On Mon, 18 Jan 2010 10:38:27 +0900 OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx> wrote: > KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> writes: > > >> So, lseek() returns (uses) it? > > > > lseek can return negative value, as far as I know. > > Umm..., how do you know the difference of -EOVERFLOW and fpos == -75? > Ah, sorry. I read wrong. For /dev/mem, it uses its own lseek function which allows negative f_pos value. Other usual file system doesn't allow negative f_pos. It's ok not to return -EOVEFLOW for /dev/mem because there is no file end. 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
