Hannes Frederic Sowa e5a2c89995 fast_hash: avoid indirect function calls ...

By default the arch_fast_hash hashing function pointers are initialized
to jhash(2). If during boot-up a CPU with SSE4.2 is detected they get
updated to the CRC32 ones. This dispatching scheme incurs a function
pointer lookup and indirect call for every hashing operation.

rhashtable as a user of arch_fast_hash e.g. stores pointers to hashing
functions in its structure, too, causing two indirect branches per
hashing operation.

Using alternative_call we can get away with one of those indirect branches.

Acked-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

2014-11-05 22:01:21 -05:00

..

fonts

fonts: Add 6x10 font

2014-10-09 11:35:48 +03:00

lz4

lz4: add overrun checks to lz4_uncompress_unknownoutputsize()

2014-07-03 16:12:04 -07:00

lzo

lzo: check for length overrun in variable length encoding.

2014-09-28 11:08:01 +02:00

mpi

MPILIB: add module description and license

2013-09-25 17:17:01 +01:00

raid6

lib/raid6: Add log level to printks

2014-10-14 13:08:29 +11:00

reed_solomon

…

xz

lib/xz: enable all filters by default in Kconfig

2014-06-04 16:54:18 -07:00

zlib_deflate

zlib: clean up some dead code

2014-08-06 18:01:24 -07:00

zlib_inflate

zlib: clean up some dead code

2014-08-06 18:01:24 -07:00

.gitignore

X.509: Implement simple static OID registry

2012-10-08 13:50:18 +10:30

argv_split.c

argv_split(): teach it to handle mutable strings

2013-04-29 18:28:19 -07:00

asn1_decoder.c

lib/asn1_decoder.c: kernel-doc warning fix

2014-06-04 16:54:19 -07:00

assoc_array.c

KEYS: Fix termination condition in assoc array garbage collection

2014-09-12 22:34:31 +10:00

atomic64_test.c

lib/atomic64_test.c: convert printk(KERN_INFO to pr_info

2014-06-04 16:54:19 -07:00

atomic64.c

locking,arch: Rewrite generic atomic support

2014-08-14 12:48:14 +02:00

audit.c

audit: Add generic compat syscall support

2014-03-20 10:11:35 -04:00

average.c

lib: Ensure EWMA does not store wrong intermediate values

2014-01-16 23:46:06 -08:00

bcd.c

usb/core: use bin2bcd() for bcdDevice in RH

2012-09-10 11:13:16 -07:00

bch.c

lib: add shared BCH ECC library

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

bitmap.c

lib/bitmap.c: fix undefined shift in __bitmap_shift_{left|right}()

2014-10-29 16:33:14 -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

lib/btree.c: fix leak of whole btree nodes

2014-06-04 16:54:18 -07:00

bug.c

lib/bug.c: convert printk to pr_foo()

2014-06-04 16:54:19 -07:00

build_OID_registry

X.509: do not emit any informational output

2013-06-19 17:54:06 +02:00

bust_spinlocks.c

printk: Provide a wake_up_klogd() off-case

2013-03-22 16:41:20 -07:00

check_signature.c

lib: reduce the use of module.h wherever possible

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

checksum.c

asm-generic headers: Allow yet more arch overrides in checksum.h

2013-02-11 20:00:33 +05:30

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

lib: Fix multiple definitions of clz_tab

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

cmdline.c

lib: Add a generic cmdline parse function parse_option_str

2014-10-03 18:40:58 +01:00

compat_audit.c

audit: Add generic compat syscall support

2014-03-20 10:11:35 -04:00

cordic.c

Docs: wording: functions -> algorithm

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

cpu_rmap.c

Remove GENERIC_HARDIRQ config option

2013-09-13 15:09:52 +02:00

cpu-notifier-error-inject.c

cpu: rewrite cpu-notifier-error-inject module

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

cpumask.c

lib/cpumask: cpumask_set_cpu_local_first to use all cores when numa node is not defined

2014-07-02 18:29:23 -07:00

crc7.c

lib/crc7: Shift crc7() output left 1 bit

2014-05-16 14:26:52 -04:00

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: Add some additional __pure annotations

