On Thu, Nov 30, 2017 at 12:14:47PM +0000, Colin King wrote:

From: Colin Ian King <redacted>

The function update_share_count is local to the source and does
not need to be in global scope, so make it static.

Cleans up sparse warning:
fs/btrfs/backref.c:219:6: warning: symbol 'update_share_count' was not
declared. Should it be static?

Signed-off-by: Colin Ian King <redacted>

Reviewed-by: David Sterba <dsterba@suse.com>