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Ingo Molnar b483cf3bc2 locking/lockdep: Disable cross-release features for now 
Johan Hovold reported a big lockdep slowdown on his system, caused by lockdep:

> I had noticed that the BeagleBone Black boot time appeared to have
> increased significantly with 4.14 and yesterday I finally had time to
> investigate it.
>
> Boot time (from "Linux version" to login prompt) had in fact doubled
> since 4.13 where it took 17 seconds (with my current config) compared to
> the 35 seconds I now see with 4.14-rc4.
>
> I quick bisect pointed to lockdep and specifically the following commit:
>
>	28a903f63ec0 ("locking/lockdep: Handle non(or multi)-acquisition of a crosslock")

Because the final v4.14 release is close, disable the cross-release lockdep
features for now.

Bisected-by: Johan Hovold <johan@kernel.org>
Debugged-by: Johan Hovold <johan@kernel.org>
Reported-by: Johan Hovold <johan@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Byungchul Park <byungchul.park@lge.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Lindgren <tony@atomide.com>
Cc: kernel-team@lge.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mm@kvack.org
Cc: linux-omap@vger.kernel.org
Link: http://lkml.kernel.org/r/20171014072659.f2yr6mhm5ha3eou7@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-10-14 12:50:26 +02:00
..
842
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2016-03-17 21:38:27 -07:00
fonts
lib/fonts/Kconfig: keep non-Sparc fonts listed together
2017-02-27 18:43:46 -08:00
lz4
lib/lz4: make arrays static const, reduces object code size
2017-10-03 17:54:25 -07:00
lzo
lzo: check for length overrun in variable length encoding.
2014-09-28 11:08:01 +02:00
mpi
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2017-08-22 14:53:32 +08:00
raid6
Merge tag 'md/4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md
2017-09-07 12:41:48 -07:00
reed_solomon
…
xz
lib/xz: enable all filters by default in Kconfig
2014-06-04 16:54:18 -07:00
zlib_deflate
zlib_deflate/deftree: remove bi_reverse()
2015-09-10 13:29:01 -07:00
zlib_inflate
lib/zlib_inflate/inftrees.c: fix potential buffer overflow
2017-05-08 17:15:12 -07:00
zstd
lib: Add zstd modules
2017-08-15 09:02:08 -07:00
.gitignore
…
argv_split.c
…
asn1_decoder.c
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2016-05-17 09:33:39 -07:00
assoc_array.c
assoc_array: fix path to assoc_array documentation
2017-08-30 16:40:11 -06:00
atomic64_test.c
lib/atomic64_test.c: add a test that atomic64_inc_not_zero() returns an int
2017-07-14 15:05:13 -07:00
atomic64.c
locking/atomic: Implement atomic{,64,_long}_fetch_{add,sub,and,andnot,or,xor}{,_relaxed,_acquire,_release}()
2016-06-16 10:48:32 +02:00
audit.c
syscalls: implement execveat() system call
2014-12-13 12:42:51 -08:00
bcd.c
…
bch.c
…
bitmap.c
lib/bitmap.c: make bitmap_parselist() thread-safe and much faster
2017-09-08 18:26:49 -07:00
bitrev.c
ARM: 8187/1: add CONFIG_HAVE_ARCH_BITREVERSE to support rbit instruction
2014-12-22 16:43:06 +00:00
bsearch.c
lib/bsearch.c: micro-optimize pivot position calculation
2017-07-10 16:32:35 -07:00
btree.c
treewide: Remove old email address
2015-11-23 09:44:58 +01:00
bug.c
debug: Add _ONCE() logic to report_bug()
2017-03-30 09:37:20 +02:00
build_OID_registry
X.509: do not emit any informational output
2013-06-19 17:54:06 +02:00
bust_spinlocks.c
…
chacha20.c
