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Aneesh Kumar K.V 3e79f082eb libnvdimm/nvdimm/flush: Allow architecture to override the flush barrier 
Architectures like ppc64 provide persistent memory specific barriers
that will ensure that all stores for which the modifications are
written to persistent storage by preceding dcbfps and dcbstps
instructions have updated persistent storage before any data
access or data transfer caused by subsequent instructions is initiated.
This is in addition to the ordering done by wmb()

Update nvdimm core such that architecture can use barriers other than
wmb to ensure all previous writes are architecturally visible for
the platform buffer flush.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200701072235.223558-5-aneesh.kumar@linux.ibm.com
 		2020-07-16 13:00:22 +10:00
..
bcache bcache: pr_info() format clean up in bcache_device_init() 2020-06-14 16:47:56 -06:00
persistent-data treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Makefile dm mpath: add Historical Service Time Path Selector 2020-05-15 10:29:36 -04:00
dm-bio-prison-v1.c dm bio prison: replace spin_lock_irqsave with spin_lock_irq 2019-11-05 14:53:03 -05:00
dm-bio-prison-v1.h
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dm-bio-prison-v2.c dm bio prison v2: use true/false for bool variable 2020-01-07 12:07:08 -05:00
dm-bio-prison-v2.h
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dm-bio-record.h dm bio record: save/restore bi_end_io and bi_integrity 2020-03-03 10:02:46 -05:00
dm-bufio.c - Largest change for this cycle is the DM zoned target's metadata 2020-06-05 15:45:03 -07:00
dm-builtin.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dm-cache-background-tracker.c dm cache background tracker: fix sparse warning 2018-04-30 15:40:40 -04:00
dm-cache-background-tracker.h
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dm-cache-block-types.h
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dm-cache-metadata.c dm cache metadata: Fix loading discard bitset 2019-04-18 16:18:25 -04:00
dm-cache-metadata.h
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dm-cache-policy-internal.h
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dm-cache-policy-smq.c dm: remove unnecessary unlikely() around WARN_ON_ONCE() 2018-10-16 14:34:59 -04:00
dm-cache-policy.c
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dm-cache-policy.h
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dm-cache-target.c dm: bump version of core and various targets 2020-03-03 11:10:21 -05:00
dm-clone-metadata.c dm clone metadata: Fix return type of dm_clone_nr_of_hydrated_regions() 2020-03-27 14:42:51 -04:00
dm-clone-metadata.h dm clone metadata: Fix return type of dm_clone_nr_of_hydrated_regions() 2020-03-27 14:42:51 -04:00
dm-clone-target.c dm clone metadata: Fix return type of dm_clone_nr_of_hydrated_regions() 2020-03-27 14:42:51 -04:00
dm-core.h dm: disable DISCARD if the underlying storage no longer supports it 2019-04-04 15:33:59 -04:00
dm-crypt.c dm crypt: avoid truncating the logical block size 2020-06-05 14:59:59 -04:00
dm-delay.c dm delay: fix a crash when invalid device is specified 2019-04-26 11:29:32 -04:00
dm-dust.c dm dust: change ret to r in dust_map_write 2020-01-07 11:43:36 -05:00
dm-ebs-target.c dm ebs: use dm_bufio_forget_buffers 2020-06-05 14:59:42 -04:00
dm-era-target.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
dm-exception-store.c
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dm-exception-store.h - Improve DM snapshot target's scalability by using finer grained 2019-05-16 15:55:48 -07:00
dm-flakey.c block: rework zone reporting 2019-11-12 19:12:07 -07:00
dm-historical-service-time.c dm mpath: add Historical Service Time Path Selector 2020-05-15 10:29:36 -04:00
dm-init.c docs: device-mapper: move it to the admin-guide 2019-07-15 11:03:01 -03:00
dm-integrity.c - Largest change for this cycle is the DM zoned target's metadata 2020-06-05 15:45:03 -07:00
dm-io.c dm: Use kzalloc for all structs with embedded biosets/mempools 2018-06-05 08:47:43 -06:00
dm-ioctl.c dm: introduce DM_GET_TARGET_VERSION 2019-09-16 10:18:01 -04:00
dm-kcopyd.c dm kcopyd: always complete failed jobs 2019-08-15 15:57:39 -04:00
dm-linear.c dm,dax: Add dax zero_page_range operation 2020-04-02 19:15:03 -07:00
dm-log-userspace-base.c dm: convert to bioset_init()/mempool_init() 2018-05-30 15:33:32 -06:00
dm-log-userspace-transfer.c
…
dm-log-userspace-transfer.h
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dm-log-writes.c dm: replace zero-length array with flexible-array 2020-05-20 17:09:44 -04:00
dm-log.c
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dm-mpath.c dm mpath: add DM device name to Failing/Reinstating path log messages 2020-06-05 14:59:58 -04:00
dm-mpath.h
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dm-path-selector.c
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dm-path-selector.h dm mpath: pass IO start time to path selector 2020-05-15 10:29:36 -04:00
dm-queue-length.c dm mpath: pass IO start time to path selector 2020-05-15 10:29:36 -04:00
dm-raid.c dm: replace zero-length array with flexible-array 2020-05-20 17:09:44 -04:00
dm-raid1.c dm: replace zero-length array with flexible-array 2020-05-20 17:09:44 -04:00
