kernel-hacking-2024-linux-s.../drivers/md
Linus Torvalds 4477b39c32 minmax: add a few more MIN_T/MAX_T users
Commit 3a7e02c040 ("minmax: avoid overly complicated constant
expressions in VM code") added the simpler MIN_T/MAX_T macros in order
to avoid some excessive expansion from the rather complicated regular
min/max macros.

The complexity of those macros stems from two issues:

 (a) trying to use them in situations that require a C constant
     expression (in static initializers and for array sizes)

 (b) the type sanity checking

and MIN_T/MAX_T avoids both of these issues.

Now, in the whole (long) discussion about all this, it was pointed out
that the whole type sanity checking is entirely unnecessary for
min_t/max_t which get a fixed type that the comparison is done in.

But that still leaves min_t/max_t unnecessarily complicated due to
worries about the C constant expression case.

However, it turns out that there really aren't very many cases that use
min_t/max_t for this, and we can just force-convert those.

This does exactly that.

Which in turn will then allow for much simpler implementations of
min_t()/max_t().  All the usual "macros in all upper case will evaluate
the arguments multiple times" rules apply.

We should do all the same things for the regular min/max() vs MIN/MAX()
cases, but that has the added complexity of various drivers defining
their own local versions of MIN/MAX, so that needs another level of
fixes first.

