[PATCH 2/6] btrfs: alloc_chunk: improve chunk size variable name

[Hans van Kranenburg <hans.van.kranenburg@mendix.com>]

num_bytes is really a way too generic name for a variable in this
function. There are a dozen other variables that hold a number of bytes
as value.

Give it a name that actually describes what it does, which is holding
the size of the chunk that we're allocating.

Signed-off-by: Hans van Kranenburg <hans.van.kranenburg@mendix.com>
---
 fs/btrfs/volumes.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 9c9bb127eeee..40fa85e68b1f 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -123,6 +123,8 @@ const char *get_raid_name(enum btrfs_raid_types type)
 	return btrfs_raid_array[type].raid_name;
 }
 
+
+
 static int init_first_rw_device(struct btrfs_trans_handle *trans,
 				struct btrfs_fs_info *fs_info);
 static int btrfs_relocate_sys_chunks(struct btrfs_fs_info *fs_info);
@@ -4599,7 +4601,7 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
 	u64 max_stripe_size;
 	u64 max_chunk_size;
 	u64 stripe_size;
-	u64 num_bytes;
+	u64 chunk_size;
 	int ndevs;
 	int i;
 	int j;
@@ -4801,9 +4803,9 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
 	map->type = type;
 	map->sub_stripes = sub_stripes;
 
-	num_bytes = stripe_size * data_stripes;
+	chunk_size = stripe_size * data_stripes;
 
-	trace_btrfs_chunk_alloc(info, map, start, num_bytes);
+	trace_btrfs_chunk_alloc(info, map, start, chunk_size);
 
 	em = alloc_extent_map();
 	if (!em) {
@@ -4814,7 +4816,7 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
 	set_bit(EXTENT_FLAG_FS_MAPPING, &em->flags);
 	em->map_lookup = map;
 	em->start = start;
-	em->len = num_bytes;
+	em->len = chunk_size;
 	em->block_start = 0;
 	em->block_len = em->len;
 	em->orig_block_len = stripe_size;
@@ -4832,7 +4834,7 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
 	refcount_inc(&em->refs);
 	write_unlock(&em_tree->lock);
 
-	ret = btrfs_make_block_group(trans, 0, type, start, num_bytes);
+	ret = btrfs_make_block_group(trans, 0, type, start, chunk_size);
 	if (ret)
 		goto error_del_extent;
 
-- 
2.19.0.329.g76f2f5c1e3