Frederic Weisbecker
2bbb6817c0
nohz: Allow rcu extended quiescent state handling seperately from tick stop ...
It is assumed that rcu won't be used once we switch to tickless
mode and until we restart the tick. However this is not always
true, as in x86-64 where we dereference the idle notifiers after
the tick is stopped.
To prepare for fixing this, add two new APIs:
tick_nohz_idle_enter_norcu() and tick_nohz_idle_exit_norcu().
If no use of RCU is made in the idle loop between
tick_nohz_enter_idle() and tick_nohz_exit_idle() calls, the arch
must instead call the new *_norcu() version such that the arch doesn't
need to call rcu_idle_enter() and rcu_idle_exit().
Otherwise the arch must call tick_nohz_enter_idle() and
tick_nohz_exit_idle() and also call explicitly:
- rcu_idle_enter() after its last use of RCU before the CPU is put
to sleep.
- rcu_idle_exit() before the first use of RCU after the CPU is woken
up.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: David Miller <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2011-12-11 10:31:36 -08:00
Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
2011-11-04 18:02:25 -07:00
include: convert various register fcns to macros to avoid include chaining
2011-10-31 19:32:32 -04:00
can: remove references to berlios mailinglist
2011-10-17 19:22:46 -04:00
libceph: Allocate larger oid buffer in request msgs
2011-11-11 09:50:19 -08:00
Merge branch 'for-next' of git://git.infradead.org/users/sameo/mfd-2.6
2011-11-03 09:40:51 -07:00
Input: adp5589-keys - add support for the ADP5585 derivatives
2011-10-18 21:26:55 -07:00
regulator: TPS65910: Fix VDD1/2 voltage selector count
2011-11-23 14:03:52 +00:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
2011-11-01 10:51:38 -07:00
mmc: fix compile error when CONFIG_BLOCK is not enabled
2011-10-27 09:11:34 -04:00
Merge git://git.infradead.org/mtd-2.6
2011-11-07 09:11:16 -08:00
netfilter: export NAT definitions through linux/netfilter_ipv4/nf_nat.h
2011-11-01 09:19:52 +01:00
pinctrl: fix "warning: 'struct pinctrl_dev' declared inside parameter list"
2011-11-09 15:07:40 +01:00
drivers/leds/leds-renesas-tpu.c: move Renesas TPU LED driver platform data
2011-10-31 17:30:55 -07:00
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
backlight: fix broken regulator API usage in l4f00242t03
2011-10-31 17:30:54 -07:00
include: convert various register fcns to macros to avoid include chaining
2011-10-31 19:32:32 -04:00
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
2011-10-31 15:42:54 -07:00
include: convert various register fcns to macros to avoid include chaining
2011-10-31 19:32:32 -04:00
aio: allocate kiocbs in batches
2011-11-02 16:07:03 -07:00
mmc: atmel-mci: change namespace
2011-10-26 15:43:25 -04:00
mmc: atmel-mci: use ATMEL_PDC_SCND_BUF_OFF instead of a literal value
2011-10-26 15:43:26 -04:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
writeback: Add a 'reason' to wb_writeback_work
2011-10-31 00:33:36 +08:00
bio: change some signed vars to unsigned
2011-11-16 09:21:50 +01:00
block: Remove the control of complete cpu from bio.
