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-rw-r--r--mm/shmem.c19
1 files changed, 15 insertions, 4 deletions
diff --git a/mm/shmem.c b/mm/shmem.c
index 8b4c198552ba..25cd688bd208 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2865,6 +2865,16 @@ EXPORT_SYMBOL_GPL(shmem_truncate_range);
/* common code */
+static char *shmem_dname(struct dentry *dentry, char *buffer, int buflen)
+{
+ return dynamic_dname(dentry, buffer, buflen, "/%s (deleted)",
+ dentry->d_name.name);
+}
+
+static struct dentry_operations anon_ops = {
+ .d_dname = shmem_dname
+};
+
/**
* shmem_file_setup - get an unlinked file living in tmpfs
* @name: name for dentry (to be seen in /proc/<pid>/maps
@@ -2876,7 +2886,7 @@ struct file *shmem_file_setup(const char *name, loff_t size, unsigned long flags
struct file *res;
struct inode *inode;
struct path path;
- struct dentry *root;
+ struct super_block *sb;
struct qstr this;
if (IS_ERR(shm_mnt))
@@ -2892,14 +2902,15 @@ struct file *shmem_file_setup(const char *name, loff_t size, unsigned long flags
this.name = name;
this.len = strlen(name);
this.hash = 0; /* will go */
- root = shm_mnt->mnt_root;
- path.dentry = d_alloc(root, &this);
+ sb = shm_mnt->mnt_sb;
+ path.dentry = d_alloc_pseudo(sb, &this);
if (!path.dentry)
goto put_memory;
+ d_set_d_op(path.dentry, &anon_ops);
path.mnt = mntget(shm_mnt);
res = ERR_PTR(-ENOSPC);
- inode = shmem_get_inode(root->d_sb, NULL, S_IFREG | S_IRWXUGO, 0, flags);
+ inode = shmem_get_inode(sb, NULL, S_IFREG | S_IRWXUGO, 0, flags);
if (!inode)
goto put_dentry;