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Commit 1294b9c9 authored by NeilBrown's avatar NeilBrown
Browse files

md/raid10: simplify/reindent some loops. 



When a loop ends with a large if, it can be neater to change the
if to invert the condition and just 'continue'.
Then the body of the if can be indented to a lower level.

Signed-off-by: default avatarNeilBrown <neilb@suse.de>
parent b84db560

drivers/md/raid10.c

+65 −62
Original line number Diff line number Diff line
@@ -1533,8 +1533,10 @@ static void fix_read_error(conf_t *conf, mddev_t *mddev, r10bio_t *r10_bio) 
			sl--;

			d = r10_bio->devs[sl].devnum;

			rdev = rcu_dereference(conf->mirrors[d].rdev);

			if (rdev &&

			    test_bit(In_sync, &rdev->flags)) {

			if (!rdev ||

			    !test_bit(In_sync, &rdev->flags))

				continue;



			atomic_inc(&rdev->nr_pending);

			rcu_read_unlock();

			if (sync_page_io(rdev,
@@ -1560,18 +1562,19 @@ static void fix_read_error(conf_t *conf, mddev_t *mddev, r10bio_t *r10_bio) 
			rdev_dec_pending(rdev, mddev);

			rcu_read_lock();

		}

		}

		sl = start;

		while (sl != r10_bio->read_slot) {

			char b[BDEVNAME_SIZE];



			if (sl==0)

				sl = conf->copies;

			sl--;

			d = r10_bio->devs[sl].devnum;

			rdev = rcu_dereference(conf->mirrors[d].rdev);

			if (rdev &&

			    test_bit(In_sync, &rdev->flags)) {

				char b[BDEVNAME_SIZE];

			if (!rdev ||

			    !test_bit(In_sync, &rdev->flags))

				continue;



			atomic_inc(&rdev->nr_pending);

			rcu_read_unlock();

			if (sync_page_io(rdev,
@@ -1588,7 +1591,8 @@ static void fix_read_error(conf_t *conf, mddev_t *mddev, r10bio_t *r10_bio) 
				       (unsigned long long)(

					       sect + rdev->data_offset),

				       bdevname(rdev->bdev, b));

					printk(KERN_NOTICE "md/raid10:%s: %s: failing drive\n",

				printk(KERN_NOTICE "md/raid10:%s: %s: failing "

				       "drive\n",

				       mdname(mddev),

				       bdevname(rdev->bdev, b));
@@ -1607,7 +1611,6 @@ static void fix_read_error(conf_t *conf, mddev_t *mddev, r10bio_t *r10_bio) 
			rdev_dec_pending(rdev, mddev);

			rcu_read_lock();

		}

		}

		rcu_read_unlock();



		sectors -= s;