diff options
| author | Suzanne Wood <suzannew@cs.pdx.edu> | 2005-11-08 21:39:27 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-09 07:56:37 -0800 |
| commit | d6065f7bf8bec170c9c56524a250093ce73ca5d9 (patch) | |
| tree | 336c7db10aa8cee48386171e3de7569fca01dcfd /drivers/md/raid5.c | |
| parent | 9d88883e68f404d5581bd391713ceef470ea53a9 (diff) | |
| download | linux-d6065f7bf8bec170c9c56524a250093ce73ca5d9.tar.bz2 | |
[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/raid5.c')
| -rw-r--r-- | drivers/md/raid5.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index ce154553aca5..061d265ed94e 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; i<mddev->raid_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; i<mddev->raid_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); |