random: replace non-blocking pool with a Chacha20-based CRNG
2016-07-03 00:57:23 -04:00
check_signature.c
…
checksum.c
ipv4: Update parameters for csum_tcpudp_magic to their original types
2016-03-13 23:55:13 -04:00
clz_ctz.c
lib/clz_ctz.c: add prototype declarations in lib/clz_ctz.c
2014-04-03 16:21:12 -07:00
clz_tab.c
…
cmdline.c
lib/cmdline.c: remove meaningless comment
2017-09-08 18:26:49 -07:00
compat_audit.c
audit: Add generic compat syscall support
2014-03-20 10:11:35 -04:00
cordic.c
…
cpu_rmap.c
sched/topology: Rename topology_thread_cpumask() to topology_sibling_cpumask()
2015-05-27 15:22:15 +02:00
cpumask.c
cpumask: make cpumask_next() out-of-line
2017-09-08 18:26:51 -07:00
crc4.c
lib: Add crc4 module
2017-06-09 11:52:07 +02:00
crc7.c
lib/crc7: Shift crc7() output left 1 bit
2014-05-16 14:26:52 -04:00
crc8.c
…
crc16.c
…
crc32.c
lib: add module support to crc32 tests
2017-02-24 17:46:57 -08:00
crc32defs.h
…
crc32test.c
lib: add module support to crc32 tests
2017-02-24 17:46:57 -08:00
crc-ccitt.c
…
crc-itu-t.c
lib: crc-itu-t.[ch] fix 0x0x prefix in integer constants
2015-05-26 15:26:43 +02:00
crc-t10dif.c
lib: introduce crc_t10dif_update()
2015-05-30 22:42:24 -07:00
ctype.c
…
debug_info.c
kbuild: include core debug info when DEBUG_INFO_REDUCED
2015-06-11 15:08:32 +02:00
debug_locks.c
mutex: Add support for wound/wait style locks
2013-06-26 12:10:56 +02:00
debugobjects.c
debugobjects: Make kmemleak ignore debug objects
2017-08-14 16:51:01 +02:00
dec_and_lock.c
…
decompress_bunzip2.c
lib/decompressors: use real out buf size for gunzip with kernel
2015-09-10 13:29:01 -07:00
decompress_inflate.c
lib/decompressors: use real out buf size for gunzip with kernel
2015-09-10 13:29:01 -07:00
decompress_unlz4.c
lib/decompress_unlz4: change module to work with new LZ4 module version
2017-02-24 17:46:57 -08:00
decompress_unlzma.c
lib/decompress_unlzma: Do a NULL check for pointer
2015-09-10 13:29:01 -07:00
decompress_unlzo.c
lib/decompressors: use real out buf size for gunzip with kernel
2015-09-10 13:29:01 -07:00
decompress_unxz.c
lib/decompressors: use real out buf size for gunzip with kernel
2015-09-10 13:29:01 -07:00
decompress.c
lib/decompress: set the compressor name to NULL on error
2015-07-17 16:39:54 -07:00
devres.c
devres: fix devm_ioremap_*() offset parameter kerneldoc description
2017-04-24 13:53:13 -05:00
digsig.c
KEYS: Differentiate uses of rcu_dereference_key() and user_key_payload()
2017-03-02 10:09:00 +11:00
div64.c
__div64_32(): make it overridable at compile time
2015-11-16 14:42:12 -05:00
dma-debug.c
dmaengine updates for 4.12-rc1
2017-05-09 15:40:28 -07:00
dma-noop.c
dma: Take into account dma_pfn_offset
2017-06-28 06:55:01 -07:00
dma-virt.c
dma-virt: remove dma_supported and mapping_error methods
2017-06-28 06:54:41 -07:00
dump_stack.c
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>
2017-03-02 08:42:34 +01:00
dynamic_debug.c
dynamic_debug: add jump label support
2016-08-04 08:50:07 -04:00
dynamic_queue_limits.c
lib/dynamic_queue_limits.c: simplify includes
2015-02-12 18:54:15 -08:00
earlycpio.c
lib/cpio: Make find_cpio_data()'s offset arg optional
2016-06-08 11:04:19 +02:00
errseq.c
errseq: rename __errseq_set to errseq_set
2017-07-26 12:24:36 -04:00
extable.c
lib/extable.c: use bsearch() library function in search_extable()
2017-07-10 16:32:35 -07:00
fault-inject.c
