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Eric Biggers 47a846536e block/keyslot-manager: prevent crash when num_slots=1 
If there is only one keyslot, then blk_ksm_init() computes
slot_hashtable_size=1 and log_slot_ht_size=0.  This causes
blk_ksm_find_keyslot() to crash later because it uses
hash_ptr(key, log_slot_ht_size) to find the hash bucket containing the
key, and hash_ptr() doesn't support the bits == 0 case.

Fix this by making the hash table always have at least 2 buckets.

Tested by running:

    kvm-xfstests -c ext4 -g encrypt -m inlinecrypt \
                 -o blk-crypto-fallback.num_keyslots=1

Fixes: 1b2628397058 ("block: Keyslot Manager for Inline Encryption")
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-11-20 11:52:52 -07:00
..
partitions
block-5.10-2020-10-12
2020-10-13 12:12:44 -07:00
badblocks.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
bfq-cgroup.c
bfq: fix blkio cgroup leakage v4
2020-08-18 07:48:08 -07:00
bfq-iosched.c
block-5.10-2020-10-12
2020-10-13 12:12:44 -07:00
bfq-iosched.h
bfq: fix blkio cgroup leakage v4
2020-08-18 07:48:08 -07:00
bfq-wf2q.c
bfq: fix blkio cgroup leakage v4
2020-08-18 07:48:08 -07:00
bio-integrity.c
block: make function __bio_integrity_free() static
2020-07-02 12:38:18 -06:00
bio.c
block: advance iov_iter on bio_add_hw_page failure
2020-10-28 07:51:02 -06:00
blk-cgroup-rwstat.c
blk-cgroup: separate out blkg_rwstat under CONFIG_BLK_CGROUP_RWSTAT
2019-11-07 12:28:13 -07:00
blk-cgroup-rwstat.h
blk-cgroup: separate out blkg_rwstat under CONFIG_BLK_CGROUP_RWSTAT
2019-11-07 12:28:13 -07:00
blk-cgroup.c
blk-cgroup: fix a hd_struct leak in blkcg_fill_root_iostats
2020-11-14 11:17:34 -07:00
blk-core.c
block: add zone specific block statuses
2020-10-13 15:05:05 -06:00
blk-crypto-fallback.c
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
blk-crypto-internal.h
block: make blk_crypto_rq_bio_prep() able to fail
2020-10-05 10:47:43 -06:00
blk-crypto.c
block: warn if !__GFP_DIRECT_RECLAIM in bio_crypt_set_ctx()
2020-10-05 10:47:43 -06:00
blk-exec.c
block: add a blk_account_io_merge_bio helper
2020-05-27 05:21:23 -06:00
blk-flush.c
block: mark flush request as IDLE when it is really finished
2020-11-13 14:24:16 -07:00
blk-integrity.c
block: remove the unused blk_integrity_merge_bio export
2020-10-06 07:29:53 -06:00
blk-ioc.c
block: remove retry loop in ioc_release_fn()
2020-07-16 10:22:15 -06:00
blk-iocost.c
block: use helper function to test queue register
2020-10-09 12:34:06 -06:00
blk-iolatency.c
block: Remove redundant 'return' statement
2020-10-08 07:59:48 -06:00
blk-lib.c
block: add a bdev_is_partition helper
2020-09-25 08:18:57 -06:00
blk-map.c
block: fix bmd->is_null_mapped initialization
2020-09-23 09:18:39 -06:00
blk-merge.c
block: move blk_mq_sched_try_merge to blk-merge.c
2020-10-06 07:29:53 -06:00
blk-mq-cpumap.c
blk-mq: remove the calling of local_memory_node()
2020-10-20 07:08:17 -06:00
blk-mq-debugfs-zoned.c
block: Cleanup license notice
2019-01-17 21:21:40 -07:00
blk-mq-debugfs.c
bdi: replace BDI_CAP_STABLE_WRITES with a queue and a sb flag
2020-09-24 13:43:39 -06:00
blk-mq-debugfs.h
blk-mq: no need to check return value of debugfs_create functions
2019-06-13 03:00:30 -06:00
blk-mq-pci.c
block: Fix blk_mq_*_map_queues() kernel-doc headers
2019-05-31 15:12:34 -06:00
blk-mq-rdma.c
block: Fix blk_mq_*_map_queues() kernel-doc headers
2019-05-31 15:12:34 -06:00
