3 files changed, 15 insertions, 0 deletions

diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 2e07da9a46fa..fb1657e0fdb8 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -110,6 +110,7 @@ extern int cifs_posix_open(char *full_path, struct inode **pinode,
                                 struct super_block *sb,
                                 int mode, int oflags,
                                 __u32 *poplock, __u16 *pnetfid, int xid);
+void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
                                      FILE_UNIX_BASIC_INFO *info,
                                      struct cifs_sb_info *cifs_sb);
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 86d3c0c82f25..391816b461ca 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -248,6 +248,7 @@ int cifs_posix_open(char *full_path, struct inode **pinode,
 
         /* get new inode and set it up */
         if (*pinode == NULL) {
+                cifs_fill_uniqueid(sb, &fattr);
                 *pinode = cifs_iget(sb, &fattr);
                 if (!*pinode) {
                         rc = -ENOMEM;
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index b0ff2529cb96..62b324f26a56 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -169,6 +169,17 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr)
         cifs_set_ops(inode, fattr->cf_flags & CIFS_FATTR_DFS_REFERRAL);
 }
 
+void
+cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr)
+{
+        struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
+
+        if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)
+                return;
+
+        fattr->cf_uniqueid = iunique(sb, ROOT_I);
+}
+
 /* Fill a cifs_fattr struct with info from FILE_UNIX_BASIC_INFO. */
 void
 cifs_unix_basic_to_fattr(struct cifs_fattr *fattr, FILE_UNIX_BASIC_INFO *info,
@@ -322,6 +333,7 @@ int cifs_get_inode_info_unix(struct inode **pinode,
 
         if (*pinode == NULL) {
                 /* get new inode */
+                cifs_fill_uniqueid(sb, &fattr);
                 *pinode = cifs_iget(sb, &fattr);
                 if (!*pinode)
                         rc = -ENOMEM;
@@ -1197,6 +1209,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
                                 direntry->d_op = &cifs_dentry_ops;
 
                         cifs_unix_basic_to_fattr(&fattr, pInfo, cifs_sb);
+                        cifs_fill_uniqueid(inode->i_sb, &fattr);
                         newinode = cifs_iget(inode->i_sb, &fattr);
                         if (!newinode) {
                                 kfree(pInfo);