Markus, This should fix your problem! sage --- Subject: [PATCH] Btrfs: fix arithmetic error in clone ioctl Fix an arithmetic error that was breaking extents cloned via the clone ioctl starting in the second half of a file. Signed-off-by: Sage Weil <sage@xxxxxxxxxxxx> --- fs/btrfs/ioctl.c | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index e8e4ebe..63ca12a 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -1072,8 +1072,7 @@ static long btrfs_ioctl_clone(struct file *file, unsigned long srcfd, datao += off - key.offset; datal -= off - key.offset; } - if (key.offset + datao + datal + key.offset > - off + len) + if (key.offset + datao + datal > off + len) datal = off + len - key.offset - datao; /* disko == 0 means it's a hole */ if (!disko) -- 1.5.6.5 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
