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/multipath.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers/md/multipath.c') diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c index c06f4474192b..ae2c5fd6105d 100644 --- a/drivers/md/multipath.c +++ b/drivers/md/multipath.c @@ -63,7 +63,7 @@ static int multipath_map (multipath_conf_t *conf) rcu_read_lock(); for (i = 0; i < disks; i++) { - mdk_rdev_t *rdev = conf->multipaths[i].rdev; + mdk_rdev_t *rdev = rcu_dereference(conf->multipaths[i].rdev); if (rdev && rdev->in_sync) { atomic_inc(&rdev->nr_pending); rcu_read_unlock(); @@ -139,7 +139,7 @@ static void unplug_slaves(mddev_t *mddev) rcu_read_lock(); for (i=0; iraid_disks; i++) { - mdk_rdev_t *rdev = conf->multipaths[i].rdev; + mdk_rdev_t *rdev = rcu_dereference(conf->multipaths[i].rdev); if (rdev && !rdev->faulty && atomic_read(&rdev->nr_pending)) { request_queue_t *r_queue = bdev_get_queue(rdev->bdev); @@ -224,7 +224,7 @@ static int multipath_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->multipaths[i].rdev; + mdk_rdev_t *rdev = rcu_dereference(conf->multipaths[i].rdev); if (rdev && !rdev->faulty) { struct block_device *bdev = rdev->bdev; request_queue_t *r_queue = bdev_get_queue(bdev); @@ -331,7 +331,7 @@ static int multipath_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) conf->working_disks++; rdev->raid_disk = path; rdev->in_sync = 1; - p->rdev = rdev; + rcu_assign_pointer(p->rdev, rdev); found = 1; } -- cgit v1.2.1