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Documentation: document d_prune op in vfs.txt

Message ID 20190401124907.7345-1-jlayton@kernel.org (mailing list archive)
State New, archived
Headers show
Series Documentation: document d_prune op in vfs.txt | expand

Commit Message

Jeffrey Layton April 1, 2019, 12:49 p.m. UTC 
Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
 Documentation/filesystems/vfs.txt | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index 761c6fd24a53..4f1638e5f95b 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt
@@ -1013,6 +1013,7 @@  struct dentry_operations {
 	int (*d_delete)(const struct dentry *);
 	int (*d_init)(struct dentry *);
 	void (*d_release)(struct dentry *);
+	void (*d_prune)(struct dentry *);
 	void (*d_iput)(struct dentry *, struct inode *);
 	char *(*d_dname)(struct dentry *, char *, int);
 	struct vfsmount *(*d_automount)(struct path *);
@@ -1087,6 +1088,9 @@  struct dentry_operations {
 
   d_release: called when a dentry is really deallocated
 
+  d_prune: called prior to pruning (i.e. unhashing and killing) a hashed
+	dentry from the dcache.
+
   d_iput: called when a dentry loses its inode (just prior to its
 	being deallocated). The default when this is NULL is that the
 	VFS calls iput(). If you define this method, you must call