2011-10-24 16:11:30 +02:00
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
can: remove references to berlios mailinglist
2011-10-17 19:22:46 -04:00
net: allow CAP_NET_RAW to set socket options IP{,V6}_TRANSPARENT
2011-10-20 18:21:36 -04:00
memcg: replace ss->id_lock with a rwlock
2011-11-02 16:07:03 -07:00
ARM: 7131/1: clkdev: Add Common Macro for clk_lookup
2011-10-13 14:36:58 +01:00
clocksource: Avoid selecting mult values that might overflow when adjusted
2011-11-10 11:27:08 -08:00
mm: compaction: make compact_zone_order() static
2011-10-31 17:30:49 -07:00
asm-generic/unistd.h: support new process_vm_{readv,write} syscalls
2011-12-03 15:31:48 -05:00
PM / Sleep: Remove unused symbol 'suspend_cpu_hotplug'
2011-11-04 22:28:09 +01:00
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
2011-11-07 10:13:52 -08:00
[S390] kdump: Add size to elfcorehdr kernel parameter
2011-10-30 15:16:41 +01:00
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
crypto: Add userspace report for cipher type algorithms
2011-10-21 14:24:07 +02:00
fix apparmor dereferencing potentially freed dentry, sanitize __d_path() API
2011-12-06 23:57:18 -05:00
PM / devfreq: fix private_data
2011-11-07 23:54:53 +01:00
dm table: add immutable feature
2011-10-31 20:19:04 +00:00
Merge branch 'driver-core-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2011-11-21 20:36:26 -08:00
device_cgroup.h: delete needless include <linux/module.h>
2011-10-31 19:32:26 -04:00
dm table: add immutable feature
2011-10-31 20:19:04 +00:00
dm kcopyd: add dm_kcopyd_zero to zero an area
2011-10-31 20:18:58 +00:00
dm log userspace: add log device dependency
2011-10-31 20:21:24 +00:00
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2011-11-06 17:12:03 -08:00
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
include/linux/dmar.h: forward-declare struct acpi_dmar_header
2011-10-31 17:30:44 -07:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
edac: Move edac main structs to include/linux/edac.h
2011-10-31 15:10:04 -02:00
block: drop @tsk from attempt_plug_merge() and explain sync rules
2011-10-19 14:33:08 +02:00
[S390] signal race with restarting system calls
2011-10-30 15:16:43 +01:00
bonding: comparing a u8 with -1 is always false
2011-11-04 18:37:23 -04:00
module.h: split out the EXPORT_SYMBOL into export.h
2011-10-31 09:20:11 -04:00
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
2011-11-02 10:06:20 -07:00
ext3: Remove the obsolete broken EXT3_IOC32_WAIT_FOR_READONLY.
2011-10-10 18:25:59 +02:00
filter: use unsigned int to silence static checker warning
2011-10-19 19:35:51 -04:00
include: replace linux/module.h with "struct module" wherever possible
2011-10-31 19:32:32 -04:00
PM / Freezer: Reimplement wait_event_freezekillable using freezer_do_not_count/freezer_count
2011-11-04 22:28:15 +01:00
vmscan: use atomic-long for shrinker batching
2011-12-09 07:50:27 -08:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
include: replace linux/module.h with "struct module" wherever possible
2011-10-31 19:32:32 -04:00
tracing: Restore system filter behavior
2011-12-05 13:28:45 -05:00
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
block: Revert "[SCSI] genhd: add a new attribute "alias" in gendisk"
2011-11-10 09:03:55 +01:00
gpiolib: Ensure struct gpio is always defined
2011-10-24 16:04:06 +02:00
rcu: Track idleness independent of idle tasks
2011-12-11 10:31:24 -08:00
include: convert various register fcns to macros to avoid include chaining
2011-10-31 19:32:32 -04:00
thp: mremap support and TLB optimization
2011-10-31 17:30:48 -07:00
hugetlb: remove dummy definitions of HPAGE_MASK and HPAGE_SIZE
2011-11-19 06:15:59 -05:00
hwspinlock: Don't return a value in __hwspin_unlock
2011-11-08 09:28:27 +02:00
hv: remove struct hv_device_info from hyperv.h
2011-10-11 09:51:22 -06:00
I2C: OMAP: remove unused function pointers from pdata
2011-10-29 09:37:09 +01:00
i2c: Delete ANY_I2C_BUS
2011-11-23 11:33:07 +01:00
Merge branch 'master' of git://git.infradead.org/users/linville/wireless-next into for-davem
2011-10-11 15:35:42 -04:00
if_link: Add additional parameter to IFLA_VF_INFO for spoof checking
2011-10-16 13:15:38 -07:00
macvtap: Fix the minor device number allocation
2011-10-21 02:53:07 -04:00
vlan: allow nested vlan_do_receive()
2011-10-30 04:43:30 -04:00
net-netlink: Add a new attribute to expose TCLASS values via netlink
2011-11-14 01:08:49 -05:00
Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2011-12-05 16:50:24 -08:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
2011-10-28 14:25:01 -07:00
Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2011-10-26 16:17:32 +02:00
genirq: Add IRQF_RESUME_EARLY and resume such IRQs earlier
2011-10-17 11:42:49 +02:00
Merge branch 'drm-core-next' of git://people.freedesktop.org/~airlied/linux
2011-10-28 05:54:23 -07:00
Merge branches 'amd/fixes', 'debug/dma-api', 'arm/omap', 'arm/msm', 'core', 'iommu/fault-reporting' and 'api/iommu-ops-per-bus' into next
2011-10-21 14:38:55 +02:00
include: replace linux/module.h with "struct module" wherever possible
2011-10-31 19:32:32 -04:00
include: replace linux/module.h with "struct module" wherever possible
2011-10-31 19:32:32 -04:00
irq: don't put module.h into irq.h for tracking irqgen modules.
