X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fblock%2Fz2ram.c;h=9114654b54d9a933b1728830b120a9059bcf24c3;hb=a4b7d3bb744bbaaceb94a9aaf6b5cbc6e5d230f0;hp=80754cdd31190c16d9c65e4e0538b979310b42cb;hpb=ab746cb9386313201f2e0060e85a30781047dee1;p=safe%2Fjmp%2Flinux-2.6 diff --git a/drivers/block/z2ram.c b/drivers/block/z2ram.c index 80754cd..9114654 100644 --- a/drivers/block/z2ram.c +++ b/drivers/block/z2ram.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include @@ -64,21 +65,23 @@ static int current_device = -1; static DEFINE_SPINLOCK(z2ram_lock); -static struct block_device_operations z2_fops; static struct gendisk *z2ram_gendisk; static void do_z2_request(struct request_queue *q) { struct request *req; - while ((req = elv_next_request(q)) != NULL) { - unsigned long start = req->sector << 9; - unsigned long len = req->current_nr_sectors << 9; + + req = blk_fetch_request(q); + while (req) { + unsigned long start = blk_rq_pos(req) << 9; + unsigned long len = blk_rq_cur_bytes(req); + int err = 0; if (start + len > z2ram_size) { printk( KERN_ERR DEVICE_NAME ": bad access: block=%lu, count=%u\n", - req->sector, req->current_nr_sectors); - end_request(req, 0); - continue; + blk_rq_pos(req), blk_rq_cur_sectors(req)); + err = -EIO; + goto done; } while (len) { unsigned long addr = start & Z2RAM_CHUNKMASK; @@ -93,7 +96,9 @@ static void do_z2_request(struct request_queue *q) start += size; len -= size; } - end_request(req, 1); + done: + if (!__blk_end_request_cur(req, err)) + req = blk_fetch_request(q); } } @@ -310,7 +315,7 @@ z2_release(struct gendisk *disk, fmode_t mode) return 0; } -static struct block_device_operations z2_fops = +static const struct block_device_operations z2_fops = { .owner = THIS_MODULE, .open = z2_open, @@ -369,7 +374,7 @@ err: static void __exit z2_exit(void) { int i, j; - blk_unregister_region(MKDEV(Z2RAM_MAJOR, 0), 256); + blk_unregister_region(MKDEV(Z2RAM_MAJOR, 0), Z2MINOR_COUNT); unregister_blkdev(Z2RAM_MAJOR, DEVICE_NAME); del_gendisk(z2ram_gendisk); put_disk(z2ram_gendisk);