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Commit 7279694d authored by NeilBrown's avatar NeilBrown Committed by Shaohua Li
Browse files

md/multipath: replace printk() with pr_*() 



Also remove all messages about memory allocation failure.
page_alloc() reports those.

Signed-off-by: default avatarNeilBrown <neilb@suse.com>
Signed-off-by: default avatarShaohua Li <shli@fb.com>
parent a2e202af

drivers/md/multipath.c

+33 −57
Original line number Diff line number Diff line
@@ -52,7 +52,7 @@ static int multipath_map (struct mpconf *conf) 
	}

	rcu_read_unlock();



	printk(KERN_ERR "multipath_map(): no more operational IO paths?\n");

	pr_crit_ratelimited("multipath_map(): no more operational IO paths?\n");

	return (-1);

}
@@ -97,7 +97,7 @@ static void multipath_end_request(struct bio *bio) 
		 */

		char b[BDEVNAME_SIZE];

		md_error (mp_bh->mddev, rdev);

		printk(KERN_ERR "multipath: %s: rescheduling sector %llu\n",

		pr_info("multipath: %s: rescheduling sector %llu\n",

			bdevname(rdev->bdev,b),

			(unsigned long long)bio->bi_iter.bi_sector);

		multipath_reschedule_retry(mp_bh);
@@ -194,8 +194,7 @@ static void multipath_error (struct mddev *mddev, struct md_rdev *rdev) 
		 * first check if this is a queued request for a device

		 * which has just failed.

		 */

		printk(KERN_ALERT

		       "multipath: only one IO path left and IO error.\n");

		pr_warn("multipath: only one IO path left and IO error.\n");

		/* leave it active... it's all we have */

		return;

	}
@@ -210,10 +209,8 @@ static void multipath_error (struct mddev *mddev, struct md_rdev *rdev) 
	}

	set_bit(Faulty, &rdev->flags);

	set_bit(MD_CHANGE_DEVS, &mddev->flags);

	printk(KERN_ALERT "multipath: IO failure on %s,"

	       " disabling IO path.\n"

	       "multipath: Operation continuing"

	       " on %d IO paths.\n",

	pr_err("multipath: IO failure on %s, disabling IO path.\n"

	       "multipath: Operation continuing on %d IO paths.\n",

	       bdevname(rdev->bdev, b),

	       conf->raid_disks - mddev->degraded);

}
@@ -223,19 +220,19 @@ static void print_multipath_conf (struct mpconf *conf) 
	int i;

	struct multipath_info *tmp;



	printk("MULTIPATH conf printout:\n");

	pr_debug("MULTIPATH conf printout:\n");

	if (!conf) {

		printk("(conf==NULL)\n");

		pr_debug("(conf==NULL)\n");

		return;

	}

	printk(" --- wd:%d rd:%d\n", conf->raid_disks - conf->mddev->degraded,

	pr_debug(" --- wd:%d rd:%d\n", conf->raid_disks - conf->mddev->degraded,

		 conf->raid_disks);



	for (i = 0; i < conf->raid_disks; i++) {

		char b[BDEVNAME_SIZE];

		tmp = conf->multipaths + i;

		if (tmp->rdev)

			printk(" disk%d, o:%d, dev:%s\n",

			pr_debug(" disk%d, o:%d, dev:%s\n",

				 i,!test_bit(Faulty, &tmp->rdev->flags),

				 bdevname(tmp->rdev->bdev,b));

	}
@@ -292,8 +289,7 @@ static int multipath_remove_disk(struct mddev *mddev, struct md_rdev *rdev) 
	if (rdev == p->rdev) {

		if (test_bit(In_sync, &rdev->flags) ||

		    atomic_read(&rdev->nr_pending)) {

			printk(KERN_ERR "hot-remove-disk, slot %d is identified"

			       " but is still operational!\n", number);

			pr_warn("hot-remove-disk, slot %d is identified but is still operational!\n", number);

			err = -EBUSY;

			goto abort;

		}
@@ -346,14 +342,12 @@ static void multipathd(struct md_thread *thread) 
		bio->bi_iter.bi_sector = mp_bh->master_bio->bi_iter.bi_sector;



		if ((mp_bh->path = multipath_map (conf))<0) {

			printk(KERN_ALERT "multipath: %s: unrecoverable IO read"

				" error for block %llu\n",

			pr_err("multipath: %s: unrecoverable IO read error for block %llu\n",

			       bdevname(bio->bi_bdev,b),

			       (unsigned long long)bio->bi_iter.bi_sector);

			multipath_end_bh_io(mp_bh, -EIO);

		} else {

			printk(KERN_ERR "multipath: %s: redirecting sector %llu"

				" to another IO path\n",

			pr_err("multipath: %s: redirecting sector %llu to another IO path\n",

			       bdevname(bio->bi_bdev,b),

			       (unsigned long long)bio->bi_iter.bi_sector);

			*bio = *(mp_bh->master_bio);
@@ -389,7 +383,7 @@ static int multipath_run (struct mddev *mddev) 
		return -EINVAL;



	if (mddev->level != LEVEL_MULTIPATH) {

		printk("multipath: %s: raid level not set to multipath IO (%d)\n",

		pr_warn("multipath: %s: raid level not set to multipath IO (%d)\n",

			mdname(mddev), mddev->level);

		goto out;

	}
@@ -401,21 +395,13 @@ static int multipath_run (struct mddev *mddev) 


	conf = kzalloc(sizeof(struct mpconf), GFP_KERNEL);

	mddev->private = conf;

	if (!conf) {

		printk(KERN_ERR

			"multipath: couldn't allocate memory for %s\n",

			mdname(mddev));

	if (!conf)

		goto out;

	}



	conf->multipaths = kzalloc(sizeof(struct multipath_info)*mddev->raid_disks,

				   GFP_KERNEL);

	if (!conf->multipaths) {

		printk(KERN_ERR

			"multipath: couldn't allocate memory for %s\n",

			mdname(mddev));

	if (!conf->multipaths)

		goto out_free_conf;

	}



	working_disks = 0;

	rdev_for_each(rdev, mddev) {
@@ -439,7 +425,7 @@ static int multipath_run (struct mddev *mddev) 
	INIT_LIST_HEAD(&conf->retry_list);



	if (!working_disks) {

		printk(KERN_ERR "multipath: no operational IO paths for %s\n",

		pr_warn("multipath: no operational IO paths for %s\n",

			mdname(mddev));

		goto out_free_conf;

	}
@@ -447,25 +433,15 @@ static int multipath_run (struct mddev *mddev) 


	conf->pool = mempool_create_kmalloc_pool(NR_RESERVED_BUFS,

						 sizeof(struct multipath_bh));

	if (conf->pool == NULL) {

		printk(KERN_ERR

			"multipath: couldn't allocate memory for %s\n",

			mdname(mddev));

	if (conf->pool == NULL)

		goto out_free_conf;

	}



	{

	mddev->thread = md_register_thread(multipathd, mddev,

					   "multipath");

		if (!mddev->thread) {

			printk(KERN_ERR "multipath: couldn't allocate thread"

				" for %s\n", mdname(mddev));

	if (!mddev->thread)

		goto out_free_conf;

		}

	}



	printk(KERN_INFO

		"multipath: array %s active with %d out of %d IO paths\n",

	pr_info("multipath: array %s active with %d out of %d IO paths\n",

		mdname(mddev), conf->raid_disks - mddev->degraded,

		mddev->raid_disks);

	/*