Ming Lei fe76fc6aaf sbitmap: Protect swap_lock from hardirq ... Because we may call blk_mq_get_driver_tag() directly from blk_mq_dispatch_rq_list() without holding any lock, then HARDIRQ may come and the above DEADLOCK is triggered. Commit ab53dcfb3e7b ("sbitmap: Protect swap_lock from hardirq") tries to fix this issue by using 'spin_lock_bh', which isn't enough because we complete request from hardirq context direclty in case of multiqueue. Cc: Clark Williams <williams@redhat.com> Fixes: ab53dcfb3e7b ("sbitmap: Protect swap_lock from hardirq") Cc: Jens Axboe <axboe@kernel.dk> Cc: Ming Lei <ming.lei@redhat.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2019-01-15 16:29:57 +12:00
..
842
fonts	Fonts: New Terminus large console font	2018-12-19 10:42:08 +01:00
lz4
lzo
mpi
raid6	Kbuild late updates for v4.21	2019-01-06 16:33:10 -08:00
reed_solomon
xz
zlib_deflate
zlib_inflate
zstd
.gitignore
argv_split.c
ashldi3.c
ashrdi3.c
asn1_decoder.c
assoc_array.c
atomic64_test.c
atomic64.c
audit.c
bcd.c
bch.c
bitmap.c	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
bitrev.c
bsearch.c
btree.c
bucket_locks.c
bug.c
build_OID_registry
bust_spinlocks.c
chacha.c
check_signature.c
checksum.c
clz_ctz.c
clz_tab.c
cmdline.c
cmpdi2.c
compat_audit.c
cordic.c
cpu_rmap.c
cpumask.c
crc-ccitt.c
crc-itu-t.c
crc-t10dif.c
crc4.c
crc7.c
crc8.c
crc16.c
crc32.c
crc32defs.h
crc32test.c
crc64.c
ctype.c
debug_info.c
debug_locks.c
debugobjects.c	debugobjects: call debug_objects_mem_init eariler	2018-12-28 12:11:45 -08:00
dec_and_lock.c
decompress_bunzip2.c
decompress_inflate.c
decompress_unlz4.c
decompress_unlzma.c
decompress_unlzo.c
decompress_unxz.c
decompress.c
devres.c
digsig.c
div64.c
dump_stack.c
dynamic_debug.c	jump_label: move 'asm goto' support test to Kconfig	2019-01-06 09:46:51 +09:00
dynamic_queue_limits.c
earlycpio.c
error-inject.c
errseq.c
extable.c
fault-inject.c
fdt_empty_tree.c
fdt_ro.c
fdt_rw.c
fdt_strerror.c
fdt_sw.c
fdt_wip.c
fdt.c
find_bit_benchmark.c	lib/find_bit_benchmark.c: align test_find_next_and_bit with others	2019-01-04 13:13:46 -08:00
find_bit.c
flex_array.c
flex_proportions.c
gcd.c
gen_crc32table.c
gen_crc64table.c	lib: don't depend on linux headers being installed.	2018-12-29 11:36:44 -08:00
genalloc.c	lib/genalloc.c: include vmalloc.h	2019-01-05 13:54:53 -08:00
glob.c
globtest.c
hexdump.c
hweight.c
idr.c
inflate.c
int_sqrt.c
interval_tree_test.c
interval_tree.c
iomap_copy.c
iomap.c
iommu-helper.c
ioremap.c	lib/ioremap: ensure break-before-make is used for huge p4d mappings	2018-12-28 12:11:50 -08:00
iov_iter.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-01-05 13:18:59 -08:00
irq_poll.c
irq_regs.c
is_single_threaded.c
jedec_ddr_data.c
kasprintf.c
Kconfig	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md into for-linus	2019-01-03 08:21:02 -07:00
Kconfig.debug	Kconfig updates for v4.21	2018-12-29 13:03:29 -08:00
