diff options
-rw-r--r-- | kernel/fork.c | 31 |
1 files changed, 16 insertions, 15 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 984d259e172d..bab34192799b 100644 --- a/kernel/fork.c +++ b/kernel/fork.c | |||
@@ -1040,16 +1040,9 @@ static struct task_struct *copy_process(unsigned long clone_flags, | |||
1040 | if (p->binfmt && !try_module_get(p->binfmt->module)) | 1040 | if (p->binfmt && !try_module_get(p->binfmt->module)) |
1041 | goto bad_fork_cleanup_put_domain; | 1041 | goto bad_fork_cleanup_put_domain; |
1042 | 1042 | ||
1043 | if (pid != &init_struct_pid) { | ||
1044 | pid = alloc_pid(task_active_pid_ns(p)); | ||
1045 | if (!pid) | ||
1046 | goto bad_fork_put_binfmt_module; | ||
1047 | } | ||
1048 | |||
1049 | p->did_exec = 0; | 1043 | p->did_exec = 0; |
1050 | delayacct_tsk_init(p); /* Must remain after dup_task_struct() */ | 1044 | delayacct_tsk_init(p); /* Must remain after dup_task_struct() */ |
1051 | copy_flags(clone_flags, p); | 1045 | copy_flags(clone_flags, p); |
1052 | p->pid = pid_nr(pid); | ||
1053 | retval = -EFAULT; | 1046 | retval = -EFAULT; |
1054 | if (clone_flags & CLONE_PARENT_SETTID) | 1047 | if (clone_flags & CLONE_PARENT_SETTID) |
1055 | if (put_user(p->pid, parent_tidptr)) | 1048 | if (put_user(p->pid, parent_tidptr)) |
@@ -1133,10 +1126,6 @@ static struct task_struct *copy_process(unsigned long clone_flags, | |||
1133 | p->blocked_on = NULL; /* not blocked yet */ | 1126 | p->blocked_on = NULL; /* not blocked yet */ |
1134 | #endif | 1127 | #endif |
1135 | 1128 | ||
1136 | p->tgid = p->pid; | ||
1137 | if (clone_flags & CLONE_THREAD) | ||
1138 | p->tgid = current->tgid; | ||
1139 | |||
1140 | if ((retval = security_task_alloc(p))) | 1129 | if ((retval = security_task_alloc(p))) |
1141 | goto bad_fork_cleanup_policy; | 1130 | goto bad_fork_cleanup_policy; |
1142 | if ((retval = audit_alloc(p))) | 1131 | if ((retval = audit_alloc(p))) |
@@ -1162,6 +1151,18 @@ static struct task_struct *copy_process(unsigned long clone_flags, | |||
1162 | if (retval) | 1151 | if (retval) |
1163 | goto bad_fork_cleanup_namespaces; | 1152 | goto bad_fork_cleanup_namespaces; |
1164 | 1153 | ||
1154 | if (pid != &init_struct_pid) { | ||
1155 | retval = -ENOMEM; | ||
1156 | pid = alloc_pid(task_active_pid_ns(p)); | ||
1157 | if (!pid) | ||
1158 | goto bad_fork_cleanup_namespaces; | ||
1159 | } | ||
1160 | |||
1161 | p->pid = pid_nr(pid); | ||
1162 | p->tgid = p->pid; | ||
1163 | if (clone_flags & CLONE_THREAD) | ||
1164 | p->tgid = current->tgid; | ||
1165 | |||
1165 | p->set_child_tid = (clone_flags & CLONE_CHILD_SETTID) ? child_tidptr : NULL; | 1166 | p->set_child_tid = (clone_flags & CLONE_CHILD_SETTID) ? child_tidptr : NULL; |
1166 | /* | 1167 | /* |
1167 | * Clear TID on mm_release()? | 1168 | * Clear TID on mm_release()? |
@@ -1259,7 +1260,7 @@ static struct task_struct *copy_process(unsigned long clone_flags, | |||
1259 | spin_unlock(¤t->sighand->siglock); | 1260 | spin_unlock(¤t->sighand->siglock); |
1260 | write_unlock_irq(&tasklist_lock); | 1261 | write_unlock_irq(&tasklist_lock); |
1261 | retval = -ERESTARTNOINTR; | 1262 | retval = -ERESTARTNOINTR; |
1262 | goto bad_fork_cleanup_namespaces; | 1263 | goto bad_fork_free_pid; |
1263 | } | 1264 | } |
1264 | 1265 | ||
1265 | if (clone_flags & CLONE_THREAD) { | 1266 | if (clone_flags & CLONE_THREAD) { |
@@ -1308,6 +1309,9 @@ static struct task_struct *copy_process(unsigned long clone_flags, | |||
1308 | cgroup_post_fork(p); | 1309 | cgroup_post_fork(p); |
1309 | return p; | 1310 | return p; |
1310 | 1311 | ||
1312 | bad_fork_free_pid: | ||
1313 | if (pid != &init_struct_pid) | ||
1314 | free_pid(pid); | ||
1311 | bad_fork_cleanup_namespaces: | 1315 | bad_fork_cleanup_namespaces: |
1312 | exit_task_namespaces(p); | 1316 | exit_task_namespaces(p); |
1313 | bad_fork_cleanup_keys: | 1317 | bad_fork_cleanup_keys: |
@@ -1337,9 +1341,6 @@ bad_fork_cleanup_cgroup: | |||
1337 | cgroup_exit(p, cgroup_callbacks_done); | 1341 | cgroup_exit(p, cgroup_callbacks_done); |
1338 | bad_fork_cleanup_delays_binfmt: | 1342 | bad_fork_cleanup_delays_binfmt: |
1339 | delayacct_tsk_free(p); | 1343 | delayacct_tsk_free(p); |
1340 | if (pid != &init_struct_pid) | ||
1341 | free_pid(pid); | ||
1342 | bad_fork_put_binfmt_module: | ||
1343 | if (p->binfmt) | 1344 | if (p->binfmt) |
1344 | module_put(p->binfmt->module); | 1345 | module_put(p->binfmt->module); |
1345 | bad_fork_cleanup_put_domain: | 1346 | bad_fork_cleanup_put_domain: |