diff options
| author | Miklos Szeredi <mszeredi@redhat.com> | 2016-06-30 08:53:27 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2016-06-30 08:53:27 +0200 |
| commit | e698b8a43659f9ece192fcab215abcadac8f88d7 (patch) | |
| tree | 73bcdb2ecc6a7fe314d380ac2373ff53d5f935ae /include/linux/dcache.h | |
| parent | 2d902671ce1cd98cdc88d78c481889a1b2996101 (diff) | |
vfs: document ->d_real()
Add missing documentation for the d_op->d_real() method and d_real()
helper.
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'include/linux/dcache.h')
| -rw-r--r-- | include/linux/dcache.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/include/linux/dcache.h b/include/linux/dcache.h index 45b22de15ede..14df83609c7f 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -139,7 +139,8 @@ struct dentry_operations { char *(*d_dname)(struct dentry *, char *, int); struct vfsmount *(*d_automount)(struct path *); int (*d_manage)(struct dentry *, bool); - struct dentry *(*d_real)(struct dentry *, const struct inode *, unsigned int); + struct dentry *(*d_real)(struct dentry *, const struct inode *, + unsigned int); } ____cacheline_aligned; /* @@ -554,6 +555,17 @@ static inline struct dentry *d_backing_dentry(struct dentry *upper) return upper; } +/** + * d_real - Return the real dentry + * @dentry: the dentry to query + * @inode: inode to select the dentry from multiple layers (can be NULL) + * @flags: open flags to control copy-up behavior + * + * If dentry is on an union/overlay, then return the underlying, real dentry. + * Otherwise return the dentry itself. + * + * See also: Documentation/filesystems/vfs.txt + */ static inline struct dentry *d_real(struct dentry *dentry, const struct inode *inode, unsigned int flags) |