3 files changed, 9 insertions, 19 deletions

diff --git a/fs/exofs/dir.c b/fs/exofs/dir.c
index 80405836ba6e..c61e62ac231c 100644
--- a/fs/exofs/dir.c
+++ b/fs/exofs/dir.c
@@ -597,7 +597,7 @@ int exofs_make_empty(struct inode *inode, struct inode *parent)
 		goto fail;
 	}
 
-	kaddr = kmap_atomic(page, KM_USER0);
+	kaddr = kmap_atomic(page);
 	de = (struct exofs_dir_entry *)kaddr;
 	de->name_len = 1;
 	de->rec_len = cpu_to_le16(EXOFS_DIR_REC_LEN(1));
@@ -611,7 +611,7 @@ int exofs_make_empty(struct inode *inode, struct inode *parent)
 	de->inode_no = cpu_to_le64(parent->i_ino);
 	memcpy(de->name, PARENT_DIR, sizeof(PARENT_DIR));
 	exofs_set_de_type(de, inode);
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 	err = exofs_commit_chunk(page, 0, chunk_size);
 fail:
 	page_cache_release(page);
diff --git a/fs/exofs/namei.c b/fs/exofs/namei.c
index 9dbf0c301030..fc7161d6bf6b 100644
--- a/fs/exofs/namei.c
+++ b/fs/exofs/namei.c
@@ -143,9 +143,6 @@ static int exofs_link(struct dentry *old_dentry, struct inode *dir,
 {
 	struct inode *inode = old_dentry->d_inode;
 
-	if (inode->i_nlink >= EXOFS_LINK_MAX)
-		return -EMLINK;
-
 	inode->i_ctime = CURRENT_TIME;
 	inode_inc_link_count(inode);
 	ihold(inode);
@@ -156,10 +153,7 @@ static int exofs_link(struct dentry *old_dentry, struct inode *dir,
 static int exofs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
 	struct inode *inode;
-	int err = -EMLINK;
-
-	if (dir->i_nlink >= EXOFS_LINK_MAX)
-		goto out;
+	int err;
 
 	inode_inc_link_count(dir);
 
@@ -275,11 +269,6 @@ static int exofs_rename(struct inode *old_dir, struct dentry *old_dentry,
 		if (err)
 			goto out_dir;
 	} else {
-		if (dir_de) {
-			err = -EMLINK;
-			if (new_dir->i_nlink >= EXOFS_LINK_MAX)
-				goto out_dir;
-		}
 		err = exofs_add_link(new_dentry, old_inode);
 		if (err)
 			goto out_dir;
diff --git a/fs/exofs/super.c b/fs/exofs/super.c
index d22cd168c6ee..735ca06430ac 100644
--- a/fs/exofs/super.c
+++ b/fs/exofs/super.c
@@ -389,7 +389,7 @@ static int exofs_sync_fs(struct super_block *sb, int wait)
 	ios->length = offsetof(struct exofs_fscb, s_dev_table_oid);
 	memset(fscb, 0, ios->length);
 	fscb->s_nextid = cpu_to_le64(sbi->s_nextid);
-	fscb->s_numfiles = cpu_to_le32(sbi->s_numfiles);
+	fscb->s_numfiles = cpu_to_le64(sbi->s_numfiles);
 	fscb->s_magic = cpu_to_le16(sb->s_magic);
 	fscb->s_newfs = 0;
 	fscb->s_version = EXOFS_FSCB_VER;
@@ -529,7 +529,8 @@ static int exofs_devs_2_odi(struct exofs_dt_device_info *dt_dev,
 			     struct osd_dev_info *odi)
 {
 	odi->systemid_len = le32_to_cpu(dt_dev->systemid_len);
-	memcpy(odi->systemid, dt_dev->systemid, odi->systemid_len);
+	if (likely(odi->systemid_len))
+		memcpy(odi->systemid, dt_dev->systemid, OSD_SYSTEMID_LEN);
 
 	odi->osdname_len = le32_to_cpu(dt_dev->osdname_len);
 	odi->osdname = dt_dev->osdname;
@@ -565,7 +566,7 @@ int __alloc_dev_table(struct exofs_sb_info *sbi, unsigned numdevs,
 
 	aoded = kzalloc(sizeof(*aoded), GFP_KERNEL);
 	if (unlikely(!aoded)) {
-		EXOFS_ERR("ERROR: faild allocating Device array[%d]\n",
+		EXOFS_ERR("ERROR: failed allocating Device array[%d]\n",
 			  numdevs);
 		return -ENOMEM;
 	}
@@ -754,6 +755,7 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent)
 	sb->s_blocksize = EXOFS_BLKSIZE;
 	sb->s_blocksize_bits = EXOFS_BLKSHIFT;
 	sb->s_maxbytes = MAX_LFS_FILESIZE;
+	sb->s_max_links = EXOFS_LINK_MAX;
 	atomic_set(&sbi->s_curr_pending, 0);
 	sb->s_bdev = NULL;
 	sb->s_dev = 0;
@@ -818,9 +820,8 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent)
 		ret = PTR_ERR(root);
 		goto free_sbi;
 	}
-	sb->s_root = d_alloc_root(root);
+	sb->s_root = d_make_root(root);
 	if (!sb->s_root) {
-		iput(root);
 		EXOFS_ERR("ERROR: get root inode failed\n");
 		ret = -ENOMEM;
 		goto free_sbi;