Bob Pearson 3863ef31dc crc32: simplify unit test code ... Replace the unit test provided in crc32.c, which doesn't have a makefile and doesn't compile with current headers, with a simpler self test routine that also gives a measure of performance and runs at module init time. The self test option can be enabled through a configuration option CONFIG_CRC32_SELFTEST. The test stresses the pre and post loops and is thus not very realistic since actual uses will likely have addresses and lengths that are at least 4 byte aligned. However, the main loop is long enough so that the performance is dominated by that loop. The expected values for crc32_le and crc32_be were generated with the original version of crc32.c using CRC_BITS_LE = 8 and CRC_BITS_BE = 8. These values were then used to check all the values of the BITS parameters in both the original and new versions. The performance results show some variability from run to run in spite of attempts to both warm the cache and reduce the amount of OS noise by limiting interrutps during the test. To get comparable results and to analyse options wrt performance the best time reported over a small sample of runs has been taken. [djwong@us.ibm.com: Minor changelog tweaks] Signed-off-by: Bob Pearson <rpearson@systemfabricworks.com> Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2012-03-23 16:58:37 -07:00
..
lzo
mpi	lib: Fix 32-bit sparc udiv_qrnnd() definition in mpilib's longlong.h	2012-02-02 10:34:25 +11:00
raid6	md: Add in export.h for files using EXPORT_SYMBOL	2011-10-31 19:31:19 -04:00
reed_solomon
xz	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
.gitignore
argv_split.c
atomic64.c	lib: atomic64: Change the type of local lock to raw_spinlock_t	2011-09-14 13:14:11 +02:00
atomic64_test.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
audit.c	audit: support the "standard" <asm-generic/unistd.h>	2011-05-04 14:41:28 -04:00
average.c
bcd.c
bch.c	lib: add shared BCH ECC library	2011-03-11 14:25:50 +00:00
bitmap.c	lib/bitmap.c: quiet sparse noise about address space	2011-10-31 17:30:56 -07:00
bitrev.c
bsearch.c	lib: Add generic binary search function to the kernel.	2011-05-19 16:55:27 +09:30
btree.c	btree: export btree_get_prev() so modules can use btree_for_each	2012-01-10 16:30:49 -08:00
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
checksum.c	lib/checksum.c: optimize do_csum a bit	2011-07-07 04:52:24 -07:00
clz_tab.c	lib: Fix multiple definitions of clz_tab	2012-02-02 10:34:23 +11:00
cmdline.c
cordic.c	Docs: wording: functions -> algorithm	2011-10-29 21:20:22 +02:00
cpu-notifier-error-inject.c
cpu_rmap.c	lib: cpu_rmap: CPU affinity reverse-mapping	2011-01-24 14:51:56 -08:00
cpumask.c	cpumask: alloc_cpumask_var() use NUMA_NO_NODE	2011-07-26 16:49:44 -07:00
crc-ccitt.c
crc-itu-t.c
crc-t10dif.c
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	crc32: simplify unit test code	2012-03-23 16:58:37 -07:00
crc32defs.h	crc32: remove two instances of trailing whitespaces	2012-03-23 16:58:37 -07:00
ctype.c
debug_locks.c
debugobjects.c	debugobjects: Fix selftest for static warnings	2012-03-05 15:49:43 -08:00
dec_and_lock.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
decompress.c
decompress_bunzip2.c	decompress_bunzip2: remove invalid vi modeline	2011-12-06 10:00:05 +01:00
decompress_inflate.c
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
devres.c	Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci	2012-01-11 18:50:26 -08:00
digsig.c	lib/digsig: checks for NULL return value	2012-02-02 00:24:04 +11:00
div64.c
dma-debug.c	Remove useless get_driver()/put_driver() calls	2012-01-24 16:00:35 -08:00
dump_stack.c
dynamic_debug.c	dynamic_debug: process multiple debug-queries on a line	2012-01-24 12:50:36 -08:00
