mtd/ubi/upd.c

8  * Jan 2007: Alexander Schmidt, hacked per-volume update.
12  * This file contains implementation of the volume update and atomic LEB change
15  * The update operation is based on the per-volume update marker which is
16  * stored in the volume table. The update marker is set before the update
20  * device next time. If the update marker is set for a volume, the volume is
42  * @vol: volume description object
44  * This function sets the update marker flag for volume @vol. Returns zero
52 	dbg_gen("set update marker for volume %d", vol->vol_id);  in set_update_marker()
73  * @vol: volume description object
76  * This function clears the update marker for volume @vol, sets new volume
86 	dbg_gen("clear update marker for volume %d", vol->vol_id);  in clear_update_marker()
111  * ubi_start_update - start volume update.
113  * @vol: volume description object
116  * This function starts volume update operation. If @bytes is zero, the volume
125 	dbg_gen("start update of volume %d, %llu bytes", vol->vol_id, bytes);  in ubi_start_update()
137 	/* Before updating - wipe out the volume */  in ubi_start_update()
168  * @vol: volume description object
199  * @vol: volume description object
203  * @used_ebs: how many logical eraseblocks will this volume contain (static
207  * case of dynamic volume, this function checks if the data contains 0xFF bytes
211  * The reason why we skip the trailing 0xFF bytes in case of dynamic volume is
215  * to the UBI volume where 0xFFs mean free space - UBI makes sure this free
243 		 * When writing static volume, and this is the last logical  in write_leb()
261  * @vol: volume description object
265  * This function writes more data to the volume which is being updated. It may
268  * last call if the whole volume update has been successfully finished, and a
380  * @vol: volume description object
384  * This function accepts more data to the volume which is being under the