btrfs: move space_info to space-info.h

Migrate the struct definition and the one helper that's in ctree.h into
space-info.h

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 1 insertions, 72 deletions

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 5e89e4d5b065..1d6a60f437a6 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -37,6 +37,7 @@ struct btrfs_trans_handle;
 struct btrfs_transaction;
 struct btrfs_pending_snapshot;
 struct btrfs_delayed_ref_root;
+struct btrfs_space_info;
 extern struct kmem_cache *btrfs_trans_handle_cachep;
 extern struct kmem_cache *btrfs_bit_radix_cachep;
 extern struct kmem_cache *btrfs_path_cachep;
@@ -402,72 +403,6 @@ struct raid_kobject {
 	struct list_head list;
 };
 
-struct btrfs_space_info {
-	spinlock_t lock;
-
-	u64 total_bytes;	/* total bytes in the space,
-				   this doesn't take mirrors into account */
-	u64 bytes_used;		/* total bytes used,
-				   this doesn't take mirrors into account */
-	u64 bytes_pinned;	/* total bytes pinned, will be freed when the
-				   transaction finishes */
-	u64 bytes_reserved;	/* total bytes the allocator has reserved for
-				   current allocations */
-	u64 bytes_may_use;	/* number of bytes that may be used for
-				   delalloc/allocations */
-	u64 bytes_readonly;	/* total bytes that are read only */
-
-	u64 max_extent_size;	/* This will hold the maximum extent size of
-				   the space info if we had an ENOSPC in the
-				   allocator. */
-
-	unsigned int full:1;	/* indicates that we cannot allocate any more
-				   chunks for this space */
-	unsigned int chunk_alloc:1;	/* set if we are allocating a chunk */
-
-	unsigned int flush:1;		/* set if we are trying to make space */
-
-	unsigned int force_alloc;	/* set if we need to force a chunk
-					   alloc for this space */
-
-	u64 disk_used;		/* total bytes used on disk */
-	u64 disk_total;		/* total bytes on disk, takes mirrors into
-				   account */
-
-	u64 flags;
-
-	/*
-	 * bytes_pinned is kept in line with what is actually pinned, as in
-	 * we've called update_block_group and dropped the bytes_used counter
-	 * and increased the bytes_pinned counter.  However this means that
-	 * bytes_pinned does not reflect the bytes that will be pinned once the
-	 * delayed refs are flushed, so this counter is inc'ed every time we
-	 * call btrfs_free_extent so it is a realtime count of what will be
-	 * freed once the transaction is committed.  It will be zeroed every
-	 * time the transaction commits.
-	 */
-	struct percpu_counter total_bytes_pinned;
-
-	struct list_head list;
-	/* Protected by the spinlock 'lock'. */
-	struct list_head ro_bgs;
-	struct list_head priority_tickets;
-	struct list_head tickets;
-	/*
-	 * tickets_id just indicates the next ticket will be handled, so note
-	 * it's not stored per ticket.
-	 */
-	u64 tickets_id;
-
-	struct rw_semaphore groups_sem;
-	/* for block groups in our same type */
-	struct list_head block_groups[BTRFS_NR_RAID_TYPES];
-	wait_queue_head_t wait;
-
-	struct kobject kobj;
-	struct kobject *block_group_kobjs[BTRFS_NR_RAID_TYPES];
-};
-
 /*
  * Types of block reserves
  */
@@ -2693,12 +2628,6 @@ static inline u64 btrfs_extref_hash(u64 parent_objectid, const char *name,
        return (u64) crc32c(parent_objectid, name, len);
 }
 
-static inline bool btrfs_mixed_space_info(struct btrfs_space_info *space_info)
-{
-	return ((space_info->flags & BTRFS_BLOCK_GROUP_METADATA) &&
-		(space_info->flags & BTRFS_BLOCK_GROUP_DATA));
-}
-
 static inline gfp_t btrfs_alloc_write_mask(struct address_space *mapping)
 {
 	return mapping_gfp_constraint(mapping, ~__GFP_FS);