Messages in this thread |  | | | From | "Khimenko Victor" <> | | Date | Thu, 24 Feb 2000 22:18:03 +0300 (MSK) | | Subject | Re: Of removable devices |
| |
In <14516.26884.304027.933990@dukat.scot.redhat.com> Stephen C. Tweedie (sct@redhat.com) wrote: > Hi,
> On Wed, 23 Feb 2000 17:34:43 -0000, "Towers, Tim (London)" > <ttowers@MLE.CO.UK> said:
>> However, to protect users who have a removable media removed whilst >> writes are occurring - Is there a way of remembering unwritten data >> and requeueing it if a semi-written media is placed back in.
> Not really --- there is no reliable way to determine that it is the same > disk which has been replaced,
There ARE such way: both FAT and EXT2FS use serial numbers. Of course it's filesystem-specific thing but two mentioned above are by far most common ones in Linux world.
> and queuing things to the wrong disk would be fatal.
This is true :-(
> You're also risking serious virtual memory deadlock problems > if you "pin" that dirty data without hope of writeback for an extended > period of time, although that effect could be limited with work.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
|  |