Messages in this thread | | | Date | Thu, 13 Oct 2005 01:09:21 +0100 | From | Jamie Lokier <> | Subject | Re: [PATCH] Use of getblk differs between locations |
| |
Mikulas Patocka wrote: > But discarding data sometimes on USB unplug is even worse than discarding > data always --- users will by experimenting learn that linux doesn't > discard write-cached data and reminds them to replug the device --- and > one day, randomly, they lose their data because of some memory management > condition...
It should not happen provided the total amount of dirty data for detachable devices is restricted to allow enough room for opening a dialog.
That's no different, in principle, than the restrictions that are used to ensure some types of kernel memory allocation always succeed.
There's no exact calculation, just a notion of "this many megabytes should be enough for a dialog".
-- Jamie - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |