Linus Torvalds
474095e46c
md updates for 4.1
...
Highlights:
- "experimental" code for managing md/raid1 across a cluster using
DLM. Code is not ready for general use and triggers a WARNING if used.
However it is looking good and mostly done and having in mainline
will help co-ordinate development.
- RAID5/6 can now batch multiple (4K wide) stripe_heads so as to
handle a full (chunk wide) stripe as a single unit.
- RAID6 can now perform read-modify-write cycles which should
help performance on larger arrays: 6 or more devices.
- RAID5/6 stripe cache now grows and shrinks dynamically. The value
set is used as a minimum.
- Resync is now allowed to go a little faster than the 'mininum' when
there is competing IO. How much faster depends on the speed of the
devices, so the effective minimum should scale with device speed to
some extent.
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Merge tag 'md/4.1' of git://neil.brown.name/md
Pull md updates from Neil Brown:
"More updates that usual this time. A few have performance impacts
which hould mostly be positive, but RAID5 (in particular) can be very
work-load ensitive... We'll have to wait and see.
Highlights:
- "experimental" code for managing md/raid1 across a cluster using
DLM. Code is not ready for general use and triggers a WARNING if
used. However it is looking good and mostly done and having in
mainline will help co-ordinate development.
- RAID5/6 can now batch multiple (4K wide) stripe_heads so as to
handle a full (chunk wide) stripe as a single unit.
- RAID6 can now perform read-modify-write cycles which should help
performance on larger arrays: 6 or more devices.
- RAID5/6 stripe cache now grows and shrinks dynamically. The value
set is used as a minimum.
- Resync is now allowed to go a little faster than the 'mininum' when
there is competing IO. How much faster depends on the speed of the
devices, so the effective minimum should scale with device speed to
some extent"
* tag 'md/4.1' of git://neil.brown.name/md: (58 commits)
md/raid5: don't do chunk aligned read on degraded array.
md/raid5: allow the stripe_cache to grow and shrink.
md/raid5: change ->inactive_blocked to a bit-flag.
md/raid5: move max_nr_stripes management into grow_one_stripe and drop_one_stripe
md/raid5: pass gfp_t arg to grow_one_stripe()
md/raid5: introduce configuration option rmw_level
md/raid5: activate raid6 rmw feature
md/raid6 algorithms: xor_syndrome() for SSE2
md/raid6 algorithms: xor_syndrome() for generic int
md/raid6 algorithms: improve test program
md/raid6 algorithms: delta syndrome functions
raid5: handle expansion/resync case with stripe batching
raid5: handle io error of batch list
RAID5: batch adjacent full stripe write
raid5: track overwrite disk count
raid5: add a new flag to track if a stripe can be batched
raid5: use flex_array for scribble data
md raid0: access mddev->queue (request queue member) conditionally because it is not set when accessed from dm-raid
md: allow resync to go faster when there is competing IO.
md: remove 'go_faster' option from ->sync_request()
...
2015-04-24 09:28:01 -07:00
..
fonts
fonts: Add 6x10 font
2014-10-09 11:35:48 +03:00
lz4
lib/lz4: Pull out constant tables
2015-03-25 15:04:57 +01:00
lzo
lzo: check for length overrun in variable length encoding.
2014-09-28 11:08:01 +02:00
mpi
MPILIB: Fix comparison of negative MPIs
2015-01-14 16:10:12 +00:00
raid6
md/raid6 algorithms: xor_syndrome() for SSE2
2015-04-22 08:00:42 +10:00
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
argv_split.c
asn1_decoder.c
lib/asn1_decoder.c: kernel-doc warning fix
2014-06-04 16:54:19 -07:00
assoc_array.c
assoc_array: Include rcupdate.h for call_rcu() definition
2015-01-07 16:08:41 +00:00
atomic64.c
locking,arch: Rewrite generic atomic support
2014-08-14 12:48:14 +02:00
atomic64_test.c
lib/atomic64_test.c: convert printk(KERN_INFO to pr_info
2014-06-04 16:54:19 -07:00
audit.c
syscalls: implement execveat() system call
2014-12-13 12:42:51 -08:00
average.c
lib: Ensure EWMA does not store wrong intermediate values
2014-01-16 23:46:06 -08:00
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
ARM: 8187/1: add CONFIG_HAVE_ARCH_BITREVERSE to support rbit instruction
2014-12-22 16:43:06 +00:00
bsearch.c
btree.c
lib/btree.c: fix leak of whole btree nodes
2014-06-04 16:54:18 -07:00
bug.c
lib/bug: Use RCU list ops for module_bug_list
2014-11-11 17:07:46 +10:30
build_OID_registry
X.509: do not emit any informational output
2013-06-19 17:54:06 +02:00
bust_spinlocks.c
check_signature.c
checksum.c
lib/checksum.c: fix build for generic csum_tcpudp_nofold
2015-01-29 11:57:38 -08:00
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
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
cpu-notifier-error-inject.c
cpu_rmap.c
Remove GENERIC_HARDIRQ config option
2013-09-13 15:09:52 +02:00
cpumask.c
This is the final removal (after several years!) of the obsolete cpus_*
2015-04-20 10:19:03 -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
crc7.c
lib/crc7: Shift crc7() output left 1 bit
2014-05-16 14:26:52 -04:00
crc8.c
crc16.c
crc32.c
lib: crc32: Add some additional __pure annotations
2014-06-25 16:04:00 -07:00
crc32defs.h
ctype.c
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
decompress.c
