Linus Torvalds f0691533b7 virtio/vhost: new features, performance improvements, cleanups ...

This adds basic polling support for vhost.
 Reworks virtio to optionally use DMA API, fixing it on Xen.
 Balloon stats gained a new entry.
 Using the new napi_alloc_skb speeds up virtio net.
 virtio blk stats can now be read while another VCPU
 us busy inflating or deflating the balloon.
 Plus misc cleanups in various places.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio/vhost updates from Michael Tsirkin:
 "New features, performance improvements, cleanups:

   - basic polling support for vhost
   - rework virtio to optionally use DMA API, fixing it on Xen
   - balloon stats gained a new entry
   - using the new napi_alloc_skb speeds up virtio net
   - virtio blk stats can now be read while another VCPU is busy
     inflating or deflating the balloon

  plus misc cleanups in various places"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  virtio_net: replace netdev_alloc_skb_ip_align() with napi_alloc_skb()
  vhost_net: basic polling support
  vhost: introduce vhost_vq_avail_empty()
  vhost: introduce vhost_has_work()
  virtio_balloon: Allow to resize and update the balloon stats in parallel
  virtio_balloon: Use a workqueue instead of "vballoon" kthread
  virtio/s390: size of SET_IND payload
  virtio/s390: use dev_to_virtio
  vhost: rename vhost_init_used()
  vhost: rename cross-endian helpers
  virtio_blk: VIRTIO_BLK_F_WCE->VIRTIO_BLK_F_FLUSH
  vring: Use the DMA API on Xen
  virtio_pci: Use the DMA API if enabled
  virtio_mmio: Use the DMA API if enabled
  virtio: Add improved queue allocation API
  virtio_ring: Support DMA APIs
  vring: Introduce vring_use_dma_api()
  s390/dma: Allow per device dma ops
  alpha/dma: use common noop dma ops
  dma: Provide simple noop dma ops

2016-03-20 13:28:18 -07:00

..

842

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

2016-03-17 21:38:27 -07:00

fonts

fonts: Add 6x10 font

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

lz4

lz4: fix system halt at boot kernel on x86_64

2015-05-24 11:56:29 -07:00

lzo

lzo: check for length overrun in variable length encoding.

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

mpi

lib/mpi: use "static inline" instead of "extern inline"

2016-02-28 03:26:34 +08:00

raid6

powerpc: Create disable_kernel_{fp,altivec,vsx,spe}()

2015-12-01 13:52:25 +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_deflate/deftree: remove bi_reverse()

2015-09-10 13:29:01 -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

ASN.1: Handle 'ANY OPTIONAL' in grammar

2015-08-05 13:38:07 +01:00

assoc_array.c

assoc_array: Include rcupdate.h for call_rcu() definition

2015-01-07 16:08:41 +00:00

atomic64_test.c

x86/cpufeature: Carve out X86_FEATURE_*

2016-01-30 11:22:17 +01:00

atomic64.c

atomic: Provide atomic_{or,xor,and}

2015-07-27 14:06:24 +02:00

audit.c

syscalls: implement execveat() system call

2014-12-13 12:42:51 -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: conversion routines to/from u32 array

2016-02-19 22:54:09 -05:00

bitrev.c

ARM: 8187/1: add CONFIG_HAVE_ARCH_BITREVERSE to support rbit instruction

2014-12-22 16:43:06 +00:00

bsearch.c

lib: reduce the use of module.h wherever possible

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

btree.c

treewide: Remove old email address

2015-11-23 09:44:58 +01:00

bug.c

lib/bug.c: use common WARN helper

2016-03-17 15:09:34 -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

ipv4: Update parameters for csum_tcpudp_magic to their original types

2016-03-13 23:55:13 -04:00

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

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

sched/topology: Rename topology_thread_cpumask() to topology_sibling_cpumask()

2015-05-27 15:22:15 +02:00

cpu-notifier-error-inject.c

cpu: rewrite cpu-notifier-error-inject module

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

cpumask.c

cpumask: Export cpumask_any_but()

2016-02-29 09:35:20 +01:00

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

lib: crc-itu-t.[ch] fix 0x0x prefix in integer constants

2015-05-26 15:26:43 +02:00

crc-t10dif.c

lib: introduce crc_t10dif_update()

