I was thinking along the lines of if it made sense to multi-purpose the BackFileSystem for non-Linux portability. In which case even things like posix_fallocate, xattr access, etc.. might fit in well, which may have equivalent functionality, under a different name. On Sun, Aug 4, 2013 at 5:47 PM, Yan, Zheng <ukernel@xxxxxxxxx> wrote: > On Mon, Aug 5, 2013 at 7:39 AM, Noah Watkins <noah.watkins@xxxxxxxxxxx> wrote: >> It seems to make sense that fiemap should be part of the `class >> BackingFileSystem` abstraction? >> > > FS_IOC_FIEMAP is a standard API, I think no need to implement it in `class > BackingFileSystem`. > > >> On Thu, Jul 25, 2013 at 4:53 PM, Sage Weil <sage@xxxxxxxxxxx> wrote: >>> http://wiki.ceph.com/01Planning/02Blueprints/Emperor/osd:_ceph_on_zfs >>> >>> We've done some preliminary testing and xattr debugging that allows >>> ceph-osd to run on zfsforlinux using the normal writeahead journaling mode >>> (the same mode used for xfs and ext4). However, we aren't doing anything >>> special to take advantage of zfs's capabilities. >>> >>> This session would go over what is needed to make parallel journaling work >>> (which would leverage zfs snapshots). I would also like to have a >>> discussion about whether other longer-term possibilities, such as storing >>> objects directly using the DMU, make sense given what ceph-osd's >>> ObjectStore interface really needs. It might also be an appropriate time >>> to visit whether other snapshotting linux filesystems (like nilfs2) would >>> fit well into any generalization of the filestore code that comes out of >>> this effort. >>> >>> If anybody is interested in this, please add yourself to the interested >>> parties section (or claim ownership) of this blueprint! >>> >>> >>> -- >>> To unsubscribe from this list: send the line "unsubscribe ceph-devel" in >>> the body of a message to majordomo@xxxxxxxxxxxxxxx >>> More majordomo info at http://vger.kernel.org/majordomo-info.html >> -- >> To unsubscribe from this list: send the line "unsubscribe ceph-devel" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
