v7: don't request a continuous sub when the epoch is not yet at the
barrier. Don't set epoch barrier unless we aborted a call that
may have already been sent. Use READ_ONCE in lockless ERROR_WRITE
flag handling.
v6: reset barrier to current epoch when receiving map with full pool or
at quota condition. Show epoch barrier in debugfs. Don't take osd->lock
unnecessarily. Remove req->r_replay_version. Other cleanups and
fixes suggested by Ilya.
v5: rebase onto ACK vs. commit changes
v4: eliminate map_cb and just call ceph_osdc_abort_on_full directly
Revert earlier patch flagging individual pages with error on writeback
failure. Add mechanism to force synchronous writes when writes start
failing, and reallowing async writes when they succeed.
v3: track "abort_on_full" behavior with a new bool in osd request
instead of a protocol flag. Remove some extraneous arguments from
various functions. Don't export have_pool_full, call it from the
abort_on_full callback instead.
v2: teach libcephfs how to hold on to requests until the right map
epoch appears, instead of delaying cap handling in the cephfs layer.
Ok, with this set, I think we have proper -ENOSPC handling for all
different write types (direct, sync, async buffered, etc...). -ENOSPC
conditions.
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
I this this should address all of Ilya's comments. Let me know if
I missed anything.
Jeff Layton (7):
libceph: remove req->r_replay_version
libceph: allow requests to return immediately on full conditions if
caller wishes
libceph: abort already submitted but abortable requests when map or
pool goes full
libceph: add an epoch_barrier field to struct ceph_osd_client
ceph: handle epoch barriers in cap messages
Revert "ceph: SetPageError() for writeback pages if writepages fails"
ceph: when seeing write errors on an inode, switch to sync writes
fs/ceph/addr.c | 10 +++--
fs/ceph/caps.c | 17 ++++++--
fs/ceph/file.c | 32 ++++++++------
fs/ceph/mds_client.c | 20 +++++++++
fs/ceph/mds_client.h | 7 +++-
fs/ceph/super.h | 26 ++++++++++++
include/linux/ceph/osd_client.h | 4 +-
net/ceph/debugfs.c | 7 ++--
net/ceph/osd_client.c | 92 +++++++++++++++++++++++++++++++++++++----
9 files changed, 179 insertions(+), 36 deletions(-)
--
2.9.3
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