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-rw-r--r--fs/proc/array.c47
1 files changed, 22 insertions, 25 deletions
diff --git a/fs/proc/array.c b/fs/proc/array.c
index cd3653e4f35c..bd117d065b82 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -157,20 +157,29 @@ static inline void task_state(struct seq_file *m, struct pid_namespace *ns,
157 struct user_namespace *user_ns = seq_user_ns(m); 157 struct user_namespace *user_ns = seq_user_ns(m);
158 struct group_info *group_info; 158 struct group_info *group_info;
159 int g; 159 int g;
160 struct fdtable *fdt = NULL; 160 struct task_struct *tracer;
161 const struct cred *cred; 161 const struct cred *cred;
162 pid_t ppid, tpid; 162 pid_t ppid, tpid = 0, tgid, ngid;
163 unsigned int max_fds = 0;
163 164
164 rcu_read_lock(); 165 rcu_read_lock();
165 ppid = pid_alive(p) ? 166 ppid = pid_alive(p) ?
166 task_tgid_nr_ns(rcu_dereference(p->real_parent), ns) : 0; 167 task_tgid_nr_ns(rcu_dereference(p->real_parent), ns) : 0;
167 tpid = 0; 168
168 if (pid_alive(p)) { 169 tracer = ptrace_parent(p);
169 struct task_struct *tracer = ptrace_parent(p); 170 if (tracer)
170 if (tracer) 171 tpid = task_pid_nr_ns(tracer, ns);
171 tpid = task_pid_nr_ns(tracer, ns); 172
172 } 173 tgid = task_tgid_nr_ns(p, ns);
174 ngid = task_numa_group_id(p);
173 cred = get_task_cred(p); 175 cred = get_task_cred(p);
176
177 task_lock(p);
178 if (p->files)
179 max_fds = files_fdtable(p->files)->max_fds;
180 task_unlock(p);
181 rcu_read_unlock();
182
174 seq_printf(m, 183 seq_printf(m,
175 "State:\t%s\n" 184 "State:\t%s\n"
176 "Tgid:\t%d\n" 185 "Tgid:\t%d\n"
@@ -179,12 +188,10 @@ static inline void task_state(struct seq_file *m, struct pid_namespace *ns,
179 "PPid:\t%d\n" 188 "PPid:\t%d\n"
180 "TracerPid:\t%d\n" 189 "TracerPid:\t%d\n"
181 "Uid:\t%d\t%d\t%d\t%d\n" 190 "Uid:\t%d\t%d\t%d\t%d\n"
182 "Gid:\t%d\t%d\t%d\t%d\n", 191 "Gid:\t%d\t%d\t%d\t%d\n"
192 "FDSize:\t%d\nGroups:\t",
183 get_task_state(p), 193 get_task_state(p),
184 task_tgid_nr_ns(p, ns), 194 tgid, ngid, pid_nr_ns(pid, ns), ppid, tpid,
185 task_numa_group_id(p),
186 pid_nr_ns(pid, ns),
187 ppid, tpid,
188 from_kuid_munged(user_ns, cred->uid), 195 from_kuid_munged(user_ns, cred->uid),
189 from_kuid_munged(user_ns, cred->euid), 196 from_kuid_munged(user_ns, cred->euid),
190 from_kuid_munged(user_ns, cred->suid), 197 from_kuid_munged(user_ns, cred->suid),
@@ -192,20 +199,10 @@ static inline void task_state(struct seq_file *m, struct pid_namespace *ns,
192 from_kgid_munged(user_ns, cred->gid), 199 from_kgid_munged(user_ns, cred->gid),
193 from_kgid_munged(user_ns, cred->egid), 200 from_kgid_munged(user_ns, cred->egid),
194 from_kgid_munged(user_ns, cred->sgid), 201 from_kgid_munged(user_ns, cred->sgid),
195 from_kgid_munged(user_ns, cred->fsgid)); 202 from_kgid_munged(user_ns, cred->fsgid),
196 203 max_fds);
197 task_lock(p);
198 if (p->files)
199 fdt = files_fdtable(p->files);
200 seq_printf(m,
201 "FDSize:\t%d\n"
202 "Groups:\t",
203 fdt ? fdt->max_fds : 0);
204 rcu_read_unlock();
205 204
206 group_info = cred->group_info; 205 group_info = cred->group_info;
207 task_unlock(p);
208
209 for (g = 0; g < group_info->ngroups; g++) 206 for (g = 0; g < group_info->ngroups; g++)
210 seq_printf(m, "%d ", 207 seq_printf(m, "%d ",
211 from_kgid_munged(user_ns, GROUP_AT(group_info, g))); 208 from_kgid_munged(user_ns, GROUP_AT(group_info, g)));