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Christoph Hellwig 4632f6a755 block: ensure discard_granularity is zero when discard is not supported 
[ Upstream commit fad6551fcf ]

Documentation/ABI/stable/sysfs-block states:

  What: /sys/block/<disk>/queue/discard_granularity
  [...]
  A discard_granularity of 0 means that the device does not support
  discard functionality.

but this got broken when sorting out the block limits updates.  Fix this
by setting the discard_granularity limit to zero when the combined
max_discard_sectors is zero.

Fixes: 3c407dc723 ("block: default the discard granularity to sector size")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20250731152228.873923-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-08-15 16:39:24 +02:00
..
partitions for-6.15/block-20250322 2025-03-26 18:08:55 -07:00
badblocks.c badblocks: Fix a nonsense WARN_ON() which checks whether a u64 variable < 0 2025-03-10 07:41:58 -06:00
bdev.c xfs: New code for 6.16 2025-05-26 12:56:01 -07:00
bfq-cgroup.c Revert "block, bfq: merge bfq_release_process_ref() into bfq_put_cooperator()" 2024-11-19 19:05:32 -07:00
bfq-iosched.c block: move wbt_enable_default() out of queue freezing from sched ->exit() 2025-05-06 07:43:43 -06:00
bfq-iosched.h block, bfq: remove bfq_log_bfqg() 2024-09-10 16:32:09 -06:00
bfq-wf2q.c
bio-integrity-auto.c block: always allocate integrity buffer when required 2025-05-12 07:14:03 -06:00
bio-integrity.c block: drop direction param from bio_integrity_copy_user() 2025-06-03 12:45:45 -06:00
bio.c for-6.16/block-20250523 2025-05-26 11:39:36 -07:00
blk-cgroup-fc-appid.c
blk-cgroup-rwstat.c blk-cgroup: use group allocation/free of per-cpu counters API 2024-04-03 09:10:17 -06:00
blk-cgroup-rwstat.h blk-cgroup: rwstat: fix kernel-doc warnings in header file 2025-01-13 07:47:09 -07:00
blk-cgroup.c cgroup: Changes for v6.16 2025-05-27 20:59:53 -07:00
blk-cgroup.h block: correct locking order for protecting blk-wbt parameters 2025-03-19 11:35:45 -06:00
blk-core.c treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
blk-crypto-fallback.c block: add a bi_write_stream field 2025-05-06 07:46:43 -06:00
blk-crypto-internal.h blk-crypto: add ioctls to create and prepare hardware-wrapped keys 2025-02-10 09:54:19 -07:00
blk-crypto-profile.c blk-crypto: export wrapped key functions 2025-05-06 19:08:08 +02:00
blk-crypto-sysfs.c blk-crypto: show supported key types in sysfs 2025-02-10 09:54:19 -07:00
blk-crypto.c blk-crypto: add ioctls to create and prepare hardware-wrapped keys 2025-02-10 09:54:19 -07:00
blk-flush.c block: remove unused parameter 2025-03-12 08:25:28 -06:00
blk-ia-ranges.c block: get rid of request queue ->sysfs_dir_lock 2025-01-29 07:16:47 -07:00
blk-integrity.c block: flip iter directions in blk_rq_integrity_map_user() 2025-06-03 17:24:59 -06:00
blk-ioc.c block: replace call_rcu by kfree_rcu for simple kmem_cache_free callback 2024-10-22 08:16:40 -06:00
blk-iocost.c for-6.15/block-20250322 2025-03-26 18:08:55 -07:00
blk-iolatency.c treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
blk-ioprio.c blk-cgroup: Simplify policy files registration 2025-03-11 09:22:55 -10:00
blk-ioprio.h blk-ioprio: remove per-disk structure 2024-07-28 16:47:51 -06:00
blk-lib.c block: fix detection of unsupported WRITE SAME in blkdev_issue_write_zeroes 2024-08-28 08:49:25 -06:00
blk-map.c block: simplify bio_map_kern 2025-05-07 07:31:07 -06:00
blk-merge.c block: use plug request list tail for one-shot backmerge attempt 2025-06-11 08:48:46 -06:00
