Dave Chinner 80188b0d77 percpu_counter: batch size aware __percpu_counter_compare() ... XFS uses non-stanard batch sizes for avoiding frequent global counter updates on it's allocated inode counters, as they increment or decrement in batches of 64 inodes. Hence the standard percpu counter batch of 32 means that the counter is effectively a global counter. Currently Xfs uses a batch size of 128 so that it doesn't take the global lock on every single modification. However, Xfs also needs to compare accurately against zero, which means we need to use percpu_counter_compare(), and that has a hard-coded batch size of 32, and hence will spuriously fail to detect when it is supposed to use precise comparisons and hence the accounting goes wrong. Add __percpu_counter_compare() to take a custom batch size so we can use it sanely in XFS and factor percpu_counter_compare() to use it. Signed-off-by: Dave Chinner <dchinner@redhat.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Dave Chinner <david@fromorbit.com>		2015-05-29 07:39:34 +10:00
..
fonts
lz4	lib/lz4: Pull out constant tables	2015-03-25 15:04:57 +01:00
lzo
mpi
raid6	md/raid6 algorithms: xor_syndrome() for SSE2	2015-04-22 08:00:42 +10:00
reed_solomon
xz
zlib_deflate
zlib_inflate
.gitignore
argv_split.c
asn1_decoder.c
assoc_array.c
atomic64_test.c
atomic64.c
audit.c
average.c
bcd.c
bch.c
bitmap.c	lib/bitmap.c: bitmap_[empty,full]: remove code duplication	2015-04-17 09:03:56 -04:00
bitrev.c
bsearch.c
btree.c
bug.c
build_OID_registry
bust_spinlocks.c
check_signature.c
checksum.c
clz_ctz.c
clz_tab.c
cmdline.c
compat_audit.c
cordic.c
cpu_rmap.c
cpu-notifier-error-inject.c
cpumask.c	This is the final removal (after several years!) of the obsolete cpus_*	2015-04-20 10:19:03 -07:00
crc7.c
crc8.c
crc16.c
crc32.c
crc32defs.h
crc-ccitt.c
crc-itu-t.c
crc-t10dif.c
ctype.c
debug_locks.c
debugobjects.c
dec_and_lock.c
decompress_bunzip2.c
decompress_inflate.c
decompress_unlz4.c
decompress_unlzma.c
decompress_unlzo.c
decompress_unxz.c
decompress.c
devres.c	lib: devres: add a helper function for ioremap_wc	2015-03-16 21:11:32 +01:00
digsig.c
div64.c	lib: correct link to the original source for div64_u64	2015-03-06 23:19:27 +01:00
dma-debug.c	lib/dma-debug: fix bucket_find_contain()	2015-04-17 09:03:54 -04:00
dump_stack.c
dynamic_debug.c
dynamic_queue_limits.c	lib/dynamic_queue_limits.c: simplify includes	2015-02-12 18:54:15 -08:00
earlycpio.c
extable.c
fault-inject.c
fdt_empty_tree.c
fdt_ro.c
fdt_rw.c
fdt_strerror.c
fdt_sw.c
fdt_wip.c
fdt.c
find_bit.c	lib: rename lib/find_next_bit.c to lib/find_bit.c	2015-04-17 09:03:54 -04:00
find_last_bit.c	lib: find_*_bit reimplementation	2015-04-17 09:03:53 -04:00
flex_array.c
flex_proportions.c
gcd.c
gen_crc32table.c	lib: crc32: constify crc32 lookup table	2015-02-13 21:21:35 -08:00
genalloc.c	lib/genalloc.c: check result of devres_alloc()	2015-02-13 21:21:36 -08:00
glob.c
halfmd4.c	lib/halfmd4.c: simplify includes	2015-02-12 18:54:15 -08:00
hexdump.c	hexdump: make it return number of bytes placed in buffer	2015-02-12 18:54:15 -08:00
hweight.c
idr.c	lib/idr.c: remove redundant include	2015-02-12 18:54:15 -08:00
inflate.c
int_sqrt.c
interval_tree_test.c
interval_tree.c	lib/interval_tree.c: simplify includes	2015-02-12 18:54:15 -08:00
iomap_copy.c
iomap.c
iommu-common.c	iommu-common: rename iommu_pool_hash to iommu_hash_common	2015-04-20 14:09:55 -04:00
iommu-helper.c
ioremap.c	x86, mm: support huge KVA mappings on x86	2015-04-14 16:49:04 -07:00
