RE: [PATCH v2 2/2] ext4: disable COLLAPSE_RANGE for bigalloc

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> On Sat, Apr 19, 2014 at 01:53:50PM +0900, Namjae Jeon wrote:
> > From: Namjae Jeon <namjae.jeon@xxxxxxxxxxx>
> >
> > Once COLLAPSE RANGE is be disable for ext4 with bigalloc feature till finding
> > root-cause of problem. It will be enable with fixing that regression of
> > xfstest(generic 075 and 091) again.
> >
> > Signed-off-by: Namjae Jeon <namjae.jeon@xxxxxxxxxxx>
> > Signed-off-by: Ashish Sangwan <a.sangwan@xxxxxxxxxxx>
> > Reviewed-by: Lukas Czerner <lczerner@xxxxxxxxxx>
> 
> Thanks, applied.
> 
> What's the status of the "[2/3] ext4: fix ZERO_RANGE test failure in
> data journalling mode" patch.  Is it no longer needed?
It is needed. Currently, I am considering your suggestion of introducing
EXT4_I(inode)->i_write_mutex which can also include ext4_aio_mutex.

Thanks!
> 
>      		       	       	     - Ted

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