vfs: check i_nlink limits in vfs_{mkdir,rename_dir,link}

[firefly-linux-kernel-4.4.55.git] / fs / ext2 / namei.c

diff --git a/fs/ext2/namei.c b/fs/ext2/namei.c
index 080419814bae1abd7fcf585f98f3104c90a68aa1..dffb8653628574390589d9332491afdbd92b5a1d 100644 (file)
--- a/fs/ext2/namei.c
+++ b/fs/ext2/namei.c
@@ -195,9 +195,6 @@ static int ext2_link (struct dentry * old_dentry, struct inode * dir,
        struct inode *inode = old_dentry->d_inode;
        int err;
 
-       if (inode->i_nlink >= EXT2_LINK_MAX)
-               return -EMLINK;
-
        dquot_initialize(dir);
 
        inode->i_ctime = CURRENT_TIME_SEC;
@@ -217,10 +214,7 @@ static int ext2_link (struct dentry * old_dentry, struct inode * dir,
 static int ext2_mkdir(struct inode * dir, struct dentry * dentry, umode_t mode)
 {
        struct inode * inode;
-       int err = -EMLINK;
-
-       if (dir->i_nlink >= EXT2_LINK_MAX)
-               goto out;
+       int err;
 
        dquot_initialize(dir);
 
@@ -346,11 +340,6 @@ static int ext2_rename (struct inode * old_dir, struct dentry * old_dentry,
                        drop_nlink(new_inode);
                inode_dec_link_count(new_inode);
        } else {
-               if (dir_de) {
-                       err = -EMLINK;
-                       if (new_dir->i_nlink >= EXT2_LINK_MAX)
-                               goto out_dir;
-               }
                err = ext2_add_link(new_dentry, old_inode);
                if (err)
                        goto out_dir;