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A few fixes for problems discovered during the 3.6 cycle.
Of particular note, are fixes to the thin target's discard support,
which I hope is finally working correctly; and fixes for multipath
ioctls and device limits when there are no paths.
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Mike Snitzer (6):
dm thin: do not set discard_zeroes_data
dm mpath: only retry ioctl when no paths if queue_if_no_path set
dm: handle requests beyond end of device instead of using BUG_ON
dm: retain table limits when swapping to new table with no devices
dm thin: tidy discard support
dm thin: fix discard support for data devices