2014-06-25 16:04:00 -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

crypto: crct10dif - Add fallback for broken initrds

2013-09-12 15:31:34 +10:00

ctype.c

lib: reduce the use of module.h wherever possible

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

debug_locks.c

mutex: Add support for wound/wait style locks

2013-06-26 12:10:56 +02:00

debugobjects.c

lib/debugobjects.c: convert printk(KERN_DEBUG to pr_debug

2014-06-04 16:53:53 -07:00

dec_and_lock.c

lib: reduce the use of module.h wherever possible

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

decompress_bunzip2.c

initramfs: support initramfs that is bigger than 2GiB

2014-08-08 15:57:26 -07:00

decompress_inflate.c

initramfs: support initramfs that is bigger than 2GiB

2014-08-08 15:57:26 -07:00

decompress_unlz4.c

initramfs: support initramfs that is bigger than 2GiB

2014-08-08 15:57:26 -07:00

decompress_unlzma.c

initramfs: support initramfs that is bigger than 2GiB

2014-08-08 15:57:26 -07:00

decompress_unlzo.c

initramfs: support initramfs that is bigger than 2GiB

2014-08-08 15:57:26 -07:00

decompress_unxz.c

initramfs: support initramfs that is bigger than 2GiB

2014-08-08 15:57:26 -07:00

decompress.c

initramfs: support initramfs that is bigger than 2GiB

2014-08-08 15:57:26 -07:00

devres.c

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2014-08-05 17:46:42 -07:00

digsig.c

lib/digsig.c: kernel-doc warning fixes

2014-06-04 16:54:19 -07:00

div64.c

math64: New separate div64_u64_rem helper

2013-08-23 09:02:14 -04:00

dma-debug.c

dma-debug: modify check_for_stack output

2014-09-02 14:12:13 +02:00

dump_stack.c

asmlinkage: Add explicit __visible to drivers/*, lib/*, kernel/*

2014-05-05 16:07:46 -07:00

dynamic_debug.c

lib/dynamic_debug.c: use seq_open_private() instead of seq_open()

2014-10-14 02:18:14 +02:00

dynamic_queue_limits.c

bql: Avoid possible inconsistent calculation.

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

earlycpio.c

earlycpio.c: Fix the confusing comment of find_cpio_data().

2013-08-14 23:24:01 +02:00

extable.c

…

fault-inject.c

debugfs: add get/set for atomic types

2013-06-03 13:55:01 -07:00

fdt_empty_tree.c

lib: add fdt_empty_tree.c

2014-04-30 19:49:37 +01:00

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

reciprocal_divide: update/correction of the algorithm

2014-01-21 23:17:20 -08:00

flex_proportions.c

proportions: add @gfp to init functions

2014-09-08 09:51:30 +09:00

gcd.c

lib/gcd.c: prevent possible div by 0

2012-10-06 03:04:57 +09:00

gen_crc32table.c

sections: fix const sections for crc32 table

2012-10-06 03:04:46 +09:00

genalloc.c

lib/genalloc.c: add genpool range check function

2014-10-09 22:25:52 -04:00

glob.c

lib/glob.c: add CONFIG_GLOB_SELFTEST

2014-08-06 18:01:25 -07:00

halfmd4.c

lib: reduce the use of module.h wherever possible

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

hexdump.c

Provide a binary to hex conversion function

2014-09-16 17:36:01 +01:00

hweight.c

Make ARCH_HAS_FAST_MULTIPLIER a real config variable

2014-09-13 11:14:53 -07:00

idr.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2014-10-07 21:16:26 -04:00

inflate.c

…

int_sqrt.c

lib/int_sqrt.c: optimize square root algorithm

2013-04-29 18:28:19 -07:00

interval_tree_test.c

lib: Export interval_tree

2014-05-05 09:09:14 +02:00

interval_tree.c

lib: Export interval_tree

2014-05-05 09:09:14 +02:00

iomap_copy.c

lib: reduce the use of module.h wherever possible

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

iomap.c

Kconfig: rename HAS_IOPORT to HAS_IOPORT_MAP

2014-04-07 16:36:11 -07:00

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

iovec.c

iovec: make sure the caller actually wants anything in memcpy_fromiovecend

2014-08-02 15:25:21 -07:00

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/kasprintf.c: use kmalloc_track_caller() to get accurate traces for kvasprintf

2012-10-11 08:50:15 +09:00

Kconfig

Make ARCH_HAS_FAST_MULTIPLIER a real config variable

2014-09-13 11:14:53 -07:00

Kconfig.debug

lib: rename TEST_MODULE to TEST_LKM

2014-10-14 02:18:14 +02:00

Kconfig.kgdb

treewide: Fix typo in printk

2013-06-18 13:48:45 +02:00

Kconfig.kmemcheck

…

kfifo.c

kfifo: use BUG_ON

2014-08-08 15:57:25 -07:00

klist.c

klist: use same naming scheme as hlist for klist_add_after()

2014-08-06 18:01:24 -07:00

kobject_uevent.c

kobject: Make support for uevent_helper optional.

2014-04-25 12:00:49 -07:00

kobject.c

sysfs, kobject: add sysfs wrapper for kernfs_enable_ns()

2014-02-07 16:08:57 -08:00

kstrtox.c

lib/kstrtox.c: remove redundant cleanup

2014-01-23 16:36:57 -08:00

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

crypto: LLVMLinux: Remove VLAIS usage from libcrc32c.c

2014-10-14 10:51:23 +02:00

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.c: convert to pr_foo

2014-08-06 18:01:25 -07:00

llist.c

llists-move-llist_reverse_order-from-raid5-to-llistc-fix

2013-11-15 09:32:22 +09:00

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/lockdep: Revert qrwlock recusive stuff

2014-10-03 06:09:30 +02:00

lockref.c

arch, locking: Ciao arch_mutex_cpu_relax()

2014-07-17 12:32:47 +02:00

lru_cache.c

drbd: debugfs: add per volume oldest_requests

2014-07-10 18:35:19 +02:00

Makefile

fast_hash: avoid indirect function calls

2014-11-05 22:01:21 -05:00

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

net_utils.c

mac_pton: Use bool not int return

2014-06-25 17:45:43 -07:00

nlattr.c

Merge branch 'next' (accumulated 3.16 merge window patches) into master

2014-06-08 11:31:16 -07:00

notifier-error-inject.c

mode_t, whack-a-mole at 11...

