This patchset is an updated version of the patch series originally
done by John Spray and posted here:
http://www.spinics.net/lists/ceph-devel/msg21257.html
The patchset has undergone a number of changes since the original
submission:
- updated for final version of CAPRELEASE message changes
- protect delayed cap list with spinlock instead of mutex/rwsem
- no need to allocate a new object to track delayed cap requests
- rerunning delayed caps is now shuffled off to a workqueue
- properly handle requests that come in after the "full" map comes in
- clean out delayed cap requests on last session put
With this, xfstests seems to work as well as before, and we get timely
-ENOSPC returns under these conditions with O_DIRECTi writes.
I still need to plumb in a way to throttle the dirtying of new pages in
buffered I/O when we are getting errors during writeback. Still, I
figure this is a good place to pause and post the set before I implement
that part.
Jeff Layton (7):
libceph: add ceph_osdc_cancel_writes
libceph: rename and export have_pool_full
libceph: rename and export maybe_request_map
ceph: handle new osdmap epoch updates in CLIENT_CAPS and WRITE
codepaths
ceph: update CAPRELEASE message format
ceph: clean out delayed caps when destroying session
libceph: allow requests to return immediately on full conditions if
caller wishes
fs/ceph/addr.c | 14 ++++--
fs/ceph/caps.c | 43 ++++++++++++++--
fs/ceph/debugfs.c | 3 ++
fs/ceph/file.c | 8 +--
fs/ceph/mds_client.c | 108 ++++++++++++++++++++++++++++++++++++++++
fs/ceph/mds_client.h | 10 +++-
include/linux/ceph/osd_client.h | 22 +++++++-
include/linux/ceph/rados.h | 1 +
net/ceph/osd_client.c | 88 +++++++++++++++++++++++++-------
9 files changed, 263 insertions(+), 34 deletions(-)
--
2.9.3
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