fs/dirty_pages: fix wrong lock for inode list in super_block

hulk inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4TNJT



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inode list 's_inodes' should be protected by 'sb->s_inode_list_lock'
instead of self-defined lock.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Zhang Yi <yi.zhang@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>