fault-inject: fix wrong should_fail() decision in task context
2017-08-10 15:54:06 -07:00
fdt_empty_tree.c
lib: add fdt_empty_tree.c
2014-04-30 19:49:37 +01:00
fdt_ro.c
…
fdt_rw.c
…
fdt_strerror.c
…
fdt_sw.c
…
fdt_wip.c
…
fdt.c
…
find_bit.c
lib/find_bit.c: micro-optimise find_next_*_bit
2017-02-24 17:46:57 -08:00
flex_array.c
reciprocal_divide: update/correction of the algorithm
2014-01-21 23:17:20 -08:00
flex_proportions.c
percpu_counter: Rename __percpu_counter_add to percpu_counter_add_batch
2017-06-20 15:42:32 -04:00
gcd.c
lib/GCD.c: use binary GCD algorithm instead of Euclidean
2016-05-20 17:58:30 -07:00
gen_crc32table.c
lib: crc32: constify crc32 lookup table
2015-02-13 21:21:35 -08:00
genalloc.c
lib/genalloc.c: start search from start of chunk
2016-10-27 18:43:43 -07:00
glob.c
lib: add module support to glob tests
2017-02-24 17:46:57 -08:00
globtest.c
lib: add module support to glob tests
2017-02-24 17:46:57 -08:00
hexdump.c
lib/hexdump.c: return -EINVAL in case of error in hex2bin()
2017-09-08 18:26:49 -07:00
hweight.c
x86/hweight: Get rid of the special calling convention
2016-06-08 15:01:02 +02:00
idr.c
lib/idr.c: fix comment for idr_replace()
2017-10-03 17:54:25 -07:00
inflate.c
…
int_sqrt.c
…
interval_tree_test.c
lib/interval_tree: fast overlap detection
2017-09-08 18:26:49 -07:00
interval_tree.c
lib/interval_tree.c: simplify includes
2015-02-12 18:54:15 -08:00
iomap_copy.c
lib/iomap_copy.c: add __ioread32_copy()
2016-01-20 17:09:18 -08:00
iomap.c
Kconfig: rename HAS_IOPORT to HAS_IOPORT_MAP
2014-04-07 16:36:11 -07:00
iommu-common.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
2015-11-05 16:34:48 -08:00
iommu-helper.c
lib/iommu-helper: skip to next segment
2016-08-02 19:35:07 -04:00
ioremap.c
mm: convert generic code to 5-level paging
2017-03-09 11:48:47 -08:00
iov_iter.c
iov_iter: fix page_copy_sane for compound pages
2017-09-20 23:27:48 -04:00
irq_poll.c
This adds a new gcc plugin named "latent_entropy". It is designed to
2016-10-15 10:03:15 -07:00
irq_regs.c
…
is_single_threaded.c
sched/headers: Prepare to move 'init_task' and 'init_thread_union' from <linux/sched.h> to <linux/sched/task.h>
2017-03-02 08:42:38 +01:00
jedec_ddr_data.c
…
kasprintf.c
lib/kasprintf.c: add sanity check to kvasprintf
2016-01-16 11:17:27 -08:00
Kconfig
Merge branch 'zstd-minimal' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
2017-09-14 17:30:49 -07:00
Kconfig.debug
locking/lockdep: Disable cross-release features for now
2017-10-14 12:50:26 +02:00
Kconfig.kasan
mm, kasan: switch SLUB to stackdepot, enable memory quarantine for SLUB
2016-07-28 16:07:41 -07:00
Kconfig.kgdb
lib: update location of kgdb documentation
2017-05-16 08:44:22 -03:00
Kconfig.kmemcheck
…
Kconfig.ubsan
Kconfig: lib/Kconfig.ubsan fix reference to ubsan documentation
2016-12-14 16:04:08 -08:00
kfifo.c
kfifo: use BUG_ON
2014-08-08 15:57:25 -07:00
klist.c
klist: fix starting point removed bug in klist iterators
2016-02-07 22:18:47 -08:00
kobject_uevent.c
driver core: suppress sending MODALIAS in UNBIND uevents
2017-09-18 16:48:33 +02:00
kobject.c
kobject: Export kobject_get_unless_zero()
2017-03-22 20:11:35 -06:00
kstrtox.c
lib/kstrtox.c: use "unsigned int" more
2017-07-10 16:32:34 -07:00
kstrtox.h
…
lcm.c
block: fix blk_stack_limits() regression due to lcm() change
2015-03-31 09:45:50 -06:00
libcrc32c.c
crypto: Work around deallocated stack frame reference gcc bug on sparc.