2011-10-31 19:32:35 -04:00
irq: don't put module.h into irq.h for tracking irqgen modules.
2011-10-31 19:32:35 -04:00
irq: support domains with non-zero hwirq base
2011-10-31 14:03:23 +01:00
jdb/jbd2: factor out common functions from the jbd[2] header files
2011-10-27 04:38:18 -04:00
jdb/jbd2: factor out common functions from the jbd[2] header files
2011-10-27 04:38:18 -04:00
jdb/jbd2: factor out common functions from the jbd[2] header files
2011-10-27 04:38:18 -04:00
jump-label: initialize jump-label subsystem much earlier
2011-10-25 11:55:15 -07:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
module,bug: Add TAINT_OOT_MODULE flag for modules not built in-tree
2011-11-07 07:54:42 +10:30
Merge branch 'akpm' (Andrew's incoming)
2011-10-31 17:46:07 -07:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
Revert "KVM: PPC: Add support for explicit HIOR setting"
2011-11-17 16:30:25 +02:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
lis3lv02d: make regulator API usage unconditional
2011-10-31 17:30:52 -07:00
llist-return-whether-list-is-empty-before-adding-in-llist_add-fix
2011-10-31 17:30:57 -07:00
Merge branch 'for-3.2/drivers' of git://git.kernel.dk/linux-block
2011-11-04 17:22:14 -07:00
minix: describe usage of different magic numbers
2011-11-02 16:06:59 -07:00
include: replace linux/module.h with "struct module" wherever possible
2011-10-31 19:32:32 -04:00
memblock: add memblock_start_of_DRAM()
2011-10-31 17:30:47 -07:00
memcg: skip scanning active lists based on individual size
2011-11-02 16:07:00 -07:00
miscdevice.h: fix up implicit use of lists and types
2011-10-31 19:32:29 -04:00
vmscan: use atomic-long for shrinker batching
2011-12-09 07:50:27 -08:00
mm: thp: tail page refcounting fix
2011-11-02 16:06:57 -07:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
mm: vmscan: immediately reclaim end-of-LRU dirty pages when writeback completes
2011-10-31 17:30:47 -07:00
module.h: relocate MODULE_PARM_DESC into moduleparam.h
2011-10-31 09:20:11 -04:00
module.h: relocate MODULE_PARM_DESC into moduleparam.h
2011-10-31 09:20:11 -04:00
readlinkat: ensure we return ENOENT for the empty pathname for normal lookups
2011-11-02 12:53:42 +01:00
net: validate HWTSTAMP ioctl parameters
2011-10-19 17:00:35 -04:00
net: Fix corruption in /proc/*/net/dev_mcast
2011-11-28 18:07:29 -05:00
Merge git://github.com/herbertx/crypto
2011-11-01 09:24:41 -07:00
nfsd4: implement new 4.1 open reclaim types
2011-10-19 11:52:12 -04:00
nfs: when attempting to open a directory, fall back on normal lookup (try #5 )
2011-11-04 16:39:04 -04:00
NFS: Don't rely on PageError in nfs_readpage_release_partial
2011-10-19 13:58:38 -07:00
nfs: when attempting to open a directory, fall back on normal lookup (try #5 )
2011-11-04 16:39:04 -04:00
nl80211: Add sta_flags to the station info
2011-10-14 14:48:23 -04:00
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
of/irq: introduce of_irq_init
2011-10-31 14:03:22 +01:00
of_platform.h: delete needless include <linux/module.h>
2011-10-31 19:32:27 -04:00
oom: fix race while temporarily setting current's oom_score_adj
2011-10-31 17:30:45 -07:00
PM / OPP: Fix build when CONFIG_PM_OPP is not set
2011-11-04 22:28:13 +01:00
PCI: Fix compile errors with PCI_ATS and !PCI_IOV
2011-10-31 10:23:57 -07:00
PCI: Fix compile errors with PCI_ATS and !PCI_IOV
2011-10-31 10:23:57 -07:00
include: convert various register fcns to macros to avoid include chaining
2011-10-31 19:32:32 -04:00
x86, amd: Fix up numa_node information for AMD CPU family 15h model 0-0fh northbridge functions
2011-12-05 18:13:11 +01:00
PCI: Add support for PASID capability
2011-10-14 09:05:35 -07:00
perf: Fix loss of notification with multi-event
2011-12-05 09:33:03 +01:00
net: hold sock reference while processing tx timestamps
2011-10-24 02:54:50 -04:00
tc: comment spelling fixes
2011-11-22 16:37:01 -05:00
Merge branch 'spi/next' of git://git.secretlab.ca/git/linux-2.6
2011-10-29 07:28:36 -07:00
