thread_self.c (1a384eaac265b57961c9696d9177f82eb84319e9) thread_self.c (fceef393a538134f03b778c5d2519e670269342f)
1#include <linux/sched.h>
2#include <linux/slab.h>
3#include <linux/pid_namespace.h>
4#include "internal.h"
5
6/*
7 * /proc/thread_self:
8 */

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

15 char tmp[PROC_NUMBUF + 6 + PROC_NUMBUF];
16 if (!pid)
17 return -ENOENT;
18 sprintf(tmp, "%d/task/%d", tgid, pid);
19 return readlink_copy(buffer, buflen, tmp);
20}
21
22static const char *proc_thread_self_get_link(struct dentry *dentry,
1#include <linux/sched.h>
2#include <linux/slab.h>
3#include <linux/pid_namespace.h>
4#include "internal.h"
5
6/*
7 * /proc/thread_self:
8 */

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

15 char tmp[PROC_NUMBUF + 6 + PROC_NUMBUF];
16 if (!pid)
17 return -ENOENT;
18 sprintf(tmp, "%d/task/%d", tgid, pid);
19 return readlink_copy(buffer, buflen, tmp);
20}
21
22static const char *proc_thread_self_get_link(struct dentry *dentry,
23 struct inode *inode, void **cookie)
23 struct inode *inode,
24 struct delayed_call *done)
24{
25 struct pid_namespace *ns = inode->i_sb->s_fs_info;
26 pid_t tgid = task_tgid_nr_ns(current, ns);
27 pid_t pid = task_pid_nr_ns(current, ns);
28 char *name;
29
30 if (!pid)
31 return ERR_PTR(-ENOENT);
32 name = kmalloc(PROC_NUMBUF + 6 + PROC_NUMBUF,
33 dentry ? GFP_KERNEL : GFP_ATOMIC);
34 if (unlikely(!name))
35 return dentry ? ERR_PTR(-ENOMEM) : ERR_PTR(-ECHILD);
36 sprintf(name, "%d/task/%d", tgid, pid);
25{
26 struct pid_namespace *ns = inode->i_sb->s_fs_info;
27 pid_t tgid = task_tgid_nr_ns(current, ns);
28 pid_t pid = task_pid_nr_ns(current, ns);
29 char *name;
30
31 if (!pid)
32 return ERR_PTR(-ENOENT);
33 name = kmalloc(PROC_NUMBUF + 6 + PROC_NUMBUF,
34 dentry ? GFP_KERNEL : GFP_ATOMIC);
35 if (unlikely(!name))
36 return dentry ? ERR_PTR(-ENOMEM) : ERR_PTR(-ECHILD);
37 sprintf(name, "%d/task/%d", tgid, pid);
37 return *cookie = name;
38 set_delayed_call(done, kfree_link, name);
39 return name;
38}
39
40static const struct inode_operations proc_thread_self_inode_operations = {
41 .readlink = proc_thread_self_readlink,
42 .get_link = proc_thread_self_get_link,
40}
41
42static const struct inode_operations proc_thread_self_inode_operations = {
43 .readlink = proc_thread_self_readlink,
44 .get_link = proc_thread_self_get_link,
43 .put_link = kfree_put_link,
44};
45
46static unsigned thread_self_inum;
47
48int proc_setup_thread_self(struct super_block *s)
49{
50 struct inode *root_inode = d_inode(s->s_root);
51 struct pid_namespace *ns = s->s_fs_info;

--- 34 unchanged lines hidden --- 		45};
46
47static unsigned thread_self_inum;
48
49int proc_setup_thread_self(struct super_block *s)
50{
51 struct inode *root_inode = d_inode(s->s_root);
52 struct pid_namespace *ns = s->s_fs_info;

--- 34 unchanged lines hidden ---