f628d79997
Have get_reply check for the presence of sparse read ops in the request and set the sparse_read boolean in the msg. That will queue the messenger layer to use the sparse read codepath instead of the normal data receive. Add a new sparse_read operation for the OSD client, driven by its own state machine. The messenger will repeatedly call the sparse_read operation, and it will pass back the necessary info to set up to read the next extent of data, while zero-filling the sparse regions. The state machine will stop at the end of the last extent, and will attach the extent map buffer to the ceph_osd_req_op so that the caller can use it. Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Xiubo Li <xiubli@redhat.com> Reviewed-and-tested-by: Luís Henriques <lhenriques@suse.de> Reviewed-by: Milind Changire <mchangir@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com> |
||
|---|---|---|
| .. | ||
| auth.h | ||
| buffer.h | ||
| ceph_debug.h | ||
| ceph_features.h | ||
| ceph_frag.h | ||
| ceph_fs.h | ||
| ceph_hash.h | ||
| cls_lock_client.h | ||
| debugfs.h | ||
| decode.h | ||
| libceph.h | ||
| mdsmap.h | ||
| messenger.h | ||
| mon_client.h | ||
| msgpool.h | ||
| msgr.h | ||
| osd_client.h | ||
| osdmap.h | ||
| pagelist.h | ||
| rados.h | ||
| string_table.h | ||
| striper.h | ||
| types.h | ||