The pdflush thread is long gone, so this patch removes references to pdflush
from btrfs comments.
Cc: Chris Mason <chris.mason@fusionio.com>
Cc: linux-btrfs@vger.kernel.org
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
The '->write_super' superblock method is gone, and this patch removes all the
references to 'write_super' from btrfs.
Cc: Chris Mason <chris.mason@fusionio.com>
Cc: linux-btrfs@vger.kernel.org
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
The pdflush thread is long gone, so this patch removes references to pdflush
from ext4 comments.
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
The '->write_super' superblock method is gone, and this patch removes all the
references to 'write_super' from ext3.
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
The '->write_super' superblock method is gone, and this patch removes all the
references to 'write_super' from ext3.
Cc: Jan Kara <jack@suse.cz>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
The pdflush thread is long gone, however we still mention it incorrectly in the
kernel documentation. This patch fixes the situation.
Cc: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
The '->write_super' superblock method is gone, and this patch removes all the
references to 'write_super' from various pieces of the kernel documentation.
Cc: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Finally we can kill the 'sync_supers' kernel thread along with the
'->write_super()' superblock operation because all the users are gone.
Now every file-system is supposed to self-manage own superblock and
its dirty state.
The nice thing about killing this thread is that it improves power management.
Indeed, 'sync_supers' is a source of monotonic system wake-ups - it woke up
every 5 seconds no matter what - even if there were no dirty superblocks and
even if there were no file-systems using this service (e.g., btrfs and
journalled ext4 do not need it). So it was wasting power most of the time. And
because the thread was in the core of the kernel, all systems had to have it.
So I am quite happy to make it go away.
Interestingly, this thread is a left-over from the pdflush kernel thread which
was a self-forking kernel thread responsible for all the write-back in old
Linux kernels. It was turned into per-block device BDI threads, and
'sync_supers' was a left-over. Thus, R.I.P, pdflush as well.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Pull exofs update from Boaz Harrosh:
"They are all mostly fixes, except the most important patch by Artem
Bityutskiy which removes the use of s_dirt. After this patch s_dirt
can be completely removed from the tree."
* 'for-linus' of git://git.open-osd.org/linux-open-osd:
ore: Fix out-of-bounds access in _ios_obj()
exofs: Use proper max_IO calculations from ore
exofs: Fix __r4w_get_page when offset is beyond i_size
exofs: stop using s_dirt
exofs: readpage_strip: Add a BUG_ON to check for PageLocked(page)
A bunch of small fixes for ASoC, mainly against regressions due to the
defaulting regmap i/o, in addition to a HD-audio fixup.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.19 (GNU/Linux)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=XuSA
-----END PGP SIGNATURE-----
Merge tag 'sound-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A bunch of small fixes for ASoC, mainly against regressions due to the
defaulting regmap i/o, in addition to a HD-audio fixup."
* tag 'sound-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: core: Fix check before defaulting to regmap
ALSA: hda - Support dock on Lenovo Thinkpad T530 with ALC269VC
ASoC: wm8962: Allow VMID time to fully ramp
ASoC: AC97 doesn't use regmap by default
ASoC: sgtl5000: enable VAG_POWER for LINE_IN
ASoC: ab8500: Inform SoC Core that we have our own I/O arrangements
ASoC: omap: Add missing modules aliases to get sound working on omap devices
sound: tegra_alc5632: Adjust to of_get_named_gpio() change
sound: tegra_wm8903: Adjust to of_get_named_gpio() change
ASoC: mc13783: Provide codec->control_data
ASoC: ux500: Include the correct header files
ASoC: wm8994: Hold runtime PM reference while handling mic and jack IRQs
ASoC: sgtl5000: remove unneeded snd_soc_dapm_new_widgets in probe
ASoC: mxs-saif: set a base clock rate for EXTMASTER mode work
ASoC: mxs-saif: fix clock prepare and enable unbalance issue
ASoC: wm8994: Ensure there are enough BCLKs for four channels
Pull futex fixes from Ingo Molnar:
"A couple of futex fixes from Darren Hart: two bugs reported by Dave
Jones (found with his trinity test) and Dan Carpenter through static
analysis. The third found while debugging the first two."
