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/udf/namei.c | 13 ------------- 1 file changed, 13 deletions(-) (limited to 'fs/udf/namei.c') diff --git a/fs/udf/namei.c b/fs/udf/namei.c index 08bf46edf9c4..38de8f234b94 100644 --- a/fs/udf/namei.c +++ b/fs/udf/namei.c @@ -32,8 +32,6 @@ #include #include -enum { UDF_MAX_LINKS = 0xffff }; - static inline int udf_match(int len1, const unsigned char *name1, int len2, const unsigned char *name2) { @@ -649,10 +647,6 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) struct udf_inode_info *dinfo = UDF_I(dir); struct udf_inode_info *iinfo; - err = -EMLINK; - if (dir->i_nlink >= UDF_MAX_LINKS) - goto out; - err = -EIO; inode = udf_new_inode(dir, S_IFDIR | mode, &err); if (!inode) @@ -1032,9 +1026,6 @@ static int udf_link(struct dentry *old_dentry, struct inode *dir, struct fileIdentDesc cfi, *fi; int err; - if (inode->i_nlink >= UDF_MAX_LINKS) - return -EMLINK; - fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err); if (!fi) { return err; @@ -1126,10 +1117,6 @@ static int udf_rename(struct inode *old_dir, struct dentry *old_dentry, if (udf_get_lb_pblock(old_inode->i_sb, &tloc, 0) != old_dir->i_ino) goto end_rename; - - retval = -EMLINK; - if (!new_inode && new_dir->i_nlink >= UDF_MAX_LINKS) - goto end_rename; } if (!nfi) { nfi = udf_add_entry(new_dir, new_dentry, &nfibh, &ncfi, -- cgit v1.2.3