switch alloc_file() to passing struct path
... and have the caller grab both mnt and dentry; kill
leak in infiniband, while we are at it.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 87a1258..6bd4152 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -922,7 +922,8 @@
int error = -ENOMEM;
struct file *file;
struct inode *inode;
- struct dentry *dentry, *root;
+ struct path path;
+ struct dentry *root;
struct qstr quick_string;
*user = NULL;
@@ -944,10 +945,11 @@
quick_string.name = name;
quick_string.len = strlen(quick_string.name);
quick_string.hash = 0;
- dentry = d_alloc(root, &quick_string);
- if (!dentry)
+ path.dentry = d_alloc(root, &quick_string);
+ if (!path.dentry)
goto out_shm_unlock;
+ path.mnt = mntget(hugetlbfs_vfsmount);
error = -ENOSPC;
inode = hugetlbfs_get_inode(root->d_sb, current_fsuid(),
current_fsgid(), S_IFREG | S_IRWXUGO, 0);
@@ -960,13 +962,12 @@
acctflag))
goto out_inode;
- d_instantiate(dentry, inode);
+ d_instantiate(path.dentry, inode);
inode->i_size = size;
inode->i_nlink = 0;
error = -ENFILE;
- file = alloc_file(hugetlbfs_vfsmount, dentry,
- FMODE_WRITE | FMODE_READ,
+ file = alloc_file(&path, FMODE_WRITE | FMODE_READ,
&hugetlbfs_file_operations);
if (!file)
goto out_dentry; /* inode is already attached */
@@ -977,7 +978,7 @@
out_inode:
iput(inode);
out_dentry:
- dput(dentry);
+ path_put(&path);
out_shm_unlock:
if (*user) {
user_shm_unlock(size, *user);