On Thu, Nov 23, 2017 at 10:51:43AM +0200, Nikolay Borisov wrote:
> Commit 9036c10208e1 ("Btrfs: update hole handling v2") added the FLAG_VACANCY
> to denote holes, however there was already a consistent way of flagging
> extents which represent hole - ->block_start = EXTENT_MAP_HOLE. And also
> the only place where this flag is checked is in the fiemap code, but the
> block_start value is also checked and every other place in the filesystem
> detects holes by using block_start value's. So remove the extra flag. This
> survived a full xfstest run
>
> Signed-off-by: Nikolay Borisov <nborisov@xxxxxxxx>
Reviewed-by: David Sterba <dsterba@xxxxxxxx>
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