On Sat, 2018-02-10 at 11:24 -0700, Alan Somers wrote: > On Sat, Feb 10, 2018 at 10:28 AM, Willem Jan Withagen > wrote: > > > > > Hi, > > > > This has been disabled on ZFS since last November. > > And I do understand the rationale on this. > > > > BUT > > > > I've now upgraded some of my HEAD Ceph test systems and they now fail, > > since Ceph uses posix_fallocate() to allocate space for the > > FileStore-journal. > > > > Is there any expectation that this is going to fixed in any near future? > > > > --WjW > > > No. It's fundamentally impossible to support posix_fallocate on a COW > filesystem like ZFS. Ceph should be taught to ignore an EINVAL result, > since the system call is merely advisory. > > -Alan Unfortunately, posix documents that the function returns EINVAL only due to bad input parameters, so ignoring that seems like a bad idea. Wouldn't it be better if we returned EOPNOTSUP if that's the actual situation? That could be safely ignored. -- IanReceived on Sat Feb 10 2018 - 18:43:31 UTC
This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:41:14 UTC