CVE-2024-57839 Revert "readahead: properly shorten readahead when falling back to do_page_cache_ra()"

In the Linux kernel, the following vulnerability has been resolved: Revert "readahead: properly shorten readahead when falling back to dopagecachera" This reverts commit 7c877586da3178974a8a94577b6045a48377ff25. Anders and Philippe have reported that recent kernels occasionally hang when used wit...