From d6065f7bf8bec170c9c56524a250093ce73ca5d9 Mon Sep 17 00:00:00 2001 From: Suzanne Wood Date: Tue, 8 Nov 2005 21:39:27 -0800 Subject: [PATCH] md: provide proper rcu_dereference / rcu_assign_pointer annotations in md Acked-by: Signed-off-by: Suzanne Wood Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/raid5.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers/md/raid5.c') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index ce154553aca..061d265ed94 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -1374,7 +1374,7 @@ static void handle_stripe(struct stripe_head *sh) bi->bi_end_io = raid5_end_read_request; rcu_read_lock(); - rdev = conf->disks[i].rdev; + rdev = rcu_dereference(conf->disks[i].rdev); if (rdev && rdev->faulty) rdev = NULL; if (rdev) @@ -1448,7 +1448,7 @@ static void unplug_slaves(mddev_t *mddev) rcu_read_lock(); for (i=0; iraid_disks; i++) { - mdk_rdev_t *rdev = conf->disks[i].rdev; + mdk_rdev_t *rdev = rcu_dereference(conf->disks[i].rdev); if (rdev && !rdev->faulty && atomic_read(&rdev->nr_pending)) { request_queue_t *r_queue = bdev_get_queue(rdev->bdev); @@ -1493,7 +1493,7 @@ static int raid5_issue_flush(request_queue_t *q, struct gendisk *disk, rcu_read_lock(); for (i=0; iraid_disks && ret == 0; i++) { - mdk_rdev_t *rdev = conf->disks[i].rdev; + mdk_rdev_t *rdev = rcu_dereference(conf->disks[i].rdev); if (rdev && !rdev->faulty) { struct block_device *bdev = rdev->bdev; request_queue_t *r_queue = bdev_get_queue(bdev); @@ -2165,7 +2165,7 @@ static int raid5_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) found = 1; if (rdev->saved_raid_disk != disk) conf->fullsync = 1; - p->rdev = rdev; + rcu_assign_pointer(p->rdev, rdev); break; } print_raid5_conf(conf); -- cgit v1.2.3