call_rcu(&dentry->d_u.d_rcu, d_callback);
}
+static void dentry_lru_remove(struct dentry *dentry)
+{
+ if (!list_empty(&dentry->d_lru)) {
+ list_del_init(&dentry->d_lru);
+ dentry_stat.nr_unused--;
+ }
+}
+
/*
* Release the dentry's inode, using the filesystem
* d_iput() operation if defined.
unhash_it:
__d_drop(dentry);
kill_it:
- /* If dentry was on d_lru list
- * delete it from there
- */
- if (!list_empty(&dentry->d_lru)) {
- list_del(&dentry->d_lru);
- dentry_stat.nr_unused--;
- }
+ dentry_lru_remove(dentry);
dentry = d_kill(dentry);
if (dentry)
goto repeat;
static inline struct dentry * __dget_locked(struct dentry *dentry)
{
atomic_inc(&dentry->d_count);
- if (!list_empty(&dentry->d_lru)) {
- dentry_stat.nr_unused--;
- list_del_init(&dentry->d_lru);
- }
+ dentry_lru_remove(dentry);
return dentry;
}
if (dentry->d_op && dentry->d_op->d_delete)
dentry->d_op->d_delete(dentry);
- if (!list_empty(&dentry->d_lru)) {
- list_del(&dentry->d_lru);
- dentry_stat.nr_unused--;
- }
+ dentry_lru_remove(dentry);
__d_drop(dentry);
dentry = d_kill(dentry);
spin_lock(&dcache_lock);
/* detach this root from the system */
spin_lock(&dcache_lock);
- if (!list_empty(&dentry->d_lru)) {
- dentry_stat.nr_unused--;
- list_del_init(&dentry->d_lru);
- }
+ dentry_lru_remove(dentry);
__d_drop(dentry);
spin_unlock(&dcache_lock);
spin_lock(&dcache_lock);
list_for_each_entry(loop, &dentry->d_subdirs,
d_u.d_child) {
- if (!list_empty(&loop->d_lru)) {
- dentry_stat.nr_unused--;
- list_del_init(&loop->d_lru);
- }
-
+ dentry_lru_remove(loop);
__d_drop(loop);
cond_resched_lock(&dcache_lock);
}
struct dentry *dentry = list_entry(tmp, struct dentry, d_u.d_child);
next = tmp->next;
- if (!list_empty(&dentry->d_lru)) {
- dentry_stat.nr_unused--;
- list_del_init(&dentry->d_lru);
- }
+ dentry_lru_remove(dentry);
/*
* move only zero ref count dentries to the end
* of the unused list for prune_dcache
*
* "buflen" should be positive. Caller holds the dcache_lock.
*/
-static char * __d_path( struct dentry *dentry, struct vfsmount *vfsmnt,
- struct dentry *root, struct vfsmount *rootmnt,
- char *buffer, int buflen)
+static char *__d_path(struct dentry *dentry, struct vfsmount *vfsmnt,
+ struct path *root, char *buffer, int buflen)
{
char * end = buffer+buflen;
char * retval;
for (;;) {
struct dentry * parent;
- if (dentry == root && vfsmnt == rootmnt)
+ if (dentry == root->dentry && vfsmnt == root->mnt)
break;
if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) {
/* Global root? */
return ERR_PTR(-ENAMETOOLONG);
}
-/* write full pathname into buffer and return start of pathname */
-char * d_path(struct dentry *dentry, struct vfsmount *vfsmnt,
- char *buf, int buflen)
+/**
+ * d_path - return the path of a dentry
+ * @path: path to report
+ * @buf: buffer to return value in
+ * @buflen: buffer length
+ *
+ * Convert a dentry into an ASCII path name. If the entry has been deleted
+ * the string " (deleted)" is appended. Note that this is ambiguous.
+ *
+ * Returns the buffer or an error code if the path was too long.
+ *
+ * "buflen" should be positive. Caller holds the dcache_lock.
+ */
+char *d_path(struct path *path, char *buf, int buflen)
{
char *res;
struct path root;
* user wants to identify the object in /proc/pid/fd/. The little hack
* below allows us to generate a name for these objects on demand:
*/
- if (dentry->d_op && dentry->d_op->d_dname)
- return dentry->d_op->d_dname(dentry, buf, buflen);
+ if (path->dentry->d_op && path->dentry->d_op->d_dname)
+ return path->dentry->d_op->d_dname(path->dentry, buf, buflen);
read_lock(¤t->fs->lock);
root = current->fs->root;
path_get(¤t->fs->root);
read_unlock(¤t->fs->lock);
spin_lock(&dcache_lock);
- res = __d_path(dentry, vfsmnt, root.dentry, root.mnt, buf, buflen);
+ res = __d_path(path->dentry, path->mnt, &root, buf, buflen);
spin_unlock(&dcache_lock);
path_put(&root);
return res;
unsigned long len;
char * cwd;
- cwd = __d_path(pwd.dentry, pwd.mnt, root.dentry, root.mnt,
- page, PAGE_SIZE);
+ cwd = __d_path(pwd.dentry, pwd.mnt, &root, page, PAGE_SIZE);
spin_unlock(&dcache_lock);
error = PTR_ERR(cwd);