iov_iter.c	Merge branch 'iov_iter' into for-next	2015-04-11 22:26:51 -04:00
irq_regs.c
is_single_threaded.c
jedec_ddr_data.c
kasprintf.c
Kconfig	This is the final removal (after several years!) of the obsolete cpus_*	2015-04-20 10:19:03 -07:00
Kconfig.debug	Merge branch 'akpm' (patches from Andrew)	2015-04-14 16:49:17 -07:00
Kconfig.kasan	kasan: enable instrumentation of global variables	2015-02-13 21:21:42 -08:00
Kconfig.kgdb
Kconfig.kmemcheck
kfifo.c
klist.c
kobject_uevent.c	lib/kobject_uevent.c: remove redundant include	2015-02-12 18:54:15 -08:00
kobject.c	kobject: WARN as tip when call kobject_get() to a kobject not initialized	2015-03-25 15:26:49 +01:00
kstrtox.c
kstrtox.h
lcm.c	block: fix blk_stack_limits() regression due to lcm() change	2015-03-31 09:45:50 -06:00
libcrc32c.c
list_debug.c
list_sort.c	lib/list_sort.c: rearrange includes	2015-02-12 18:54:15 -08:00
llist.c	lib/llist.c: remove redundant include	2015-02-12 18:54:15 -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-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
lockref.c	locking: Remove ACCESS_ONCE() usage	2015-02-24 08:44:16 +01:00
lru_cache.c	lru_cache: remove use of seq_printf return value	2015-04-15 16:35:25 -07:00
Makefile	Break up monolithic iommu table/lock into finer graularity pools and lock	2015-04-18 12:32:59 -07:00
md5.c	lib/md5.c: simplify include	2015-02-12 18:54:15 -08:00
memory-notifier-error-inject.c
memweight.c
net_utils.c
nlattr.c	netlink: pad nla_memcpy dest buffer with zeroes	2015-03-31 14:07:24 -04:00
notifier-error-inject.c
notifier-error-inject.h
of-reconfig-notifier-error-inject.c
oid_registry.c
parser.c
pci_iomap.c
percpu_counter.c	percpu_counter: batch size aware __percpu_counter_compare()	2015-05-29 07:39:34 +10:00
percpu_ida.c	lib/percpu_ida.c: remove redundant includes	2015-02-12 18:54:16 -08:00
percpu_test.c
percpu-refcount.c
plist.c	lib/plist.c: remove redundant include	2015-02-12 18:54:16 -08:00
pm-notifier-error-inject.c
proportions.c
radix-tree.c	lib/radix-tree.c: change to simpler include	2015-02-12 18:54:16 -08:00
random32.c
ratelimit.c
rational.c
rbtree_test.c
rbtree.c
reciprocal_div.c
rhashtable.c	rhashtable: Do not schedule more than one rehash if we can't grow further	2015-04-22 14:17:22 -04:00
scatterlist.c
seq_buf.c	seq_buf: Fix seq_buf_bprintf() truncation	2015-03-04 23:40:19 -05:00
sha1.c	lib: EXPORT_SYMBOL sha_init	2015-03-23 22:12:08 -04:00
show_mem.c	lib/show_mem.c: remove redundant include	2015-02-12 18:54:16 -08:00
smp_processor_id.c
sort.c	lib/sort.c: move include inside #if 0	2015-02-12 18:54:16 -08:00
stmp_device.c	lib/stmp_device.c: replace module.h include	2015-02-12 18:54:16 -08:00
string_helpers.c	SCSI misc on 20150416	2015-04-16 19:02:04 -04:00
string.c	lib: memzero_explicit: use barrier instead of OPTIMIZER_HIDE_VAR	2015-03-20 07:56:12 +11:00
strncpy_from_user.c	lib/strncpy_from_user.c: replace module.h include	2015-02-12 18:54:16 -08:00
strnlen_user.c
swiotlb.c
syscall.c
test_bpf.c
test_firmware.c
test_kasan.c	lib: add kasan test module	2015-02-13 21:21:41 -08:00
test_module.c
test_rhashtable.c	test_rhashtable: Remove bogus max_size setting	2015-04-03 15:09:36 -04:00
test_user_copy.c
test-hexdump.c	hexdump: avoid warning in test function	2015-04-19 13:48:40 -07:00
test-kstrtox.c
test-string_helpers.c	lib/string_helpers.c: change semantics of string_escape_mem	2015-04-15 16:35:24 -07:00
textsearch.c
timerqueue.c
ts_bm.c
ts_fsm.c
ts_kmp.c
ucs2_string.c
usercopy.c
uuid.c
vsprintf.c	lib/vsprintf.c: improve put_dec_trunc8 slightly	2015-04-17 09:03:55 -04:00