diff options
| -rw-r--r-- | fs/dcache.c | 17 | ||||
| -rw-r--r-- | include/linux/dcache.h | 1 |
2 files changed, 18 insertions, 0 deletions
diff --git a/fs/dcache.c b/fs/dcache.c index b209d73f9a9..3c6d3113a25 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -1440,6 +1440,23 @@ struct dentry * d_alloc_root(struct inode * root_inode) } EXPORT_SYMBOL(d_alloc_root); +struct dentry *d_make_root(struct inode *root_inode) +{ + struct dentry *res = NULL; + + if (root_inode) { + static const struct qstr name = { .name = "/", .len = 1 }; + + res = __d_alloc(root_inode->i_sb, &name); + if (res) + d_instantiate(res, root_inode); + else + iput(root_inode); + } + return res; +} +EXPORT_SYMBOL(d_make_root); + static struct dentry * __d_find_any_alias(struct inode *inode) { struct dentry *alias; diff --git a/include/linux/dcache.h b/include/linux/dcache.h index ed9f74f6c51..a47bda5f76d 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -249,6 +249,7 @@ extern int d_invalidate(struct dentry *); /* only used at mount-time */ extern struct dentry * d_alloc_root(struct inode *); +extern struct dentry * d_make_root(struct inode *); /* <clickety>-<click> the ramfs-type tree */ extern void d_genocide(struct dentry *); |