dynamic_queue_limits.c	dql: Fix undefined jiffies	2012-03-11 19:59:43 -07:00
extable.c
fault-inject.c	switch debugfs to umode_t	2012-01-03 22:54:56 -05:00
find_last_bit.c	bitops: add #ifndef for each of find bitops	2011-05-26 17:12:38 -07:00
find_next_bit.c	arch: remove CONFIG_GENERIC_FIND_{NEXT_BIT,BIT_LE,LAST_BIT}	2011-05-26 17:12:38 -07:00
flex_array.c	flex_array: avoid divisions when accessing elements	2011-05-26 17:12:33 -07:00
gcd.c
gen_crc32table.c
genalloc.c	lib, Make gen_pool memory allocator lockless	2011-08-03 11:15:57 -04:00
halfmd4.c
hexdump.c	lib: add error checking to hex2bin	2011-09-20 23:24:44 -04:00
hweight.c
idr.c	idr: make idr_get_next() good for rcu_read_lock()	2012-03-21 17:55:01 -07:00
inflate.c
int_sqrt.c
iomap.c	lib: add GENERIC_PCI_IOMAP	2011-11-28 21:12:42 +02:00
iomap_copy.c
iommu-helper.c
ioremap.c
irq_regs.c
is_single_threaded.c
kasprintf.c
Kconfig	crc32: simplify unit test code	2012-03-23 16:58:37 -07:00
Kconfig.debug	nmi watchdog: do not use cpp symbol in Kconfig	2012-03-23 16:58:31 -07:00
Kconfig.kgdb
Kconfig.kmemcheck
klist.c
kobject.c	kobject: remove kset_find_obj_hinted()	2011-12-21 15:13:54 -08:00
kobject_uevent.c	uevent: send events in correct order according to seqnum (v3)	2012-03-08 12:56:40 -08:00
kstrtox.c	Reduce the number of expensive division instructions done by _parse_integer()	2012-02-09 10:09:30 -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/lcm.c: quiet sparse noise	2011-07-25 20:57:15 -07:00
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
llist.c	llist: Remove cpu_relax() usage in cmpxchg loops	2011-10-04 12:44:03 +02:00
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	rcu: Fix unpaired rcu_irq_enter() from locking selftests	2011-05-26 09:42:19 -07:00
lru_cache.c	lru_cache: use correct type in sizeof for allocation	2011-05-25 08:39:52 -07:00
Makefile	lib: Fix multiple definitions of clz_tab	2012-02-02 10:34:23 +11:00
md5.c	crypto: Move md5_transform to lib/md5.c	2011-08-06 18:32:45 -07:00
nlattr.c	netlink: validate NLA_MSECS length	2011-11-04 17:47:34 -04:00
parser.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
pci_iomap.c	lib: add NO_GENERIC_PCI_IOPORT_MAP	2012-01-31 23:19:47 +02:00
percpu_counter.c	lib/percpu_counter.c: enclose hotplug only variables in hotplug ifdef	2011-10-31 17:30:56 -07:00
plist.c	plist: Remove the need to supply locks to plist heads	2011-07-08 14:02:53 +02:00
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
radix-tree.c	radix_tree: take radix_tree_path off stack	2012-01-12 20:13:12 -08:00
random32.c
ratelimit.c	locking, printk: Annotate logbuf_lock as raw	2011-09-13 11:11:54 +02:00
rational.c
rbtree.c	Export the augmented rbtree helper functions	2011-01-28 12:16:59 +10:00
reciprocal_div.c	sch_red: Adaptative RED AQM	2011-12-08 19:52:43 -05:00
rwsem-spinlock.c	locking, rwsem: Annotate inner lock as raw	2011-09-13 11:11:59 +02:00
rwsem.c	locking, rwsem: Annotate inner lock as raw	2011-09-13 11:11:59 +02:00
scatterlist.c	lib: remove the second argument of k[un]map_atomic()	2012-03-20 21:48:27 +08:00
sha1.c	lib/sha1.c: quiet sparse noise about symbol not declared	2011-09-13 16:09:41 -07:00
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	sched: Wrap scheduler p->cpus_allowed access	2011-10-06 12:46:56 +02:00
sort.c
spinlock_debug.c	lib/spinlock_debug.c: print owner on spinlock lockup	2011-10-31 17:30:56 -07:00
string.c	string: memchr_inv() speed improvements	2012-03-23 16:58:35 -07:00
string_helpers.c
swiotlb.c	lib: remove the second argument of k[un]map_atomic()	2012-03-20 21:48:27 +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
vsprintf.c	vsprintf: make %pV handling compatible with kasprintf()	2012-03-06 08:22:26 -08:00