On Sun, May 15, 2005 at 10:00:26PM +0300, Denis Vlasenko wrote:
>
> What we really need, is a less thorough version of O_SYNC.
> O_SYNC currently guarantees that when syscall returns, data
> is on media (or at least in disk drive's internal cache :).
>
> This is exactly what really paranoid people want.
> Journalling labels, all that good stuff.
>
> But there are many cases where people just want to say
> 'write out dirty data asap for this device', so that
> I can copy files to floppy, wait till it stops making
> noise, and eject a disk. Samr for flash if it has write
> indicator (mine has a diode).
>
I don't really see the need for a new mode.
Mount without o_sync, but use the sync command
once to get things written out. Or
use the umount command before ejecting, it syncs
the device before returning. I use umount all the time
when using compactflash. The wear is minimal.
Helge Hafting
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