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Ingo Molnar 411f05f123 vsprintf: Turn kptr_restrict off by default 
kptr_restrict has been triggering bugs in apps such as perf, and it also makes
the system less useful by default, so turn it off by default.

This is how we generally handle security features that remove functionality,
such as firewall code or SELinux - they have to be configured and activated
from user-space.

Distributions can turn kptr_restrict on again via this line in
/etc/sysctrl.conf:

kernel.kptr_restrict = 1

( Also mark the variable __read_mostly while at it, as it's typically modified
  only once per bootup, or not at all. )

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-12 15:18:16 -07:00
..
lzo
lib: add support for LZO-compressed kernels
2010-01-11 09:34:04 -08:00
raid6
Move .gitignore from drivers/md to lib/raid6
2010-08-30 17:35:52 +10:00
reed_solomon
…
xz
XZ decompressor: Fix decoding of empty LZMA2 streams
2011-05-02 08:46:12 -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
tree-wide: convert open calls to remove spaces to skip_spaces() lib function
2009-12-15 08:53:32 -08:00
atomic64_test.c
ARM: 6213/1: atomic64_test: add ARM as supported architecture
2010-07-27 10:43:46 +01:00
atomic64.c
lib: Fix atomic64_add_unless return value convention
2010-03-01 11:38:46 -08:00
audit.c
…
average.c
lib: Improve EWMA efficiency by using bitshifts
2010-12-06 15:58:43 -05:00
bcd.c
…
bch.c
lib: add shared BCH ECC library
2011-03-11 14:25:50 +00:00
bitmap.c
Fix common misspellings
2011-03-31 11:26:23 -03:00
bitrev.c
…
btree.c
Fix common misspellings
2011-03-31 11:26:23 -03:00
bug.c
modules: Fix module_bug_list list corruption race
2010-10-05 11:29:27 -07:00
bust_spinlocks.c
oops handling: ensure that any oops is flushed to the mtdoops console
2009-01-06 15:59:11 -08:00
check_signature.c
…
checksum.c
lib/checksum: fix one more thinko
2009-11-03 16:06:53 +01:00
cmdline.c
…
cpu_rmap.c
lib: cpu_rmap: CPU affinity reverse-mapping
2011-01-24 14:51:56 -08:00
cpu-notifier-error-inject.c
fault-injection: add CPU notifier error injection module
2010-05-27 09:12:48 -07:00
cpumask.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
crc7.c
…
crc16.c
…
crc32.c
revert "crc32: use __BYTE_ORDER macro for endian detection"
2010-05-26 08:19:23 -07:00
crc32defs.h
…
crc-ccitt.c
…
crc-itu-t.c
…
crc-t10dif.c
…
ctype.c
ctype: constify read-only _ctype string
2009-12-15 08:53:32 -08:00
debug_locks.c
Revert "debug_locks: set oops_in_progress if we will log messages."
2010-11-29 15:18:28 -08:00
debugobjects.c
debugobjects: Add hint for better object identification
2011-03-08 16:10:38 +01:00
dec_and_lock.c
atomic: only take lock when the counter drops to zero on UP as well
2009-06-16 19:47:47 -07:00
decompress_bunzip2.c
Decompressors: include <linux/slab.h> in <linux/decompress/mm.h>
2011-01-13 08:03:23 -08:00
decompress_inflate.c
decompressors: check input size in decompress_inflate.c
2011-01-13 08:03:25 -08:00
decompress_unlzma.c
Decompressors: validate match distance in decompress_unlzma.c
2011-01-13 08:03:24 -08:00
decompress_unlzo.c
Decompressors: fix callback-to-callback mode in decompress_unlzo.c
2011-01-13 08:03:24 -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/devres.c: fix comment typo
2010-07-11 22:16:32 +02:00
div64.c
div64_u64(): improve precision on 32bit platforms
2010-10-26 16:52:19 -07:00
dma-debug.c
llseek: automatically add .llseek fop
2010-10-15 15:53:27 +02:00
dump_stack.c
…
dynamic_debug.c
dynamic_debug: add #include <linux/sched.h>
2011-02-03 15:59:58 -08:00
extable.c
module: trim exception table on init free.
2009-06-12 21:47:04 +09:30
fault-inject.c
headers: remove sched.h from interrupt.h
2009-10-11 11:20:58 -07:00
find_last_bit.c
…
find_next_bit.c
bitops: introduce CONFIG_GENERIC_FIND_BIT_LE
2011-03-23 19:46:14 -07:00
flex_array.c
flex_arrays: allow zero length flex arrays
2011-04-28 16:12:54 -04:00
gcd.c
lib: add lib/gcd.c
2009-06-18 13:04:05 -07:00
gen_crc32table.c
crc32: major optimization
2010-05-25 08:07:06 -07:00
genalloc.c
genalloc: fix allocation from end of pool
2010-06-29 15:29:30 -07:00
halfmd4.c
…
hexdump.c
include/linux/printk.h lib/hexdump.c: neatening and add CONFIG_PRINTK guard
2011-01-13 08:03:10 -08:00
hweight.c
x86: Add optimized popcnt variants
2010-04-06 15:52:11 -07:00
idr.c
docbook: add idr/ida to kernel-api docbook
2010-10-26 17:40:56 -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
…
iomap_copy.c
…
iomap.c
…
iommu-helper.c
iommu: inline iommu_num_pages
2010-08-09 20:45:05 -07:00
ioremap.c
ACPI, APEI, Generic Hardware Error Source POLL/IRQ/NMI notification type support
2011-01-12 03:06:19 -05:00
irq_regs.c
…
is_single_threaded.c
kernel: is_current_single_threaded: don't use ->mmap_sem
2009-07-17 09:11:31 +10:00
kasprintf.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
Kconfig
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus-1
2011-03-25 17:41:20 +02:00
Kconfig.debug
kemleak-test: build as module only
2011-04-04 17:51:47 -07:00
Kconfig.kgdb
mips,kgdb: kdb low level trap catch and stack trace
2010-05-20 21:04:26 -05:00
Kconfig.kmemcheck
kmemcheck: depend on HAVE_ARCH_KMEMCHECK
2009-07-01 22:28:44 +02:00
klist.c
…
kobject_uevent.c
kobject_uevent: fix typo in comments
2010-08-23 18:12:46 -07:00
kobject.c
kobject: Introduce kset_find_obj_hinted.
2010-10-22 10:16:44 -07:00
kref.c
kref: Add a kref_sub function
2010-11-22 13:25:13 +10:00
kstrtox.c
kstrtox: simpler code in _kstrtoull()
2011-04-14 16:06:55 -07:00
lcm.c
block: Fix overrun in lcm() and move it to lib
2010-03-15 12:47:59 +01:00
libcrc32c.c
…
list_debug.c
Expand CONFIG_DEBUG_LIST to several other list operations
2011-02-18 11:32:28 -08:00
list_sort.c
lib/list_sort: test: check element addresses
2010-10-26 16:52:19 -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
locking: rename trace_softirq_[enter|exit] => lockdep_softirq_[enter|exit]
2009-03-13 01:32:36 +01:00
lru_cache.c
The DRBD driver
2009-10-01 21:17:49 +02:00
Makefile
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus-1
2011-03-25 17:41:20 +02:00
nlattr.c
net: fix nla_policy_len to actually _iterate_ over the policy
2011-02-28 12:38:25 -08:00
parser.c
Fix common misspellings
2011-03-31 11:26:23 -03:00
percpu_counter.c
percpucounter: Optimize __percpu_counter_add a bit through the use of this_cpu() options.
2010-12-17 15:07:18 +01:00
plist.c
plist: Add priority list test
2011-03-11 15:14:48 -05:00
prio_heap.c
lib: fix sparse shadowed variable warning
2009-01-06 15:59:11 -08:00
prio_tree.c
…
proportions.c
Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2009-01-06 17:10:04 -08:00
radix-tree.c
radix_tree: radix_tree_gang_lookup_tag_slot() may never return
2011-01-26 10:50:04 +10:00
random32.c
Merge branch 'master' into for-next
2010-06-16 18:08:13 +02:00
ratelimit.c
ratelimit: fix the return value when __ratelimit() fails to acquire the lock
2010-04-07 08:38:04 -07:00
rational.c
lib/rational.c needs module.h
2010-01-11 09:34:05 -08:00
rbtree.c
Export the augmented rbtree helper functions
2011-01-28 12:16:59 +10:00
reciprocal_div.c
…
rwsem-spinlock.c
rwsem generic spinlock: use IRQ save/restore spinlocks
2010-04-07 16:15:05 -07:00
rwsem.c
rwsem: Remove redundant asmregparm annotation
2011-01-27 12:30:40 +01:00
scatterlist.c
scatterlist: prevent invalid free when alloc fails
2010-08-30 19:55:09 +02:00
sha1.c
…
show_mem.c
lib, arch: add filter argument to show_mem and fix private implementations
2011-03-24 17:49:37 -07:00
smp_processor_id.c
cpumask: convert lib/smp_processor_id to new cpumask ops
2009-01-30 15:47:34 +01:00
sort.c
generic swap(): lib/sort.c: rename swap to swap_func
2009-01-08 08:31:14 -08:00
spinlock_debug.c
locking: Further name space cleanups
2009-12-14 23:55:33 +01:00
string_helpers.c
…
string.c
lib/string.c: simplify strnstr()
2010-03-06 11:26:35 -08:00
swiotlb.c
swiotlb: fix wrong panic
2011-02-25 15:07:36 -08:00
syscall.c
…
test-kstrtox.c
kstrtox: fix compile warnings in test
2011-04-14 16:06:54 -07:00
textsearch.c
textsearch: doc - fix spelling in lib/textsearch.c.
2011-01-24 23:33:30 -08:00
timerqueue.c
Fix common misspellings
2011-03-31 11:26:23 -03:00
ts_bm.c
…
ts_fsm.c
…
ts_kmp.c
…
uuid.c
Unified UUID/GUID definition
2010-05-19 22:40:47 -04:00
vsprintf.c
vsprintf: Turn kptr_restrict off by default
2011-05-12 15:18:16 -07:00