104 static int reserve_space(struct ubifs_info *c, int jhead, int len)  in reserve_space()  argument
107 	struct ubifs_wbuf *wbuf = &c->jheads[jhead].wbuf;  in reserve_space()
115 	squeeze = (jhead == BASEHD);  in reserve_space()
117 	mutex_lock_nested(&wbuf->io_mutex, wbuf->jhead);  in reserve_space()
145 	dbg_jnl("no free space in jhead %s, run GC", dbg_jhead(jhead));  in reserve_space()
161 			dbg_jhead(jhead));  in reserve_space()
171 	mutex_lock_nested(&wbuf->io_mutex, wbuf->jhead);  in reserve_space()
172 	dbg_jnl("got LEB %d for jhead %s", lnum, dbg_jhead(jhead));  in reserve_space()
203 	err = ubifs_add_bud_to_log(c, jhead, lnum, offs);  in reserve_space()
244 static int write_node(struct ubifs_info *c, int jhead, void *node, int len,  in write_node()  argument
247 	struct ubifs_wbuf *wbuf = &c->jheads[jhead].wbuf;  in write_node()
249 	ubifs_assert(c, jhead != GCHD);  in write_node()
251 	*lnum = c->jheads[jhead].wbuf.lnum;  in write_node()
252 	*offs = c->jheads[jhead].wbuf.offs + c->jheads[jhead].wbuf.used;  in write_node()
255 		dbg_jhead(jhead), *lnum, *offs, len);  in write_node()
275 static int write_head(struct ubifs_info *c, int jhead, void *buf, int len,  in write_head()  argument
279 	struct ubifs_wbuf *wbuf = &c->jheads[jhead].wbuf;  in write_head()
281 	ubifs_assert(c, jhead != GCHD);  in write_head()
283 	*lnum = c->jheads[jhead].wbuf.lnum;  in write_head()
284 	*offs = c->jheads[jhead].wbuf.offs + c->jheads[jhead].wbuf.used;  in write_head()
286 		dbg_jhead(jhead), *lnum, *offs, len);  in write_head()
312 static int make_reservation(struct ubifs_info *c, int jhead, int len)  in make_reservation()  argument
318 	err = reserve_space(c, jhead, len);  in make_reservation()
374 		  len, jhead, err);  in make_reservation()
396 static inline void release_head(struct ubifs_info *c, int jhead)  in release_head()  argument
398 	mutex_unlock(&c->jheads[jhead].wbuf.io_mutex);  in release_head()