blk-mq-cpumap.c blk-mq: create correct map for fallback case 2025-01-23 06:34:32 -07:00
blk-mq-debugfs.c block: add new helper for disabling elevator switch when deleting disk 2025-05-06 07:43:43 -06:00
blk-mq-debugfs.h block: Replace zone_wlock debugfs entry with zone_wplugs entry 2024-04-17 08:44:03 -06:00
blk-mq-dma.c blk-mq: add a copyright notice to blk-mq-dma.c 2025-05-16 08:43:41 -06:00
blk-mq-sched.c block: fail to show/store elevator sysfs attribute if elevator is dying 2025-05-06 07:43:43 -06:00
blk-mq-sched.h
blk-mq-sysfs.c block: protect hctx attributes/params using q->elevator_lock 2025-03-10 07:31:06 -06:00
blk-mq-tag.c block: remove unused parameter 2025-03-12 08:25:28 -06:00
blk-mq.c block: restore two stage elevator switch while running nr_hw_queue update 2025-08-15 16:38:24 +02:00
blk-mq.h block: clean up blk_mq_in_flight_rw() 2025-05-10 16:11:21 +08:00
blk-pm.c block: force noio scope in blk_mq_freeze_queue 2025-01-31 07:20:08 -07:00
blk-pm.h
blk-rq-qos.c block: blk-rq-qos: guard rq-qos helpers by static key 2025-04-21 05:07:03 -06:00
blk-rq-qos.h block: blk-rq-qos: guard rq-qos helpers by static key 2025-04-21 05:07:03 -06:00
blk-settings.c block: ensure discard_granularity is zero when discard is not supported 2025-08-15 16:39:24 +02:00
blk-stat.c treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
blk-stat.h treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
blk-sysfs.c block: fix kobject leak in blk_unregister_queue 2025-07-11 20:39:23 -06:00
blk-throttle.c treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
blk-throttle.h blk-throttle: Prevents the bps restricted io from entering the bps queue again 2025-05-13 12:08:27 -06:00
blk-timeout.c
blk-wbt.c for-6.16/block-20250523 2025-05-26 11:39:36 -07:00
blk-wbt.h blk-wbt: remove the separate write cache tracking 2023-12-26 09:28:10 -07:00
blk-zoned.c block: don't use submit_bio_noacct_nocheck in blk_zone_wplug_bio_work 2025-06-11 06:42:27 -06:00
blk.h block: restore two stage elevator switch while running nr_hw_queue update 2025-08-15 16:38:24 +02:00
bsg-lib.c block: remove unused parameter 'q' parameter in __blk_rq_map_sg() 2025-03-13 05:46:19 -06:00
bsg.c
disk-events.c
early-lookup.c wrapper for access to ->bd_partno 2024-05-02 17:48:09 -04:00
elevator.c block: restore two stage elevator switch while running nr_hw_queue update 2025-08-15 16:38:24 +02:00
elevator.h block: move wbt_enable_default() out of queue freezing from sched ->exit() 2025-05-06 07:43:43 -06:00
fops.c block: expose write streams for block device nodes 2025-05-06 07:46:43 -06:00
genhd.c block: fix false warning in bdev_count_inflight_rw() 2025-06-26 07:34:11 -06:00
holder.c block: fix deadlock between bd_link_disk_holder and partition scan 2024-02-23 07:44:19 -07:00
ioctl.c block: fix race between set_blocksize and read paths 2025-04-23 13:58:06 -06:00
ioprio.c block: remove test of incorrect io priority level 2025-05-08 09:04:12 -06:00
Kconfig block: Remove obsolete configs BLK_MQ_{PCI,VIRTIO} 2025-05-14 05:43:56 -06:00
Kconfig.iosched
kyber-iosched.c treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
Makefile blk-mq: move the DMA mapping code to a separate file 2025-05-16 08:43:41 -06:00
mq-deadline.c block: take rq_list instead of plug in dispatch functions 2025-05-02 09:21:08 -06:00
opal_proto.h block: sed-opal: handle empty atoms when parsing response 2024-02-16 15:52:45 -07:00
sed-opal.c block: sed-opal: add ioctl IOC_OPAL_SET_SID_PW 2024-10-22 08:16:40 -06:00
t10-pi.c for-6.15/block-20250322 2025-03-26 18:08:55 -07:00