On May,Tuesday 18 2010, at 5:42 PM, Matthias Scheler wrote: > On Tue, May 18, 2010 at 03:10:41PM +0000, Adam Hamsik wrote: >> Log Message: >> Add support for DIOCCACHESYNC ioctl for dm devices. Add new sync function >> pointer to dm_target_t because that is the only part of dm which know real >> block device. disk_ioctl_switch parses whole device table and for every >> entry it calls particular sync routine which propagates DIOCCACHESYNC >> to real disk. > > What happens if a logical volume consists of two slice of one physical > device? Will the physical device get flushed twice?
Yes and there is no easy way how to not do that. Regards Adam.