btrfs: add space_info argument to btrfs_chunk_alloc()

Take a btrfs_space_info argument in btrfs_chunk_alloc(). New block group
will belong to that space_info.

Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

5 files changed, 27 insertions, 16 deletions

diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c
index eaf431b9b44c..1bcbce3f23b8 100644
--- a/fs/btrfs/block-group.c
+++ b/fs/btrfs/block-group.c
@@ -2966,6 +2966,7 @@ int btrfs_inc_block_group_ro(struct btrfs_block_group *cache,
 			     bool do_chunk_alloc)
 {
 	struct btrfs_fs_info *fs_info = cache->fs_info;
+	struct btrfs_space_info *space_info = cache->space_info;
 	struct btrfs_trans_handle *trans;
 	struct btrfs_root *root = btrfs_block_group_root(fs_info);
 	u64 alloc_flags;
@@ -3018,7 +3019,7 @@ int btrfs_inc_block_group_ro(struct btrfs_block_group *cache,
 		 */
 		alloc_flags = btrfs_get_alloc_profile(fs_info, cache->flags);
 		if (alloc_flags != cache->flags) {
-			ret = btrfs_chunk_alloc(trans, alloc_flags,
+			ret = btrfs_chunk_alloc(trans, space_info, alloc_flags,
 						CHUNK_ALLOC_FORCE);
 			/*
 			 * ENOSPC is allowed here, we may have enough space
@@ -3046,15 +3047,15 @@ int btrfs_inc_block_group_ro(struct btrfs_block_group *cache,
 	    (cache->flags & BTRFS_BLOCK_GROUP_SYSTEM))
 		goto unlock_out;
 
-	alloc_flags = btrfs_get_alloc_profile(fs_info, cache->space_info->flags);
-	ret = btrfs_chunk_alloc(trans, alloc_flags, CHUNK_ALLOC_FORCE);
+	alloc_flags = btrfs_get_alloc_profile(fs_info, space_info->flags);
+	ret = btrfs_chunk_alloc(trans, space_info, alloc_flags, CHUNK_ALLOC_FORCE);
 	if (ret < 0)
 		goto out;
 	/*
 	 * We have allocated a new chunk. We also need to activate that chunk to
 	 * grant metadata tickets for zoned filesystem.
 	 */
-	ret = btrfs_zoned_activate_one_bg(fs_info, cache->space_info, true);
+	ret = btrfs_zoned_activate_one_bg(fs_info, space_info, true);
 	if (ret < 0)
 		goto out;
 
@@ -3898,8 +3899,15 @@ static bool should_alloc_chunk(const struct btrfs_fs_info *fs_info,
 int btrfs_force_chunk_alloc(struct btrfs_trans_handle *trans, u64 type)
 {
 	u64 alloc_flags = btrfs_get_alloc_profile(trans->fs_info, type);
+	struct btrfs_space_info *space_info;
+
+	space_info = btrfs_find_space_info(trans->fs_info, type);
+	if (!space_info) {
+		DEBUG_WARN();
+		return -EINVAL;
+	}
 
-	return btrfs_chunk_alloc(trans, alloc_flags, CHUNK_ALLOC_FORCE);
+	return btrfs_chunk_alloc(trans, space_info, alloc_flags, CHUNK_ALLOC_FORCE);
 }
 
 static struct btrfs_block_group *do_chunk_alloc(struct btrfs_trans_handle *trans, u64 flags)
@@ -4095,6 +4103,8 @@ out:
  *
  * This function, btrfs_chunk_alloc(), belongs to phase 1.
  *
+ * @space_info: specify which space_info the new chunk should belong to.
+ *
  * If @force is CHUNK_ALLOC_FORCE:
  *    - return 1 if it successfully allocates a chunk,
  *    - return errors including -ENOSPC otherwise.
@@ -4103,11 +4113,11 @@ out:
  *    - return 1 if it successfully allocates a chunk,
  *    - return errors including -ENOSPC otherwise.
  */
-int btrfs_chunk_alloc(struct btrfs_trans_handle *trans, u64 flags,
+int btrfs_chunk_alloc(struct btrfs_trans_handle *trans,
+		      struct btrfs_space_info *space_info, u64 flags,
 		      enum btrfs_chunk_alloc_enum force)
 {
 	struct btrfs_fs_info *fs_info = trans->fs_info;
-	struct btrfs_space_info *space_info;
 	struct btrfs_block_group *ret_bg;
 	bool wait_for_alloc = false;
 	bool should_alloc = false;
@@ -4146,9 +4156,6 @@ int btrfs_chunk_alloc(struct btrfs_trans_handle *trans, u64 flags,
 	if (flags & BTRFS_BLOCK_GROUP_SYSTEM)
 		return -ENOSPC;
 
