On Thu, 19 Jul 2007 08:51:49 -0700 Badari Pulavarty <[EMAIL PROTECTED]> wrote:
> > > + } > > > + > > > + offset += ret; > > > + retval += ret; > > > + len -= ret; > > > + index += offset >> HPAGE_SHIFT; > > > + offset &= ~HPAGE_MASK; > > > + > > > + page_cache_release(page); > > > + if (ret == nr && len) > > > + continue; > > > + goto out; > > > + } > > > +out: > > > + return retval; > > > +} > > > > This code doesn't have all the ghastly tricks which we deploy to handle > > concurrent truncate. > > Do I need to ? Baaahh!! I don't want to deal with them. Nick, can you think of any serious consequences of a read/truncate race in there? I can't.. > All I want is a simple read() to get my oprofile working. > Please advise. Did you consider changing oprofile userspace to read the executable with mmap? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