PM: Update comments describing device power management callbacks
2011-11-28 22:14:55 +01:00
PM Sleep: Do not extend wakeup paths to devices with ignore_children set
2011-11-17 21:39:33 +01:00
pps: new client driver using GPIO
2011-11-02 16:07:02 -07:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
pstore: pass allocated memory region back to caller
2011-11-17 12:58:07 -08:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
Merge branch 'x86-rdrand-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2011-10-28 05:29:07 -07:00
rcu: Remove one layer of abstraction from PROVE_RCU checking
2011-12-11 10:31:32 -08:00
include: replace linux/module.h with "struct module" wherever possible
2011-10-31 19:32:32 -04:00
RapidIO: add mport driver for Tsi721 bridge
2011-11-02 16:07:01 -07:00
writeback: remove vm_dirties and task->dirties
2011-11-17 20:49:06 +08:00
include/linux/sem.h: make sysv_sem empty if SYSVIPC is disabled
2011-11-02 16:07:01 -07:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
RS485: fix inconsistencies in the meaning of some variables
2011-11-15 12:13:44 -08:00
Merge branches 'sh/pm-runtime' and 'common/clkfwk' into sh-fixes-for-linus
2011-11-11 16:16:25 +09:00
include: convert various register fcns to macros to avoid include chaining
2011-10-31 19:32:32 -04:00
sh: clkfwk: Kill off remaining debugfs cruft.
2011-11-11 16:11:41 +09:00
ARM: mach-shmobile: move helper macro PORTCR to sh_pfc.h
2011-11-11 16:45:35 +09:00
vmscan: use atomic-long for shrinker batching
2011-12-09 07:50:27 -08:00
firmware: Sigma: Fix endianess issues
2011-11-29 11:59:50 +00:00
include: linux: skbuf.h: Fix parameter documentation
2011-11-01 00:55:48 -04:00
rcu: Make srcu_read_lock_held() call common lockdep-enabled function
2011-12-11 10:31:34 -08:00
stop_machine.h: fix implicit use of smp.h for smp_processor_id
2011-10-31 19:32:28 -04:00
lib/string.c: introduce memchr_inv()
2011-10-31 17:30:47 -07:00
PM / VT: Cleanup #if defined uglyness and fix compile error
2011-10-16 23:28:51 +02:00
mm: change isolate mode from #define to bitwise type
2011-10-31 17:30:44 -07:00
Cross Memory Attach
2011-10-31 17:30:44 -07:00
sysctl: add support for poll()
2011-11-02 16:07:02 -07:00
sysdev.h: dont include <linux/module.h> for no reason
2011-10-31 19:32:24 -04:00
sysfs: Implement support for tagged files in sysfs.
2011-10-19 19:24:14 -04:00
include: replace linux/module.h with "struct module" wherever possible
2011-10-31 19:32:32 -04:00
nohz: Allow rcu extended quiescent state handling seperately from tick stop
2011-12-11 10:31:36 -08:00
treewide: use __printf not __attribute__((format(printf,...)))
2011-10-31 17:30:54 -07:00
Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
2011-10-26 15:11:09 +02:00
Input: force feedback - potential integer wrap in input_ff_create()
2011-10-12 21:13:11 -07:00
include: replace linux/module.h with "struct module" wherever possible
2011-10-31 19:32:32 -04:00
include: convert various register fcns to macros to avoid include chaining
2011-10-31 19:32:32 -04:00
sysctl: add support for poll()
2011-11-02 16:07:02 -07:00
uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
2011-10-31 19:32:31 -04:00
vermagic: delete unused include of <linux/module.h>
2011-10-31 19:32:23 -04:00
[media] v4l: Add AUTO option for the V4L2_CID_POWER_LINE_FREQUENCY control
2011-11-03 18:29:09 -02:00
virtio.h: correct comment for struct virtio_driver
2011-11-02 11:40:59 +10:30
virtio-pci: make reset operation safer
2011-11-24 13:04:48 +10:30
virtio-mmio: Correct the name of the guest features selector
2011-11-24 13:04:47 +10:30
virtio: modify vring_init and vring_size to take account of the layout containing *_event_idx
2011-11-02 11:40:59 +10:30
include: replace linux/module.h with "struct module" wherever possible
2011-10-31 19:32:32 -04:00
xen: map foreign pages for shared rings by updating the PTEs directly
2011-11-16 12:13:08 -05:00
writeback: Add a 'reason' to wb_writeback_work
2011-10-31 00:33:36 +08:00