2013-04-09 14:13:05 -04:00

notifier-error-inject.h

fault-injection: notifier error injection

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

of-reconfig-notifier-error-inject.c

powerpc+of: Rename and fix OF reconfig notifier error inject module

2012-12-14 10:32:52 +11:00

oid_registry.c

Give the OID registry file module info to avoid kernel tainting

2013-05-05 14:38:00 -07:00

parser.c

lib/parser.c: put EXPORT_SYMBOLs in the conventional place

2014-01-23 16:36:55 -08:00

pci_iomap.c

lib: add NO_GENERIC_PCI_IOPORT_MAP

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

percpu_counter.c

percpu_counter: add @gfp to percpu_counter_init()

2014-09-08 09:51:29 +09:00

percpu_ida.c

Merge branch 'for-linus' of git://git.kernel.dk/linux-block

2014-02-14 10:45:18 -08:00

percpu_test.c

percpu: add test module for various percpu operations

2013-11-13 12:09:11 +09:00

percpu-refcount.c

percpu_ref: make INIT_ATOMIC and switch_to_atomic() sticky

2014-09-24 13:31:50 -04:00

plist.c

lib/plist.c: replace pr_debug with printk in plist_test()

2014-06-04 16:54:18 -07:00

pm-notifier-error-inject.c

PM: PM notifier error injection module

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

proportions.c

proportions: add @gfp to init functions

2014-09-08 09:51:30 +09:00

radix-tree.c

lib/radix-tree.c: update the kmemleak stack trace for radix tree allocations

2014-06-06 16:08:17 -07:00

random32.c

random32: improvements to prandom_bytes

2014-08-24 18:36:01 -07:00

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_test.c

rbtree/test: test rbtree_postorder_for_each_entry_safe()

2014-01-23 16:37:03 -08:00

rbtree.c

lib/rbtree.c: fix typo in comment of __rb_insert()

2014-08-08 15:57:24 -07:00

reciprocal_div.c

reciprocal_divide: update/correction of the algorithm

2014-01-21 23:17:20 -08:00

rhashtable.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

2014-10-08 21:40:54 -04:00

scatterlist.c

lib/scatterlist: fix memory leak with scsi-mq

2014-10-28 10:27:10 -06:00

sha1.c

lib: reduce the use of module.h wherever possible

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

show_mem.c

lib/show_mem.c: show num_poisoned_pages when oom

2014-01-21 16:19:48 -08:00

smp_processor_id.c

percpu: add preemption checks to __this_cpu ops

2014-04-07 16:36:14 -07:00

sort.c

…

stmp_device.c

lib: add support for stmp-style devices

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

string_helpers.c

lib / string_helpers: introduce string_escape_mem()

2014-10-14 02:18:26 +02:00

string.c

This adds a memzero_explicit() call which is guaranteed not to be

2014-10-24 12:33:32 -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: don't assume PA 0 is invalid

2014-06-20 16:04:32 -04:00

syscall.c

lib/syscall.c: unexport task_current_syscall()

2014-04-03 16:21:06 -07:00

test_bpf.c

test: bpf: add a testcase reduced from nmap

2014-10-30 15:44:37 -04:00

test_firmware.c

test: add firmware_class loader test

2014-07-17 18:44:19 -07:00

test_module.c

test: add minimal module for verification testing

2014-01-23 16:36:57 -08:00

test_user_copy.c

test: check copy_to/from_user boundary validation

2014-01-23 16:36:57 -08:00

test-kstrtox.c

lib/test-kstrtox.c: use ARRAY_SIZE instead of sizeof/sizeof[0]

2014-08-06 18:01:25 -07:00

test-string_helpers.c

lib / string_helpers: introduce string_escape_mem()

2014-10-14 02:18:26 +02:00

textsearch.c

lib/textsearch.c: remove textsearch_put reference from comments

2014-10-14 02:18:14 +02:00

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

…

ucs2_string.c

Move utf16 functions to kernel core and rename

2013-04-15 21:23:03 +01:00

usercopy.c

Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS

2013-04-30 17:04:09 -07:00

uuid.c

uuid: use prandom_bytes()

2013-04-29 18:28:42 -07:00

vsprintf.c

lib/vsprintf: add %*pE[achnops] format specifier

2014-10-14 02:18:26 +02:00