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-rw-r--r--fs/proc/array.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/proc/array.c b/fs/proc/array.c
index d88d518d30f6..d84eecacbeaf 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -74,6 +74,7 @@
#include <linux/file.h>
#include <linux/times.h>
#include <linux/cpuset.h>
+#include <linux/rcupdate.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
@@ -180,12 +181,14 @@ static inline char * task_state(struct task_struct *p, char *buffer)
p->gid, p->egid, p->sgid, p->fsgid);
read_unlock(&tasklist_lock);
task_lock(p);
+ rcu_read_lock();
if (p->files)
fdt = files_fdtable(p->files);
buffer += sprintf(buffer,
"FDSize:\t%d\n"
"Groups:\t",
fdt ? fdt->max_fds : 0);
+ rcu_read_unlock();
group_info = p->group_info;
get_group_info(group_info);

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