linux

iv/linux

History

Paul E. McKenney e3ebfb96f3 rcu: Add PROVE_RCU_DELAY to provoke difficult races

There have been some recent bugs that were triggered only when
preemptible RCU's __rcu_read_unlock() was preempted just after setting
->rcu_read_lock_nesting to INT_MIN, which is a low-probability event.
Therefore, reproducing those bugs (to say nothing of gaining confidence
in alleged fixes) was quite difficult.  This commit therefore creates
a new debug-only RCU kernel config option that forces a short delay
in __rcu_read_unlock() to increase the probability of those sorts of
bugs occurring.

Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>

2012-09-23 07:42:49 -07:00

lzo

lib: add support for LZO-compressed kernels

2010-01-11 09:34:04 -08:00

mpi

Remove unused code from MPI library

2012-05-26 11:51:03 +10:00

raid6

lib/raid6: fix sparse warnings in recovery functions

2012-05-28 14:10:22 +10:00

reed_solomon

…

XZ: Fix incorrect XZ_BUF_ERROR

2011-09-21 13:39:59 -07:00

zlib_deflate

zlib: slim down zlib_deflate() workspace when possible

2011-03-22 17:44:17 -07:00

zlib_inflate

inflate_fast: sout is already a short so ptr arith was off by one.

2010-03-12 15:52:44 -08:00

.gitignore

…

argv_split.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

atomic64_test.c

atomic64_test: simplify the #ifdef for atomic64_dec_if_positive() test

2012-07-30 17:25:16 -07:00

atomic64.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

audit.c

audit: support the "standard" <asm-generic/unistd.h>

2011-05-04 14:41:28 -04:00

average.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

bcd.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

bch.c

lib: add shared BCH ECC library

2011-03-11 14:25:50 +00:00

bitmap.c

lib/bitmap.c: fix documentation for scnprintf() functions

2012-05-29 16:22:32 -07:00

bitrev.c

…

bsearch.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

btree.c

btree: catch NULL value before it does harm

2012-06-07 14:43:55 -07:00

bug.c

bugs, x86: Fix printk levels for panic, softlockups and stack dumps

2012-01-26 21:28:45 +01:00

bust_spinlocks.c

…

check_signature.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

checksum.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

clz_tab.c

lib: Fix multiple definitions of clz_tab

2012-02-02 10:34:23 +11:00

cmdline.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

cordic.c

Docs: wording: functions -> algorithm

2011-10-29 21:20:22 +02:00

cpu_rmap.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

cpu-notifier-error-inject.c

cpu: rewrite cpu-notifier-error-inject module

2012-07-30 17:25:22 -07:00

cpumask.c

lib/cpumask.c: remove __any_online_cpu()

2012-03-28 17:14:35 -07:00

crc7.c

…

crc8.c

lib: crc8: add new library module providing crc8 algorithm

2011-06-03 15:01:06 -04:00

crc16.c

…

crc32.c

lib/crc32.c: fix unused variables warnings

2012-07-30 17:25:17 -07:00

crc32defs.h

crc32: select an algorithm via Kconfig

2012-03-23 16:58:38 -07:00

crc-ccitt.c

…

crc-itu-t.c

…

crc-t10dif.c

…

ctype.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

debug_locks.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

debugobjects.c

debugobjects: Fill_pool() returns void now

2012-04-18 13:38:48 +02:00

dec_and_lock.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

decompress_bunzip2.c

decompress_bunzip2: remove invalid vi modeline

2011-12-06 10:00:05 +01:00

decompress_inflate.c

decompressors: check input size in decompress_inflate.c

2011-01-13 08:03:25 -08:00

decompress_unlzma.c

treewide: Fix comment and string typo 'bufer'

2011-12-06 09:53:40 +01:00

decompress_unlzo.c

unlzo: fix input buffer free

2012-01-12 20:13:13 -08:00

decompress_unxz.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

decompress.c

decompressors: add boot-time XZ support

2011-01-13 08:03:25 -08:00

devres.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

digsig.c

lib/digsig: checks for NULL return value

2012-02-02 00:24:04 +11:00

div64.c

lib: correct link to the original source for div64_u64

2012-06-28 11:51:39 +02:00

dma-debug.c

dma-debug: debugfs_create_bool() takes a u32 pointer

2012-07-02 12:11:40 +02:00

dump_stack.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

dynamic_debug.c

Revert "dynamic_debug: remove unneeded includes"

2012-05-07 16:47:32 -07:00

dynamic_queue_limits.c

bql: Avoid possible inconsistent calculation.

2012-05-31 18:18:17 -04:00

extable.c

…

fault-inject.c

fault-inject: avoid call to random32() if fault injection is disabled

2012-06-20 14:39:36 -07:00

fdt_ro.c

of/lib: Allow scripts/dtc/libfdt to be used from kernel code

2012-07-23 13:54:52 +01:00

fdt_rw.c

of/lib: Allow scripts/dtc/libfdt to be used from kernel code

2012-07-23 13:54:52 +01:00

fdt_strerror.c

of/lib: Allow scripts/dtc/libfdt to be used from kernel code

2012-07-23 13:54:52 +01:00

fdt_sw.c

of/lib: Allow scripts/dtc/libfdt to be used from kernel code

2012-07-23 13:54:52 +01:00

fdt_wip.c

of/lib: Allow scripts/dtc/libfdt to be used from kernel code

2012-07-23 13:54:52 +01:00

fdt.c

of/lib: Allow scripts/dtc/libfdt to be used from kernel code

2012-07-23 13:54:52 +01:00

find_last_bit.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

find_next_bit.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

flex_array.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

flex_proportions.c

lib: Fix possible deadlock in flexible proportion code

2012-06-09 08:37:55 +09:00

gcd.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

gen_crc32table.c

crc32: bolt on crc32c

2012-03-23 16:58:38 -07:00

genalloc.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

halfmd4.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

hexdump.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

hweight.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

idr.c

The following text was taken from the original review request:

