On Thu, 14 Jan 2010 05:13:08 +0000 Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote: > On Wed, Jan 13, 2010 at 10:09:56PM +0800, Wu, Fengguang wrote: > > From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> > > > > Now, rw_verify_area() checsk f_pos is negative or not. And if > > negative, returns -EINVAL. > > > > But, some special files as /dev/(k)mem and /proc/<pid>/mem etc.. > > has negative offsets. And we can't do any access via read/write > > to the file(device). > > > > This patch introduce a flag S_VERYBIG and allow negative file > > offsets. > > Ehh... FMODE_NEG_OFFSET in file->f_mode, perhaps? > Any method is okay for me. I was just not sure where I could modify without problem. If modifing f_mode is allowed, I'll write new version. Thank you for advice. I'm sorry that I don't have enough time this week. So, I'll try next week. I think dropping this patch itself has no big influence to this patch set. (but debug will be harder ;) Thanks, -Kame -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
