btrfs provides a helpful demonstration of how to export
a global variable via debugfs; however, it is unique among
other debugfs files in that it is world-writable, which causes
some concern to people who are not familiar with its purpose.
Fix it so that it is only user-writable.
Signed-off-by: Eric Sandeen <sand...@redhat.com>
---
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index 4879656..fb84685 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -834,7 +834,7 @@ static int btrfs_init_debugfs(void)
if (!btrfs_debugfs_root_dentry)
return -ENOMEM;
- debugfs_create_u64("test", S_IRUGO | S_IWUGO, btrfs_debugfs_root_dentry,
+ debugfs_create_u64("test", S_IRUGO | S_IWUSR, btrfs_debugfs_root_dentry,
&btrfs_debugfs_test);
#endif
return 0;
--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
