On Wed, 20 Apr 2005, Linus Torvalds wrote:

NO! Don't see if this works. For the "sha1 file already exists" file, it 
forgot to return the SHA1 value in "returnsha1", and would thus corrupt 
the trees it wrote.

Proper version with fixes checked in. For me, it brings down the time to
write a kernel tree from 0.34s to 0.24s, so a third of the time was just
compressing objects that we ended up already having.

Two thirds to go ;)

		Linus