Re: [RFC] Let non-root users eject their ipods?

[Nikita Danilov]

Coywolf Qi Hunt writes:
 > 2005/12/20, Sander <sander@xxxxxxxxxxx>:
 > > Coywolf Qi Hunt wrote (ao):

[...]

 > > > IMHO, umount doesn't guarantee sync, isn't it?
 > 
 > Actually I was think umount(2), since this is the kernel list, but off
 > topic here.
 > 
 > >
 > > I'm pretty sure it does :-)
 > 
 > That is because: usually your removable media is not the file system
 > root, hence umount(8) can return successfully only if no processes are
 > busy working on it.
 > 
 > If you boot from or chroot/pivot into a removable media, and you
 > remount it ro, and unplug it, then you may lose data.

sys_umount() writes all cached data back, see generic_shutdown_super()->fsync_super()

 > 
 > -- coywolf

Nikita.
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