diff options
Diffstat (limited to 'fs/reiserfs/xattr.c')
-rw-r--r-- | fs/reiserfs/xattr.c | 17 |
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 */ | 976 | static int xattr_hide_revalidate(struct dentry *dentry, struct nameidata *nd) |
977 | static int | ||
978 | xattr_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 | ||
989 | static const struct dentry_operations xattr_lookup_poison_ops = { | 981 | static const struct dentry_operations xattr_lookup_poison_ops = { |
990 | .d_compare = xattr_lookup_poison, | 982 | .d_revalidate = xattr_hide_revalidate, |
991 | }; | 983 | }; |
992 | 984 | ||
993 | int reiserfs_lookup_privroot(struct super_block *s) | 985 | int 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 |