fs/ubifs/master.c

11 /* This file implements reading and writing the master node */
21  * scan_for_master - search the valid master node.
24  * This function scans the master node LEBs and search for the latest master
25  * node. Returns zero in case of success, %-EUCLEAN if there master area is
46 		memcpy(c->mst_node, snod->node, snod->len);  in scan_for_master()
66 		   (void *)snod->node + UBIFS_CH_SZ,  in scan_for_master()
78 	ubifs_err(c, "unexpected node type %d master LEB %d:%d",  in scan_for_master()
85  * validate_master - validate master node.
88  * This function validates data which was read from master node. Returns zero
236 	ubifs_err(c, "bad master node at offset %d error %d", c->mst_offs, err);  in validate_master()
242  * ubifs_read_master - read master node.
245  * This function finds and reads the master node during file-system mount. If
246  * the flash is empty, it creates default master node as well. Returns zero in
312 			ubifs_err(c, "bad leb_cnt on master node");  in ubifs_read_master()
324 		 * Reflect changes back onto the master node. N.B. the master  in ubifs_read_master()
325 		 * node gets written immediately whenever mounting (or  in ubifs_read_master()
348  * ubifs_write_master - write master node.
351  * This function writes the master node. Returns zero in case of success and a
352  * negative error code in case of failure. The master node is written twice to