Disk defragmenter in Linux
John Summerfied
debian at herakles.homelinux.org
Fri Dec 30 03:07:51 UTC 2005
Jeff Vian wrote:
>
> Exactly, and IIRC the filesystem knows that if it needs X amount of
> space for a file, then Y number of inodes are marked for use for that
> file at the beginning. Thus space allocated is as contiguous as is
> efficient for read/write on the disk.
If "the filesystem knows that if it needs X amount of space for a file,"
that implies there's a way of telling it that.
How's that done? I don't recall any system call for *x (there is one for
OS/2), and one could do it in JCL in IBM's OS in the 60s), but in the *x
world I've never seen a way to do it.
>
--
Cheers
John
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