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-rw-r--r--fs/anon_inodes.c35
1 files changed, 16 insertions, 19 deletions
diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c
index 2ca7a7c..9f0bf13 100644
--- a/fs/anon_inodes.c
+++ b/fs/anon_inodes.c
@@ -35,14 +35,13 @@ static int anon_inodefs_get_sb(struct file_system_type *fs_type, int flags,
mnt);
}
-static int anon_inodefs_delete_dentry(struct dentry *dentry)
+/*
+ * anon_inodefs_dname() is called from d_path().
+ */
+static char *anon_inodefs_dname(struct dentry *dentry, char *buffer, int buflen)
{
- /*
- * We faked vfs to believe the dentry was hashed when we created it.
- * Now we restore the flag so that dput() will work correctly.
- */
- dentry->d_flags |= DCACHE_UNHASHED;
- return 1;
+ return dynamic_dname(dentry, buffer, buflen, "anon_inode:%s",
+ dentry->d_name.name);
}
static struct file_system_type anon_inode_fs_type = {
@@ -51,7 +50,7 @@ static struct file_system_type anon_inode_fs_type = {
.kill_sb = kill_anon_super,
};
static const struct dentry_operations anon_inodefs_dentry_operations = {
- .d_delete = anon_inodefs_delete_dentry,
+ .d_dname = anon_inodefs_dname,
};
/*
@@ -88,7 +87,7 @@ struct file *anon_inode_getfile(const char *name,
void *priv, int flags)
{
struct qstr this;
- struct dentry *dentry;
+ struct path path;
struct file *file;
int error;
@@ -106,10 +105,11 @@ struct file *anon_inode_getfile(const char *name,
this.name = name;
this.len = strlen(name);
this.hash = 0;
- dentry = d_alloc(anon_inode_mnt->mnt_sb->s_root, &this);
- if (!dentry)
+ path.dentry = d_alloc(anon_inode_mnt->mnt_sb->s_root, &this);
+ if (!path.dentry)
goto err_module;
+ path.mnt = mntget(anon_inode_mnt);
/*
* We know the anon_inode inode count is always greater than zero,
* so we can avoid doing an igrab() and we can use an open-coded
@@ -117,27 +117,24 @@ struct file *anon_inode_getfile(const char *name,
*/
atomic_inc(&anon_inode_inode->i_count);
- dentry->d_op = &anon_inodefs_dentry_operations;
- /* Do not publish this dentry inside the global dentry hash table */
- dentry->d_flags &= ~DCACHE_UNHASHED;
- d_instantiate(dentry, anon_inode_inode);
+ path.dentry->d_op = &anon_inodefs_dentry_operations;
+ d_instantiate(path.dentry, anon_inode_inode);
error = -ENFILE;
- file = alloc_file(anon_inode_mnt, dentry,
- FMODE_READ | FMODE_WRITE, fops);
+ file = alloc_file(&path, OPEN_FMODE(flags), fops);
if (!file)
goto err_dput;
file->f_mapping = anon_inode_inode->i_mapping;
file->f_pos = 0;
- file->f_flags = O_RDWR | (flags & O_NONBLOCK);
+ file->f_flags = flags & (O_ACCMODE | O_NONBLOCK);
file->f_version = 0;
file->private_data = priv;
return file;
err_dput:
- dput(dentry);
+ path_put(&path);
err_module:
module_put(fops->owner);
return ERR_PTR(error);
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