2015-05-30 22:42:24 -07:00

ctype.c

lib: reduce the use of module.h wherever possible

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

debug_info.c

kbuild: include core debug info when DEBUG_INFO_REDUCED

2015-06-11 15:08:32 +02:00

debug_locks.c

mutex: Add support for wound/wait style locks

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

debugobjects.c

debugobjects: Allow bigger number of early boot objects

2016-01-27 15:40:59 +01:00

dec_and_lock.c

lib: reduce the use of module.h wherever possible

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

decompress_bunzip2.c

lib/decompressors: use real out buf size for gunzip with kernel

2015-09-10 13:29:01 -07:00

decompress_inflate.c

lib/decompressors: use real out buf size for gunzip with kernel

2015-09-10 13:29:01 -07:00

decompress_unlz4.c

lib/decompressors: use real out buf size for gunzip with kernel

2015-09-10 13:29:01 -07:00

decompress_unlzma.c

lib/decompress_unlzma: Do a NULL check for pointer

2015-09-10 13:29:01 -07:00

decompress_unlzo.c

lib/decompressors: use real out buf size for gunzip with kernel

2015-09-10 13:29:01 -07:00

decompress_unxz.c

lib/decompressors: use real out buf size for gunzip with kernel

2015-09-10 13:29:01 -07:00

decompress.c

lib/decompress: set the compressor name to NULL on error

2015-07-17 16:39:54 -07:00

devres.c

devres: use to_pci_dev()

2016-02-07 23:17:59 -08:00

digsig.c

KEYS: Merge the type-specific data with the payload data

2015-10-21 15:18:36 +01:00

div64.c

__div64_32(): make it overridable at compile time

2015-11-16 14:42:12 -05:00

dma-debug.c

dma-debug: switch check from _text to _stext

2016-01-14 16:00:49 -08:00

dma-noop.c

dma: Provide simple noop dma ops

2016-03-02 17:01:55 +02:00

dump_stack.c

dump_stack: avoid potential deadlocks

2016-02-05 18:10:40 -08:00

dynamic_debug.c

convert a bunch of open-coded instances of memdup_user_nul()

2016-01-04 10:26:58 -05:00

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

extable: add support for relative extables to search and sort routines

2016-02-24 14:57:26 +00:00

fault-inject.c

fault-inject: fix inverted interval/probability values in printk

2015-10-23 17:55:10 +09:00

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_bit.c

lib: rename lib/find_next_bit.c to lib/find_bit.c

2015-04-17 09:03:54 -04:00

flex_array.c

reciprocal_divide: update/correction of the algorithm

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

flex_proportions.c

lib+mm: fix few spelling mistakes

2016-02-15 11:18:23 +01:00

gcd.c

lib/gcd.c: prevent possible div by 0

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

gen_crc32table.c

lib: crc32: constify crc32 lookup table

2015-02-13 21:21:35 -08:00

genalloc.c

CPM/QE: use genalloc to manage CPM/QE muram

2015-12-22 17:10:18 -06:00

glob.c

lib/glob.c: add CONFIG_GLOB_SELFTEST

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

halfmd4.c

lib/halfmd4.c: use rol32 inline function in the ROUND macro

2015-11-06 17:50:42 -08:00

hexdump.c

lib/hexdump.c: truncate output in case of overflow

2015-11-06 17:50:42 -08:00

hweight.c

Make ARCH_HAS_FAST_MULTIPLIER a real config variable

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

idr.c

mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd

2015-11-06 17:50:42 -08:00

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

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/interval_tree.c: simplify includes

2015-02-12 18:54:15 -08:00

iomap_copy.c

lib/iomap_copy.c: add __ioread32_copy()

2016-01-20 17:09:18 -08:00

iomap.c

Kconfig: rename HAS_IOPORT to HAS_IOPORT_MAP

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

iommu-common.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc

2015-11-05 16:34:48 -08:00

iommu-helper.c

The following text was taken from the original review request:

2012-03-24 10:24:31 -07:00

ioremap.c

x86, mm: support huge KVA mappings on x86

2015-04-14 16:49:04 -07:00

iov_iter.c

iov_iter: export import_single_range()

2015-12-06 20:42:19 -05:00

irq_poll.c

irq_poll: Fix irq_poll_sched()

2016-01-19 15:26:55 -05:00

irq_regs.c

lib: reduce the use of module.h wherever possible

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

is_single_threaded.c

lib/is_single_threaded.c: change current_is_single_threaded() to use for_each_thread()

2015-11-06 17:50:42 -08:00

jedec_ddr_data.c

ddr: add LPDDR2 data from JESD209-2

2012-05-02 00:04:06 -07:00

kasprintf.c

lib/kasprintf.c: add sanity check to kvasprintf

2016-01-16 11:17:27 -08:00

Kconfig

Initial roundup of 4.5 merge window patches

2016-01-23 18:45:06 -08:00

Kconfig.debug

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

2016-03-19 10:05:34 -07:00

Kconfig.kasan

mm, slub, kasan: enable user tracking by default with KASAN=y

2015-11-05 19:34:48 -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

kmemcheck: depend on HAVE_ARCH_KMEMCHECK

2009-07-01 22:28:44 +02:00

Kconfig.ubsan

ubsan: cosmetic fix to Kconfig text

2016-02-11 18:35:48 -08:00

kfifo.c

kfifo: use BUG_ON

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

klist.c

klist: fix starting point removed bug in klist iterators

2016-02-07 22:18:47 -08:00

kobject_uevent.c

lib/kobject_uevent.c: remove redundant include

2015-02-12 18:54:15 -08:00

kobject.c

kobject: export kset_find_obj() for module use

2016-02-09 17:36:34 -08:00

kstrtox.c

lib: add "on"/"off" support to kstrtobool

2016-03-17 15:09:34 -07:00

kstrtox.h

lib/kstrtox: common code between kstrto*() and simple_strto*() functions

2011-10-31 17:30:56 -07:00

lcm.c

block: fix blk_stack_limits() regression due to lcm() change

2015-03-31 09:45:50 -06:00

libcrc32c.c

Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2016-01-22 11:58:43 -08:00

list_debug.c

list: kill list_force_poison()

2016-03-09 15:43:42 -08:00

list_sort.c

lib/list_sort: use late_initcall to hook in self tests

2015-06-16 14:12:35 -04:00

llist.c

lib/llist.c: fix data race in llist_del_first

2015-11-06 17:50:42 -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/lockref: Remove homebrew cmpxchg64_relaxed() macro definition

2015-08-12 11:59:04 +02:00

lru_cache.c

lru_cache: Converted lc_seq_printf_status to return void

2015-11-25 09:22:02 -07:00

Makefile

virtio/vhost: new features, performance improvements, cleanups

2016-03-20 13:28:18 -07:00

md5.c

lib/md5.c: simplify include

2015-02-12 18:54:15 -08:00

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

netdev-notifier-error-inject.c

net: Add support for CHANGEUPPER notifier error injection

2015-12-03 11:49:23 -05:00

nlattr.c

netlink: pad nla_memcpy dest buffer with zeroes

2015-03-31 14:07:24 -04:00

nmi_backtrace.c

ARM: 8439/1: Fix backtrace generation when IPI is masked

2015-10-03 16:40:51 +01:00

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

once.c

once: make helper generic for calling functions once

2015-10-08 05:26:36 -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

libnvdimm for 4.3:

2015-09-08 14:35:59 -07:00

percpu_counter.c

percpu_counter: batch size aware __percpu_counter_compare()

2015-05-29 07:39:34 +10:00

percpu_ida.c

mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM

2015-11-06 17:50:42 -08:00

percpu_test.c

percpu: add test module for various percpu operations

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

percpu-refcount.c

lib+mm: fix few spelling mistakes

2016-02-15 11:18:23 +01:00

plist.c

lib/plist.c: remove redundant include

2015-02-12 18:54:16 -08:00

pm-notifier-error-inject.c

PM: PM notifier error injection module

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

proportions.c

treewide: Remove old email address

2015-11-23 09:44:58 +01:00

radix-tree.c

radix_tree: add radix_tree_dump

2016-03-17 15:09:34 -07:00

random32.c

netfilter: meta: add PRANDOM support

2016-02-29 13:55:59 +01:00

ratelimit.c

ratelimit: fix bug in time interval by resetting right begin time

2016-01-21 17:20:51 -08:00

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

rbtree: Make lockless searches non-fatal

2015-05-28 11:32:04 +09:30

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

2015-12-31 18:20:10 -05:00

scatterlist.c

scatterlist: fix a typo in comment block of sg_miter_stop()

