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authorAl Viro <viro@zeniv.linux.org.uk>2012-02-06 12:45:27 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2012-03-20 21:29:32 -0400
commit8de52778798fe39660a8d6b26f290e0c93202761 (patch)
tree56384beb7863c1f338f2b66b509bf58eea5a99c2 /fs/udf/namei.c
parentc16fa4f2ad19908a47c63d8fa436a1178438c7e7 (diff)
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 <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/udf/namei.c')
-rw-r--r--fs/udf/namei.c13
1 files changed, 0 insertions, 13 deletions
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 <linux/crc-itu-t.h>
#include <linux/exportfs.h>
-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,

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