On Thu, Dec 28, 2006 at 02:29:26AM -0800, Andrew Morton wrote: > On Thu, 28 Dec 2006 15:19:04 +0800 > Fengguang Wu <[EMAIL PROTECTED]> wrote: > > > Yanmin: I've been using the fadvise tool from > > http://www.zip.com.au/~akpm/linux/patches/stuff/ext3-tools.tar.gz > > > > It's a nice tool: > > > > % fadvise > > Usage: fadvise filename offset length advice [loops] > > advice: normal sequential willneed noreuse dontneed asyncwrite > > writewait > > % fadvise /var/sparse 0 0x7fffffff dontneed > > > > I was a bit reluctant to point at that because it has nasty hacks to make > it mostly-work on old glibc's which don't implement posix_fadvise(). > > Hopefully if you're running a recent distro, you have glibc support for > fadvise() and it's possible to write a portable version of that app which > doesn't need to know about per-arch syscall numbers.
Bad news: it's still broken. posix_fadvise() here just failed silently. I'm running Debian Etch with libc6=2.3.6.ds1-7. - 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/
