linux-ext4 - Re: [PATCH] e2fsck: no parent lookup in disconnected dir

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Tue,  3 May 2022 00:02:45 -0400
From:   "Theodore Ts'o" <tytso@....edu>
To:     Andreas Dilger <adilger@...mcloud.com>
Cc:     "Theodore Ts'o" <tytso@....edu>, linux-ext4@...r.kernel.org
Subject: Re: [PATCH] e2fsck: no parent lookup in disconnected dir

On Sun, 12 Dec 2021 23:35:30 -0700, Andreas Dilger wrote:
> Don't call into ext2fs_get_pathname() to do a name lookup for a
> disconnected directory, since the directory block traversal in
> pass1 has already scanned all of the leaf blocks and never finds
> the entry, always printing "???".  If the name entry had been
> found earlier, the directory would not be disconnected in pass3.
> 
> Instead, lookup ".." and print the parent name in the prompt, and
> then do not search for the current directory name at all.  This
> avoids a useless full directory scan for each disconnected entry,
> which can potentially be slow if the parent directory is large.
> 
> [...]

Applied, thanks!

[1/1] e2fsck: no parent lookup in disconnected dir
      commit: 6b0e3bd7bd2f2db3c3993c5d91379ad55e60b51e

Best regards,
-- 
Theodore Ts'o <tytso@....edu>