Kiyoshi Ueda <k-ueda@xxxxxxxxxxxxx> wrote: > Hi Alasdair, > > On 11/13/2009 11:19 PM +0900, Alasdair G Kergon wrote: > > Would DMF_BLOCK_IO_FOR_SUSPEND work instead? > > Maybe. > But we must remember that using the flag means that multipath can't > use message during flushing I/Os, although I'm not sure how it hurts us. > > If we'd like to keep the ability to use message during flushing I/Os, > we should use another flag for this purpose and set it after > dm_wait_for_completion(). > I just re-rolled / re-submitted a update series that use a multipath internal flag for the suspended state plus a mutex. This would avoid a extended meaning for DMF_BLOCK_IO_FOR_SUSPEND if we needed to avoid that case. -andmike -- Michael Anderson andmike@xxxxxxxxxxxxxxxxxx -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
