linux-kernel - Re: [PATCH] ext4: FLEX

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Message-ID: <20070921154935.0b16c5ca@gara>
Date:	Fri, 21 Sep 2007 15:49:35 -0500
From:	"Jose R. Santos" <jrs@...ibm.com>
To:	Badari Pulavarty <pbadari@...il.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	ext4 <linux-ext4@...r.kernel.org>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ext4: FLEX_BG Kernel support v2.

On Fri, 21 Sep 2007 13:29:27 -0700
Badari Pulavarty <pbadari@...il.com> wrote:

> On Fri, 2007-09-21 at 09:06 -0500, Jose R. Santos wrote:
> > From: Jose R. Santos <jrs@...ibm.com>
> > 
> > ext4: FLEX_BG Kernel support v2.
> > 
> 
> > @@ -702,13 +702,15 @@ static inline int ext4_valid_inum(struct super_block *sb, unsigned long ino)
> >  #define EXT4_FEATURE_INCOMPAT_META_BG		0x0010
> >  #define EXT4_FEATURE_INCOMPAT_EXTENTS		0x0040 /* extents support */
> >  #define EXT4_FEATURE_INCOMPAT_64BIT		0x0080
> > +#define EXT4_FEATURE_INCOMPAT_FLEX_BG		0x0200
> 
> Any reason why 0x100 is skipped ?
> 
> Thanks,
> Badari
> 

Because 0x0100 is reserved for EXT4_FEATURE_INCOMPAT_MMP in e2fsprogs.

-JRS
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