1 files changed, 7 insertions, 3 deletions

diff --git a/mm/shmem.c b/mm/shmem.c
index 6ece1e2fe76e..0905215fb016 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2854,10 +2854,14 @@ static int shmem_link(struct dentry *old_dentry, struct inode *dir, struct dentr
          * No ordinary (disk based) filesystem counts links as inodes;
          * but each new link needs a new dentry, pinning lowmem, and
          * tmpfs dentries cannot be pruned until they are unlinked.
+         * But if an O_TMPFILE file is linked into the tmpfs, the
+         * first link must skip that, to get the accounting right.
          */
-        ret = shmem_reserve_inode(inode->i_sb);
-        if (ret)
-                goto out;
+        if (inode->i_nlink) {
+                ret = shmem_reserve_inode(inode->i_sb);
+                if (ret)
+                        goto out;
+        }
 
         dir->i_size += BOGO_DIRENT_SIZE;
         inode->i_ctime = dir->i_ctime = dir->i_mtime = current_time(inode);