On Tue, Oct 29, 2013 at 02:15:20PM -0400, Jeff Mahoney wrote: > On 10/29/13, 9:56 AM, Josef Bacik wrote: > > Btrfs has always had these filler extent data items for holes in inodes. > > This > > has made somethings very easy, like logging hole punches and sending hole > > punches. However for large holey files these extent data items are pure > > overhead. So add an incompatible feature to no longer add hole extents to > > reduce the amount of metadata used by these sort of files. This has a few > > changes for logging and send obviously since they will need to detect holes > > and > > log/send the holes if there are any. I've tested this thoroughly with > > xfstests > > and it doesn't cause any issues with and without the incompat format set. > > Thanks, > > This sounds like it could be a candidate for the online-enable mask in > my feature ioctl patchset.
Yeah once I pull your stuff in I'll add it. Thanks, Josef -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
