[PATCH] (2/15) big struct block_device * push (first series)

 - remove abuses of blksize_size[] and (late) hardsect_size[].  Mostly
   drivers/s390/char/*, BTW...

drivers/acorn/block/mfmhd.c

@@ -196,7 +196,6 @@ struct mfm_info {
 static struct hd_struct mfm[MFM_MAXDRIVES << 6];
 static int mfm_sizes[MFM_MAXDRIVES << 6];
 static int mfm_blocksizes[MFM_MAXDRIVES << 6];
-static int mfm_sectsizes[MFM_MAXDRIVES << 6];
 static DECLARE_WAIT_QUEUE_HEAD(mfm_wait_open);
 
 /* Stuff from the assembly routines */
@@ -1319,10 +1318,8 @@ static void mfm_geninit (void)
 	for (i = 0; i < (MFM_MAXDRIVES << 6); i++) {
 		/* Can't increase this - if you do all hell breaks loose */
 		mfm_blocksizes[i] = 1024;
-		mfm_sectsizes[i] = 512;
 	}
 	blksize_size[MAJOR_NR] = mfm_blocksizes;
-	hardsect_size[MAJOR_NR] = mfm_sectsizes;
 
 	mfm_drives = mfm_initdrives();
 

drivers/ide/ataraid.c

@@ -34,8 +34,6 @@
 
 #include "ataraid.h"
 
-                                        
-static int ataraid_hardsect_size[256];
 static int ataraid_blksize_size[256];
 
 static struct raid_device_operations* ataraid_ops[16];
@@ -239,17 +237,13 @@ static __init int ataraid_init(void)
 	int i;
         for(i=0;i<256;i++)
 	{
-        	ataraid_hardsect_size[i] = 512;
 		ataraid_blksize_size[i] = 1024;  
 		ataraid_readahead[i] = 1023;
 	}
 	
 	if (blksize_size[ATAMAJOR]==NULL)
 		blksize_size[ATAMAJOR] = ataraid_blksize_size;
-	if (hardsect_size[ATAMAJOR]==NULL)
-		hardsect_size[ATAMAJOR] = ataraid_hardsect_size;
-	
-	
+
 	/* setup the gendisk structure */	
 	ataraid_gendisk.part = kmalloc(256 * sizeof(struct hd_struct),GFP_KERNEL);
 	if (ataraid_gendisk.part==NULL) {
@@ -286,7 +280,6 @@ static __init int ataraid_init(void)
 static void __exit ataraid_exit(void)
 {
 	unregister_blkdev(ATAMAJOR, "ataraid");
-	hardsect_size[ATAMAJOR] = NULL;
 	blk_size[ATAMAJOR] = NULL;
 	blksize_size[ATAMAJOR] = NULL;                       
 

drivers/s390/block/dasd.c

@@ -723,13 +723,6 @@ dasd_register_major (major_info_t * major_info)
 		goto out_blksize_size;
 	memset (blksize_size[major], 0, (1 << MINORBITS) * sizeof (int));
 
-        /* init_hardsect_size */
-	hardsect_size[major] =
-	    (int *) kmalloc ((1 << MINORBITS) * sizeof (int), GFP_ATOMIC);
-	if (!hardsect_size[major])
-		goto out_hardsect_size;
-	memset (hardsect_size[major], 0, (1 << MINORBITS) * sizeof (int));
-
 	/* finally do the gendisk stuff */
 	major_info->gendisk.part = kmalloc ((1 << MINORBITS) *
 					    sizeof (struct hd_struct),
@@ -748,10 +741,6 @@ dasd_register_major (major_info_t * major_info)
 
         /* error handling - free the prior allocated memory */  
       out_gendisk:
-	kfree (hardsect_size[major]);
-	hardsect_size[major] = NULL;
-
-      out_hardsect_size:
 	kfree (blksize_size[major]);
 	blksize_size[major] = NULL;
 
@@ -813,7 +802,6 @@ dasd_unregister_major (major_info_t * major_info)
 
 	kfree (blk_size[major]);
 	kfree (blksize_size[major]);
-	kfree (hardsect_size[major]);
 
 	blk_clear(major);
 
@@ -3341,6 +3329,7 @@ dasd_setup_blkdev (dasd_device_t *device )
         device->request_queue = kmalloc(sizeof(request_queue_t),GFP_KERNEL);
         device->request_queue->queuedata = device;
         blk_init_queue (device->request_queue, do_dasd_request);
+	blk_queue_hardsect_size(device->request_queue, device->sizes.bp_block);
         elevator_init (&(device->request_queue->elevator),ELEVATOR_NOOP);
 
         for (i = 0; i < (1 << DASD_PARTN_BITS); i++) {
@@ -3350,7 +3339,6 @@ dasd_setup_blkdev (dasd_device_t *device )
                                  sizes.s2b_shift) >> 1;
                 else
                         device->major_info->gendisk.sizes[minor + i] = 0;
-                hardsect_size[major][minor + i] = device->sizes.bp_block;
                 blksize_size[major][minor + i] = device->sizes.bp_block;
 		blk_queue_max_sectors(device->request_queue,
 		 device->discipline->max_blocks << device->sizes.s2b_shift);
@@ -3381,7 +3369,6 @@ dasd_disable_blkdev (dasd_device_t *device )
         for (i = 0; i < (1 << DASD_PARTN_BITS); i++) {
                 destroy_buffers(MKDEV(major,minor+i));
                 device->major_info->gendisk.sizes[minor + i] = 0;
-                hardsect_size[major][minor + i] = 0;
                 blksize_size[major][minor + i] = 0;
         }
         if (device->request_queue) {

drivers/s390/block/xpram.c

@@ -190,7 +190,6 @@ MODULE_PARM_DESC(sizes, "list of device (partition) sizes " \
 