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
futex: Forbid uaddr == uaddr2 in futex_wait_requeue_pi()
futex: Fix bug in WARN_ON for NULL q.pi_state
futex: Test for pi_mutex on fault in futex_wait_requeue_pi()
Pull x86 fixes from Ingo Molnar:
"Various fixes"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86-64, kcmp: The kcmp system call can be common
arch/x86/kernel/kdebugfs.c: Ensure a consistent return value in error case
x86/mce: Add quirk for instruction recovery on Sandy Bridge processors
x86/mce: Move MCACOD defines from mce-severity.c to <asm/mce.h>
x86/ioapic: Fix NULL pointer dereference on CPU hotplug after disabling irqs
x86, nops: Missing break resulting in incorrect selection on Intel
x86: CONFIG_CC_STACKPROTECTOR=y is no longer experimental
Pull timer fixes from Ingo Molnar:
"One regression fix, and a couple of cleanups that clean up the code
flow in areas that had high-profile bugs recently."
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
time: Remove all direct references to timekeeper
time: Clean up offs_real/wall_to_mono and offs_boot/total_sleep_time updates
time: Clean up stray newlines
time/jiffies: Rename ACTHZ to SHIFTED_HZ
time/jiffies: Allow CLOCK_TICK_RATE to be undefined
time: Fix casting issue in tk_set_xtime and tk_xtime_add
Pull scheduler fixes from Ingo Molnar:
"Fixes and two late cleanups"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/cleanups: Add load balance cpumask pointer to 'struct lb_env'
sched: Fix comment about PREEMPT_ACTIVE bit location
sched: Fix minor code style issues
sched: Use task_rq_unlock() in __sched_setscheduler()
sched/numa: Add SD_PERFER_SIBLING to CPU domain
Pull perf fixes from Ingo Molnar:
"Fix merge window fallout and fix sleep profiling (this was always
broken, so it's not a fix for the merge window - we can skip this one
from the head of the tree)."
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/trace: Add ability to set a target task for events
perf/x86: Fix USER/KERNEL tagging of samples properly
perf/x86/intel/uncore: Make UNCORE_PMU_HRTIMER_INTERVAL 64-bit
Pull irq fix from Ingo Molnar.
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq: Allow irq chips to mark themself oneshot safe
usb-dbgp - increase the controller wait time to come out of halt.
kdb - Remove unused KDB_FLAG_ONLY_DO_DUMP code and cpu in more prompt
debug core - pass NMI type on archs that provide NMI types
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=LAWq
-----END PGP SIGNATURE-----
Merge tag 'for_linux-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb
Pull KGDB/KDB/usb-dbgp fixes and cleanups from Jason Wessel:
"There are no new features, those will be delayed to the 3.7 window.
There are only fixes/cleanup against the usual kernel churn and we are
removing more lines than we add:
- usb-dbgp - increase the controller wait time to come out of halt.
- kdb - Remove unused KDB_FLAG_ONLY_DO_DUMP code and cpu in more prompt
- debug core - pass NMI type on archs that provide NMI types"
* tag 'for_linux-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb:
USB: echi-dbgp: increase the controller wait time to come out of halt.
kernel/debug: Make use of KGDB_REASON_NMI
kdb: Remove cpu from the more prompt
kdb: Remove unused KDB_FLAG_ONLY_DO_DUMP
Pull m68k updates from Geert Uytterhoeven.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k: Make sys_atomic_cmpxchg_32 work on classic m68k
m68k/apollo: Rename "timer" to "apollo_timer"
zorro: Remove unused zorro_bus.devices
m68k: Remove never used asm/shm.h
m68k/sun3: Remove unselectable code in prom_init()
m68k: Use asm-generic version of <asm/sections.h>
m68k: Replace m68k-specific _[se]bss by generic __bss_{start,stop}
mtd/uclinux: Use generic __bss_stop instead of _ebss
m68knommu: Allow ColdFire CPUs to use unaligned accesses
m68k: Remove five unused headers
m68k: CPU32 does not support unaligned accesses
m68k: Introduce config option CPU_HAS_NO_UNALIGNED
m68k: delay, muldi3 - Use CONFIG_CPU_HAS_NO_MULDIV64
m68k: Move CPU_HAS_* config options
m68k: Remove duplicate FPU config option
m68knommu: Clean up printing of sections
m68k: Use asm-generic version of <asm/types.h>
m68k: Use Kbuild logic to import asm-generic headers
User space access must always go through uaccess accessors, since on
classic m68k user space and kernel space are completely separate.
Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Tested-by: Thorsten Glaser <tg@debian.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: stable@vger.kernel.org
Pull OLPC platform updates from Andres Salomon:
"These move the OLPC Embedded Controller driver out of
arch/x86/platform and into drivers/platform/olpc.
OLPC machines are now ARM-based (which means lots of x86 and ARM
changes), but are typically pretty self-contained.. so it makes more
sense to go through a separate OLPC tree after getting the appropriate
review/ACKs."
* 'for-linus-3.6' of git://dev.laptop.org/users/dilinger/linux-olpc:
x86: OLPC: move s/r-related EC cmds to EC driver
Platform: OLPC: move global variables into priv struct
Platform: OLPC: move debugfs support from x86 EC driver
x86: OLPC: switch over to using new EC driver on x86
Platform: OLPC: add a suspended flag to the EC driver
Platform: OLPC: turn EC driver into a platform_driver
Platform: OLPC: allow EC cmd to be overridden, and create a workqueue to call it
drivers: OLPC: update various drivers to include olpc-ec.h
Platform: OLPC: add a stub to drivers/platform/ for the OLPC EC driver
This branch contains a set of device-tree conversions for Marvell Orion
platforms that were staged early but took a few tries to get the branch
into a format where it was suitable for us to pick up.
Given that most people working on these platforms are hobbyists with
limited time, we were a bit more flexible with merging it even though
it came in late.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=xb8w
-----END PGP SIGNATURE-----
Merge tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm-soc Marvell Orion device-tree updates from Olof Johansson:
"This contains a set of device-tree conversions for Marvell Orion
platforms that were staged early but took a few tries to get the
branch into a format where it was suitable for us to pick up.
Given that most people working on these platforms are hobbyists with
limited time, we were a bit more flexible with merging it even though
it came in late."
* tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (21 commits)
ARM: Kirkwood: Replace mrvl with marvell
ARM: Kirkwood: Describe GoFlex Net LEDs and SATA in DT.
ARM: Kirkwood: Describe Dreamplug LEDs in DT.
ARM: Kirkwood: Describe iConnects LEDs in DT.
ARM: Kirkwood: Describe iConnects temperature sensor in DT.
ARM: Kirkwood: Describe IB62x0 LEDs in DT.
ARM: Kirkwood: Describe IB62x0 gpio-keys in DT.
ARM: Kirkwood: Describe DNS32? gpio-keys in DT.
ARM: Kirkwood: Move common portions into a kirkwood-dnskw.dtsi
ARM: Kirkwood: Replace DNS-320/DNS-325 leds with dt bindings
ARM: Kirkwood: Describe DNS325 temperature sensor in DT.
ARM: Kirkwood: Use DT to configure SATA device.
ARM: kirkwood: use devicetree for SPI on dreamplug
ARM: kirkwood: Add LS-XHL and LS-CHLv2 support
ARM: Kirkwood: Initial DTS support for Kirkwood GoFlex Net
ARM: Kirkwood: Add basic device tree support for QNAP TS219.
ATA: sata_mv: Add device tree support
ARM: Orion: DTify the watchdog timer.
ARM: Orion: Add arch support needed for I2C via DT.
ARM: kirkwood: use devicetree for orion-spi
...
Conflicts:
drivers/watchdog/orion_wdt.c
Coupled cpuidle was meant to merge for 3.5 through Len Brown's tree, but
didn't go in because the pull request ended up rejected. So it just got
merged, and we got this staged branch that enables the coupled cpuidle
code on OMAP.
With a stable git workflow from the other maintainer we could have staged
this earlier, but that wasn't the case so we have had to merge it late.
The alternative is to hold it off until 3.7 but given that the code is
well-isolated to OMAP and they are eager to see it go in, I didn't push
back hard in that direction.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=Wp41
-----END PGP SIGNATURE-----
Merge tag 'pm2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm-soc cpuidle enablement for OMAP from Olof Johansson:
"Coupled cpuidle was meant to merge for 3.5 through Len Brown's tree,
but didn't go in because the pull request ended up rejected. So it
just got merged, and we got this staged branch that enables the
coupled cpuidle code on OMAP.
