On 11/15/2011 04:21 PM, Christoph Hellwig wrote: > With the current O_SYNC I/O model it at least means an additional log > force, which on disks will be very noticeable. So unless you really > see a difference in I/O patterns don't do it. > Okay, it is better to split them out if we have to embed fallocate() in the cow path. Thanks, Yuan |