-	space_info = btrfs_find_space_info(fs_info, flags);
-	ASSERT(space_info);
-
 	do {
 		spin_lock(&space_info->lock);
 		if (force < space_info->force_alloc)
diff --git a/fs/btrfs/block-group.h b/fs/btrfs/block-group.h
index 36937eeab9b8..c01f3af726a1 100644
--- a/fs/btrfs/block-group.h
+++ b/fs/btrfs/block-group.h
@@ -342,7 +342,8 @@ int btrfs_add_reserved_bytes(struct btrfs_block_group *cache,
 			     bool force_wrong_size_class);
 void btrfs_free_reserved_bytes(struct btrfs_block_group *cache,
 			       u64 num_bytes, int delalloc);
-int btrfs_chunk_alloc(struct btrfs_trans_handle *trans, u64 flags,
+int btrfs_chunk_alloc(struct btrfs_trans_handle *trans,
+		      struct btrfs_space_info *space_info, u64 flags,
 		      enum btrfs_chunk_alloc_enum force);
 int btrfs_force_chunk_alloc(struct btrfs_trans_handle *trans, u64 type);
 void check_system_chunk(struct btrfs_trans_handle *trans, const u64 type);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 527bffab75e5..32255a780d13 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4130,6 +4130,7 @@ static int can_allocate_chunk(struct btrfs_fs_info *fs_info,
 static int find_free_extent_update_loop(struct btrfs_fs_info *fs_info,
 					struct btrfs_key *ins,
 					struct find_free_extent_ctl *ffe_ctl,
+					struct btrfs_space_info *space_info,
 					bool full_search)
 {
 	struct btrfs_root *root = fs_info->chunk_root;
@@ -4184,7 +4185,7 @@ static int find_free_extent_update_loop(struct btrfs_fs_info *fs_info,
 				return ret;
 			}
 
-			ret = btrfs_chunk_alloc(trans, ffe_ctl->flags,
+			ret = btrfs_chunk_alloc(trans, space_info, ffe_ctl->flags,
 						CHUNK_ALLOC_FORCE_FOR_EXTENT);
 
 			/* Do not bail out on ENOSPC since we can do more. */
@@ -4597,7 +4598,8 @@ loop:
 	}
 	up_read(&space_info->groups_sem);
 
-	ret = find_free_extent_update_loop(fs_info, ins, ffe_ctl, full_search);
+	ret = find_free_extent_update_loop(fs_info, ins, ffe_ctl, space_info,
+					   full_search);
 	if (ret > 0)
 		goto search;
 
diff --git a/fs/btrfs/space-info.c b/fs/btrfs/space-info.c
index ef33837923f4..15d43d3c7c58 100644
--- a/fs/btrfs/space-info.c
+++ b/fs/btrfs/space-info.c
@@ -817,7 +817,7 @@ static void flush_space(struct btrfs_fs_info *fs_info,
 			ret = PTR_ERR(trans);
 			break;
 		}
-		ret = btrfs_chunk_alloc(trans,
+		ret = btrfs_chunk_alloc(trans, space_info,
 				btrfs_get_alloc_profile(fs_info, space_info->flags),
 				(state == ALLOC_CHUNK) ? CHUNK_ALLOC_NO_FORCE :
 					CHUNK_ALLOC_FORCE);
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 5a58d97a5dfc..cb99414de57b 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -761,9 +761,10 @@ got_it:
 	 * value here.
 	 */
 	if (do_chunk_alloc && num_bytes) {
-		u64 flags = h->block_rsv->space_info->flags;
+		struct btrfs_space_info *space_info = h->block_rsv->space_info;
+		u64 flags = space_info->flags;
 
-		btrfs_chunk_alloc(h, btrfs_get_alloc_profile(fs_info, flags),
+		btrfs_chunk_alloc(h, space_info, btrfs_get_alloc_profile(fs_info, flags),
 				  CHUNK_ALLOC_NO_FORCE);
 	}