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authorVivek Goyal <vgoyal@redhat.com>2016-10-14 03:03:36 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2016-10-14 20:00:34 -0400
commit655042cc1406fcec20aa7ffd7d790ada18ac5211 (patch)
tree16f29b5ab2c57f5b712e8d71cfae5b83a58fb672
parentffecee4f2442bb8cb6b34c3335fef4eb50c22fdd (diff)
overlayfs: Fix setting IOP_XATTR flag
ovl_fill_super calls ovl_new_inode to create a root inode for the new superblock before initializing sb->s_xattr. This wrongly causes IOP_XATTR to be cleared in i_opflags of the new inode, causing SELinux to log the following message: SELinux: (dev overlay, type overlay) has no xattr support Fix this by initializing sb->s_xattr and similar fields before calling ovl_new_inode. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--fs/overlayfs/super.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index 7e3f0127fc1a..0ffc8da1aa3f 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -1292,6 +1292,12 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
if (!oe)
goto out_put_cred;
+ sb->s_magic = OVERLAYFS_SUPER_MAGIC;
+ sb->s_op = &ovl_super_operations;
+ sb->s_xattr = ovl_xattr_handlers;
+ sb->s_fs_info = ufs;
+ sb->s_flags |= MS_POSIXACL | MS_NOREMOTELOCK;
+
root_dentry = d_make_root(ovl_new_inode(sb, S_IFDIR));
if (!root_dentry)
goto out_free_oe;
@@ -1315,12 +1321,7 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
ovl_inode_init(d_inode(root_dentry), realinode, !!upperpath.dentry);
ovl_copyattr(realinode, d_inode(root_dentry));
- sb->s_magic = OVERLAYFS_SUPER_MAGIC;
- sb->s_op = &ovl_super_operations;
- sb->s_xattr = ovl_xattr_handlers;
sb->s_root = root_dentry;
- sb->s_fs_info = ufs;
- sb->s_flags |= MS_POSIXACL | MS_NOREMOTELOCK;
return 0;