clear_commit_marks(): avoid deep recursion
commit60fcc2e6ce255da1baa92905c10456981d260fa0
authorJohannes Schindelin <Johannes.Schindelin@gmx.de>
Wed, 10 Oct 2007 22:14:35 +0000 (10 23:14 +0100)
committerShawn O. Pearce <spearce@spearce.org>
Tue, 16 Oct 2007 01:05:22 +0000 (15 21:05 -0400)
tree458c6ad0e430f87432000c6dcf79905e3babfac8
parent7b40a4552a0fbdc6ee9a22ce10408d79ca1599af
clear_commit_marks(): avoid deep recursion

Before this patch, clear_commit_marks() recursed for each parent.  This
could be potentially very expensive in terms of stack space.  Probably
the only reason that this did not lead to problems is the fact that we
typically call clear_commit_marks() after marking a relatively small set
of commits.

Use (sort of) a tail recursion instead: first recurse on the parents
other than the first one, and then continue the loop with the first
parent.

Noticed by Shawn Pearce.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
commit.c