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9ebc6ef188
linux/drivers/md
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Deepa Dinamani 9ebc6ef188 drivers: md: use ktime_get_real_seconds() 
get_seconds() API is not y2038 safe on 32 bit systems and the API
is deprecated. Replace it with calls to ktime_get_real_seconds()
API instead. Change mddev structure types to time64_t accordingly.

32 bit signed timestamps will overflow in the year 2038.

Change the user interface mdu_array_info_s structure timestamps:
ctime and utime values used in ioctls GET_ARRAY_INFO and
SET_ARRAY_INFO to unsigned int. This will extend the field to last
until the year 2106.
The long term plan is to get rid of ctime and utime values in
this structure as this information can be read from the on-disk
meta data directly.

Clamp the tim64_t timestamps to positive values with a max of U32_MAX
when returning from GET_ARRAY_INFO ioctl to accommodate above changes
in the data type of timestamps to unsigned int.

v0.90 on disk meta data uses u32 for maintaining time stamps.
So this will also last until year 2106.
Assumption is that the usage of v0.90 will be deprecated by
year 2106.

Timestamp fields in the on disk meta data for v1.0 version already
use 64 bit data types. Remove the truncation of the bits while
writing to or reading from these from the disk.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: NeilBrown <neilb@suse.com>
2016-01-06 11:39:53 +11:00
..
bcache Merge branch 'for-4.4/io-poll' of git://git.kernel.dk/linux-block 2015-11-10 17:23:49 -08:00
persistent-data dm btree: fix bufio buffer leaks in dm_btree_del() error path 2015-12-10 10:30:18 -05:00
bitmap.c md-cluster: Use a small window for resync 2015-10-12 01:32:05 -05:00
bitmap.h md-cluster: Use a small window for resync 2015-10-12 01:32:05 -05:00
dm-bio-prison.c block: add a bi_error field to struct bio 2015-07-29 08:55:15 -06:00
dm-bio-prison.h dm bio prison: add dm_cell_promote_or_release() 2015-05-29 14:19:06 -04:00
dm-bio-record.h dm: Refactor for new bio cloning/splitting 2013-11-23 22:33:55 -08:00
dm-bufio.c dm: convert ffs to __ffs 2015-10-31 19:06:01 -04:00
dm-bufio.h dm snapshot: use dm-bufio prefetch 2014-01-14 23:23:03 -05:00
dm-builtin.c dm sysfs: fix a module unload race 2014-01-14 23:23:04 -05:00
dm-cache-block-types.h dm cache: revert "remove remainder of distinct discard block size" 2014-11-10 15:25:30 -05:00
dm-cache-metadata.c - Revert a dm-multipath change that caused a regression for unprivledged 2015-11-04 21:19:53 -08:00
dm-cache-metadata.h dm cache: add fail io mode and needs_check flag 2015-06-11 17:13:00 -04:00
dm-cache-policy-cleaner.c - Revert a dm-multipath change that caused a regression for unprivledged 2015-11-04 21:19:53 -08:00
dm-cache-policy-internal.h dm cache: age and write back cache entries even without active IO 2015-06-11 17:13:01 -04:00
dm-cache-policy-mq.c dm: convert ffs to __ffs 2015-10-31 19:06:01 -04:00
dm-cache-policy-smq.c dm: convert ffs to __ffs 2015-10-31 19:06:01 -04:00
dm-cache-policy.c dm cache: add policy name to status output 2014-01-16 13:44:11 -05:00
dm-cache-policy.h dm cache: age and write back cache entries even without active IO 2015-06-11 17:13:01 -04:00
dm-cache-target.c dm: drop NULL test before kmem_cache_destroy() and mempool_destroy() 2015-10-31 19:06:00 -04:00
dm-crypt.c dm crypt: fix a possible hang due to race condition on exit 2015-11-19 13:38:30 -05:00
dm-delay.c dm delay: document that offsets are specified in sectors 2015-10-31 19:06:05 -04:00
dm-era-target.c dm persistent data: eliminate unnecessary return values 2015-10-31 19:06:02 -04:00
dm-exception-store.c - Revert a dm-multipath change that caused a regression for unprivledged 2015-11-04 21:19:53 -08:00
dm-exception-store.h dm snapshot: add new persistent store option to support overflow 2015-10-09 16:57:03 -04:00
dm-flakey.c dm: refactor ioctl handling 2015-10-31 19:05:59 -04:00
dm-io.c dm: drop NULL test before kmem_cache_destroy() and mempool_destroy() 2015-10-31 19:06:00 -04:00
dm-ioctl.c char: make misc_deregister a void function 2015-08-05 10:35:49 -07:00