With a stable git workflow from the other maintainer we could have
staged this earlier, but that wasn't the case so we have had to merge
it late.
The alternative is to hold it off until 3.7 but given that the code is
well-isolated to OMAP and they are eager to see it go in, I didn't
push back hard in that direction."
* tag 'pm2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: OMAP4: CPUidle: Open broadcast clock-event device.
ARM: OMAP4: CPUidle: add synchronization for coupled idle states
ARM: OMAP4: CPUidle: Use coupled cpuidle states to implement SMP cpuidle.
ARM: OMAP: timer: allow gp timer clock-event to be used on both cpus
A few fixes for merge window fallout, and a bugfix for timer resume
on PRIMA2.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=BkSN
-----END PGP SIGNATURE-----
Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"A few fixes for merge window fallout, and a bugfix for timer resume on
PRIMA2."
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: mmp: add missing irqs.h
arm: mvebu: fix typo in .dtsi comment for Armada XP SoCs
ARM: PRIMA2: delete redundant codes to restore LATCHED when timer resumes
ARM: mxc: Include missing irqs.h header
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
iEYEABECAAYFAlAaIN8ACgkQGkmNcg7/o7gpMgCgtmCJeUrSCc/eVKGy5ik1BPnC
3DAAoLdqCJflwx4mrN48kkXQj9SA4Xko
=Y6yl
-----END PGP SIGNATURE-----
Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh
Pull SuperH fixes from Paul Mundt.
* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh: (24 commits)
sh: explicitly include sh_dma.h in setup-sh7722.c
sh: ecovec: care CN5 VBUS if USB host mode
sh: sh7724: fixup renesas_usbhs clock settings
sh: intc: initial irqdomain support.
sh: pfc: Fix up init ordering mess.
serial: sh-sci: fix compilation breakage, when DMA is enabled
dmaengine: shdma: restore partial transfer calculation
sh: modify the sh_dmae_slave_config for RSPI in setup-sh7757
sh: Fix up recursive fault in oops with unset TTB.
sh: pfc: Build fix for pinctrl_remove_gpio_range() changes.
sh: select the fixed regulator driver on several boards
sh: ecovec: switch MMC power control to regulators
sh: add fixed voltage regulators to se7724
sh: add fixed voltage regulators to sdk7786
sh: add fixed voltage regulators to rsk
sh: add fixed voltage regulators to migor
sh: add fixed voltage regulators to kfr2r09
sh: add fixed voltage regulators to ap325rxa
sh: add fixed voltage regulators to sh7757lcr
sh: add fixed voltage regulators to sh2007
...
This contains a few patches that depend on
plugging changes in the block layer so needs to wait
for those.
It also contains a Kconfig fix for the new RAID10 support
in dm-raid.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.18 (GNU/Linux)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=ovN2
-----END PGP SIGNATURE-----
Merge tag 'md-3.6' of git://neil.brown.name/md
Pull additional md update from NeilBrown:
"This contains a few patches that depend on plugging changes in the
block layer so needed to wait for those.
It also contains a Kconfig fix for the new RAID10 support in dm-raid."
* tag 'md-3.6' of git://neil.brown.name/md:
md/dm-raid: DM_RAID should select MD_RAID10
md/raid1: submit IO from originating thread instead of md thread.
raid5: raid5d handle stripe in batch way
raid5: make_request use batch stripe release
Pull two ceph fixes from Sage Weil:
"The first patch fixes up the old crufty open intent code to use the
atomic_open stuff properly, and the second fixes a possible null deref
and memory leak with the crypto keys."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
libceph: fix crypto key null deref, memory leak
ceph: simplify+fix atomic_open
eCryptfs mount options do not
- Cleanups in the messaging code
- Better handling of empty files in the lower filesystem to improve usability.
Failed file creations are now cleaned up and empty lower files are converted
into eCryptfs during open().
- The write-through cache changes are being reverted due to bugs that are not
easy to fix. Stability outweighs the performance enhancements here.