Kconfig.kasan	kasan: add CONFIG_KASAN_GENERIC and CONFIG_KASAN_SW_TAGS	2018-12-28 12:11:43 -08:00
Kconfig.kgdb
Kconfig.ubsan
kfifo.c
klist.c
kobject_uevent.c
kobject.c
kstrtox.c
kstrtox.h
lcm.c
libcrc32c.c
list_debug.c
list_sort.c
llist.c
locking-selftest-hardirq.h
locking-selftest-mutex.h
locking-selftest-rlock-hardirq.h
locking-selftest-rlock-softirq.h
locking-selftest-rlock.h
locking-selftest-rsem.h
locking-selftest-rtmutex.h
locking-selftest-softirq.h
locking-selftest-spin-hardirq.h
locking-selftest-spin-softirq.h
locking-selftest-spin.h
locking-selftest-wlock-hardirq.h
locking-selftest-wlock-softirq.h
locking-selftest-wlock.h
locking-selftest-wsem.h
locking-selftest.c
lockref.c
logic_pio.c
lru_cache.c
lshrdi3.c
Makefile	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2018-12-27 13:53:32 -08:00
memcat_p.c
memory-notifier-error-inject.c
memweight.c
muldi3.c
net_utils.c
netdev-notifier-error-inject.c
nlattr.c
nmi_backtrace.c
nodemask.c
notifier-error-inject.c
notifier-error-inject.h
objagg.c
of-reconfig-notifier-error-inject.c
oid_registry.c
once.c
parman.c
parser.c
pci_iomap.c
percpu_counter.c
percpu_test.c
percpu-refcount.c
plist.c
pm-notifier-error-inject.c
prime_numbers.c
radix-tree.c
random32.c
ratelimit.c
rational.c
rbtree_test.c
rbtree.c
reciprocal_div.c
refcount.c
rhashtable.c
sbitmap.c	sbitmap: Protect swap_lock from hardirq	2019-01-15 16:29:57 +12:00
scatterlist.c
seq_buf.c	seq_buf: Use size_t for len in seq_buf_puts()	2018-12-22 08:21:03 -05:00
sg_pool.c
sg_split.c
sha1.c
sha256.c
show_mem.c	lib/show_mem.c: drop pgdat_resize_lock in show_mem()	2018-12-28 12:11:49 -08:00
siphash.c
smp_processor_id.c
sort.c
stackdepot.c
stmp_device.c
string_helpers.c
string.c
strncpy_from_user.c	make 'user_access_begin()' do 'access_ok()'	2019-01-04 12:56:09 -08:00
strnlen_user.c	make 'user_access_begin()' do 'access_ok()'	2019-01-04 12:56:09 -08:00
syscall.c
test_bitfield.c
test_bitmap.c
test_bpf.c
test_debug_virtual.c	lib: fix build failure in CONFIG_DEBUG_VIRTUAL test	2018-12-17 22:12:30 +11:00
test_firmware.c
test_hash.c
test_hexdump.c
test_ida.c
test_kasan.c
test_kmod.c
test_list_sort.c
test_memcat_p.c
test_module.c
test_objagg.c
test_overflow.c
test_parman.c
test_printf.c
test_rhashtable.c	test_rhashtable: remove semaphore usage	2018-12-18 15:12:53 -08:00
test_siphash.c
test_sort.c
test_static_key_base.c
test_static_keys.c
test_string.c
test_sysctl.c
test_ubsan.c
test_user_copy.c
test_uuid.c
test_xarray.c	XArray: Fix xa_alloc when id exceeds max	2018-12-13 14:07:33 -05:00
test-kstrtox.c
test-string_helpers.c
textsearch.c
timerqueue.c
ts_bm.c
ts_fsm.c
ts_kmp.c
ubsan.c
ubsan.h
ucmpdi2.c
ucs2_string.c
usercopy.c	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
uuid.c
vsprintf.c
win_minmax.c
xarray.c	XArray: Fix xa_alloc when id exceeds max	2018-12-13 14:07:33 -05:00
xxhash.c