Link: https://lore.kernel.org/all/b47fad1d0cf8449886ad148f8c013dae@AcuMS.aculab.com/
Cc: David Laight <David.Laight@aculab.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-07-28 13:41:14 -07:00
..
bcache - In the series "treewide: Refactor heap related implementation", 2024-07-21 17:56:22 -07:00
dm-vdo - In the series "treewide: Refactor heap related implementation", 2024-07-21 17:56:22 -07:00
persistent-data dm: Constify struct dm_block_validator 2024-07-19 12:08:15 +02:00
dm-audit.c
dm-audit.h
dm-bio-prison-v1.c dm: update relevant MODULE_AUTHOR entries to latest dm-devel mailing list 2024-02-20 14:22:55 -05:00
dm-bio-prison-v1.h
dm-bio-prison-v2.c dm: use bio_list_merge_init 2024-04-01 11:53:37 -06:00
dm-bio-prison-v2.h
dm-bio-record.h
dm-bufio.c dm: update relevant MODULE_AUTHOR entries to latest dm-devel mailing list 2024-02-20 14:22:55 -05:00
dm-builtin.c
dm-cache-background-tracker.c
dm-cache-background-tracker.h
dm-cache-block-types.h
dm-cache-metadata.c dm: Constify struct dm_block_validator 2024-07-19 12:08:15 +02:00
dm-cache-metadata.h
dm-cache-policy-internal.h
dm-cache-policy-smq.c dm: update relevant MODULE_AUTHOR entries to latest dm-devel mailing list 2024-02-20 14:22:55 -05:00
dm-cache-policy.c
dm-cache-policy.h
dm-cache-target.c dm: stop using blk_limits_io_{min,opt} 2024-07-10 13:10:06 +02:00
dm-clone-metadata.c dm: Constify struct dm_block_validator 2024-07-19 12:08:15 +02:00
dm-clone-metadata.h
dm-clone-target.c dm: stop using blk_limits_io_{min,opt} 2024-07-10 13:10:06 +02:00
dm-core.h dm: optimize flushes 2024-06-26 11:32:39 -04:00
dm-crypt.c dm-crypt: support for per-sector NVMe metadata 2024-07-10 13:10:06 +02:00
dm-delay.c dm-delay: remove timer_lock 2024-05-09 09:10:58 -04:00
dm-dust.c dm: update relevant MODULE_AUTHOR entries to latest dm-devel mailing list 2024-02-20 14:22:55 -05:00
dm-ebs-target.c dm: stop using blk_limits_io_{min,opt} 2024-07-10 13:10:06 +02:00
dm-era-target.c dm: Constify struct dm_block_validator 2024-07-19 12:08:15 +02:00
dm-exception-store.c
dm-exception-store.h
dm-flakey.c dm: update relevant MODULE_AUTHOR entries to latest dm-devel mailing list 2024-02-20 14:22:55 -05:00
dm-ima.c
dm-ima.h
dm-init.c dm init: Handle minors larger than 255 2024-07-02 20:53:41 +02:00
dm-integrity.c minmax: add a few more MIN_T/MAX_T users 2024-07-28 13:41:14 -07:00
dm-io-rewind.c
dm-io-tracker.h
dm-io.c dm io: remove code duplication between sync_io and aysnc_io 2024-07-02 12:00:43 +02:00
dm-ioctl.c dm ioctl: update DM_DRIVER_EMAIL to new dm-devel mailing list 2024-02-20 14:22:55 -05:00
dm-kcopyd.c dm io: Support IO priority 2024-02-20 14:22:51 -05:00
dm-linear.c dm: optimize flushes 2024-06-26 11:32:39 -04:00
dm-log-userspace-base.c dm: update relevant MODULE_AUTHOR entries to latest dm-devel mailing list 2024-02-20 14:22:55 -05:00
dm-log-userspace-transfer.c
dm-log-userspace-transfer.h
dm-log-writes.c dm: always manage discard support in terms of max_hw_discard_sectors 2024-05-20 15:51:19 -04:00
dm-log.c dm: update relevant MODULE_AUTHOR entries to latest dm-devel mailing list 2024-02-20 14:22:55 -05:00
dm-mpath.c dm mpath: don't call dm_get_device in multipath_message 2024-07-10 13:10:06 +02:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-ps-historical-service-time.c
dm-ps-io-affinity.c
dm-ps-queue-length.c
dm-ps-round-robin.c dm: update relevant MODULE_AUTHOR entries to latest dm-devel mailing list 2024-02-20 14:22:55 -05:00
dm-ps-service-time.c
dm-raid.c dm raid: fix stripes adding reshape size issues 2024-07-10 13:10:06 +02:00
dm-raid1.c dm io: Support IO priority 2024-02-20 14:22:51 -05:00
dm-region-hash.c dm: update relevant MODULE_AUTHOR entries to latest dm-devel mailing list 2024-02-20 14:22:55 -05:00
dm-rq.c
dm-rq.h
dm-snap-persistent.c dm io: Support IO priority 2024-02-20 14:22:51 -05:00
dm-snap-transient.c
dm-snap.c dm: always manage discard support in terms of max_hw_discard_sectors 2024-05-20 15:51:19 -04:00
dm-stats.c dm stats: limit the number of entries 2024-01-30 14:06:44 -05:00
dm-stats.h
dm-stripe.c dm: stop using blk_limits_io_{min,opt} 2024-07-10 13:10:06 +02:00
dm-switch.c
dm-sysfs.c
dm-table.c dm: introduce the target flag mempool_needs_integrity 2024-07-12 12:39:06 -04:00
dm-target.c dm: always manage discard support in terms of max_hw_discard_sectors 2024-05-20 15:51:19 -04:00
dm-thin-metadata.c dm: Constify struct dm_block_validator 2024-07-19 12:08:15 +02:00
dm-thin-metadata.h
dm-thin.c dm: stop using blk_limits_io_{min,opt} 2024-07-10 13:10:06 +02:00
dm-uevent.c
dm-uevent.h
dm-unstripe.c
dm-verity-fec.c dm-verity: make verity_hash() take dm_verity_io instead of ahash_request 2024-07-03 21:41:11 +02:00
dm-verity-fec.h dm-verity: always "map" the data blocks 2024-07-03 21:41:11 +02:00
dm-verity-loadpin.c
dm-verity-target.c dm-verity: fix dm_is_verity_target() when dm-verity is builtin 2024-07-10 13:10:06 +02:00
dm-verity-verify-sig.c dm verity: add support for signature verification with platform keyring 2024-07-03 21:41:11 +02:00
dm-verity-verify-sig.h
dm-verity.h dm-verity: hash blocks with shash import+finup when possible 2024-07-03 21:41:11 +02:00
dm-writecache.c dm: update relevant MODULE_AUTHOR entries to latest dm-devel mailing list 2024-02-20 14:22:55 -05:00
dm-zero.c dm: always manage discard support in terms of max_hw_discard_sectors 2024-05-20 15:51:19 -04:00
dm-zone.c dm: handle REQ_OP_ZONE_RESET_ALL 2024-07-05 00:42:04 -06:00
dm-zoned-metadata.c block: remove gfp_flags from blkdev_zone_mgmt 2024-02-12 08:41:16 -07:00
dm-zoned-reclaim.c
dm-zoned-target.c dm: stop using blk_limits_io_{min,opt} 2024-07-10 13:10:06 +02:00
dm-zoned.h
dm.c for-6.11/block-post-20240722 2024-07-22 11:04:09 -07:00
dm.h dm: handle REQ_OP_ZONE_RESET_ALL 2024-07-05 00:42:04 -06:00
Kconfig dm verity: add support for signature verification with platform keyring 2024-07-03 21:41:11 +02:00
Makefile dm vdo: use a proper Makefile for dm-vdo 2024-02-20 13:43:17 -05:00
md-autodetect.c md: Remove deprecated CONFIG_MD_LINEAR 2023-12-19 10:16:51 -08:00
md-bitmap.c md/md-bitmap: fix writing non bitmap pages 2024-06-11 21:22:21 +00:00
md-bitmap.h
md-cluster.c for-6.11/block-20240722 2024-07-22 11:32:05 -07:00
md-cluster.h md-cluster: fix no recovery job when adding/re-adding a disk 2024-07-12 01:30:18 +00:00
md.c md-cluster: fix no recovery job when adding/re-adding a disk 2024-07-12 01:30:18 +00:00
md.h md-cluster: Constify struct md_cluster_operations 2024-07-04 06:20:27 +00:00
raid0.c md: set md-specific flags for all queue limits 2024-06-26 09:37:35 -06:00
raid0.h
raid1-10.c md/raid1-10: factor out a new helper raid1_should_read_first() 2024-02-29 22:49:46 -08:00
raid1.c md/raid1: set max_sectors during early return from choose_slow_rdev() 2024-07-12 01:30:38 +00:00
raid1.h md/raid1: record nonrot rdevs while adding/removing rdevs to conf 2024-02-29 22:49:45 -08:00
raid5-cache.c md/raid5: remove rcu protection to access rdev from conf 2023-11-27 15:49:05 -08:00
raid5-log.h
raid5-ppl.c md: remove mddev->queue 2024-03-06 08:59:53 -08:00
raid5.c md/raid5: recheck if reshape has finished with device_lock held 2024-07-04 06:35:19 +00:00
raid5.h md/raid5: remove rcu protection to access rdev from conf 2023-11-27 15:49:05 -08:00
raid10.c md: set md-specific flags for all queue limits 2024-06-26 09:37:35 -06:00
raid10.h