2016-02-08 10:15:17 -08:00

seq_buf.c

tracing: Use seq_buf_used() in seq_buf_to_user() instead of len

2015-12-23 14:27:20 -05:00

sg_split.c

lib: scatterlist: add sg splitting function

2015-08-24 14:28:01 -06:00

sha1.c

lib: EXPORT_SYMBOL sha_init

2015-03-23 22:12:08 -04:00

show_mem.c

lib/show_mem.c: correct reserved memory calculation

2015-09-08 15:35:28 -07:00

smp_processor_id.c

percpu: add preemption checks to __this_cpu ops

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

sort.c

lib/sort: Add 64 bit swap function

2015-06-25 17:00:40 -07:00

stmp_device.c

lib/stmp_device.c: replace module.h include

2015-02-12 18:54:16 -08:00

string_helpers.c

string_helpers: fix precision loss for some inputs

2016-01-20 17:09:18 -08:00

string.c

lib: move strtobool() to kstrtobool()

2016-03-17 15:09:34 -07:00

strncpy_from_user.c

Use the new batched user accesses in generic user string handling

2015-12-17 10:05:19 -08:00

strnlen_user.c

Use the new batched user accesses in generic user string handling

2015-12-17 10:05:19 -08:00

swiotlb.c

Merge branch 'for-4.2/sg' of git://git.kernel.dk/linux-block

2015-06-25 15:22:36 -07:00

syscall.c

lib/syscall.c: unexport task_current_syscall()

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

test_bitmap.c

test_bitmap: unit tests for lib/bitmap.c

2016-02-19 22:54:09 -05:00

test_bpf.c

bpf, test: add couple of test cases

2015-12-18 16:04:51 -05:00

test_firmware.c

test: firmware_class: add asynchronous request trigger

2016-01-07 13:44:22 -07:00

test_hexdump.c

test_hexdump: print statistics at the end

2016-01-20 17:09:18 -08:00

test_kasan.c

lib: test_kasan: add some testcases

2015-11-05 19:34:48 -08:00

test_module.c

test: add minimal module for verification testing

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

test_printf.c

mm, printk: introduce new format string for flags

2016-03-15 16:55:16 -07:00

test_rhashtable.c

rhashtable-test: allow to retry even if -ENOMEM was returned

2015-11-23 12:36:08 -05:00

test_static_key_base.c

locking/static_keys: Provide a selftest

2015-08-03 11:51:12 +02:00

test_static_keys.c

locking/static_keys: Avoid nested functions

2016-02-09 10:27:29 +01:00

test_user_copy.c

test: check copy_to/from_user boundary validation

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

test-kstrtox.c

kstrto*: accept "-0" for signed conversion

2015-09-10 13:29:01 -07:00

test-string_helpers.c

lib/test-string_helpers.c: fix and improve string_get_size() tests

2016-02-03 08:28:43 -08:00

textsearch.c

lib/textsearch.c: remove textsearch_put reference from comments

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

timerqueue.c

timerqueue: Let timerqueue_add/del return information

2015-04-22 17:06:49 +02:00

ts_bm.c

…

ts_fsm.c

…

ts_kmp.c

…

ubsan.c

UBSAN: run-time undefined behavior sanity checker

2016-01-20 17:09:18 -08:00

ubsan.h

UBSAN: run-time undefined behavior sanity checker

2016-01-20 17:09:18 -08:00

ucs2_string.c

lib/ucs2_string: Correct ucs2 -> utf8 conversion

2016-02-16 12:49:05 +00:00

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

sscanf: implement basic character sets

2016-03-17 15:09:34 -07:00