linux-ext4 - Re: [PATCH] FLEX

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Message-ID: <20070911072717.1b5fc7a8@gara>
Date:	Tue, 11 Sep 2007 07:27:17 -0500
From:	"Jose R. Santos" <jrs@...ibm.com>
To:	"Andreas Dilger" <adilger@...sterfs.com>
Cc:	"ext4 development" <linux-ext4@...r.kernel.org>
Subject: Re: [PATCH] FLEX_BG Kernel support.

On Tue, 11 Sep 2007 00:04:43 -0600
"Andreas Dilger" <adilger@...sterfs.com> wrote:

> On 9/10/07, Jose R. Santos <jrs@...ibm.com> wrote:
> > @@ -1254,7 +1254,8 @@ static int ext4_check_descriptors (struct super_block * sb)
> >
> >         for (i = 0; i < sbi->s_groups_count; i++)
> >         {
> > -               if (i == sbi->s_groups_count - 1)
> > +               if (i == sbi->s_groups_count - 1 || EXT4_HAS_INCOMPAT_FEATURE(sb,
> > +                                       EXT4_FEATURE_INCOMPAT_FLEX_BG))
> >                         last_block = ext4_blocks_count(sbi->s_es) - 1;
> 
> No need to check this featyre for every  group, once at the beginning
> of the function is enough.
> 

Do you mean something like the original patch?
http://lists.openwall.net/linux-ext4/2007/07/12/20

Wouldn't we need to check all the descriptor for corruption if checksum
is not enable on the filesystem?

-JRS
-
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