On 15:14 Sat 03 Jan , Peter Teoh wrote: > Ok, how about this: completely suspending all I/O can be done. two > possible answer: > > 1. suspension on root device: reboot using a LiveCD, and mount the > rootfs as readonly. > 2. suspension on non-root device: unmount it first - after > removing all dependencies, remount as readonly. now your device will > suspend all write but not read. It's possible to remount an fs read-only using mount -o remount,ro <something> if there are no programs having files opened for writing (or O_RDWR) on this fs, but remounting while some programs have opened files with O_RDONLY is allowed. > > On Sat, Jan 3, 2009 at 4:34 AM, rohit vashist > <rohitvashist2kk3@xxxxxxxxx> wrote: > > Hi > > > > I went through the code of iostat.In the ninth field it gives the count of > > number of I/O,but it goes zero but it can be thought. > > Can u specify the grounds how hard it would to be suspend all the I/O > > currently on the device. > > > > Thanks > > > > > > > > -- > Regards, > Peter Teoh > Alexander -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
