self.c (ddb5388ffd0ad75d07e7b78181a0b579824ba6f0) self.c (5955102c9984fa081b2d570cfac75c97eecf8f3b)
1#include <linux/sched.h>
2#include <linux/slab.h>
3#include <linux/pid_namespace.h>
4#include "internal.h"
5
6/*
7 * /proc/self:
8 */

--- 36 unchanged lines hidden (view full) ---

45static unsigned self_inum;
46
47int proc_setup_self(struct super_block *s)
48{
49 struct inode *root_inode = d_inode(s->s_root);
50 struct pid_namespace *ns = s->s_fs_info;
51 struct dentry *self;
52
1#include <linux/sched.h>
2#include <linux/slab.h>
3#include <linux/pid_namespace.h>
4#include "internal.h"
5
6/*
7 * /proc/self:
8 */

--- 36 unchanged lines hidden (view full) ---

45static unsigned self_inum;
46
47int proc_setup_self(struct super_block *s)
48{
49 struct inode *root_inode = d_inode(s->s_root);
50 struct pid_namespace *ns = s->s_fs_info;
51 struct dentry *self;
52
53 mutex_lock(&root_inode->i_mutex);
53 inode_lock(root_inode);
54 self = d_alloc_name(s->s_root, "self");
55 if (self) {
56 struct inode *inode = new_inode_pseudo(s);
57 if (inode) {
58 inode->i_ino = self_inum;
59 inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
60 inode->i_mode = S_IFLNK | S_IRWXUGO;
61 inode->i_uid = GLOBAL_ROOT_UID;
62 inode->i_gid = GLOBAL_ROOT_GID;
63 inode->i_op = &proc_self_inode_operations;
64 d_add(self, inode);
65 } else {
66 dput(self);
67 self = ERR_PTR(-ENOMEM);
68 }
69 } else {
70 self = ERR_PTR(-ENOMEM);
71 }
54 self = d_alloc_name(s->s_root, "self");
55 if (self) {
56 struct inode *inode = new_inode_pseudo(s);
57 if (inode) {
58 inode->i_ino = self_inum;
59 inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
60 inode->i_mode = S_IFLNK | S_IRWXUGO;
61 inode->i_uid = GLOBAL_ROOT_UID;
62 inode->i_gid = GLOBAL_ROOT_GID;
63 inode->i_op = &proc_self_inode_operations;
64 d_add(self, inode);
65 } else {
66 dput(self);
67 self = ERR_PTR(-ENOMEM);
68 }
69 } else {
70 self = ERR_PTR(-ENOMEM);
71 }
72 mutex_unlock(&root_inode->i_mutex);
72 inode_unlock(root_inode);
73 if (IS_ERR(self)) {
74 pr_err("proc_fill_super: can't allocate /proc/self\n");
75 return PTR_ERR(self);
76 }
77 ns->proc_self = self;
78 return 0;
79}
80
81void __init proc_self_init(void)
82{
83 proc_alloc_inum(&self_inum);
84}
73 if (IS_ERR(self)) {
74 pr_err("proc_fill_super: can't allocate /proc/self\n");
75 return PTR_ERR(self);
76 }
77 ns->proc_self = self;
78 return 0;
79}
80
81void __init proc_self_init(void)
82{
83 proc_alloc_inum(&self_inum);
84}