David Howells <dhowells@xxxxxxxxxx> writes: > Hi Christian, > > Here are a couple of patches that fix the use of fscaching with ceph: > > (1) Fix the read collector to mark the write request that it creates to copy > data to the cache with NETFS_RREQ_OFFLOAD_COLLECTION so that it will run > the write collector on a workqueue as it's meant to run in the background > and the app isn't going to wait for it. > > (2) Fix the read collector to wake up the copy-to-cache write request after > it sets NETFS_RREQ_ALL_QUEUED if the write request doesn't have any > subrequests left on it. ALL_QUEUED indicates that there won't be any > more subreqs coming and the collector should clean up - except that an > event is needed to trigger that, but it only gets events from subreq > termination and so the last event can beat us to setting ALL_QUEUED. > > The patches can also be found here: > > https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/log/?h=netfs-fixes > > Thanks, > David > > David Howells (2): > netfs: Fix copy-to-cache so that it performs collection with > ceph+fscache > netfs: Fix race between cache write completion and ALL_QUEUED being > set > > fs/netfs/read_pgpriv2.c | 5 +++++ > include/trace/events/netfs.h | 30 ++++++++++++++++++++++++++++++ > 2 files changed, 35 insertions(+) Reviewed-by: Paulo Alcantara (Red Hat) <pc@xxxxxxxxxxxxx>
