Re: [PATCH 0/2] RFC: iomap-based swap file activation

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On Fri, Apr 20, 2018 at 10:08:13PM +0000, Aleksei Besogonov wrote:
> This patch set adds iomap-based swap file initialization, this allows
> it to use files with holes on XFS for swap.

Just out of curiosity (well after the fact, sorry...), what's the
motivation for having sparse swap files?

--D

> Aleksei Besogonov (2):
>   fs: Add iomap_swap_activate
>   xfs: add support for iomap-based swapfile activation
> 
>  fs/iomap.c            | 87 +++++++++++++++++++++++++++++++++++++++++++++++++++
>  fs/xfs/xfs_aops.c     |  7 +++++
>  include/linux/iomap.h |  5 +++
>  mm/swapfile.c         |  1 +
>  4 files changed, 100 insertions(+)
> 
> -- 
> 2.14.1
> 
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