Re: any chance of 2.6.0-test*?

Robert Love
2003-01-12T22:49:23Z

On Sun, 2003-01-12 at 17:22, Rob Wilkens wrote:

> I say "please don't use goto" and instead have a "cleanup_lock" function
> and add that before all the return statements.. It should not be a
> burden. Yes, it's asking the developer to work a little harder, but the
> end result is better code.

No, it is gross and it bloats the kernel. It inlines a bunch of junk
for N error paths, as opposed to having the exit code once at the end.
Cache footprint is key and you just killed it.

Nor is it easier to read.

As a final argument, it does not let us cleanly do the usual stack-esque
wind and unwind, i.e.

do A
if (error)
goto out_a;
do B
if (error)
goto out_b;
do C
if (error)
goto out_c;
goto out;
out_c:
undo C
out_b:
undo B:
out_a:
undo A
out:
return ret;

Now stop this.

Robert Love