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* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
block: Don't count_vm_events for discard bio in submit_bio.
cfq: fix recursive call in cfq_blkiocg_update_completion_stats()
cfq-iosched: Fixed boot warning with BLK_CGROUP=y and CFQ_GROUP_IOSCHED=n
cfq: Don't allow queue merges for queues that have no process references
block: fix DISCARD_BARRIER requests
cciss: set SCSI max cmd len to 16, as default is wrong
cpqarray: fix two more wrong section type
cpqarray: fix wrong __init type on pci probe function
drbd: Fixed a race between disk-attach and unexpected state changes
writeback: fix pin_sb_for_writeback
writeback: add missing requeue_io in writeback_inodes_wb
writeback: simplify and split bdi_start_writeback
writeback: simplify wakeup_flusher_threads
writeback: fix writeback_inodes_wb from writeback_inodes_sb
writeback: enforce s_umount locking in writeback_inodes_sb
writeback: queue work on stack in writeback_inodes_sb
writeback: fix writeback completion notifications
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list_for_each_entry_safe is not suitable to protect against concurrent
modification of the list. 6754af6 introduced a race in sb walking.
list_for_each_entry can use the trick of pinning the current entry in
the list before we drop and retake the lock because it subsequently
follows cur->next. However list_for_each_entry_safe saves n=cur->next
for following before entering the loop body, so when the lock is
dropped, n may be deleted.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: Frank Mayhar <fmayhar@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
tracing: Fix undeclared ENOSYS in include/linux/tracepoint.h
perf record: prevent kill(0, SIGTERM);
perf session: Remove threads from tree on PERF_RECORD_EXIT
perf/tracing: Fix regression of perf losing kprobe events
perf_events: Fix Intel Westmere event constraints
perf record: Don't call newt functions when not initialized
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
sched: Prevent compiler from optimising the sched_avg_update() loop
sched: Fix over-scheduling bug
sched: Fix PROVE_RCU vs cpu_cgroup
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (52 commits)
phylib: Add autoload support for the LXT973 phy.
ISDN: hysdn, fix potential NULL dereference
vxge: fix memory leak in vxge_alloc_msix() error path
isdn/gigaset: correct CAPI connection state storage
isdn/gigaset: encode HLC and BC together
isdn/gigaset: correct CAPI DATA_B3 Delivery Confirmation
isdn/gigaset: correct CAPI voice connection encoding
isdn/gigaset: honor CAPI application's buffer size request
cpmac: do not leak struct net_device on phy_connect errors
smc91c92_cs: fix the problem that lan & modem does not work simultaneously
ipv6: fix NULL reference in proxy neighbor discovery
Bluetooth: Bring back var 'i' increment
xfrm: check bundle policy existance before dereferencing it
sky2: enable rx/tx in sky2_phy_reinit()
cnic: Disable statistics initialization for eth clients that do not support statistics
net: add dependency on fw class module to qlcnic and netxen_nic
snmp: fix SNMP_ADD_STATS()
hso: remove setting of low_latency flag
udp: Fix bogus UFO packet generation
lasi82596: fix netdev_mc_count conversion
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commit aa2ea0586d9d (tcp: fix outsegs stat for TSO segments) incorrectly
assumed SNMP_ADD_STATS() was used from BH context.
Fix this using mib[!in_softirq()] instead of mib[0]
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The header file include/linux/tracepoint.h may be included without
include/linux/errno.h and then the compiler will fail on building for
undelcared ENOSYS. This patch fixes this problem via including <linux/errno.h>
to include/linux/tracepoint.h.
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
LKML-Reference: <1277118549-622-1-git-send-email-wuzhangjin@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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This was a very hard to trigger race condition.
If we got a state packet from the peer, after drbd_nl_disk() has
already changed the disk state to D_NEGOTIATING but
after_state_ch() was not yet run by the worker, then receive_state()
might called drbd_sync_handshake(), which in turn crashed
when accessing p_uuid.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
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Conflicts:
drivers/acpi/sleep.c
Signed-off-by: Len Brown <len.brown@intel.com>
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This feature is optional and is enabled if the BIOS requests any
Windows OSI strings. It can also be enabled by the host OS.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Was incorrectly AE_WAKE_ONLY_GPE.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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ACPICA uses acpi_hw_write_gpe_enable_reg() to re-enable a GPE after
an event signaled by it has been handled. However, this function
writes the entire GPE enable mask to the GPE's enable register which
may not be correct. Namely, if one of the other GPEs in the same
register was previously enabled by acpi_enable_gpe() and subsequently
disabled using acpi_set_gpe(), acpi_hw_write_gpe_enable_reg() will
re-enable it along with the target GPE.
