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. First I trimmed down the original set to have less tendrils in ceph.ko when we hit a full condition. Most of the machinery for that is now in libceph.ko, and cephfs just sets the r_abort_on_full flag on the appropriate calls. For buffered, synchronous writes, it also reverts a patch that flags individual pages with the PG_error bit on writeback failure. I don't think we want that for the reasons described in the patch. Finally, this also adds a new mechanism that forces synchronous writes on an inode when write requests start failing. 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 This version incorporates changes based on Ilya's cursory review yesterday. It also cleans up the handling of requests that should be aborted on a full condition. The patch that exports have_pool_full has also been dropped since it's no longer needed. Jeff Layton (6): 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 | 14 ++++-- fs/ceph/caps.c | 17 ++++++-- fs/ceph/file.c | 50 ++++++++++++++++------ fs/ceph/mds_client.c | 20 +++++++++ fs/ceph/mds_client.h | 7 ++- fs/ceph/super.h | 26 +++++++++++ include/linux/ceph/osd_client.h | 3 ++ net/ceph/osd_client.c | 95 +++++++++++++++++++++++++++++++++++++---- 8 files changed, 201 insertions(+), 31 deletions(-) -- 2.9.3 -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html