lib/decompress.c: consistency of compress formats for kernel image
2014-12-13 12:42:52 -08:00
decompress_bunzip2.c
decompress_bunzip2: off by one in get_next_block()
2014-12-13 12:42:52 -08:00
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
devres.c
lib: devres: add a helper function for ioremap_wc
2015-03-16 21:11:32 +01:00
digsig.c
lib/digsig.c: kernel-doc warning fixes
2014-06-04 16:54:19 -07:00
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
asmlinkage: Add explicit __visible to drivers/*, lib/*, kernel/*
2014-05-05 16:07:46 -07:00
dynamic_debug.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2015-02-10 18:57:15 -08:00
dynamic_queue_limits.c
lib/dynamic_queue_limits.c: simplify includes
2015-02-12 18:54:15 -08:00
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
fault-inject: add ratelimit option
2014-12-13 12:42:52 -08:00
fdt.c
fdt_empty_tree.c
lib: add fdt_empty_tree.c
2014-04-30 19:49:37 +01:00
fdt_ro.c
fdt_rw.c
fdt_strerror.c
fdt_sw.c
fdt_wip.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
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
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
lib/glob.c: add CONFIG_GLOB_SELFTEST
2014-08-06 18:01:25 -07:00
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
Make ARCH_HAS_FAST_MULTIPLIER a real config variable
2014-09-13 11:14:53 -07:00
idr.c
lib/idr.c: remove redundant include
2015-02-12 18:54:15 -08:00
inflate.c
int_sqrt.c
interval_tree.c
lib/interval_tree.c: simplify includes
2015-02-12 18:54:15 -08:00
interval_tree_test.c
lib: Export interval_tree
2014-05-05 09:09:14 +02:00
iomap.c
Kconfig: rename HAS_IOPORT to HAS_IOPORT_MAP
2014-04-07 16:36:11 -07:00
iomap_copy.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
kdb: Allow access to sensitive commands to be restricted by default
2014-11-11 09:31:52 -06:00
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.c
kobject: WARN as tip when call kobject_get() to a kobject not initialized
2015-03-25 15:26:49 +01:00
kobject_uevent.c
lib/kobject_uevent.c: remove redundant include
2015-02-12 18:54:15 -08:00
kstrtox.c
lib/kstrtox.c: remove redundant cleanup
2014-01-23 16:36:57 -08:00
kstrtox.h
lcm.c
block: fix blk_stack_limits() regression due to lcm() change
2015-03-31 09:45:50 -06:00
libcrc32c.c
crypto: LLVMLinux: Remove VLAIS usage from libcrc32c.c
2014-10-14 10:51:23 +02:00
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
locking/lockdep: Revert qrwlock recusive stuff
2014-10-03 06:09:30 +02:00
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
mac_pton: Use bool not int return
2014-06-25 17:45:43 -07:00
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
lib/parser.c: put EXPORT_SYMBOLs in the conventional place
2014-01-23 16:36:55 -08:00
pci_iomap.c
pci: add pci_iomap_range
2015-01-21 16:28:49 +10:30
percpu-refcount.c
percpu_ref: make INIT_ATOMIC and switch_to_atomic() sticky
2014-09-24 13:31:50 -04:00
percpu_counter.c
percpu_counter: add @gfp to percpu_counter_init()
2014-09-08 09:51:29 +09:00
percpu_ida.c
lib/percpu_ida.c: remove redundant includes
2015-02-12 18:54:16 -08:00
percpu_test.c
percpu: add test module for various percpu operations
2013-11-13 12:09:11 +09:00
plist.c
lib/plist.c: remove redundant include
2015-02-12 18:54:16 -08:00
pm-notifier-error-inject.c
proportions.c
proportions: add @gfp to init functions
2014-09-08 09:51:30 +09:00
radix-tree.c
lib/radix-tree.c: change to simpler include
2015-02-12 18:54:16 -08:00
random32.c
random32: improvements to prandom_bytes
2014-08-24 18:36:01 -07:00
ratelimit.c
rational.c
rbtree.c
lib/rbtree.c: fix typo in comment of __rb_insert()
2014-08-08 15:57:24 -07:00
rbtree_test.c
rbtree/test: test rbtree_postorder_for_each_entry_safe()
2014-01-23 16:37:03 -08:00
reciprocal_div.c
reciprocal_divide: update/correction of the algorithm
2014-01-21 23:17:20 -08:00
rhashtable.c
rhashtable: provide len to obj_hashfn
2015-03-25 17:18:33 +01:00
scatterlist.c
lib/scatterlist: fix memory leak with scsi-mq
2014-10-28 10:27:10 -06:00
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
percpu: add preemption checks to __this_cpu ops
2014-04-07 16:36:14 -07:00
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.c
lib: memzero_explicit: use barrier instead of OPTIMIZER_HIDE_VAR
2015-03-20 07:56:12 +11:00
string_helpers.c
SCSI misc on 20150416
2015-04-16 19:02:04 -04:00
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
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-hexdump.c
hexdump: avoid warning in test function
2015-04-19 13:48:40 -07:00
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.c: change semantics of string_escape_mem
2015-04-15 16:35:24 -07:00
test_bpf.c
test: bpf: expand DIV_KX to DIV_MOD_KX
2014-12-08 20:23:22 -05:00
test_firmware.c
test: add firmware_class loader test
2014-07-17 18:44:19 -07:00
test_kasan.c
lib: add kasan test module
2015-02-13 21:21:41 -08:00
test_module.c
test: add minimal module for verification testing
2014-01-23 16:36:57 -08:00
test_rhashtable.c
test_rhashtable: Remove bogus max_size setting
2015-04-03 15:09:36 -04:00
test_user_copy.c
test: check copy_to/from_user boundary validation
2014-01-23 16:36:57 -08:00
textsearch.c
lib/textsearch.c: remove textsearch_put reference from comments
2014-10-14 02:18:14 +02:00
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