Re: [RFC][PATCH] Multiple mount protection

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On Sat, 2007-05-26 at 03:06 +0530, Kalpak Shah wrote:
> Hi Ted,
> 
> On Fri, 2007-05-25 at 10:39 -0400, Theodore Tso wrote:
> > Hi Kalpak,
> > 
> > On Tue, May 22, 2007 at 01:22:32AM +0530, Kalpak Shah wrote:
> > > It will also protect against running e2fsck on a mounted filesystem
> > > by adding similar logic to ext2fs_open().
> > 
> > Your patch didn't add this logic to ext2fs_open(); it just reserved
> > the space in the superblock.
> 
> Yeah the earlier patch for just reserving the fields. 
> 
> > 
> > I don't mind reserving the space so we don't have to worry about
> > conflicting superblock uses, but I'm still on the fence about actually
> > adding this functionality (a) into e2fsprogs, and (b) into the ext4
> > kernel code.  I guess it depends on how complicated/icky the
> > implementation code is, I guess.
> 

Hi Ted,

So can I assume that the INCOMPAT_MMP flag and the s_mmp_interval and
s_mmp_block superblock fields will be reserved regardless of whether the
patches go into ext4? I had attached the patches in the last mail so you
can share your views on them.

Thanks,
Kalpak.


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