X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Fmd%2Fmultipath.c;h=1cc9de44ce86c2cce64c58fb72d8b3f33245a83f;hb=aad61439e6a00bdb72cb649e11f6e166590c5f66;hp=145cdc5ad008090e67cabe449e10d8cac5395ff1;hpb=2ecc26b87a2b3e8650d3c7fe3fc85a8c73d5560d;p=powerpc.git

diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index 145cdc5ad0..1cc9de44ce 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -35,23 +35,6 @@
 #define	NR_RESERVED_BUFS	32
 
 
-static mdk_personality_t multipath_personality;
-
-
-static void *mp_pool_alloc(gfp_t gfp_flags, void *data)
-{
-	struct multipath_bh *mpb;
-	mpb = kmalloc(sizeof(*mpb), gfp_flags);
-	if (mpb) 
-		memset(mpb, 0, sizeof(*mpb));
-	return mpb;
-}
-
-static void mp_pool_free(void *mpb, void *data)
-{
-	kfree(mpb);
-}
-
 static int multipath_map (multipath_conf_t *conf)
 {
 	int i, disks = conf->raid_disks;
@@ -308,6 +291,7 @@ static void print_multipath_conf (multipath_conf_t *conf)
 static int multipath_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
 {
 	multipath_conf_t *conf = mddev->private;
+	struct request_queue *q;
 	int found = 0;
 	int path;
 	struct multipath_info *p;
@@ -316,8 +300,8 @@ static int multipath_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
 
 	for (path=0; path<mddev->raid_disks; path++) 
 		if ((p=conf->multipaths+path)->rdev == NULL) {
-			blk_queue_stack_limits(mddev->queue,
-					       rdev->bdev->bd_disk->queue);
+			q = rdev->bdev->bd_disk->queue;
+			blk_queue_stack_limits(mddev->queue, q);
 
 		/* as we don't honour merge_bvec_fn, we must never risk
 		 * violating it, so limit ->max_sector to one PAGE, as
@@ -325,7 +309,7 @@ static int multipath_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
 		 * (Note: it is very unlikely that a device with
 		 * merge_bvec_fn will be involved in multipath.)
 		 */
-			if (rdev->bdev->bd_disk->queue->merge_bvec_fn &&
+			if (q->merge_bvec_fn &&
 			    mddev->queue->max_sectors > (PAGE_SIZE>>9))
 				blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9);
 
@@ -444,7 +428,7 @@ static int multipath_run (mddev_t *mddev)
 	 * should be freed in multipath_stop()]
 	 */
 
-	conf = kmalloc(sizeof(multipath_conf_t), GFP_KERNEL);
+	conf = kzalloc(sizeof(multipath_conf_t), GFP_KERNEL);
 	mddev->private = conf;
 	if (!conf) {
 		printk(KERN_ERR 
@@ -452,9 +436,8 @@ static int multipath_run (mddev_t *mddev)
 			mdname(mddev));
 		goto out;
 	}
-	memset(conf, 0, sizeof(*conf));
 
-	conf->multipaths = kmalloc(sizeof(struct multipath_info)*mddev->raid_disks,
+	conf->multipaths = kzalloc(sizeof(struct multipath_info)*mddev->raid_disks,
 				   GFP_KERNEL);
 	if (!conf->multipaths) {
 		printk(KERN_ERR 
@@ -462,7 +445,6 @@ static int multipath_run (mddev_t *mddev)
 			mdname(mddev));
 		goto out_free_conf;
 	}
-	memset(conf->multipaths, 0, sizeof(struct multipath_info)*mddev->raid_disks);
 
 	conf->working_disks = 0;
 	ITERATE_RDEV(mddev,rdev,tmp) {
@@ -500,9 +482,8 @@ static int multipath_run (mddev_t *mddev)
 	}
 	mddev->degraded = conf->raid_disks = conf->working_disks;
 
-	conf->pool = mempool_create(NR_RESERVED_BUFS,
-				    mp_pool_alloc, mp_pool_free,
-				    NULL);
+	conf->pool = mempool_create_kzalloc_pool(NR_RESERVED_BUFS,
+						 sizeof(struct multipath_bh));
 	if (conf->pool == NULL) {
 		printk(KERN_ERR 
 			"multipath: couldn't allocate memory for %s\n",
@@ -557,9 +538,10 @@ static int multipath_stop (mddev_t *mddev)
 	return 0;
 }
 
-static mdk_personality_t multipath_personality=
+static struct mdk_personality multipath_personality =
 {
 	.name		= "multipath",
+	.level		= LEVEL_MULTIPATH,
 	.owner		= THIS_MODULE,
 	.make_request	= multipath_make_request,
 	.run		= multipath_run,
@@ -572,15 +554,17 @@ static mdk_personality_t multipath_personality=
 
 static int __init multipath_init (void)
 {
-	return register_md_personality (MULTIPATH, &multipath_personality);
+	return register_md_personality (&multipath_personality);
 }
 
 static void __exit multipath_exit (void)
 {
-	unregister_md_personality (MULTIPATH);
+	unregister_md_personality (&multipath_personality);
 }
 
 module_init(multipath_init);
 module_exit(multipath_exit);
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("md-personality-7"); /* MULTIPATH */
+MODULE_ALIAS("md-multipath");
+MODULE_ALIAS("md-level--4");