To fix this issue rework acpi_hw_write_gpe_enable_reg() so that it
calls acpi_hw_low_set_gpe() with a special action value,
ACPI_GPE_COND_ENABLE, that will make it only enable the GPE if the
corresponding bit in its register's enable_for_run mask is set.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
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ACPICA uses acpi_ev_enable_gpe() for enabling GPEs at the low level,
which is incorrect, because this function only enables the GPE if the
corresponding bit in its enable register's enable_for_run mask is set.
This causes acpi_set_gpe() to work incorrectly if used for enabling
GPEs that were not previously enabled with acpi_enable_gpe(). As a
result, among other things, wakeup-only GPEs are never enabled by
acpi_enable_wakeup_device(), so the devices that use them are unable
to wake up the system.
To fix this issue remove acpi_ev_enable_gpe() and its counterpart
acpi_ev_disable_gpe() and replace acpi_hw_low_disable_gpe() with
acpi_hw_low_set_gpe() that will be used instead to manipulate GPE
enable bits at the low level. Make the users of acpi_ev_enable_gpe()
and acpi_ev_disable_gpe() call acpi_hw_low_set_gpe() instead and
make sure that GPE enable masks are only updated by acpi_enable_gpe()
and acpi_disable_gpe() when GPE reference counters change from 0
to 1 and from 1 to 0, respectively.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
wimax/i2400m: fix missing endian correction read in fw loader
net8139: fix a race at the end of NAPI
pktgen: Fix accuracy of inter-packet delay.
pkt_sched: gen_estimator: add a new lock
net: deliver skbs on inactive slaves to exact matches
ipv6: fix ICMP6_MIB_OUTERRORS
r8169: fix mdio_read and update mdio_write according to hw specs
gianfar: Revive the driver for eTSEC devices (disable timestamping)
caif: fix a couple range checks
phylib: Add support for the LXT973 phy.
net: Print num_rx_queues imbalance warning only when there are allocated queues
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bdi_start_writeback now never gets a superblock passed, so we can just remove
that case. And to further untangle the code and flatten the call stack
split it into two trivial helpers for it's two callers.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
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Currently, the accelerated receive path for VLAN's will
drop packets if the real device is an inactive slave and
is not one of the special pkts tested for in
skb_bond_should_drop(). This behavior is different then
the non-accelerated path and for pkts over a bonded vlan.
For example,
vlanx -> bond0 -> ethx
will be dropped in the vlan path and not delivered to any
packet handlers at all. However,
bond0 -> vlanx -> ethx
and
bond0 -> ethx
will be delivered to handlers that match the exact dev,
because the VLAN path checks the real_dev which is not a
slave and netif_recv_skb() doesn't drop frames but only
delivers them to exact matches.
This patch adds a sk_buff flag which is used for tagging
skbs that would previously been dropped and allows the
skb to continue to skb_netif_recv(). Here we add
logic to check for the deliver_no_wcard flag and if it
is set only deliver to handlers that match exactly. This
makes both paths above consistent and gives pkt handlers
a way to identify skbs that come from inactive slaves.
Without this patch in some configurations skbs will be
delivered to handlers with exact matches and in others
be dropped out right in the vlan path.
I have tested the following 4 configurations in failover modes
and load balancing modes.
# bond0 -> ethx
# vlanx -> bond0 -> ethx
# bond0 -> vlanx -> ethx
# bond0 -> ethx
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vlanx -> --
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
tracing: Fix null pointer deref with SEND_SIG_FORCED
perf: Fix signed comparison in perf_adjust_period()
powerpc/oprofile: fix potential buffer overrun in op_model_cell.c
perf symbols: Set the DSO long name when using symbol_conf.vmlinux_name
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Saving platform non-volatile state may be required for suspend to RAM as
well as hibernation. Move it to more generic code.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Tested-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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10, 233 is allocated officially to /dev/kmview which is shipping in
Ubuntu and Debian distributions. vhost_net seem to have borrowed it
without making a proper request and this causes regressions in the other
distributions.
vhost_net can use a dynamic minor so use that instead. Also update the
file with a comment to try and avoid future misunderstandings.
cc: stable@kernel.org
Signed-off-by: Alan Cox <device@lanana.org>
[ We should have caught this before 2.6.34 got released. - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (23 commits)
drm/radeon: don't poll tv dac if crtc2 is in use.
