Re: [PATCH] lib/ext2fs: Validity checks for ext2fs_inode_scan_goto_blockgroup()

Brian Norris
2023-12-01T17:30:59Z

On Fri, Dec 1, 2023 at 8:24 AM Darrick J. Wong <djwong@kernel.org> wrote:
> On Thu, Nov 30, 2023 at 04:01:18PM -0800, Brian Norris wrote:
> > This resolves issues seen in ureadahead, when it uses an old packfile
> > (with mismatching group indices) with a new filesystem.
>
> Say what now? The boot time pre-caching thing Ubuntu used to have?
> https://manpages.ubuntu.com/manpages/trusty/man8/ureadahead.8.html

Sure. ChromeOS still uses it. Steven Rostedt even bothered to do a
talk about it recently:
https://eoss2023.sched.com/event/1LcMw/the-resurrection-of-ureadahead-and-speeding-up-the-boot-process-and-preloading-applications-steven-rostedt-google

Brian