Re: [PATCH] [TRIVIAL] kstrdup

--==_Exmh_1500533200P
Content-Type: text/plain; charset=us-ascii

On Tue, 14 Jan 2003 12:55:40 +1100, Rusty Russell said:
> Everyone loves reimplementing strdup. 

> +char *kstrdup(const char *s, int gfp)
> +{
> +	char *buf = kmalloc(strlen(s)+1, gfp);
> +	if (buf)
> +		strcpy(buf, s);
> +	return buf;
> +}

Out of curiosity, who's job is it to avoid the race condition between when
this function takes the strlen() and the other processor makes it a longer
string before we return from kmalloc() and do the strcpy()?

--==_Exmh_1500533200P
Content-Type: application/pgp-signature

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.1 (GNU/Linux)
Comment: Exmh version 2.5 07/13/2001

iD8DBQE+I4POcC3lWbTT17ARAi0QAJ4ubZHKMEBo8hrJG2nsIKRH16XAYwCfd/2V
iE95SeJnHdmPTYCxXBm436U=
=xTQD
-----END PGP SIGNATURE-----

--==_Exmh_1500533200P--