diff options
Diffstat (limited to 'fs/btrfs/volumes.h')
| -rw-r--r-- | fs/btrfs/volumes.h | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index bf27ac07d315..232f02bd214f 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -39,10 +39,10 @@ struct btrfs_io_geometry { #if BITS_PER_LONG==32 && defined(CONFIG_SMP) #include <linux/seqlock.h> #define __BTRFS_NEED_DEVICE_DATA_ORDERED -#define btrfs_device_data_ordered_init(device) \ - seqcount_init(&device->data_seqcount) +#define btrfs_device_data_ordered_init(device, info) \ + seqcount_mutex_init(&device->data_seqcount, &info->chunk_mutex) #else -#define btrfs_device_data_ordered_init(device) do { } while (0) +#define btrfs_device_data_ordered_init(device, info) do { } while (0) #endif #define BTRFS_DEV_STATE_WRITEABLE (0) @@ -50,6 +50,7 @@ struct btrfs_io_geometry { #define BTRFS_DEV_STATE_MISSING (2) #define BTRFS_DEV_STATE_REPLACE_TGT (3) #define BTRFS_DEV_STATE_FLUSH_SENT (4) +#define BTRFS_DEV_STATE_NO_READA (5) struct btrfs_device { struct list_head dev_list; /* device_list_mutex */ @@ -71,7 +72,8 @@ struct btrfs_device { blk_status_t last_flush_error; #ifdef __BTRFS_NEED_DEVICE_DATA_ORDERED - seqcount_t data_seqcount; + /* A seqcount_t with associated chunk_mutex (for lockdep) */ + seqcount_mutex_t data_seqcount; #endif /* the internal btrfs device id */ @@ -162,11 +164,9 @@ btrfs_device_get_##name(const struct btrfs_device *dev) \ static inline void \ btrfs_device_set_##name(struct btrfs_device *dev, u64 size) \ { \ - preempt_disable(); \ write_seqcount_begin(&dev->data_seqcount); \ dev->name = size; \ write_seqcount_end(&dev->data_seqcount); \ - preempt_enable(); \ } #elif BITS_PER_LONG==32 && defined(CONFIG_PREEMPTION) #define BTRFS_DEVICE_GETSET_FUNCS(name) \ |