On Wed, 2023-12-13 at 11:08 -0500, Jeff Layton wrote: > On Wed, 2023-12-13 at 15:23 +0000, David Howells wrote: > > Borrow NFS's direct-vs-buffered I/O locking into netfslib. Similar code is > > also used in ceph. > > > > Modify it to have the correct checker annotations for i_rwsem lock > > acquisition/release and to return -ERESTARTSYS if waits are interrupted. > > > > This is just adding new infrastructure. It'd be nice to go ahead and > convert a filesystem to use this at the same time. Ceph would be a good > candidate. Otherwise, I'm not sure how this shakes out as far as > cleanliness in the callers. > Nevermind...I misunderstood what you were trying to do here. You're not subsuming this into common code that filesystems will use directly, this is just using the same scheme when doing I/O using netfs helpers. Ceph and other filesystems will get converted to this when they are converted to do all of their I/O via netfs. -- Jeff Layton <jlayton@xxxxxxxxxx>
