Commit ee611138 authored Jan 23, 2015 by David Sterba Committed by David Sterba May 06, 2016

btrfs: add read-only check to sysfs handler of features



We don't want to trigger the change on a read-only filesystem, similar
to what the label handler does.

Signed-off-by: David Sterba <dsterba@suse.cz>

parent e6c11f9a

fs/btrfs/sysfs.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -120,6 +120,9 @@ static ssize_t btrfs_feature_attr_store(struct kobject *kobj,
		if (!fs_info)
		return -EPERM;

		if (fs_info->sb->s_flags & MS_RDONLY)
		return -EROFS;

		ret = kstrtoul(skip_spaces(buf), 0, &val);
		if (ret)
		return ret;