On Thu, May 13, 2010 at 11:14:30AM -0400, Christoph Hellwig wrote: > On Wed, May 12, 2010 at 04:40:53PM -0400, Josef Bacik wrote: > > V1->V2 > > -Use __blockdev_direct_IO instead of helper > > -Use KM_IRQ0 for kmap instead of KM_USER0 > > I still don't think this is correct. The completion can come from > softirq and hardirq context, and possibly even normal process context. > You either need to check for all these, or you need to use the generic > complete in user context helper btrfs has available for other types > of I/O. > AIO's aio_complete does kmap with KM_IRQ0/1 and it gets called in the same context as the btrfs completion handler, so if it's ok for aio_complete it should be ok for btrfs right? Thanks, Josef -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
