mount options: fix autofs4

Add uid= and gid= options to /proc/mounts for autofs4 filesystems.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Acked-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index 7f05d6c..2fdcf5e 100644 (file)
--- a/fs/autofs4/inode.c
+++ b/fs/autofs4/inode.c
@@ -176,11 +176,16 @@ out_kill_sb:
 static int autofs4_show_options(struct seq_file *m, struct vfsmount *mnt)
 {
        struct autofs_sb_info *sbi = autofs4_sbi(mnt->mnt_sb);
+       struct inode *root_inode = mnt->mnt_sb->s_root->d_inode;
 
        if (!sbi)
                return 0;
 
        seq_printf(m, ",fd=%d", sbi->pipefd);
+       if (root_inode->i_uid != 0)
+               seq_printf(m, ",uid=%u", root_inode->i_uid);
+       if (root_inode->i_gid != 0)
+               seq_printf(m, ",gid=%u", root_inode->i_gid);
        seq_printf(m, ",pgrp=%d", sbi->oz_pgrp);
        seq_printf(m, ",timeout=%lu", sbi->exp_timeout/HZ);
        seq_printf(m, ",minproto=%d", sbi->min_proto);