- Improvement to the mount code to catch unsupported ciphers specified in the
mount options
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=4vDd
-----END PGP SIGNATURE-----
Merge tag 'ecryptfs-3.6-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs
Pull ecryptfs fixes from Tyler Hicks:
- Fixes a bug when the lower filesystem mount options include 'acl',
but the eCryptfs mount options do not
- Cleanups in the messaging code
- Better handling of empty files in the lower filesystem to improve
usability. Failed file creations are now cleaned up and empty lower
files are converted into eCryptfs during open().
- The write-through cache changes are being reverted due to bugs that
are not easy to fix. Stability outweighs the performance
enhancements here.
- Improvement to the mount code to catch unsupported ciphers specified
in the mount options
* tag 'ecryptfs-3.6-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
eCryptfs: check for eCryptfs cipher support at mount
eCryptfs: Revert to a writethrough cache model
eCryptfs: Initialize empty lower files when opening them
eCryptfs: Unlink lower inode when ecryptfs_create() fails
eCryptfs: Make all miscdev functions use daemon ptr in file private_data
eCryptfs: Remove unused messaging declarations and function
eCryptfs: Copy up POSIX ACL and read-only flags from lower mount
Pull CIFS update from Steve French:
"Adds SMB2 rmdir/mkdir capability to the SMB2/SMB2.1 support in cifs.
I am holding up a few more days on merging the remainder of the
SMB2/SMB2.1 enablement although it is nearing review completion, in
order to address some review comments from Jeff Layton on a few of the
subsequent SMB2 patches, and also to debug an unrelated cifs problem
that Pavel discovered."
* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
CIFS: Add SMB2 support for rmdir
CIFS: Move rmdir code to ops struct
CIFS: Add SMB2 support for mkdir operation
CIFS: Separate protocol specific part from mkdir
CIFS: Simplify cifs_mkdir call
Borislav Petkov reports that the new warning added in commit
88fdf75d1b ("mm: warn if pg_data_t isn't initialized with zero")
triggers for him, and it is the node_start_pfn field that has already
been initialized once.
The call trace looks like this:
x86_64_start_kernel ->
x86_64_start_reservations ->
start_kernel ->
setup_arch ->
paging_init ->
zone_sizes_init ->
free_area_init_nodes ->
free_area_init_node
and (with the warning replaced by debug output), Borislav sees
On node 0 totalpages: 4193848
DMA zone: 64 pages used for memmap
DMA zone: 6 pages reserved
DMA zone: 3890 pages, LIFO batch:0
DMA32 zone: 16320 pages used for memmap
DMA32 zone: 798464 pages, LIFO batch:31
Normal zone: 52736 pages used for memmap
Normal zone: 3322368 pages, LIFO batch:31
free_area_init_node: pgdat->node_start_pfn: 4423680 <----
On node 1 totalpages: 4194304
Normal zone: 65536 pages used for memmap
Normal zone: 4128768 pages, LIFO batch:31
free_area_init_node: pgdat->node_start_pfn: 8617984 <----
On node 2 totalpages: 4194304
Normal zone: 65536 pages used for memmap
Normal zone: 4128768 pages, LIFO batch:31
free_area_init_node: pgdat->node_start_pfn: 12812288 <----
On node 3 totalpages: 4194304
Normal zone: 65536 pages used for memmap
Normal zone: 4128768 pages, LIFO batch:31
so remove the bogus warning for now to avoid annoying people. Minchan
Kim is looking at it.
Reported-by: Borislav Petkov <bp@amd64.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/arm/mach-mmp/gplugd.c:195:13: error: ‘MMP_NR_IRQS’ undeclared here
(not in a function)
make[1]: *** [arch/arm/mach-mmp/gplugd.o] Error 1
Include <mach/irqs.h> to fix this issue.
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
The comment was wrongly referring to Armada 370 while the file is
related to Armada XP.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
The only way to write LATCHED registers to write LATCH_BIT to LATCH register,
that will latch COUNTER into LATCHED.e.g.
writel_relaxed(SIRFSOC_TIMER_LATCH_BIT, sirfsoc_timer_base +
SIRFSOC_TIMER_LATCH);
Writing values to LATCHED registers directly is useless at all.
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Avoid crashing if the crypto key payload was NULL, as when it was not correctly
allocated and initialized. Also, avoid leaking it.