blk-mq-sched.c
blk-mq: get rid of the dead flush handle code path
2020-10-09 12:35:39 -06:00
blk-mq-sched.h
block-5.10-2020-10-12
2020-10-13 12:12:44 -07:00
blk-mq-sysfs.c
blk-mq: move cancel of hctx->run_work to the front of blk_exit_queue
2020-10-09 12:46:28 -06:00
blk-mq-tag.c
block-mq: fix comments in blk_mq_queue_tag_busy_iter
2020-09-29 08:11:00 -06:00
blk-mq-tag.h
blk-mq: Relocate hctx_may_queue()
2020-09-03 15:20:47 -06:00
blk-mq-virtio.c
blk-mq: Fix typo in comment
2020-03-17 20:55:21 +01:00
blk-mq.c
block-5.10-2020-10-24
2020-10-24 12:46:42 -07:00
blk-mq.h
blk-mq: Record active_queues_shared_sbitmap per tag_set for when using shared sbitmap
2020-09-03 15:20:47 -06:00
blk-pm.c
scsi: block: pm: Simplify resume handling
2020-07-24 22:09:55 -04:00
blk-pm.h
block: remove the queue_lock indirection
2018-11-15 12:17:28 -07:00
blk-rq-qos.c
Revert "blk-rq-qos: remove redundant finish_wait to rq_qos_wait."
2020-07-15 09:33:37 -06:00
blk-rq-qos.h
blk-rq-qos: fix first node deletion of rq_qos_del()
2019-10-15 10:13:13 -06:00
blk-settings.c
block-5.10-2020-10-12
2020-10-13 12:12:44 -07:00
blk-stat.c
blk-stat: make q->stats->lock irqsafe
2020-09-01 16:48:46 -06:00
blk-stat.h
block: deactivate blk_stat timer in wbt_disable_default()
2018-12-12 06:47:51 -07:00
blk-sysfs.c
blk-mq: move cancel of hctx->run_work to the front of blk_exit_queue
2020-10-09 12:46:28 -06:00
blk-throttle.c
blk-throttle: Re-use the throtl_set_slice_end()
2020-10-08 08:01:38 -06:00
blk-timeout.c
block: blk-timeout: delete duplicated word
2020-07-31 16:29:47 -06:00
blk-wbt.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
blk-wbt.h
blk-wbt: remove wbt_update_limits
2020-05-29 16:30:39 -06:00
blk-zoned.c
block: don't do revalidate zones on invalid devices
2020-08-03 09:24:04 -06:00
blk.h
block: move blk_mq_sched_try_merge to blk-merge.c
2020-10-06 07:29:53 -06:00
bounce.c
block: make bio_crypt_clone() able to fail
2020-10-05 10:47:43 -06:00
bsg-lib.c
block: drop double zeroing
2020-09-23 09:18:13 -06:00
bsg.c
compat_ioctl: bsg: add handler
2020-01-03 09:33:21 +01:00
cmdline-parser.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
elevator.c
block: fix comment and add lockdep assert
2020-10-09 12:34:06 -06:00
genhd.c
block: add a return value to set_capacity_revalidate_and_notify
2020-11-12 13:59:04 -07:00
ioctl.c
block: add a bdev_is_partition helper
2020-09-25 08:18:57 -06:00
ioprio.c
block: grant IOPRIO_CLASS_RT to CAP_SYS_NICE
2020-09-01 19:38:33 -06:00
Kconfig
blk-wbt: Remove obsolete multiqueue I/O scheduling comment
2020-09-01 16:49:26 -06:00
Kconfig.iosched
treewide: replace '---help---' in Kconfig files with 'help'
2020-06-14 01:57:21 +09:00
keyslot-manager.c
block/keyslot-manager: prevent crash when num_slots=1
2020-11-20 11:52:52 -07:00
kyber-iosched.c
blk-mq: Use pointers for blk_mq_tags bitmap tags
2020-09-03 15:20:47 -06:00
Makefile
blk-mq: merge blk-softirq.c into blk-mq.c
2020-06-24 09:15:56 -06:00
mq-deadline.c
blk-mq, elevator: Count requests per hctx to improve performance
2020-09-03 15:20:47 -06:00
opal_proto.h
block: sed-opal: Change the check condition for regular session validity
2020-03-12 08:00:10 -06:00
scsi_ioctl.c
drivers-5.10-2020-10-12
2020-10-13 13:04:41 -07:00
sed-opal.c
block: sed-opal: Change the check condition for regular session validity
2020-03-12 08:00:10 -06:00
t10-pi.c
block: Allow t10-pi to be modular
2020-01-06 20:59:04 -07:00