FUSE: Notifying the kernel of deletion.

[deliverable/linux.git] / fs / fuse / dir.c

diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 344577933f620cc1df0e580a762fbea58659b918..bef8c3011d312a4652bf0ff8189494181b03fcc6 100644 (file)
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -868,7 +868,7 @@ int fuse_update_attributes(struct inode *inode, struct kstat *stat,
 }
 
 int fuse_reverse_inval_entry(struct super_block *sb, u64 parent_nodeid,
-                            struct qstr *name)
+                            u64 child_nodeid, struct qstr *name)
 {
        int err = -ENOTDIR;
        struct inode *parent;
@@ -895,8 +895,36 @@ int fuse_reverse_inval_entry(struct super_block *sb, u64 parent_nodeid,
 
        fuse_invalidate_attr(parent);
        fuse_invalidate_entry(entry);
+
+       if (child_nodeid != 0 && entry->d_inode) {
+               mutex_lock(&entry->d_inode->i_mutex);
+               if (get_node_id(entry->d_inode) != child_nodeid) {
+                       err = -ENOENT;
+                       goto badentry;
+               }
+               if (d_mountpoint(entry)) {
+                       err = -EBUSY;
+                       goto badentry;
+               }
+               if (S_ISDIR(entry->d_inode->i_mode)) {
+                       shrink_dcache_parent(entry);
+                       if (!simple_empty(entry)) {
+                               err = -ENOTEMPTY;
+                               goto badentry;
+                       }
+                       entry->d_inode->i_flags |= S_DEAD;
+               }
+               dont_mount(entry);
+               clear_nlink(entry->d_inode);
+               err = 0;
+ badentry:
+               mutex_unlock(&entry->d_inode->i_mutex);
+               if (!err)
+                       d_delete(entry);
+       } else {
+               err = 0;
+       }
        dput(entry);
-       err = 0;
 
  unlock:
        mutex_unlock(&parent->i_mutex);