On Tue, Nov 26, 2013 at 06:50:33AM -0800, Sage Weil wrote: > If syncfs(2) is not present, we have to use sync(2). That means you have > N daemons calling sync(2) to force a commit on a single fs, but all other > mounted fs's are also synced... which means N times the sync(2) calls. > > Fortunately syncfs(2) has been around for a while now, so this only > affects really old distros. And even when glibc does not have a syscall > wrapper for it, we try to call the syscall directly. And for btrfs you were/are using magic ioctls, right. Looks like the page reference in the last post has already been updated, thanks! _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com