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Alex Elder <elder@inktank.com>
A few updates for issues discovered during the merge window, the main
one being the fix for the issues with defaulting to use of regmap
without properly checking if there was I/O in place already.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)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=pxAa
-----END PGP SIGNATURE-----
Merge tag 'asoc-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Additional updates for 3.6
A few updates for issues discovered during the merge window, the main
one being the fix for the issues with defaulting to use of regmap
without properly checking if there was I/O in place already.
The initial ->atomic_open op was carried over from the old intent code,
which was incomplete and didn't really work. Replace it with a fresh
method. In particular:
* always attempt to do an atomic open+lookup, both for the create case
and for lookups of existing files.
* fix symlink handling by returning 1 to the VFS so that we can follow
the link to its destination. This fixes a longstanding ceph bug (#2392).
Signed-off-by: Sage Weil <sage@inktank.com>
_ios_obj() is accessed by group_index not device_table index.
The oc->comps array is only a group_full of devices at a time
it is not like ore_comp_dev() which is indexed by a global
device_table index.
This did not BUG until now because exofs only uses a single
COMP for all devices. But with other FSs like PanFS this is
not true.
This bug was only in the write_path, all other users were
using it correctly
[This is a bug since 3.2 Kernel]
CC: Stable Tree <stable@kernel.org>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
exofs_max_io_pages should just use the ORE's
calculated layout->max_io_length,
And avoid unnecessary BUGs, calculations made here were
also a layering violation.
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
It is very common for the end of the file to be unaligned on
stripe size. But since we know it's beyond file's end then
the XOR should be preformed with all zeros.
Old code used to just read zeros out of the OSD devices, which is a great
waist. But what scares me more about this situation is that, we now have
pages attached to the file's mapping that are beyond i_size. I don't
like the kind of bugs this calls for.
Fix both birds, by returning a global ZERO_PAGE, if offset is beyond
i_size.
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Exofs has the '->write_super()' handler and makes some use of the '->s_dirt'
superblock flag, but it really needs neither of them because it never sets
's_dirt' to one which means the VFS never calls its '->write_super()' handler.
Thus, remove both.
Note, I am trying to remove both 's_dirt' and 'write_super()' from VFS
altogether once all users are gone.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
readpage_strip can be called from several code paths all of which
require that the page be locked before any operations are carried
out.
Since we export the exofs_readpage callback to the VFS, add a
BUG_ON to check for PageLocked(page) to make sure that this
understanding is never compromised.
Signed-off-by: Kautuk Consul <consul.kautuk@gmail.com>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Check if the chip has provided a write operation (which is mandatory for
I/O) rather than looking for control data as some of the MFDs use a global
for this. Also skip the attempt if there's no regmap available by device
in case things get confused by the attempt to default.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Lenovo Thinkpad T530 with ALC269VC codec has a dock port but BIOS
doesn't set up the pins properly. Enable the pins as well as on
Thinkpad X230 Tablet.
Reported-and-tested-by: Mario <anyc@hadiko.de>
Cc: <stable@vger.kernel.org> [v3.2+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
setup-sh7722.c defines several objects, whose types are defined in
sh_dma.h, so, it has to be included explicitly.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Pull MIPS updates from Ralf Baechle:
"The lion share of this pull request are fixes for clk-related breakage
caused by other changes during this merge window. For some platforms
the fix was as simple as selecting HAVE_CLK, for others like the
Loongson 2 significant restructuring was required.
The remainder are changes required to get the Lantiq code to work
again."
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: Loongson 2: Sort out clock managment.
MIPS: Loongson 1: more clk support and add select HAVE_CLK
MIPS: txx9: Fix redefinition of clk_* by adding select HAVE_CLK
MIPS: BCM63xx: Fix redefinition of clk_* by adding select HAVE_CLK
MIPS: AR7: Fix redefinition of clk_* by adding select HAVE_CLK
MIPS: Lantiq: Platform specific CLK fixup
MIPS: Lantiq: Add device_tree_init function
MIPS: Lantiq: Fix interface clock and PCI control register offset
Pull UML fixes from Richard Weinberger:
"This patch set contains mostly fixes and cleanups. The UML tty driver
uses now tty_port and is no longer broken like hell :-)"
* 'for-linus-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
um: Add arch/x86/um to MAINTAINERS
um: pass siginfo to guest process
um: fix ubd_file_size for read-only files
um: pull interrupt_end() into userspace()
um: split syscall_trace(), pass pt_regs to it
um: switch UPT_SET_RETURN_VALUE and regs_return_value to pt_regs
um: set BLK_CGROUP=y in defconfig
um: remove count_lock
um: fully use tty_port
um: Remove dead code
um: remove line_ioctl()
TTY: um/line, use tty from tty_port
TTY: um/line, add tty_port
Pull ARM DMA engine updates from Russell King:
"This looks scary at first glance, but what it is is:
- a rework of the sa11x0 DMA engine driver merged during the previous
cycle, to extract a common set of helper functions for DMA engine
implementations.
