Cross Reference: /drivers/mtd/mtdconcat.c

Lines Matching refs:erase
340 static int concat_dev_erase(struct mtd_info *mtd, struct erase_info *erase)
351 	erase->mtd = mtd;
352 	erase->callback = concat_erase_callback;
353 	erase->priv = (unsigned long) &waitq;
359 	err = mtd_erase(mtd, erase);
363 		if (erase->state != MTD_ERASE_DONE
364 		    && erase->state != MTD_ERASE_FAILED)
369 		err = (erase->state == MTD_ERASE_FAILED) ? -EIO : 0;
380 	struct erase_info *erase;
383 	 * Check for proper erase block alignment of the to-be-erased area.
384 	 * It is easier to do this based on the super device's erase
389 		/* the easy case: device has uniform erase block size */
395 		/* device has variable erase size */
400 		 * Find the erase region where the to-be-erased area begins:
409 		 * offset is aligned to this region's erase size:
415 		 * now find the erase region where the to-be-erased area ends:
422 		 * check if the ending offset is aligned to this region's erase size
430 	erase = kmalloc(sizeof (struct erase_info), GFP_KERNEL);
432 	if (!erase)
435 	*erase = *instr;
444 		if (subdev->size <= erase->addr) {
445 			erase->addr -= subdev->size;
455 	/* now do the erase: */
462 		if (erase->addr + length > subdev->size)
463 			erase->len = subdev->size - erase->addr;
465 			erase->len = length;
467 		length -= erase->len;
468 		if ((err = concat_dev_erase(subdev, erase))) {
472 			if (erase->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
473 				instr->fail_addr = erase->fail_addr + offset;
477 		 * erase->addr specifies the offset of the area to be
484 		erase->addr = 0;
487 	instr->state = erase->state;
488 	kfree(erase);
805 	 * Combine the erase block size info of the subdevices:
808 	 * many changes in erase size we have
814 			/* current subdevice has uniform erase size */
816 				/* if it differs from the last subdevice's erase size, count it */
823 			/* current subdevice has variable erase size */
827 				/* walk the list of erase regions, count any changes */
843 		 * All subdevices have the same uniform erase size.
852 		 * erase block size varies across the subdevices: allocate
853 		 * space to store the data describing the variable erase regions
866 			    ("memory allocation error while creating erase region list"
873 		 * in erase region info:
879 				/* current subdevice has uniform erase size */
898 				/* current subdevice has variable erase size */
901 					/* walk the list of erase regions, count any changes */