2012-03-24 10:24:31 -07:00

inflate.c

MN10300: Don't try and #include <linux/slab.h> in lib/inflate.c from bootloader

2010-08-12 09:51:35 -07:00

int_sqrt.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

iomap_copy.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

iomap.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

iommu-helper.c

The following text was taken from the original review request:

2012-03-24 10:24:31 -07:00

ioremap.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

irq_regs.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

is_single_threaded.c

…

jedec_ddr_data.c

ddr: add LPDDR2 data from JESD209-2

2012-05-02 00:04:06 -07:00

kasprintf.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

Kconfig

Merge branch 'akpm' (Andrew's patch-bomb)

2012-07-30 17:25:34 -07:00

Kconfig.debug

rcu: Add PROVE_RCU_DELAY to provoke difficult races

2012-09-23 07:42:49 -07:00

Kconfig.kgdb

mips,kgdb: kdb low level trap catch and stack trace

2010-05-20 21:04:26 -05:00

Kconfig.kmemcheck

…

klist.c

Revert "driver core: check start node in klist_iter_init_node"

2012-04-19 19:17:30 -07:00

kobject_uevent.c

netlink: add netlink_kernel_cfg parameter to netlink_kernel_create

2012-06-29 16:46:02 -07:00

kobject.c

kobject: fix the uncorrect comment

2012-05-07 16:51:19 -07:00

kstrtox.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

kstrtox.h

lib/kstrtox: common code between kstrto*() and simple_strto*() functions

2011-10-31 17:30:56 -07:00

lcm.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

libcrc32c.c

…

list_debug.c

rcu: Fix broken strings in RCU's source code.

2012-07-06 06:01:49 -07:00

list_sort.c

lib/list_sort: test: check element addresses

2010-10-26 16:52:19 -07:00

llist.c

Disintegrate and delete asm/system.h

2012-03-28 15:58:21 -07:00

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-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

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

lru_cache.c

lru_cache: use correct type in sizeof for allocation

2011-05-25 08:39:52 -07:00

Makefile

Use time based periods to age the writeback proportions,

2012-07-30 22:14:04 -07:00

md5.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

memory-notifier-error-inject.c

memory: memory notifier error injection module

2012-07-30 17:25:22 -07:00

memweight.c

string: introduce memweight()

2012-07-30 17:25:16 -07:00

nlattr.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

notifier-error-inject.c

fault-injection: notifier error injection

2012-07-30 17:25:22 -07:00

notifier-error-inject.h

fault-injection: notifier error injection

2012-07-30 17:25:22 -07:00

parser.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

pci_iomap.c

lib: add NO_GENERIC_PCI_IOPORT_MAP

2012-01-31 23:19:47 +02:00

percpu_counter.c

switch the protection of percpu_counter list to spinlock

2012-07-31 09:28:31 +04:00

plist.c

bug.h: add include of it to various implicit C users

2012-02-29 17:15:08 -05:00

pm-notifier-error-inject.c

PM: PM notifier error injection module

2012-07-30 17:25:22 -07:00

prio_heap.c

…

prio_tree.c

prio_tree: introduce prio_set_parent()

2012-03-23 16:58:36 -07:00

proportions.c

locking, lib/proportions: Annotate prop_local_percpu::lock as raw

2011-09-13 11:11:50 +02:00

pSeries-reconfig-notifier-error-inject.c

powerpc: pSeries reconfig notifier error injection module

2012-07-30 17:25:22 -07:00

radix-tree.c

radix-tree: fix contiguous iterator

2012-06-05 10:46:40 -07:00

random32.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

ratelimit.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

rational.c

lib: Change mail address of Oskar Schirmer

2012-05-17 15:18:37 +02:00

rbtree.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

reciprocal_div.c

sch_red: Adaptative RED AQM

2011-12-08 19:52:43 -05:00

rwsem-spinlock.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

rwsem.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

scatterlist.c

Merge branch 'akpm' (Andrew's patch-bomb)

2012-07-30 17:25:34 -07:00

sha1.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

show_mem.c

arch, mm: filter disallowed nodes from arch specific show_mem functions

2011-05-25 08:39:03 -07:00

smp_processor_id.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

sort.c

…

spinlock_debug.c

spinlock_debug: print offset in addition to symbol name

2012-07-30 17:25:16 -07:00

stmp_device.c

lib: add support for stmp-style devices

2012-04-20 23:27:08 +02:00

string_helpers.c

lib/string_helpers.c: make arrays static

2012-05-29 16:22:32 -07:00

string.c

The following text was taken from the original review request:

2012-03-24 10:24:31 -07:00

strncpy_from_user.c

word-at-a-time: make the interfaces truly generic

2012-05-26 11:33:40 -07:00

strnlen_user.c

lib: Fix generic strnlen_user for 32-bit big-endian machines

2012-05-27 20:59:46 -07:00

swiotlb.c

swiotlb: print physical addresses consistently with other parts of kernel

2012-05-29 16:22:21 -07:00

syscall.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

test-kstrtox.c

lib/test-kstrtox.c: mark const init data with __initconst instead of __initdata

2012-05-29 16:22:32 -07:00

textsearch.c

textsearch: doc - fix spelling in lib/textsearch.c.

2011-01-24 23:33:30 -08:00

timerqueue.c

The following text was taken from the original review request:

2012-03-24 10:24:31 -07:00

ts_bm.c

…

ts_fsm.c

…

ts_kmp.c

…

uuid.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

vsprintf.c

vsprintf: add support of '%*ph[CDN]'

2012-07-30 17:25:14 -07:00