- Two DM btree bufio buffer leak fixes that resolve reported BUG_ONs
during DM thinp metadata close's dm_bufio_client_destroy().
- A DM thinp range discard fix to handle discarding a partially mapped
range.
- A DM thinp metadata snapshot fix to make sure the btree roots saved in
the metadata snapshot are the most current.
- A DM space map metadata refcounting fix that improves both DM thinp
and DM cache metadata.
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Merge tag 'dm-4.4-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
"Five stable fixes:
- Two DM btree bufio buffer leak fixes that resolve reported BUG_ONs
during DM thinp metadata close's dm_bufio_client_destroy().
- A DM thinp range discard fix to handle discarding a partially
mapped range.
- A DM thinp metadata snapshot fix to make sure the btree roots saved
in the metadata snapshot are the most current.
- A DM space map metadata refcounting fix that improves both DM thinp
and DM cache metadata"
* tag 'dm-4.4-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm btree: fix bufio buffer leaks in dm_btree_del() error path
dm space map metadata: fix ref counting bug when bootstrapping a new space map
dm thin metadata: fix bug when taking a metadata snapshot
dm thin metadata: fix bug in dm_thin_remove_range()
dm btree: fix leak of bufio-backed block in btree_split_sibling error path
b9d85451dd