file_systems/fat/fat.cpp

24 mirror_fats(nspace *vol, uint32 sector, uint8 *buffer)
31 	sector -= vol->active_fat * vol->sectors_per_fat;
40 			sector + i * vol->sectors_per_fat, 0, 1, -1,
46 		block_cache_put(vol->fBlockCache, sector + i * vol->sectors_per_fat);
100 	uint32 sector;
135 	sector = vol->reserved_sectors + vol->active_fat * vol->sectors_per_fat +
140 		block1 = (uint8 *)block_cache_get(vol->fBlockCache, sector);
142 		block1 = (uint8 *)block_cache_get_writable(vol->fBlockCache, sector,
147 		DPRINTF(0, ("_fat_ioctl_: error reading fat (sector %" B_PRIu32 ")\n",
148 			sector));
161 						++sector);
164 						++sector, -1);
168 					DPRINTF(0, ("_fat_ioctl_: error reading fat (sector %"
169 						B_PRIu32 ")\n", sector));
171 					sector--;
205 					mirror_fats(vol, sector - 1, block1);
216 				block_cache_put(vol->fBlockCache, sector - 1);
257 			mirror_fats(vol, sector, block1);
261 			mirror_fats(vol, sector, block1);
284 		// iterate cluster and sector if needed
286 			block_cache_put(vol->fBlockCache, sector);
290 			sector = vol->reserved_sectors + vol->active_fat
294 				block1 = (uint8 *)block_cache_get(vol->fBlockCache, sector);
297 					sector, -1);
302 			block_cache_put(vol->fBlockCache, sector);
304 			sector++;
306 			ASSERT(sector < vol->reserved_sectors + (vol->active_fat + 1)
310 				block1 = (uint8 *)block_cache_get(vol->fBlockCache, sector);
313 					sector, -1);
318 			DPRINTF(0, ("_fat_ioctl_: error reading fat (sector %" B_PRIu32
319 				")\n", sector));
327 		block_cache_put(vol->fBlockCache, sector);
661 	uint32 sector, offset, previous_entry, i, val;
676 	sector = vol->reserved_sectors + vol->active_fat * vol->sectors_per_fat +
682 	buffer = (uchar *)get_block(vol->fd, sector, vol->bytes_per_sector);
684 		dprintf("fragment: error getting fat block %lx\n", sector);
715 				mark_blocks_dirty(vol->fd, sector, 1);
716 				mirror_fats(vol, sector, buffer);
718 			release_block(vol->fd, sector);
721 			sector--;
723 			buffer = (uchar *)get_block(vol->fd, sector,
726 				dprintf("fragment: error getting fat block %lx\n", sector);
739 		mark_blocks_dirty(vol->fd, sector, 1);
740 		mirror_fats(vol, sector, buffer);
742 	release_block(vol->fd, sector);