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/proc/self is never going to be invalidated...

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2011-02-16 10:04:50 -05:00
parent 3979491701
commit ae50adcb0a
1 changed files with 0 additions and 30 deletions
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30
fs/proc/base.c
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@ -2620,35 +2620,6 @@ static const struct pid_entry proc_base_stuff[] = {
&proc_self_inode_operations, NULL, {}), &proc_self_inode_operations, NULL, {}),
}; };
/*
* Exceptional case: normally we are not allowed to unhash a busy
* directory. In this case, however, we can do it - no aliasing problems
* due to the way we treat inodes.
*/
static int proc_base_revalidate(struct dentry *dentry, struct nameidata *nd)
{
struct inode *inode;
struct task_struct *task;
if (nd->flags & LOOKUP_RCU)
return -ECHILD;
inode = dentry->d_inode;
task = get_proc_task(inode);
if (task) {
put_task_struct(task);
return 1;
}
d_drop(dentry);
return 0;
}
static const struct dentry_operations proc_base_dentry_operations =
{
.d_revalidate = proc_base_revalidate,
.d_delete = pid_delete_dentry,
};
static struct dentry *proc_base_instantiate(struct inode *dir, static struct dentry *proc_base_instantiate(struct inode *dir,
struct dentry *dentry, struct task_struct *task, const void *ptr) struct dentry *dentry, struct task_struct *task, const void *ptr)
{ {
@ -2685,7 +2656,6 @@ static struct dentry *proc_base_instantiate(struct inode *dir,
if (p->fop) if (p->fop)
inode->i_fop = p->fop; inode->i_fop = p->fop;
ei->op = p->op; ei->op = p->op;
d_set_d_op(dentry, &proc_base_dentry_operations);
d_add(dentry, inode); d_add(dentry, inode);
error = NULL; error = NULL;
out: out: