From f74b86d85533a98ef7f573487af38f9dd514becb Mon Sep 17 00:00:00 2001
From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Tue, 21 Jan 2014 23:36:38 +0000
Subject: [PATCH] Btrfs: fix snprintf usage by send's gen_unique_name

The buffer size argument passed to snprintf must account for the
trailing null byte added by snprintf, and it returns a value >= then
sizeof(buffer) when the string can't fit in the buffer.

Since our buffer has a size of 64 characters, and the maximum orphan
name we can generate is 63 characters wide, we must pass 64 as the
buffer size to snprintf, and not 63.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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Reading git-format-patch failed