On Mon, Nov 10, 2008 at 09:40:18AM -0500, Mikulas Patocka wrote: > > - If the device is suspended, the response should be that it is > > congested, I'd have thought. > > Yes, but these congestion upcalls are used only for optimization and the > device is suspended for so small time, that it doesn't matter if we > optimize io acces in small moment or not. We use device congested to not block pdflush on a device that can't currently accept I/O. For a suspended device congested is always correct, pdflush will just come back a little later and in the mean time write out stuff that doesn't delay it. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