2017-06-08 17:36:03 +08:00
list_debug.c
bug: switch data corruption check to __must_check
2017-02-24 17:46:56 -08:00
list_sort.c
lib: add module support to linked list sorting tests
2017-05-08 17:15:10 -07:00
llist.c
lib/llist.c: fix data race in llist_del_first
2015-11-06 17:50:42 -08:00
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: Add RT-mutex support
2017-06-08 10:35:50 +02:00
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
locking/selftest: Avoid false BUG report
2017-10-10 10:04:29 +02:00
lockref.c
locking/core: Remove cpu_relax_lowlatency() users
2016-11-16 10:15:10 +01:00
lru_cache.c
lru_cache: Converted lc_seq_printf_status to return void
2015-11-25 09:22:02 -07:00
Makefile
Merge branch 'zstd-minimal' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
2017-09-14 17:30:49 -07:00
memory-notifier-error-inject.c
…
memweight.c
…
net_utils.c
mac_pton: Use bool not int return
2014-06-25 17:45:43 -07:00
netdev-notifier-error-inject.c
net: Add support for CHANGEUPPER notifier error injection
2015-12-03 11:49:23 -05:00
nlattr.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2017-09-03 17:08:42 -07:00
nmi_backtrace.c
printk: Use the main logbuf in NMI when logbuf_lock is available
2017-05-19 14:42:19 +02:00
nodemask.c
include/linux/nodemask.h: create next_node_in() helper
2016-05-19 19:12:14 -07:00
notifier-error-inject.c
…
notifier-error-inject.h
…
of-reconfig-notifier-error-inject.c
…
oid_registry.c
lib/oid_registry.c: X.509: fix the buffer overflow in the utility function for OID string
2017-09-08 18:26:49 -07:00
once.c
once: make helper generic for calling functions once
2015-10-08 05:26:36 -07:00
parman.c
lib: Introduce priority array area manager
2017-02-03 16:35:42 -05:00
parser.c
parser: add u64 number parser
2016-12-06 10:17:03 +02:00
pci_iomap.c
libnvdimm for 4.3:
2015-09-08 14:35:59 -07:00
percpu_counter.c
writeback: rework wb_[dec|inc]_stat family of functions
2017-07-12 16:26:05 -07:00
percpu_ida.c
sched/headers: Prepare to remove the <linux/gfp.h> include from <linux/sched.h>
2017-03-02 08:42:34 +01:00
percpu_test.c
percpu: add test module for various percpu operations
2013-11-13 12:09:11 +09:00
percpu-refcount.c
percpu-refcount: support synchronous switch to atomic mode.
2017-03-22 19:18:43 -07:00
plist.c
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h>
2017-03-02 08:42:27 +01:00
pm-notifier-error-inject.c
…
prime_numbers.c
lib/prime_numbers: Suppress warn on kmalloc failure
2017-01-23 09:17:12 +01:00
radix-tree.c
radix-tree: must check __radix_tree_preload() return value
2017-09-08 18:26:49 -07:00
random32.c
This adds a new gcc plugin named "latent_entropy". It is designed to
2016-10-15 10:03:15 -07:00
ratelimit.c
lib/ratelimit.c: use deferred printk() version
2017-10-03 17:54:26 -07:00
rational.c
…
rbtree_test.c
lib/rbtree_test.c: support rb_root_cached
2017-09-08 18:26:48 -07:00
rbtree.c
rbtree: add some additional comments for rebalancing cases
2017-09-08 18:26:48 -07:00
reciprocal_div.c
reciprocal_divide: update/correction of the algorithm
2014-01-21 23:17:20 -08:00
refcount.c
locking/refcount: Create unchecked atomic_t implementation
2017-06-28 18:54:46 +02:00
rhashtable.c
rhashtable: Documentation tweak
2017-09-19 15:18:33 -07:00
sbitmap.c
sbitmap: add sbitmap_get_shallow() operation
2017-04-14 14:06:52 -06:00
scatterlist.c
scatterlist: add sg_zero_buffer() helper
2017-06-15 14:30:14 +02:00
seq_buf.c
tracing: Use seq_buf_used() in seq_buf_to_user() instead of len
2015-12-23 14:27:20 -05:00
sg_pool.c
lib: scatterlist: move SG pool code from SCSI driver to lib/sg_pool.c
2016-04-15 16:53:14 -04:00
sg_split.c
lib: scatterlist: add sg splitting function
2015-08-24 14:28:01 -06:00
sha1.c
lib: EXPORT_SYMBOL sha_init
2015-03-23 22:12:08 -04:00
show_mem.c
lib/show_mem.c: teach show_mem to work with the given nodemask
2017-02-22 16:41:30 -08:00
