Re: [PATCH] tmpfs: support SEEK_DATA and SEEK_HOLE (reprise)

[Dave Chinner]

On Wed, Nov 28, 2012 at 05:22:03PM -0800, Hugh Dickins wrote:
> Revert 3.5's f21f8062201f ("tmpfs: revert SEEK_DATA and SEEK_HOLE")
> to reinstate 4fb5ef089b28 ("tmpfs: support SEEK_DATA and SEEK_HOLE"),
> with the intervening additional arg to generic_file_llseek_size().
> 
> In 3.8, ext4 is expected to join btrfs, ocfs2 and xfs with proper
> SEEK_DATA and SEEK_HOLE support; and a good case has now been made
> for it on tmpfs, so let's join the party.
> 
> It's quite easy for tmpfs to scan the radix_tree to support llseek's new
> SEEK_DATA and SEEK_HOLE options: so add them while the minutiae are still
> on my mind (in particular, the !PageUptodate-ness of pages fallocated but
> still unwritten).
> 
> [akpm@xxxxxxxxxxxxxxxxxxxx: fix warning with CONFIG_TMPFS=n]
> Signed-off-by: Hugh Dickins <hughd@xxxxxxxxxx>
> ---

Does it pass the seek hole/data tests (285, 286) in xfstests?

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx
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