btrfs: remove local blocksize variable in reada_find_extent

The name is misleading and the local variable serves no purpose.

Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c
index 5c1e6bbed1322170dddf4542ba7c3c666d0fa2cb..a17e775a4a89fca1e48214c5abb02756dd1c69d6 100644 (file)
--- a/fs/btrfs/reada.c
+++ b/fs/btrfs/reada.c
@@ -320,7 +320,6 @@ static struct reada_extent *reada_find_extent(struct btrfs_fs_info *fs_info,
        struct btrfs_bio *bbio = NULL;
        struct btrfs_device *dev;
        struct btrfs_device *prev_dev;
-       u32 blocksize;
        u64 length;
        int real_stripes;
        int nzones = 0;
@@ -341,7 +340,6 @@ static struct reada_extent *reada_find_extent(struct btrfs_fs_info *fs_info,
        if (!re)
                return NULL;
 
-       blocksize = fs_info->nodesize;
        re->logical = logical;
        re->top = *top;
        INIT_LIST_HEAD(&re->extctl);
@@ -351,10 +349,10 @@ static struct reada_extent *reada_find_extent(struct btrfs_fs_info *fs_info,
        /*
         * map block
         */
-       length = blocksize;
+       length = fs_info->nodesize;
        ret = btrfs_map_block(fs_info, BTRFS_MAP_GET_READ_MIRRORS, logical,
                        &length, &bbio, 0);
-       if (ret || !bbio || length < blocksize)
+       if (ret || !bbio || length < fs_info->nodesize)
                goto error;
 
        if (bbio->num_stripes > BTRFS_MAX_MIRRORS) {