/ppoll */
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#define __NR_unshare 1296
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#define __NR_splice 1297
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#define __NR_set_robust_list 1298
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#define __NR_get_robust_list 1299
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#define __NR_sync_file_range 1300
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#define __NR_tee 1301
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#define __NR_vmsplice 1302
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#ifdef __KERNEL__
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#define NR_syscalls 279 /* length of syscall table */
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#define __ARCH_WANT_SYS_RT_SIGACTION
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#ifdef CONFIG_IA32_SUPPORT
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# define __ARCH_WANT_SYS_FADVISE64
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# define __ARCH_WANT_SYS_GETPGRP
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# define __ARCH_WANT_SYS_LLSEEK
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# define __ARCH_WANT_SYS_NICE
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# define __ARCH_WANT_SYS_OLD_GETRLIMIT
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# define __ARCH_WANT_SYS_OLDUMOUNT
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# define __ARCH_WANT_SYS_SIGPENDING
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# define __ARCH_WANT_SYS_SIGPROCMASK
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# define __ARCH_WANT_COMPAT_SYS_TIME
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#endif
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#if !defined(__ASSEMBLY__) && !defined(ASSEMBLER)
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#include <linux/types.h>
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#include <linux/linkage.h>
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#include <linux/compiler.h>
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extern long __ia64_syscall (long a0, long a1, long a2, long a3, long a4, long nr);
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#ifdef __KERNEL_SYSCALLS__
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#include <linux/compiler.h>
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#include <linux/string.h>
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#include <linux/signal.h>
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#include <asm/ptrace.h>
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#include <linux/stringify.h>
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#include <linux/syscalls.h>
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static inline long
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open (const char * name, int mode, int flags)
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{
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return sys_open(name, mode, flags);
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}
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static inline long
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dup (int fd)
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{
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return sys_dup(fd);
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}
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static inline long
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close (int fd)
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{
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return sys_close(fd);
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}
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static inline off_t
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lseek (int fd, off_t off, int whence)
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{
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return sys_lseek(fd, off, whence);
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}
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static inline void
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_exit (int value)
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{
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sys_exit(value);
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}
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#define exit(x) _exit(x)
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static inline long
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write (int fd, const char * buf, size_t nr)
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{
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return sys_write(fd, buf, nr);
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}
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static inline long
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read (int fd, char * buf, size_t nr)
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{
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return sys_read(fd, buf, nr);
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}
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static inline long
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setsid (void)
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{
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return sys_setsid();
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}
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static inline pid_t
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waitpid (int pid, int * wait_stat, int flags)
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{
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return sys_wait4(pid, wait_stat, flags, NULL);
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}
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extern int execve (const char *filename, char *const av[], char *const ep[]);
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extern pid_t clone (unsigned long flags, void *sp);
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#endif /* __KERNEL_SYSCALLS__ */
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asmlinkage unsigned long sys_mmap(
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unsigned long addr, unsigned long len,
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int prot, int flags,
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int fd, long off);
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asmlinkage unsigned long sys_mmap2(
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unsigned long addr, unsigned long len,
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int prot, int flags,
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int fd, long pgoff);
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struct pt_regs;
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struct sigaction;
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long sys_execve(char __user *filename, char __user * __user *argv,
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char __user * __user *envp, struct pt_regs *regs);
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asmlinkage long sys_pipe(void);
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asmlinkage long sys_rt_sigaction(int sig,
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const struct sigaction __user *act,
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struct sigaction __user *oact,
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size_t sigsetsize);
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/*
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* "Conditional" syscalls
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*
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* Note, this macro can only be used in the file which defines sys_ni_syscall, i.e., in
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* kernel/sys_ni.c. This version causes warnings because the declaration isn't a
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* proper prototype, but we can't use __typeof__ either, because not all cond_syscall()
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* declarations have prototypes at the moment.
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*/
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#define cond_syscall(x) asmlinkage long x (void) __attribute__((weak,alias("sys_ni_syscall")))
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#endif /* !__ASSEMBLY__ */
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#endif /* __KERNEL__ */
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#endif /* _ASM_IA64_UNISTD_H */
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