btrfs: alloc_chunk: improve chunk size variable name

The variable 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.

Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: Hans van Kranenburg <hans.van.kranenburg@mendix.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 405d8977a2b5efcd3582a2af76af5035b847be3c..8c5ae9943d694ceeff3994a44eb169e348c855e0 100644 (file)
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -4632,7 +4632,7 @@ 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;
@@ -4834,9 +4834,9 @@ 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) {
@@ -4847,7 +4847,7 @@ 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;
@@ -4865,7 +4865,7 @@ 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;