- conversion of amba-pl08x.c to use these helper functions.
- addition of OMAP DMA engine driver (using these helper functions),
and conversion of some of the OMAP DMA users to use DMA engine.
Nothing in the helper functions is ARM specific, so I hope that other
implementations can consolidate some of their code by making use of
these helpers.
This has been sitting in linux-next most of the merge cycle, and has
been tested by several OMAP folk. I've tested it on sa11x0 platforms,
and given it my best shot on my broken platforms which have the
amba-pl08x controller.
The last point is the addition to feature-removal-schedule.txt, which
will have a merge conflict. Between myself and TI, we're planning to
remove the old TI DMA implementation next year."
Fix up trivial add/add conflicts in Documentation/feature-removal-schedule.txt
and drivers/dma/{Kconfig,Makefile}
* 'dmaengine' of git://git.linaro.org/people/rmk/linux-arm: (53 commits)
ARM: 7481/1: OMAP2+: omap2plus_defconfig: enable OMAP DMA engine
ARM: 7464/1: mmc: omap_hsmmc: ensure probe returns error if DMA channel request fails
Add feature removal of old OMAP private DMA implementation
mtd: omap2: remove private DMA API implementation
mtd: omap2: add DMA engine support
spi: omap2-mcspi: remove private DMA API implementation
spi: omap2-mcspi: add DMA engine support
ARM: omap: remove mmc platform data dma_mask and initialization
mmc: omap: remove private DMA API implementation
mmc: omap: add DMA engine support
mmc: omap_hsmmc: remove private DMA API implementation
mmc: omap_hsmmc: add DMA engine support
dmaengine: omap: add support for cyclic DMA
dmaengine: omap: add support for setting fi
dmaengine: omap: add support for returning residue in tx_state method
dmaengine: add OMAP DMA engine driver
dmaengine: sa11x0-dma: add cyclic DMA support
dmaengine: sa11x0-dma: fix DMA residue support
dmaengine: PL08x: ensure all descriptors are freed when channel is released
dmaengine: PL08x: get rid of write only pool_ctr and free_txd locking
...
Pull ARM audit/signal updates from Russell King:
"ARM audit/signal handling updates from Al and Will. This improves on
the work Viro did last merge window, and sorts out some of the issues
found with that work."
* 'audit' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7475/1: sys_trace: allow all syscall arguments to be updated via ptrace
ARM: 7474/1: get rid of TIF_SYSCALL_RESTARTSYS
ARM: 7473/1: deal with handlerless restarts without leaving the kernel
ARM: 7472/1: pull all work_pending logics into C function
ARM: 7471/1: Revert "7442/1: Revert "remove unused restart trampoline""
ARM: 7470/1: Revert "7443/1: Revert "new way of handling ERESTART_RESTARTBLOCK""
Pull ARM fixes from Russell King:
"This fixes various issues found during July"
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7479/1: mm: avoid NULL dereference when flushing gate_vma with VIVT caches
ARM: Fix undefined instruction exception handling
ARM: 7480/1: only call smp_send_stop() on SMP
ARM: 7478/1: errata: extend workaround for erratum #720789
ARM: 7477/1: vfp: Always save VFP state in vfp_pm_suspend on UP
ARM: 7476/1: vfp: only clear vfp state for current cpu in vfp_pm_suspend
ARM: 7468/1: ftrace: Trace function entry before updating index
ARM: 7467/1: mutex: use generic xchg-based implementation for ARMv6+
ARM: 7466/1: disable interrupt before spinning endlessly
ARM: 7465/1: Handle >4GB memory sizes in device tree and mem=size@start option
Artem Bityutskiy