Shin'ichiro Kawasaki e511350590 block: Discard page cache of zone reset target range ... When zone reset ioctl and data read race for a same zone on zoned block devices, the data read leaves stale page cache even though the zone reset ioctl zero clears all the zone data on the device. To avoid non-zero data read from the stale page cache after zone reset, discard page cache of reset target zones in blkdev_zone_mgmt_ioctl(). Introduce the helper function blkdev_truncate_zone_range() to discard the page cache. Ensure the page cache discarded by calling the helper function before and after zone reset in same manner as fallocate does. This patch can be applied back to the stable kernel version v5.10.y. Rework is needed for older stable kernels. Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com> Fixes: 3ed05a987e ("blk-zoned: implement ioctls") Cc: <stable@vger.kernel.org> # 5.10+ Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Link: https://lore.kernel.org/r/20210311072546.678999-1-shinichiro.kawasaki@wdc.com Signed-off-by: Jens Axboe <axboe@kernel.dk>		2021-03-11 11:49:25 -07:00
..
partitions	block: revert "block: fix bd_size_lock use"	2021-02-28 20:12:02 -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/bfq: update comments and default value in docs for fifo_expire	2021-03-02 11:25:38 -07:00
bfq-iosched.h	block, bfq: make waker-queue detection more robust	2021-01-25 14:18:37 -07:00
bfq-wf2q.c	bfq: don't duplicate code for different paths	2021-01-24 18:20:47 -07:00
bio-integrity.c	block: use bi_max_vecs to find the bvec pool	2021-02-08 08:33:16 -07:00
bio.c	block: rename BIO_MAX_PAGES to BIO_MAX_VECS	2021-03-11 07:47:48 -07:00
blk-cgroup-rwstat.c	blk-cgroup: Fix the recursive blkg rwstat	2021-03-05 11:32:15 -07:00
blk-cgroup-rwstat.h
blk-cgroup.c	for-5.12/block-2021-02-17	2021-02-21 11:02:48 -08:00
blk-core.c	block: get rid of the trace rq insert wrapper	2021-02-22 06:37:41 -07:00
blk-crypto-fallback.c	block: rename BIO_MAX_PAGES to BIO_MAX_VECS	2021-03-11 07:47:48 -07:00
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	dm: support key eviction from keyslot managers of underlying devices	2021-02-11 09:45:25 -05:00
blk-exec.c	block: drop removed argument from kernel-doc of blk_execute_rq()	2021-01-29 07:43:29 -07:00
blk-flush.c	block: use an on-stack bio in blkdev_issue_flush	2021-01-27 09:51:48 -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	blk-iocost: fix NULL iocg deref from racing against initialization	2021-01-05 11:33:32 -07:00
blk-iolatency.c	block: Remove redundant 'return' statement	2020-10-08 07:59:48 -06:00
blk-lib.c	block: rename BIO_MAX_PAGES to BIO_MAX_VECS	2021-03-11 07:47:48 -07:00
blk-map.c	block: rename BIO_MAX_PAGES to BIO_MAX_VECS	2021-03-11 07:47:48 -07:00
blk-merge.c	block: store a block_device pointer in struct bio	2021-01-24 18:17:20 -07:00
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
blk-mq-debugfs.c	block: Drop leftover references to RQF_SORTED	2021-03-01 10:15:07 -07:00
blk-mq-debugfs.h
blk-mq-pci.c
blk-mq-rdma.c
blk-mq-sched.c	block: Drop leftover references to RQF_SORTED	2021-03-01 10:15:07 -07:00
blk-mq-sched.h	block: get rid of the trace rq insert wrapper	2021-02-22 06:37:41 -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	for-5.12/block-ipi-2021-02-21	2021-02-22 10:53:05 -08:00
blk-mq.h	blk-mq: test QUEUE_FLAG_HCTX_ACTIVE for sbitmap_shared in hctx_may_queue	2021-01-24 21:25:17 -07:00
blk-pm.c	scsi: block: Fix a race in the runtime power management code	2020-12-09 11:41:41 -05:00
blk-pm.h	block: Remove unused blk_pm_*() function definitions	2021-02-22 06:33:48 -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-settings.c	blk-settings: align max_sectors on "logical_block_size" boundary	2021-02-23 19:25:36 -07:00
blk-stat.c	blk-stat: make q->stats->lock irqsafe	2020-09-01 16:48:46 -06:00
blk-stat.h
blk-sysfs.c	block: fix potential IO hang when turning off io_poll	2021-02-22 06:40:02 -07:00
blk-throttle.c	block: store a block_device pointer in struct bio	2021-01-24 18:17:20 -07:00
blk-timeout.c	block: blk-timeout: delete duplicated word	2020-07-31 16:29:47 -06:00
blk-wbt.c	blk: wbt: remove unused parameter from wbt_should_throttle	2021-01-26 13:13:00 -07:00
blk-wbt.h	blk-wbt: remove wbt_update_limits	2020-05-29 16:30:39 -06:00
blk-zoned.c	block: Discard page cache of zone reset target range	2021-03-11 11:49:25 -07:00
blk.h	block: introduce blk_queue_clear_zone_settings()	2021-02-10 07:44:41 -07:00
bounce.c	block: rename BIO_MAX_PAGES to BIO_MAX_VECS	2021-03-11 07:47:48 -07:00
bsg-lib.c	block: drop double zeroing	2020-09-23 09:18:13 -06:00
bsg.c	block: remove unnecessary argument from blk_execute_rq	2021-01-24 21:52:39 -07:00
cmdline-parser.c
elevator.c	block: fix comment and add lockdep assert	2020-10-09 12:34:06 -06:00
genhd.c	block: Suppress uevent for hidden device when removed	2021-03-11 11:48:25 -07:00
ioctl.c	block: reopen the device in blkdev_reread_part	2021-02-23 19:23:22 -07:00
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	- Fix DM integrity's HMAC support to provide enhanced security of	2021-02-22 10:22:54 -08:00
kyber-iosched.c	kyber: introduce kyber_depth_updated()	2021-02-22 12:37:57 -07:00
Makefile	blk-mq: merge blk-softirq.c into blk-mq.c	2020-06-24 09:15:56 -06:00
mq-deadline.c	block: get rid of the trace rq insert wrapper	2021-02-22 06:37:41 -07:00
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	block: remove unnecessary argument from blk_execute_rq	2021-01-24 21:52:39 -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