dm-region-hash.c - Error path bug fix for overflow tests (Dan) 2018-06-12 18:28:00 -07:00
dm-round-robin.c
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dm-rq.c blk-mq: drain I/O when all CPUs in a hctx are offline 2020-05-29 10:23:25 -06:00
dm-rq.h dm: remove unused _rq_tio_cache and _rq_cache 2019-03-05 14:48:50 -05:00
dm-service-time.c dm mpath: pass IO start time to path selector 2020-05-15 10:29:36 -04:00
dm-snap-persistent.c block: fix an integer overflow in logical block size 2020-01-15 21:43:09 -07:00
dm-snap-transient.c
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dm-snap.c dm snapshot: use true/false for bool variable 2020-01-07 12:07:17 -05:00
dm-stats.c dm: replace zero-length array with flexible-array 2020-05-20 17:09:44 -04:00
dm-stats.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dm-stripe.c dm: replace zero-length array with flexible-array 2020-05-20 17:09:44 -04:00
dm-switch.c dm: replace zero-length array with flexible-array 2020-05-20 17:09:44 -04:00
dm-sysfs.c dm: remove legacy request-based IO path 2018-10-11 11:36:09 -04:00
dm-table.c dm: remove the make_request_fn check in device_area_is_invalid 2020-04-25 09:45:43 -06:00
dm-target.c dm mpath: fix missing call of path selector type->end_io 2019-04-25 15:38:52 -04:00
dm-thin-metadata.c dm thin metadata: fix lockdep complaint 2020-02-27 12:00:53 -05:00
dm-thin-metadata.h dm thin metadata: Add support for a pre-commit callback 2019-12-05 17:05:24 -05:00
dm-thin.c dm thin: change data device's flush_bio to be member of struct pool 2020-01-14 20:23:13 -05:00
dm-uevent.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
dm-uevent.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
dm-unstripe.c dm: Check for device sector overflow if CONFIG_LBDAF is not set 2018-12-18 09:02:26 -05:00
dm-verity-fec.c dm verity fec: fix hash block number in verity_fec_decode 2020-04-16 16:16:38 -04:00
dm-verity-fec.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
dm-verity-target.c dm: bump version of core and various targets 2020-03-03 11:10:21 -05:00
dm-verity-verify-sig.c dm verity: add root hash pkcs#7 signature verification 2019-08-23 10:13:14 -04:00
dm-verity-verify-sig.h dm verity: add root hash pkcs#7 signature verification 2019-08-23 10:13:14 -04:00
dm-verity.h dm verity: add root hash pkcs#7 signature verification 2019-08-23 10:13:14 -04:00
dm-writecache.c libnvdimm/nvdimm/flush: Allow architecture to override the flush barrier 2020-07-16 13:00:22 +10:00
dm-zero.c
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dm-zoned-metadata.c - Largest change for this cycle is the DM zoned target's metadata 2020-06-05 15:45:03 -07:00
dm-zoned-reclaim.c dm zoned: select reclaim zone based on device index 2020-06-05 14:59:53 -04:00
dm-zoned-target.c dm zoned: select reclaim zone based on device index 2020-06-05 14:59:53 -04:00
dm-zoned.h dm zoned: select reclaim zone based on device index 2020-06-05 14:59:53 -04:00
dm.c - Largest change for this cycle is the DM zoned target's metadata 2020-06-05 15:45:03 -07:00
dm.h dm: make dm_table_find_target return NULL 2019-08-23 10:13:12 -04:00
md-bitmap.c md: remove __clear_page_buffers and use attach/detach_page_private 2020-06-02 10:59:07 -07:00
md-bitmap.h md: Avoid namespace collision with bitmap API 2018-08-01 15:49:39 -07:00
md-cluster.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 45 2019-05-24 17:27:12 +02:00
md-cluster.h md-cluster: introduce resync_info_get interface for sanity check 2018-10-18 09:36:35 -07:00
md-faulty.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 47 2019-05-24 17:27:13 +02:00
md-linear.c md: improve handling of bio with REQ_PREFLUSH in md_flush_request() 2019-10-24 15:22:40 -07:00
md-linear.h md/raid1: Replace zero-length array with flexible-array 2020-05-13 12:02:23 -07:00
md-multipath.c md: improve handling of bio with REQ_PREFLUSH in md_flush_request() 2019-10-24 15:22:40 -07:00
md-multipath.h md: convert to bioset_init()/mempool_init() 2018-05-30 15:33:32 -06:00
md.c md: add a newline when printing parameter 'start_ro' by sysfs 2020-05-13 11:49:19 -07:00
md.h md: use memalloc scope APIs in mddev_suspend()/mddev_resume() 2020-05-13 11:22:31 -07:00
raid0.c block: fix an integer overflow in logical block size 2020-01-15 21:43:09 -07:00
raid0.h md/raid0: avoid RAID0 data corruption due to layout confusion. 2019-09-13 13:10:05 -07:00
raid1-10.c md: raid1-10: Unify r{1,10}bio_pool_free 2019-06-15 01:37:35 -06:00
raid1.c md/raid1: release pending accounting for an I/O only after write-behind is also finished 2020-05-13 11:22:31 -07:00
raid1.h md/raid1: Replace zero-length array with flexible-array 2020-05-13 12:02:23 -07:00
raid5-cache.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
raid5-log.h raid5: set write hint for PPL 2019-03-12 10:15:18 -07:00
raid5-ppl.c block: remove the error_sector argument to blkdev_issue_flush 2020-05-22 08:45:46 -06:00
raid5.c raid5: update code comment of scribble_alloc() 2020-05-13 11:22:31 -07:00
raid5.h raid5: use bio_end_sector in r5_next_bio 2019-09-13 13:14:43 -07:00
raid10.c md/raid10: prevent access of uninitialized resync_pages offset 2019-11-11 16:47:39 -08:00
raid10.h md/raid1: Replace zero-length array with flexible-array 2020-05-13 12:02:23 -07:00