reiserfs: allow exposing privroot w/ xattrs enabled
This patch adds an -oexpose_privroot option to allow access to the privroot.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/reiserfs/dir.c b/fs/reiserfs/dir.c
index 45ee3d3..6d2668f 100644
--- a/fs/reiserfs/dir.c
+++ b/fs/reiserfs/dir.c
@@ -44,13 +44,11 @@
static inline bool is_privroot_deh(struct dentry *dir,
struct reiserfs_de_head *deh)
{
- int ret = 0;
-#ifdef CONFIG_REISERFS_FS_XATTR
struct dentry *privroot = REISERFS_SB(dir->d_sb)->priv_root;
- ret = (dir == dir->d_parent && privroot->d_inode &&
- deh->deh_objectid == INODE_PKEY(privroot->d_inode)->k_objectid);
-#endif
- return ret;
+ if (reiserfs_expose_privroot(dir->d_sb))
+ return 0;
+ return (dir == dir->d_parent && privroot->d_inode &&
+ deh->deh_objectid == INODE_PKEY(privroot->d_inode)->k_objectid);
}
int reiserfs_readdir_dentry(struct dentry *dentry, void *dirent,
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 3567fb9..9dbdcfb 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -898,6 +898,7 @@
{"conv",.setmask = 1 << REISERFS_CONVERT},
{"attrs",.setmask = 1 << REISERFS_ATTRS},
{"noattrs",.clrmask = 1 << REISERFS_ATTRS},
+ {"expose_privroot", .setmask = 1 << REISERFS_EXPOSE_PRIVROOT},
#ifdef CONFIG_REISERFS_FS_XATTR
{"user_xattr",.setmask = 1 << REISERFS_XATTRS_USER},
{"nouser_xattr",.clrmask = 1 << REISERFS_XATTRS_USER},
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index 8e7deb0..f3d47d8 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -981,7 +981,8 @@
strlen(PRIVROOT_NAME));
if (!IS_ERR(dentry)) {
REISERFS_SB(s)->priv_root = dentry;
- s->s_root->d_op = &xattr_lookup_poison_ops;
+ if (!reiserfs_expose_privroot(s))
+ s->s_root->d_op = &xattr_lookup_poison_ops;
if (dentry->d_inode)
dentry->d_inode->i_flags |= S_PRIVATE;
} else