dm-kcopyd.c mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd 2015-11-06 17:50:42 -08:00
dm-linear.c dm linear: remove redundant target name from error messages 2015-10-31 19:06:03 -04:00
dm-log-userspace-base.c dm: drop NULL test before kmem_cache_destroy() and mempool_destroy() 2015-10-31 19:06:00 -04:00
dm-log-userspace-transfer.c dm log userspace transfer: match wait_for_completion_timeout return type 2015-04-15 12:10:20 -04:00
dm-log-userspace-transfer.h
dm-log-writes.c dm: refactor ioctl handling 2015-10-31 19:05:59 -04:00
dm-log.c
dm-mpath.c dm mpath: fix infinite recursion in ioctl when no paths and !queue_if_no_path 2015-11-17 14:19:00 -05:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c
dm-raid1.c Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm 2015-09-02 16:35:26 -07:00
dm-raid.c dm raid: fix round up of default region size 2015-10-02 12:02:31 -04:00
dm-region-hash.c dm: convert ffs to __ffs 2015-10-31 19:06:01 -04:00
dm-round-robin.c
dm-service-time.c
dm-snap-persistent.c - Revert a dm-multipath change that caused a regression for unprivledged 2015-11-04 21:19:53 -08:00
dm-snap-transient.c dm snapshot: add new persistent store option to support overflow 2015-10-09 16:57:03 -04:00
dm-snap.c dm snapshot: add new persistent store option to support overflow 2015-10-09 16:57:03 -04:00
dm-stats.c dm stats: report precise_timestamps and histogram in @stats_list output 2015-08-18 17:20:03 -04:00
dm-stats.h dm stats: support precise timestamps 2015-06-17 12:40:40 -04:00
dm-stripe.c Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm 2015-09-02 16:35:26 -07:00
dm-switch.c dm switch: simplify conditional in alloc_region_table() 2015-10-31 19:06:06 -04:00
dm-sysfs.c dm: add 'use_blk_mq' module param and expose in per-device ro sysfs attr 2015-04-15 12:10:17 -04:00
dm-table.c block: Inline blk_integrity in struct gendisk 2015-10-21 14:42:42 -06:00
dm-target.c dm: allocate requests in target when stacking on blk-mq devices 2015-02-09 13:06:47 -05:00
dm-thin-metadata.c dm thin metadata: fix bug when taking a metadata snapshot 2015-12-09 13:18:12 -05:00
dm-thin-metadata.h dm thin metadata: add dm_thin_remove_range() 2015-06-11 17:13:04 -04:00
dm-thin.c dm thin: fix regression in advertised discard limits 2015-11-23 14:54:46 -05:00
dm-uevent.c
dm-uevent.h
dm-verity.c dm: refactor ioctl handling 2015-10-31 19:05:59 -04:00
dm-zero.c block: add a bi_error field to struct bio 2015-07-29 08:55:15 -06:00
dm.c dm: do not reuse dm_blk_ioctl block_device input as local variable 2015-11-17 14:18:49 -05:00
dm.h block: kill merge_bvec_fn() completely 2015-08-13 12:31:57 -06:00
faulty.c block: add a bi_error field to struct bio 2015-07-29 08:55:15 -06:00
Kconfig raid5-cache: add crc32c Kconfig dependency 2015-11-09 09:09:52 +11:00
linear.c block: kill merge_bvec_fn() completely 2015-08-13 12:31:57 -06:00
linear.h
Makefile raid5: add basic stripe log 2015-10-24 17:16:19 +11:00
md-cluster.c md-cluster: update comments for MD_CLUSTER_SEND_LOCKED_ALREADY 2016-01-06 11:39:21 +11:00
md-cluster.h md-cluster: append some actions when change bitmap from clustered to none 2016-01-06 11:38:57 +11:00
md.c drivers: md: use ktime_get_real_seconds() 2016-01-06 11:39:53 +11:00
md.h drivers: md: use ktime_get_real_seconds() 2016-01-06 11:39:53 +11:00
multipath.c md: suspend i/o during runtime blk_integrity_unregister 2015-10-21 14:43:38 -06:00
multipath.h
raid0.c md/raid0: apply base queue limits *before* disk_stack_limits 2015-10-02 17:23:44 +10:00
raid0.h block: kill merge_bvec_fn() completely 2015-08-13 12:31:57 -06:00
raid1.c md updates for 4.4. 2015-11-04 21:12:47 -08:00
raid1.h md-cluster: Use a small window for resync 2015-10-12 01:32:05 -05:00
raid5-cache.c raid5-cache: free meta_page earlier 2016-01-06 11:39:43 +11:00
raid5.c md/raid5: remove redundant check in stripe_add_to_batch_list() 2016-01-06 11:38:22 +11:00
raid5.h raid5-cache: IO error handling 2015-11-01 13:48:29 +11:00
raid10.c md/raid10: fix data corruption and crash during resync 2015-12-18 15:19:16 +11:00
raid10.h md/raid10: ensure device failure recorded before write request returns. 2015-08-31 19:43:45 +02:00