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fs/proc/task_nommu.c: change maps_open() to use __seq_open_private()

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Cleanup and preparation. maps_open() can use __seq_open_private()
like proc_maps_open() does.

[akpm@linux-foundation.org: deuglify]
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Oleg Nesterov 2014-10-09 15:25:45 -07:00 committed by Linus Torvalds
parent 557c2d8a73
commit ce34fddb5b
1 changed files with 6 additions and 13 deletions
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19
fs/proc/task_nommu.c
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@ -269,20 +269,13 @@ static int maps_open(struct inode *inode, struct file *file,
const struct seq_operations *ops)
{
struct proc_maps_private *priv;
int ret = -ENOMEM;
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (priv) {
priv->pid = proc_pid(inode);
ret = seq_open(file, ops);
if (!ret) {
struct seq_file *m = file->private_data;
m->private = priv;
} else {
kfree(priv);
}
}
return ret;
priv = __seq_open_private(file, ops, sizeof(struct proc_maps_private));
if (!priv)
return -ENOMEM;
priv->pid = proc_pid(inode);
return 0;
}
static int pid_maps_open(struct inode *inode, struct file *file)