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Diffstat (limited to 'fs/reiserfs/xattr.c')
-rw-r--r--fs/reiserfs/xattr.c17
1 files changed, 4 insertions, 13 deletions
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index 4f9586bb7631..28f0a448f3c7 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -973,21 +973,13 @@ int reiserfs_permission(struct inode *inode, int mask)
973 return generic_permission(inode, mask, NULL); 973 return generic_permission(inode, mask, NULL);
974} 974}
975 975
976/* This will catch lookups from the fs root to .reiserfs_priv */ 976static int xattr_hide_revalidate(struct dentry *dentry, struct nameidata *nd)
977static int
978xattr_lookup_poison(struct dentry *dentry, struct qstr *q1, struct qstr *name)
979{ 977{
980 struct dentry *priv_root = REISERFS_SB(dentry->d_sb)->priv_root; 978 return -EPERM;
981 if (container_of(q1, struct dentry, d_name) == priv_root)
982 return -ENOENT;
983 if (q1->len == name->len &&
984 !memcmp(q1->name, name->name, name->len))
985 return 0;
986 return 1;
987} 979}
988 980
989static const struct dentry_operations xattr_lookup_poison_ops = { 981static const struct dentry_operations xattr_lookup_poison_ops = {
990 .d_compare = xattr_lookup_poison, 982 .d_revalidate = xattr_hide_revalidate,
991}; 983};
992 984
993int reiserfs_lookup_privroot(struct super_block *s) 985int reiserfs_lookup_privroot(struct super_block *s)
@@ -1001,8 +993,7 @@ int reiserfs_lookup_privroot(struct super_block *s)
1001 strlen(PRIVROOT_NAME)); 993 strlen(PRIVROOT_NAME));
1002 if (!IS_ERR(dentry)) { 994 if (!IS_ERR(dentry)) {
1003 REISERFS_SB(s)->priv_root = dentry; 995 REISERFS_SB(s)->priv_root = dentry;
1004 if (!reiserfs_expose_privroot(s)) 996 dentry->d_op = &xattr_lookup_poison_ops;
1005 s->s_root->d_op = &xattr_lookup_poison_ops;
1006 if (dentry->d_inode) 997 if (dentry->d_inode)
1007 dentry->d_inode->i_flags |= S_PRIVATE; 998 dentry->d_inode->i_flags |= S_PRIVATE;
1008 } else 999 } else