 Xpram_Dev *xpram_devices = NULL;
 int *xpram_blksizes = NULL;
-int *xpram_hardsects = NULL;
 int *xpram_offsets = NULL;   /* partition offsets */
 
 #define MIN(x,y) ((x) < (y) ? (x) : (y))
@@ -1022,6 +1021,7 @@ int xpram_init(void)
 #elif (XPRAM_VERSION == 24)
 	q = BLK_DEFAULT_QUEUE (major);
 	blk_init_queue (q, xpram_request);
+	blk_queue_hardsect_size(q, xpram_hardsect);
 #endif /* V22/V24 */
 
 	/* we want to have XPRAM_UNUSED blocks security buffer between devices */
@@ -1072,16 +1072,6 @@ int xpram_init(void)
 		xpram_blksizes[i] = xpram_blksize;
 	blksize_size[major]=xpram_blksizes;
 
-	xpram_hardsects = kmalloc(xpram_devs * sizeof(int), GFP_KERNEL);
-	if (!xpram_hardsects) {
-		PRINT_ERR("Not enough memory for xpram_hardsects\n");
-                PRINT_ERR("Giving up xpram\n");
-		goto fail_malloc_hardsects;
-	}
-	for (i=0; i < xpram_devs; i++) /* all the same hardsect */
-		xpram_hardsects[i] = xpram_hardsect;
-	hardsect_size[major]=xpram_hardsects;
-   
 	/* 
 	 * allocate the devices -- we can't have them static, as the number
 	 * can be specified at load time
@@ -1154,12 +1144,9 @@ int xpram_init(void)
 #endif /* V24 */
  fail_malloc_blksizes:
 	kfree (xpram_offsets);
- fail_malloc_hardsects:
 	kfree (xpram_blksizes);
 	blksize_size[major] = NULL;
  fail_malloc_devices:
-	kfree(xpram_hardsects);
-	hardsect_size[major] = NULL;
  fail_malloc:
 #if (XPRAM_VERSION == 22)
 	blk_dev[major].request_fn = NULL;
@@ -1197,7 +1184,6 @@ void cleanup_module(void)
 	blk_dev[major].request_fn = NULL;
 #endif /* V22 */
 	kfree(blksize_size[major]);
-	kfree(hardsect_size[major]);
 	kfree(xpram_offsets);
 	blk_clear(major);
 

drivers/s390/char/tape34xx.c

@@ -1343,8 +1343,9 @@ ccw_req_t * tape34xx_bread (struct request *req,tape_info_t* ti,int tapeblock_ma
 	ccw_req_t *cqr;
 	ccw1_t *ccw;
 	__u8 *data;
-	unsigned bsize = blksize_size[tapeblock_major][ti->blk_minor];
-	int s2b = bsize/hardsect_size[tapeblock_major][ti->blk_minor];
+	kdev_t dev = mk_kdev(tapeblock_major, ti->blk_minor);
+	unsigned bsize = block_size(dev);
+	int s2b = bsize/get_hardsect_size(dev);
 	int realcount;
 	int size,bhct = 0;
 	struct buffer_head* bh;

drivers/s390/char/tapeblock.c

@@ -75,7 +75,6 @@ void
 tapeblock_setup(tape_info_t* ti) {
     blk_size[tapeblock_major][ti->blk_minor]=0; // this will be detected
     blksize_size[tapeblock_major][ti->blk_minor]=2048; // blocks are 2k by default.
-    hardsect_size[tapeblock_major][ti->blk_minor]=512;
     blk_init_queue (&ti->request_queue, tape_request_fn); 
 #ifdef CONFIG_DEVFS_FS
     tapeblock_mkdevfstree(ti);
@@ -106,8 +105,6 @@ tapeblock_init(void) {
     memset(blk_size[tapeblock_major],0,256*sizeof(int));
     blksize_size[tapeblock_major] = (int*) kmalloc (256*sizeof(int),GFP_ATOMIC);
     memset(blksize_size[tapeblock_major],0,256*sizeof(int));
-    hardsect_size[tapeblock_major] = (int*) kmalloc (256*sizeof(int),GFP_ATOMIC);
-    memset(hardsect_size[tapeblock_major],0,256*sizeof(int));
     max_sectors[tapeblock_major] = (int*) kmalloc (256*sizeof(int),GFP_ATOMIC);
     memset(max_sectors[tapeblock_major],0,256*sizeof(int));
     blkfront = kmalloc(sizeof(tape_frontend_t),GFP_KERNEL);

fs/partitions/ibm.c

@@ -125,11 +125,7 @@ ibm_partition(struct gendisk *hd, struct block_device *bdev,
 		return 0;
 	if (ioctl_by_bdev(bdev, HDIO_GETGEO, (unsigned long)geo);
 		return 0;
-	blocksize = hardsect_size[major(dev)][minor(dev)];
-	if ( blocksize <= 0 ) {
-		return 0;
-	}
-	blocksize >>= 9;
+	blocksize = get_hardsect_size(dev) >> 9;
 	
 	data = read_dev_sector(bdev, inode->label_block*blocksize, &sect);
 	if (!data)