diff options
Diffstat (limited to 'fs/btrfs/raid56.c')
| -rw-r--r-- | fs/btrfs/raid56.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c index f3d0576dd327..57a2ac721985 100644 --- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -35,6 +35,22 @@ #define RBIO_CACHE_SIZE 1024 +#define BTRFS_STRIPE_HASH_TABLE_BITS 11 + +/* Used by the raid56 code to lock stripes for read/modify/write */ +struct btrfs_stripe_hash { + struct list_head hash_list; + spinlock_t lock; +}; + +/* Used by the raid56 code to lock stripes for read/modify/write */ +struct btrfs_stripe_hash_table { + struct list_head stripe_cache; + spinlock_t cache_lock; + int cache_size; + struct btrfs_stripe_hash table[]; +}; + enum btrfs_rbio_ops { BTRFS_RBIO_WRITE, BTRFS_RBIO_READ_REBUILD, |