summaryrefslogtreecommitdiffstats
path: root/fs/btrfs
diff options
context:
space:
mode:
authorSebastian Andrzej Siewior <bigeasy@linutronix.de>2016-01-15 14:37:15 +0100
committerDavid Sterba <dsterba@suse.com>2016-01-15 19:28:43 +0100
commit546bed631203344611f42b2af1d224d2eedb4e6b (patch)
tree545bad08e026899889863a2482e09a9de3a6f326 /fs/btrfs
parentb7c47bbb2d1856330f71ba04c8eb03b39aca87cd (diff)
downloadtalos-obmc-linux-546bed631203344611f42b2af1d224d2eedb4e6b.tar.gz
talos-obmc-linux-546bed631203344611f42b2af1d224d2eedb4e6b.zip
btrfs: initialize the seq counter in struct btrfs_device
I managed to trigger this: | INFO: trying to register non-static key. | the code is fine but needs lockdep annotation. | turning off the locking correctness validator. | CPU: 1 PID: 781 Comm: systemd-gpt-aut Not tainted 4.4.0-rt2+ #14 | Hardware name: ARM-Versatile Express | [<80307cec>] (dump_stack) | [<80070e98>] (__lock_acquire) | [<8007184c>] (lock_acquire) | [<80287800>] (btrfs_ioctl) | [<8012a8d4>] (do_vfs_ioctl) | [<8012ac14>] (SyS_ioctl) so I think that btrfs_device_data_ordered_init() is not invoked behind a macro somewhere. Fixes: 7cc8e58d53cd ("Btrfs: fix unprotected device's variants on 32bits machine") Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/volumes.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 574a717fcb6e..21fbcedb6542 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -232,6 +232,7 @@ static struct btrfs_device *__alloc_device(void)
spin_lock_init(&dev->reada_lock);
atomic_set(&dev->reada_in_flight, 0);
atomic_set(&dev->dev_stats_ccnt, 0);
+ btrfs_device_data_ordered_init(dev);
INIT_RADIX_TREE(&dev->reada_zones, GFP_NOFS & ~__GFP_DIRECT_RECLAIM);
INIT_RADIX_TREE(&dev->reada_extents, GFP_NOFS & ~__GFP_DIRECT_RECLAIM);
OpenPOWER on IntegriCloud