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Commits on Jun 3, 2014

• dm era: check for a non-NULL metadata object before closing it

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• dm thin: cleanup noflush_work to use a proper completion

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Commits on May 14, 2014

• dm thin: add timeout to stop out-of-data-space mode holding IO forever

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• dm thin: allow metadata commit if pool is in PM_OUT_OF_DATA_SPACE mode

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Commits on Apr 8, 2014

• dm thin: fix rcu_read_lock being held in code that can sleep

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• dm thin: irqsave must always be used with the pool->lock spinlock

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Commits on Apr 4, 2014

• dm cache: fix a lock-inversion

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Commits on Mar 27, 2014

• dm: take care to copy the space map roots before locking the superblock

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• dm transaction manager: fix corruption due to non-atomic transaction commit

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• dm bitset: only flush the current word if it has been dirtied

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• dm: add era target

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Commits on Mar 7, 2014

• dm space map metadata: fix refcount decrement below 0 which caused corruption

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Commits on Mar 5, 2014

• dm thin: fix noflush suspend IO queueing

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• dm thin: fix deadlock in __requeue_bio_list

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• dm thin: fix out of data space handling

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Commits on Jan 21, 2014

• dm space map metadata: fix bug in resizing of thin metadata

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Commits on Jan 9, 2014

• dm btree: add dm_btree_find_lowest_key

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Commits on Jan 8, 2014

• dm space map metadata: fix extending the space map

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• dm space map common: make sure new space is used during extend

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Commits on Jan 7, 2014

• dm cache policy mq: introduce three promotion threshold tunables

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• dm thin: handle metadata failures more consistently

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• dm thin: factor out check_low_water_mark and use bools

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• dm thin: return error from alloc_data_block if pool is not in write mode

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• dm thin: fix discard support to a previously shared block

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Commits on Dec 13, 2013

• dm array: fix a reference counting bug in shadow_ablock

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• dm space map: disallow decrementing a reference count below zero

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Commits on Dec 10, 2013

• dm cache policy mq: fix promotions to occur as expected

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• dm thin: allow pool in read-only mode to transition to read-write mode

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• dm thin: re-establish read-only state when switching to fail mode

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• dm thin: always fallback the pool mode if commit fails

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• dm thin: switch to read only mode if a mapping insert fails

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Commits on Nov 11, 2013

• dm cache: add cache block invalidation support

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• dm cache: add remove_cblock method to policy interface

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• dm cache policy mq: reduce memory requirements

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• dm cache metadata: check the metadata version when reading the superblock

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