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-rw-r--r--fs/proc/base.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 2236f7d3878e..cc578a300a2b 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -2043,7 +2043,7 @@ out:
2043static struct task_struct *first_tgid(int tgid, int nr) 2043static struct task_struct *first_tgid(int tgid, int nr)
2044{ 2044{
2045 struct task_struct *pos = NULL; 2045 struct task_struct *pos = NULL;
2046 read_lock(&tasklist_lock); 2046 rcu_read_lock();
2047 if (tgid && nr) { 2047 if (tgid && nr) {
2048 pos = find_task_by_pid(tgid); 2048 pos = find_task_by_pid(tgid);
2049 if (pos && !thread_group_leader(pos)) 2049 if (pos && !thread_group_leader(pos))
@@ -2069,7 +2069,7 @@ static struct task_struct *first_tgid(int tgid, int nr)
2069 } 2069 }
2070 pos = NULL; 2070 pos = NULL;
2071done: 2071done:
2072 read_unlock(&tasklist_lock); 2072 rcu_read_unlock();
2073 return pos; 2073 return pos;
2074} 2074}
2075 2075
@@ -2082,7 +2082,7 @@ done:
2082static struct task_struct *next_tgid(struct task_struct *start) 2082static struct task_struct *next_tgid(struct task_struct *start)
2083{ 2083{
2084 struct task_struct *pos; 2084 struct task_struct *pos;
2085 read_lock(&tasklist_lock); 2085 rcu_read_lock();
2086 pos = start; 2086 pos = start;
2087 if (pid_alive(start)) 2087 if (pid_alive(start))
2088 pos = next_task(start); 2088 pos = next_task(start);
@@ -2092,7 +2092,7 @@ static struct task_struct *next_tgid(struct task_struct *start)
2092 } 2092 }
2093 pos = NULL; 2093 pos = NULL;
2094done: 2094done:
2095 read_unlock(&tasklist_lock); 2095 rcu_read_unlock();
2096 put_task_struct(start); 2096 put_task_struct(start);
2097 return pos; 2097 return pos;
2098} 2098}