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

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Message-ID: <46F430C9.8030101@redhat.com>
Date:	Fri, 21 Sep 2007 15:59:53 -0500
From:	Eric Sandeen <sandeen@...hat.com>
To:	"Jose R. Santos" <jrs@...ibm.com>
CC:	Badari Pulavarty <pbadari@...il.com>,
	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.

Jose R. Santos wrote:
> 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.

and we know that how?  :)  I'd at least put a comment into the kernel
code so it doesn't get taken, later.

-Eric
-
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