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Commit a42f9d83 authored by majianpeng's avatar majianpeng Committed by NeilBrown
Browse files

md/raid1:Remove unnecessary rcu_dereference(conf->mirrors[i].rdev). 



Because rde->nr_pending > 0,so can not remove this disk.
And in any case, we aren't holding rcu_read_lock()

Signed-off-by: default avatarmajianpeng <majianpeng@gmail.com>
Signed-off-by: default avatarNeilBrown <neilb@suse.de>
parent 24b961f8

drivers/md/raid1.c

+1 −2
Original line number Diff line number Diff line
@@ -2386,8 +2386,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, int *skipp 
		int ok = 1;

		for (i = 0 ; i < conf->raid_disks * 2 ; i++)

			if (r1_bio->bios[i]->bi_end_io == end_sync_write) {

				struct md_rdev *rdev =

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

				struct md_rdev *rdev = conf->mirrors[i].rdev;

				ok = rdev_set_badblocks(rdev, sector_nr,

							min_bad, 0

					) && ok;