drm/radeon: reset i2c valid to avoid incorrect tv-out polling.
drm/nv50: fix iommu errors caused by device reading from address 0
drm/nouveau: off by one in init_i2c_device_find()
nouveau: off by one in nv50_gpio_location()
drm/nouveau: completely fail init if we fail to map the PRAMIN BAR
drm/nouveau: match U/DP script against SOR link
drm/radeon/kms/pm: resurrect printing power states
drm/radeon/kms: add trivial debugging for voltage
drm/radeon/kms/r600+: use voltage from requested clock mode (v3)
drm/radeon/kms/pm: track current voltage (v2)
drm/radeon/kms/pm: Disable voltage adjust on RS780/RS880
drm/radeon/kms: fix typo in printing the HPD info
drm/radeon/kms/pm: add mid profile
drm/radeon/kms/pm: Misc fixes
drm/radeon/kms/combios: fix typo in voltage fix
drm/radeon/kms/evergreen: set accel_enabled
drm/vmwgfx: return -EFAULT for copy_to_user errors
drm/drm_crtc: return -EFAULT on copy_to_user errors
drm/fb: use printk to print out the switching to text mode error.
...
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If a filesystem writes more than one page in ->writepage, write_cache_pages
fails to notice this and continues to attempt writeback when wbc->nr_to_write
has gone negative - this trace was captured from XFS:
wbc_writeback_start: towrt=1024
wbc_writepage: towrt=1024
wbc_writepage: towrt=0
wbc_writepage: towrt=-1
wbc_writepage: towrt=-5
wbc_writepage: towrt=-21
wbc_writepage: towrt=-85
This has adverse effects on filesystem writeback behaviour. write_cache_pages()
needs to terminate after a certain number of pages are written, not after a
certain number of calls to ->writepage are made. This is a regression
introduced by 17bc6c30cf6bfffd816bdc53682dd46fc34a2cf4 ("vfs: Add
no_nrwrite_index_update writeback control flag"), but cannot be reverted
directly due to subsequent bug fixes that have gone in on top of it.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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BUG: unable to handle kernel NULL pointer dereference at
0000000000000006
IP: [<ffffffff8107bd37>] ftrace_raw_event_signal_generate+0x87/0x140
TP_STORE_SIGINFO() forgets about SEND_SIG_FORCED, fix.
We should probably export is_si_special() and change TP_STORE_SIGINFO()
to use it in the longer term.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Masami Hiramatsu <mhiramat@redhat.com>
Cc: 2.6.33.x-2.6.34.x <stable@kernel.org>
LKML-Reference: <20100603213409.GA8307@redhat.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
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PROVE_RCU has a few issues with the cpu_cgroup because the scheduler
typically holds rq->lock around the css rcu derefs but the generic
cgroup code doesn't (and can't) know about that lock.
Provide means to add extra checks to the css dereference and use that
in the scheduler to annotate its users.
The addition of rq->lock to these checks is correct because the
cgroup_subsys::attach() method takes the rq->lock for each task it
moves, therefore by holding that lock, we ensure the task is pinned to
the current cgroup and the RCU derefence is valid.
That leaves one genuine race in __sched_setscheduler() where we used
task_group() without holding any of the required locks and thus raced
with the cgroup code. Solve this by moving the check under the
appropriate lock.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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This is needed to enable accel in the ddx. However,
due to a bug in older versions of the ddx, it relies
on accel being disabled in order to load properly on
evergreen chips. To maintain compatility, we add a new
get accel param and call that from the ddx. The old one
always returns false for evergreen cards.
[this fixes a regression with older userspaces on newer kernels].
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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JMB362 is a new variant of jmicron controller which is similar to
JMB360 but has two SATA ports instead of one. As there is no PATA
port, single function AHCI mode can be used as in JMB360. Add pci
quirk for JMB362.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Aries Lee <arieslee@jmicron.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (30 commits)
X25: remove duplicated #include
tcp: use correct net ns in cookie_v4_check()
rps: tcp: fix rps_sock_flow_table table updates
ppp_generic: fix multilink fragment sizes
syncookies: remove Kconfig text line about disabled-by-default
ixgbe: only check pfc bits in hang logic if pfc is enabled
net: check for refcount if pop a stacked dst_entry
ixgbe: return IXGBE_ERR_RAR_INDEX when out of range
act_pedit: access skb->data safely
sfc: Store port number in net_device::dev_id
epic100: Test __BIG_ENDIAN instead of (non-existent) CONFIG_BIG_ENDIAN
tehuti: return -EFAULT on copy_to_user errors
isdn/kcapi: return -EFAULT on copy_from_user errors
e1000e: change logical negate to bitwise
sfc: Get port number from CS_PORT_NUM, not PCI function number
cls_u32: use skb_header_pointer() to dereference data safely
TCP: tcp_hybla: Fix integer overflow in slow start increment
act_nat: fix the wrong checksum when addr isn't in old_addr/mask
net/fec: fix pm to survive to suspend/resume
korina: count RX DMA OVR as rx_fifo_error
...
