Re: [PATCH 3/3] Add timeout feature

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On Wed, Jul 09, 2008 at 10:11:01AM +0200, Miklos Szeredi wrote:
> On Wed, 9 Jul 2008, Dave Chinner wrote:
> > On Wed, Jul 09, 2008 at 09:13:34AM +0200, Miklos Szeredi wrote:
> > > On Wed, 9 Jul 2008, Dave Chinner wrote:
> > > > The argument against Miklos' version is that there may be multiple
> > > > commands to execute while the fs is frozen.
> > > 
> > > Which is what a shell is for ;)
> > 
> > Yeah, weĺl, with your method I ca't tell a user to:
> > 
> > 	# xfs_freeze -f /mntpt
> > 	# xfs_db -r -c 'sb 0' -c 'p rootino' /dev/foo
> > 	128
> > 	# xfs_db -r -c 'ino 128' -c 'p core.format' /dev/foo
> > 	core.format = 2 (extents)
> > 	# xfs_db .....
> > 	.....
> > 	# xfs_freeze -u /mntpt
> > 
> > i.e. using the freeze to force all metadata to disk and
> > prevent it from changing while doing interactive debugging
> > of some problem.
> 
> 	# run_freeze /mntpt /bin/bash
> 	# ...
> 	# ^D
> 
> It's the same, no?

For that case, yeah. But it's a horrible hack - if that's the
best we can come up with for this freeze/unfreeze then we've
already lost.

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx

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