[SCSI] Merge up to linux-2.6 head

Conflicts:

	drivers/scsi/jazz_esp.c

Same changes made by both SCSI and SPARC trees: problem with UTF-8
conversion in the copyright.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

4 files changed, 32 insertions, 18 deletions

diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 5a4a74c1097..9620d452d03 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -255,19 +255,25 @@ static struct page *read_sb_page(mddev_t *mddev, long offset, unsigned long inde
 
 }
 
-static int write_sb_page(mddev_t *mddev, long offset, struct page *page, int wait)
+static int write_sb_page(struct bitmap *bitmap, struct page *page, int wait)
 {
 	mdk_rdev_t *rdev;
 	struct list_head *tmp;
+	mddev_t *mddev = bitmap->mddev;
 
 	ITERATE_RDEV(mddev, rdev, tmp)
 		if (test_bit(In_sync, &rdev->flags)
-		    && !test_bit(Faulty, &rdev->flags))
+		    && !test_bit(Faulty, &rdev->flags)) {
+			int size = PAGE_SIZE;
+			if (page->index == bitmap->file_pages-1)
+				size = roundup(bitmap->last_page_size,
+					       bdev_hardsect_size(rdev->bdev));
 			md_super_write(mddev, rdev,
-				       (rdev->sb_offset<<1) + offset
+				       (rdev->sb_offset<<1) + bitmap->offset
 				       + page->index * (PAGE_SIZE/512),
-				       PAGE_SIZE,
+				       size,
 				       page);
+		}
 
 	if (wait)
 		md_super_wait(mddev);
@@ -282,7 +288,7 @@ static int write_page(struct bitmap *bitmap, struct page *page, int wait)
 	struct buffer_head *bh;
 
 	if (bitmap->file == NULL)
-		return write_sb_page(bitmap->mddev, bitmap->offset, page, wait);
+		return write_sb_page(bitmap, page, wait);
 
 	bh = page_buffers(page);
 
@@ -923,6 +929,7 @@ static int bitmap_init_from_disk(struct bitmap *bitmap, sector_t start)
 			}
 
 			bitmap->filemap[bitmap->file_pages++] = page;
+			bitmap->last_page_size = count;
 		}
 		paddr = kmap_atomic(page, KM_USER0);
 		if (bitmap->flags & BITMAP_HOSTENDIAN)
diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index d5ecd2d5304..19274108319 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -139,8 +139,6 @@ static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks)
 	if (!conf)
 		return NULL;
 
-	mddev->private = conf;
-
 	cnt = 0;
 	conf->array_size = 0;
 
@@ -232,7 +230,7 @@ static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks)
 	 * First calculate the device offsets.
 	 */
 	conf->disks[0].offset = 0;
-	for (i=1; i<mddev->raid_disks; i++)
+	for (i = 1; i < raid_disks; i++)
 		conf->disks[i].offset =
 			conf->disks[i-1].offset +
 			conf->disks[i-1].size;
@@ -244,7 +242,7 @@ static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks)
 	     curr_offset < conf->array_size;
 	     curr_offset += conf->hash_spacing) {
 
-		while (i < mddev->raid_disks-1 &&
+		while (i < raid_disks-1 &&
 		       curr_offset >= conf->disks[i+1].offset)
 			i++;
 
@@ -299,9 +297,11 @@ static int linear_add(mddev_t *mddev, mdk_rdev_t *rdev)
 	 */
 	linear_conf_t *newconf;
 
-	if (rdev->raid_disk != mddev->raid_disks)
+	if (rdev->saved_raid_disk != mddev->raid_disks)
 		return -EINVAL;
 
+	rdev->raid_disk = rdev->saved_raid_disk;
+
 	newconf = linear_conf(mddev,mddev->raid_disks+1);
 
 	if (!newconf)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index c10ce91b64e..1c54f3c1cca 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1298,8 +1298,9 @@ static void super_1_sync(mddev_t *mddev, mdk_rdev_t *rdev)
 	ITERATE_RDEV(mddev,rdev2,tmp)
 		if (rdev2->desc_nr+1 > max_dev)
 			max_dev = rdev2->desc_nr+1;
-	
-	sb->max_dev = cpu_to_le32(max_dev);
+
+	if (max_dev > le32_to_cpu(sb->max_dev))
+		sb->max_dev = cpu_to_le32(max_dev);
 	for (i=0; i<max_dev;i++)
 		sb->dev_roles[i] = cpu_to_le16(0xfffe);
 	
@@ -1365,10 +1366,14 @@ static int bind_rdev_to_array(mdk_rdev_t * rdev, mddev_t * mddev)
 	}
 	/* make sure rdev->size exceeds mddev->size */
 	if (rdev->size && (mddev->size == 0 || rdev->size < mddev->size)) {
-		if (mddev->pers)
-			/* Cannot change size, so fail */
-			return -ENOSPC;
-		else
+		if (mddev->pers) {
+			/* Cannot change size, so fail
+			 * If mddev->level <= 0, then we don't care
+			 * about aligning sizes (e.g. linear)
+			 */
+			if (mddev->level > 0)
+				return -ENOSPC;
+		} else
 			mddev->size = rdev->size;
 	}
 
@@ -2142,6 +2147,9 @@ static void analyze_sbs(mddev_t * mddev)
 			rdev->desc_nr = i++;
 			rdev->raid_disk = rdev->desc_nr;
 			set_bit(In_sync, &rdev->flags);
+		} else if (rdev->raid_disk >= mddev->raid_disks) {
+			rdev->raid_disk = -1;
+			clear_bit(In_sync, &rdev->flags);
 		}
 	}
 
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index dfe32149ad3..2c404f73a37 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -415,7 +415,7 @@ static int raid0_make_request (request_queue_t *q, struct bio *bio)
 	raid0_conf_t *conf = mddev_to_conf(mddev);
 	struct strip_zone *zone;
 	mdk_rdev_t *tmp_dev;
-	unsigned long chunk;
+	sector_t chunk;
 	sector_t block, rsect;
 	const int rw = bio_data_dir(bio);
 
@@ -470,7 +470,6 @@ static int raid0_make_request (request_queue_t *q, struct bio *bio)
 
 		sector_div(x, zone->nb_dev);
 		chunk = x;
-		BUG_ON(x != (sector_t)chunk);
 
 		x = block >> chunksize_bits;
 		tmp_dev = zone->dev[sector_div(x, zone->nb_dev)];