Re: Reiser3/4 & Ext2/3 was: First impressions of reiserfs4

[Bernd Eckenfels <ecki@calista.eckenfels.6bone.ka-ip.net>]

In article <20030911171513.GA18399@matchmail.com> you wrote:
>> Well, in fact empty files do not need this block.
>> 
> 
> True.  Do you know if ext2/3 allocates the block even for empty files?  So
> if you create the file, it should be sparse until you write something to it,
> right?  Does the touch command do this?

At least it reserves an inode, and:

> touch /bla
> ls -lis bla
62    0 -rw-rw-r--    1 ecki     ecki            0 Sep 12 03:13 bla
> echo -n 1 >> /bla
> ls -lis bla
62    1 -rw-rw-r--    1 ecki     ecki            1 Sep 12 03:13 bla

looks like it reserves no data blocks until first written.

On XFS btw it starts with 4 blocks (2k?)

> ls -lis ~ecki/bla
7641042    4 -rw-rw-r--    1 ecki     ecki            1 Sep 12 03:13 bla

Greetings
Bernd
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