182 struct ceph_mds_request {  struct
202 	union ceph_mds_request_args r_args;  argument
203 	int r_fmode;        /* file mode, if expecting cap */
204 	kuid_t r_uid;
205 	kgid_t r_gid;
206 	struct timespec r_stamp;
209 	int r_direct_mode;
210 	u32 r_direct_hash;      /* choose dir frag based on this dentry hash */
211 	bool r_direct_is_hash;  /* true if r_direct_hash is valid */
214 	struct ceph_pagelist *r_pagelist;
217 	int r_inode_drop, r_inode_unless;
218 	int r_dentry_drop, r_dentry_unless;
219 	int r_old_dentry_drop, r_old_dentry_unless;
220 	struct inode *r_old_inode;
221 	int r_old_inode_drop, r_old_inode_unless;
223 	struct ceph_msg  *r_request;  /* original request */
224 	int r_request_release_offset;
225 	struct ceph_msg  *r_reply;
226 	struct ceph_mds_reply_info_parsed r_reply_info;
227 	struct page *r_locked_page;
251 	ceph_mds_request_callback_t r_callback;  argument
252 	ceph_mds_request_wait_callback_t r_wait_for_completion;  argument
253 	struct list_head  r_unsafe_item;  /* per-session unsafe list item */
254 	bool		  r_got_unsafe, r_got_safe, r_got_result;
256 	bool              r_did_prepopulate;
257 	u32               r_readdir_offset;
259 	struct ceph_cap_reservation r_caps_reservation;
260 	int r_num_caps;