From: Josef Bacik <josef@toxicpanda.com>
Date: Wed, 19 Jun 2019 13:47:18 -0400
Subject: btrfs: export btrfs_block_rsv_add_bytes
Git-commit: 0b50174ad5e9fb32abcfdb10b1a14e76a72b20e6
Patch-mainline: v5.3-rc1
References: bsc#1165949

This is used in a few places, we need to make sure it's exported so we
can move it around.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Acked-by: Nikolay Borisov <nborisov@suse.com>
---
 fs/btrfs/block-rsv.h   |    2 ++
 fs/btrfs/extent-tree.c |   18 +++++++++---------
 2 files changed, 11 insertions(+), 9 deletions(-)

--- a/fs/btrfs/block-rsv.h
+++ b/fs/btrfs/block-rsv.h
@@ -73,5 +73,7 @@ int btrfs_cond_migrate_bytes(struct btrf
 void btrfs_block_rsv_release(struct btrfs_fs_info *fs_info,
 			     struct btrfs_block_rsv *block_rsv,
 			     u64 num_bytes);
+void btrfs_block_rsv_add_bytes(struct btrfs_block_rsv *block_rsv,
+			       u64 num_bytes, bool update_size);
 
 #endif /* BTRFS_BLOCK_RSV_H */
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4596,8 +4596,8 @@ int btrfs_block_rsv_use_bytes(struct btr
 	return ret;
 }
 
-static void block_rsv_add_bytes(struct btrfs_block_rsv *block_rsv,
-				u64 num_bytes, int update_size)
+void btrfs_block_rsv_add_bytes(struct btrfs_block_rsv *block_rsv, u64 num_bytes,
+			       bool update_size)
 {
 	spin_lock(&block_rsv->lock);
 	block_rsv->reserved += num_bytes;
@@ -4629,7 +4629,7 @@ int btrfs_cond_migrate_bytes(struct btrf
 		global_rsv->full = 0;
 	spin_unlock(&global_rsv->lock);
 
-	block_rsv_add_bytes(dest, num_bytes, 1);
+	btrfs_block_rsv_add_bytes(dest, num_bytes, 1);
 	return 0;
 }
 
@@ -4711,7 +4711,7 @@ int btrfs_delayed_refs_rsv_refill(struct
 				     num_bytes, flush);
 	if (ret)
 		return ret;
-	block_rsv_add_bytes(block_rsv, num_bytes, 0);
+	btrfs_block_rsv_add_bytes(block_rsv, num_bytes, 0);
 	trace_btrfs_space_reservation(fs_info, "delayed_refs_rsv",
 				      0, num_bytes, 1);
 	return 0;
@@ -4783,7 +4783,7 @@ int btrfs_block_rsv_migrate(struct btrfs
 	if (ret)
 		return ret;
 
-	block_rsv_add_bytes(dst, num_bytes, update_size);
+	btrfs_block_rsv_add_bytes(dst, num_bytes, update_size);
 	return 0;
 }
 
@@ -4836,7 +4836,7 @@ int btrfs_block_rsv_add(struct btrfs_roo
 
 	ret = btrfs_reserve_metadata_bytes(root, block_rsv, num_bytes, flush);
 	if (!ret) {
-		block_rsv_add_bytes(block_rsv, num_bytes, 1);
+		btrfs_block_rsv_add_bytes(block_rsv, num_bytes, 1);
 		return 0;
 	}
 
@@ -4883,7 +4883,7 @@ int btrfs_block_rsv_refill(struct btrfs_
 
 	ret = btrfs_reserve_metadata_bytes(root, block_rsv, num_bytes, flush);
 	if (!ret) {
-		block_rsv_add_bytes(block_rsv, num_bytes, 0);
+		btrfs_block_rsv_add_bytes(block_rsv, num_bytes, 0);
 		return 0;
 	}
 
@@ -5296,7 +5296,7 @@ int btrfs_delalloc_reserve_metadata(stru
 	spin_unlock(&inode->lock);
 
 	/* Now we can safely add our space to our block rsv */
-	block_rsv_add_bytes(block_rsv, meta_reserve, false);
+	btrfs_block_rsv_add_bytes(block_rsv, meta_reserve, false);
 	trace_btrfs_space_reservation(root->fs_info, "delalloc",
 				      btrfs_ino(inode), meta_reserve, 1);
 
@@ -7550,7 +7550,7 @@ try_reserve:
 static void unuse_block_rsv(struct btrfs_fs_info *fs_info,
 			    struct btrfs_block_rsv *block_rsv, u32 blocksize)
 {
-	block_rsv_add_bytes(block_rsv, blocksize, 0);
+	btrfs_block_rsv_add_bytes(block_rsv, blocksize, 0);
 	block_rsv_release_bytes(fs_info, block_rsv, NULL, 0, NULL);
 }