Re: SEEK_HOLE and SEEK_DATA

On Thu, Feb 02, 2006 at 04:03:49AM -0500, linux <at> horizon.com wrote:

> Solaris 10 has added a moderately useful new feature...  lseek now
> supports whence = 3 (SEEK_DATA) and 4 (SEEK_HOLE).  What these do is
> advance the file pointer to the start of the next run of the
> appropriate kind past the given (absolute) offset.

Some filesystems in linux (XFS for one, probably others?) already have
a mechanism (albeit more complex the way it's exposed) to find holes &
data.
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