linux-ext4 - Re: [PATCH 06/18] dumpe2fs: add switch to disable checksum verification

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Date:	Sat, 26 Jul 2014 16:58:08 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	"Darrick J. Wong" <darrick.wong@...cle.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH 06/18] dumpe2fs: add switch to disable checksum
 verification

On Fri, Jul 25, 2014 at 05:34:16PM -0700, Darrick J. Wong wrote:
> Add a -n switch to turn off checksum verification.

Instead of adding a -n flag, I wonder if the better thing to do is if
the various functions that might return a checksum error error out, we
print a warning message indicating checksum failure occured, and then
retry with EXT2_FLAG_IGNORE_CSUM_ERRORS.  That is, either retry the
ext2fs_open with the IGNORE_CSUM_ERRORS, or if the file system is
already open, or in EXT2_FLAG_IGNORE_CSUM_ERRORS into fs->flags and
then retry the ext2fs_read_bitmaps() or whatever.

What do you think?

					- Ted
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