siphash.c
siphash: implement HalfSipHash1-3 for hash tables
2017-01-09 13:58:57 -05:00
smp_processor_id.c
sched/core: Enable might_sleep() and smp_processor_id() checks early
2017-05-23 10:01:38 +02:00
sort.c
lib: add CONFIG_TEST_SORT to enable self-test of sort()
2017-02-24 17:46:57 -08:00
stackdepot.c
lib/stackdepot: export save/fetch stack for drivers
2016-11-11 08:12:37 -08:00
stmp_device.c
lib/stmp_device.c: replace module.h include
2015-02-12 18:54:16 -08:00
string_helpers.c
mm: treewide: remove GFP_TEMPORARY allocation flag
2017-09-13 18:53:16 -07:00
string.c
lib/string.c: check for kmalloc() failure
2017-09-08 18:26:49 -07:00
strncpy_from_user.c
lib: harden strncpy_from_user
2016-10-11 15:06:30 -07:00
strnlen_user.c
kill strlen_user()
2017-05-15 23:40:22 -04:00
swiotlb.c
swiotlb: Add warnings for use of bounce buffers with SME
2017-07-18 11:38:03 +02:00
syscall.c
lib/syscall: Clear return values when no stack
2017-03-24 07:43:35 +01:00
test_bitmap.c
lib/test_bitmap.c: use ULL suffix for 64-bit constants
2017-09-13 18:53:15 -07:00
test_bpf.c
bpf: add BPF_J{LT,LE,SLT,SLE} instructions
2017-08-09 16:53:56 -07:00
test_debug_virtual.c
lib: add test module for CONFIG_DEBUG_VIRTUAL
2017-09-08 18:26:49 -07:00
test_firmware.c
test_firmware: add batched firmware tests
2017-08-10 13:58:41 -07:00
test_hash.c
lib/test_hash.c: fix warning in preprocessor symbol evaluation
2016-09-01 17:52:01 -07:00
test_hexdump.c
test_hexdump: print statistics at the end
2016-01-20 17:09:18 -08:00
test_kasan.c
kasan: report only the first error by default
2017-03-31 17:13:30 -07:00
test_kmod.c
test_kmod: flip INT checks to be consistent
2017-09-08 18:26:50 -07:00
test_list_sort.c
lib: add module support to linked list sorting tests
2017-05-08 17:15:10 -07:00
test_module.c
test: add minimal module for verification testing
2014-01-23 16:36:57 -08:00
test_parman.c
lib: fix spelling mistake: "actualy" -> "actually"
2017-02-26 11:03:38 -05:00
test_printf.c
mm, printk: introduce new format string for flags
2016-03-15 16:55:16 -07:00
test_rhashtable.c
lib: test_rhashtable: Fix KASAN warning
2017-07-25 12:35:23 -07:00
test_siphash.c
siphash: implement HalfSipHash1-3 for hash tables
2017-01-09 13:58:57 -05:00
test_sort.c
Revert "lib/test_sort.c: make it explicitly non-modular"
2017-05-08 17:15:10 -07:00
test_static_key_base.c
locking/static_keys: Provide a selftest
2015-08-03 11:51:12 +02:00
test_static_keys.c
locking/static_keys: Avoid nested functions
2016-02-09 10:27:29 +01:00
test_sysctl.c
test_sysctl: test against int proc_dointvec() array support
2017-07-12 16:26:00 -07:00
test_user_copy.c
lib: remove check for AVR32 arch in test_user_copy
2017-05-01 09:36:30 +02:00
test_uuid.c
uuid: fix incorrect uuid_equal conversion in test_uuid_test
2017-07-21 09:38:30 +02:00
test-kstrtox.c
kstrto*: accept "-0" for signed conversion
2015-09-10 13:29:01 -07:00
test-string_helpers.c
lib/test-string_helpers.c: fix and improve string_get_size() tests
2016-02-03 08:28:43 -08:00
textsearch.c
lib/textsearch.c: remove textsearch_put reference from comments
2014-10-14 02:18:14 +02:00
timerqueue.c
timerqueue: Use rb_entry_safe() instead of open-coding it
2017-01-20 08:03:42 +01:00
ts_bm.c
…
ts_fsm.c
…
ts_kmp.c
…
ubsan.c
UBSAN: fix typo in format string
2016-08-02 17:31:41 -04:00
ubsan.h
UBSAN: run-time undefined behavior sanity checker
2016-01-20 17:09:18 -08:00
ucs2_string.c
lib/ucs2_string: Speed up ucs2_utf8size()
2016-09-09 16:08:46 +01:00
usercopy.c
copy_{from,to}_user(): move kasan checks and might_fault() out-of-line
2017-06-29 22:21:20 -04:00
uuid.c
uuid: hoist uuid_is_null() helper from libnvdimm
2017-06-05 16:59:05 +02:00
vsprintf.c
DeviceTree for 4.13:
2017-07-07 10:37:54 -07:00
win_minmax.c
lib/win_minmax: windowed min or max estimator
2016-09-21 00:22:59 -04:00
xxhash.c
lib: Add xxhash module
2017-08-15 09:02:07 -07:00