From 8de52778798fe39660a8d6b26f290e0c93202761 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 6 Feb 2012 12:45:27 -0500 Subject: vfs: check i_nlink limits in vfs_{mkdir,rename_dir,link} New field of struct super_block - ->s_max_links. Maximal allowed value of ->i_nlink or 0; in the latter case all checks still need to be done in ->link/->mkdir/->rename instances. Note that this limit applies both to directoris and to non-directories. Signed-off-by: Al Viro --- fs/exofs/namei.c | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) (limited to 'fs/exofs/namei.c') 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; -- cgit v1.2.3-58-ga151