From d30291b985d1854565d7f2c82a4457869d5265e8 Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Fri, 29 Apr 2016 19:54:20 +0200 Subject: libceph: variable-sized ceph_object_id Currently ceph_object_id can hold object names of up to 100 (CEPH_MAX_OID_NAME_LEN) characters. This is enough for all use cases, expect one - long rbd image names: - a format 1 header is named ".rbd" - an object that points to a format 2 header is named "rbd_id." We operate on these potentially long-named objects during rbd map, and, for format 1 images, during header refresh. (A format 2 header name is a small system-generated string.) Lift this 100 character limit by making ceph_object_id be able to point to an externally-allocated string. Apart from being able to work with almost arbitrarily-long named objects, this allows us to reduce the size of ceph_object_id from >100 bytes to 64 bytes. Signed-off-by: Ilya Dryomov --- fs/ceph/file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/ceph/file.c') diff --git a/fs/ceph/file.c b/fs/ceph/file.c index 5d46d106bbb7..9d470397e249 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -715,7 +715,7 @@ static void ceph_aio_retry_work(struct work_struct *work) CEPH_OSD_FLAG_ONDISK | CEPH_OSD_FLAG_WRITE; req->r_base_oloc = orig_req->r_base_oloc; - req->r_base_oid = orig_req->r_base_oid; + ceph_oid_copy(&req->r_base_oid, &orig_req->r_base_oid); ret = ceph_osdc_alloc_messages(req, GFP_NOFS); if (ret) { -- cgit