diff options
| author | Suzanne Wood <suzannew@cs.pdx.edu> | 2005-11-09 08:39:27 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-09 18:56:37 +0300 |
| commit | d6065f7bf8bec170c9c56524a250093ce73ca5d9 (patch) | |
| tree | 336c7db10aa8cee48386171e3de7569fca01dcfd /drivers/md/multipath.c | |
| parent | 9d88883e68f404d5581bd391713ceef470ea53a9 (diff) | |
| download | linux-d6065f7bf8bec170c9c56524a250093ce73ca5d9.tar.xz | |
[PATCH] md: provide proper rcu_dereference / rcu_assign_pointer annotations in md
Acked-by: <paulmck@us.ibm.com>
Signed-off-by: Suzanne Wood <suzannew@cs.pdx.edu>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/md/multipath.c')
| -rw-r--r-- | drivers/md/multipath.c | 8 |
1 files changed, 4 insertions, 4 deletions
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; i<mddev->raid_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; i<mddev->raid_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; } |