Mingzhe Zou 74e2d61e4f bcache: fixup multiple threads crash ... commit 887554ab96 upstream. When multiple threads to check btree nodes in parallel, the main thread wait for all threads to stop or CACHE_SET_IO_DISABLE flag: wait_event_interruptible(check_state->wait, atomic_read(&check_state->started) == 0 || test_bit(CACHE_SET_IO_DISABLE, &c->flags)); However, the bch_btree_node_read and bch_btree_node_read_done maybe call bch_cache_set_error, then the CACHE_SET_IO_DISABLE will be set. If the flag already set, the main thread return error. At the same time, maybe some threads still running and read NULL pointer, the kernel will crash. This patch change the event wait condition, the main thread must wait for all threads to stop. Fixes: 8e7102273f ("bcache: make bch_btree_check() to be multithreaded") Signed-off-by: Mingzhe Zou <mingzhe.zou@easystack.cn> Cc: stable@vger.kernel.org # v5.7+ Signed-off-by: Coly Li <colyli@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-04-08 14:23:01 +02:00
..
bcache	bcache: fixup multiple threads crash	2022-04-08 14:23:01 +02:00
persistent-data	dm space map common: add bounds check to sm_ll_lookup_bitmap()	2022-01-27 11:04:53 +01:00
Kconfig	dm: make EBS depend on !HIGHMEM	2021-08-16 10:50:32 -06:00
Makefile	dm ima: measure data on table load	2021-08-10 13:32:40 -04:00
dm-bio-prison-v1.c	…
dm-bio-prison-v1.h	…
dm-bio-prison-v2.c	…
dm-bio-prison-v2.h	…
dm-bio-record.h	…
dm-bufio.c	…
dm-builtin.c	…
dm-cache-background-tracker.c	…
dm-cache-background-tracker.h	…
dm-cache-block-types.h	…
dm-cache-metadata.c	…
dm-cache-metadata.h	…
dm-cache-policy-internal.h	…
dm-cache-policy-smq.c	…
dm-cache-policy.c	…
dm-cache-policy.h	…
dm-cache-target.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-clone-metadata.c	…
dm-clone-metadata.h	…
dm-clone-target.c	dm clone: make array 'descs' static	2021-10-12 13:54:10 -04:00
dm-core.h	dm: interlock pending dm_io and dm_wait_for_bios_completion	2022-04-08 14:22:57 +02:00
dm-crypt.c	dm crypt: use in_hardirq() instead of deprecated in_irq()	2021-08-20 16:25:07 -04:00
dm-delay.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-dust.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-ebs-target.c	- Add DM infrastructure for IMA-based remote attestion. These changes	2021-08-31 14:55:09 -07:00
dm-era-target.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-exception-store.c	…
dm-exception-store.h	…
dm-flakey.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-ima.c	integrity-v5.15	2021-09-02 12:51:41 -07:00
dm-ima.h	dm ima: add version info to dm related events in ima log	2021-08-20 15:59:47 -04:00
dm-init.c	…
dm-integrity.c	dm integrity: set journal entry unused when shrinking device	2022-04-08 14:22:57 +02:00
dm-io-tracker.h	dm writecache: make writeback pause configurable	2021-06-28 16:30:13 -04:00
dm-io.c	…
dm-ioctl.c	dm ima: measure data on device rename	2021-08-10 13:34:23 -04:00
dm-kcopyd.c	dm writecache: have ssd writeback wait if the kcopyd workqueue is busy	2021-06-15 15:42:03 -04:00
dm-linear.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-log-userspace-base.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-log-userspace-transfer.c	…
dm-log-userspace-transfer.h	…
dm-log-writes.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-log.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-mpath.c	dm ima: update dm target attributes for ima measurements	2021-08-20 16:07:36 -04:00
dm-mpath.h	…
dm-path-selector.c	…
dm-path-selector.h	…
dm-ps-historical-service-time.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-ps-io-affinity.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-ps-queue-length.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-ps-round-robin.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-ps-service-time.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-raid.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-raid1.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-region-hash.c	…
dm-rq.c	dm rq: don't queue request to blk-mq during DM suspend	2021-10-12 13:54:10 -04:00
dm-rq.h	…
dm-snap-persistent.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-snap-transient.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-snap.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-stats.c	dm: fix double accounting of flush with data	2022-04-08 14:22:57 +02:00
dm-stats.h	dm: fix double accounting of flush with data	2022-04-08 14:22:57 +02:00
dm-stripe.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-switch.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-sysfs.c	…
dm-table.c	libnvdimm for v5.15	2021-09-09 11:39:57 -07:00
dm-target.c	…
dm-thin-metadata.c	dm space maps: improve performance with inc/dec on ranges of blocks	2021-06-04 12:07:22 -04:00
dm-thin-metadata.h	…
dm-thin.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-uevent.c	…
dm-uevent.h	…
dm-unstripe.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-verity-fec.c	…
dm-verity-fec.h	…
dm-verity-target.c	dm verity: skip redundant verity_handle_err() on I/O errors	2021-10-12 13:54:09 -04:00
dm-verity-verify-sig.c	…
dm-verity-verify-sig.h	…
dm-verity.h	…
dm-writecache.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-zero.c	…
dm-zone.c	dm zone: fix dm_revalidate_zones() memory allocation	2021-06-25 15:25:23 -04:00
dm-zoned-metadata.c	dm zoned: check zone capacity	2021-06-04 12:07:28 -04:00
dm-zoned-reclaim.c	dm kcopyd: avoid useless atomic operations	2021-06-04 12:07:24 -04:00
dm-zoned-target.c	dm: update target status functions to support IMA measurement	2021-08-10 13:34:23 -04:00
dm-zoned.h	…
dm.c	dm: fix double accounting of flush with data	2022-04-08 14:22:57 +02:00
dm.h	dm: introduce zone append emulation	2021-06-04 12:07:37 -04:00
md-autodetect.c	…
md-bitmap.c	md: Constify attribute_group structs	2021-06-14 22:32:07 -07:00
md-bitmap.h	…
md-cluster.c	…
md-cluster.h	…
md-faulty.c	md: mark some personalities as deprecated	2021-06-14 22:32:07 -07:00
md-linear.c	md: mark some personalities as deprecated	2021-06-14 22:32:07 -07:00
md-linear.h	…
md-multipath.c	md: mark some personalities as deprecated	2021-06-14 22:32:07 -07:00
md-multipath.h	…
md.c	block: drop unused includes in <linux/genhd.h>	2022-03-16 14:23:46 +01:00
md.h	md: Move alloc/free acct bioset in to personality	2022-01-27 11:05:08 +01:00
raid0.c	md: Move alloc/free acct bioset in to personality	2022-01-27 11:05:08 +01:00
raid0.h	…
raid1-10.c	…
raid1.c	md/raid1: fix missing bitmap update w/o WriteMostly devices	2022-01-11 15:35:15 +01:00
raid1.h	md/raid1: enable io accounting	2021-06-14 22:32:07 -07:00
raid5-cache.c	…
raid5-log.h	…
raid5-ppl.c	…
raid5.c	md: Move alloc/free acct bioset in to personality	2022-01-27 11:05:08 +01:00
raid5.h	…
raid10.c	for-5.15/drivers-2021-08-30	2021-08-30 19:01:46 -07:00
raid10.h	md/raid10: enable io accounting	2021-06-14 22:32:07 -07:00