Hi all, how i can write data on a partition without a filesystem?? Saluti Carlo! Il Tue, 20 Jul 2004 20:48:24 +0200 bert hubert <ahu@xxxxxxx> scrisse: > On Tue, Jul 20, 2004 at 10:27:57AM -0700, Shesha Sreenivasamurthy wrote: > > I am having trouble with O_DIRECT. Trying to read or write from a block > > device partition. > > > > 1. Can O_DIRECT be used on a plain block device partition say > > "/dev/sda11" without having a filesystem on it. > > As fas as I know, yes, but be aware that O_DIRECT requires page aligned > addresses! (an integral of 4096 on most systems). > > > 2. If no file system is created then what should be the softblock size. > > I am using the IOCTL "BLKBSZGET". Is this correct? > > No idea what you mean - but see above about the aligned addresses. > > > 3. Can we use SEEK_END with O_DIRECT on a partition without filesystem. > > I see no reason why not. Good luck! > > -- > http://www.PowerDNS.com Open source, database driven DNS Software > http://lartc.org Linux Advanced Routing & Traffic Control HOWTO > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