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
Minix: Clean up left over label
fix truncate inode time modification breakage
fix setattr error handling in sysfs, configfs
fcntl: return -EFAULT if copy_to_user fails
wrong type for 'magic' argument in simple_fill_super()
fix the deadlock in qib_fs
mqueue doesn't need make_bad_inode()
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* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
module: fix bne2 "gave up waiting for init of module libcrc32c"
module: verify_export_symbols under the lock
module: move find_module check to end
module: make locking more fine-grained.
module: Make module sysfs functions private.
module: move sysfs exposure to end of load_module
module: fix kdb's illicit use of struct module_use.
module: Make the 'usage' lists be two-way
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These were placed in the header in ef665c1a06 to get the various
SYSFS/MODULE config combintations to compile.
That may have been necessary then, but it's not now. These functions
are all local to module.c.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
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Linus changed the structure, and luckily this didn't compile any more.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Martin Hicks <mort@sgi.com>
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When adding a module that depends on another one, we used to create a
one-way list of "modules_which_use_me", so that module unloading could
see who needs a module.
It's actually quite simple to make that list go both ways: so that we
not only can see "who uses me", but also see a list of modules that are
"used by me".
In fact, we always wanted that list in "module_unload_free()": when we
unload a module, we want to also release all the other modules that are
used by that module. But because we didn't have that list, we used to
first iterate over all modules, and then iterate over each "used by me"
list of that module.
By making the list two-way, we simplify module_unload_free(), and it
allows for some trivial fixes later too.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (cleaned & rebased)
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xfrm triggers a warning if dst_pop() drops a refcount
on a noref dst. This patch changes dst_pop() to
skb_dst_pop(). skb_dst_pop() drops the refcnt only
on a refcounted dst. Also we don't clone the child
dst_entry, so it is not refcounted and we can use
skb_dst_set_noref() in xfrm_output_one().
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (23 commits)
sh: Make intc messages consistent via pr_fmt.
sh: make sure static declaration on ms7724se
sh: make sure static declaration on mach-migor
sh: make sure static declaration on mach-ecovec24
sh: make sure static declaration on mach-ap325rxa
clocksource: sh_cmt: compute mult and shift before registration
clocksource: sh_tmu: compute mult and shift before registration
sh: PIO disabling for x3proto and urquell.
sh: mach-sdk7786: conditionally disable PIO support.
sh: support for platforms without PIO.
usb: r8a66597-hcd pio to mmio accessor conversion.
usb: gadget: r8a66597-udc pio to mmio accessor conversion.
usb: gadget: m66592-udc pio to mmio accessor conversion.
sh: add romImage MMCIF boot for sh7724 and Ecovec V2
sh: add boot code to MMCIF driver header
sh: prepare MMCIF driver header file
sh: allow romImage data between head.S and the zero page
sh: Add support MMCIF for ecovec
sh: remove duplicated #include
input: serio: disable i8042 for non-cayman sh platforms.
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/i7core
* 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/i7core: (83 commits)
i7core_edac: Better describe the supported devices
Add support for Westmere to i7core_edac driver
i7core_edac: don't free on success
i7core_edac: Add support for X5670
Always call i7core_[ur]dimm_check_mc_ecc_err
i7core_edac: fix memory leak of i7core_dev
EDAC: add __init to i7core_xeon_pci_fixup
i7core_edac: Fix wrong device id for channel 1 devices
i7core: add support for Lynnfield alternate address
i7core_edac: Add initial support for Lynnfield
i7core_edac: do not export static functions
edac: fix i7core build
edac: i7core_edac produces undefined behaviour on 32bit
i7core_edac: Use a more generic approach for probing PCI devices
i7core_edac: PCI device is called NONCORE, instead of NOCORE
i7core_edac: Fix ringbuffer maxsize
i7core_edac: First store, then increment
i7core_edac: Better parse "any" addrmask
i7core_edac: Use a lockless ringbuffer
edac: Create an unique instance for each kobj
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'v4l_for_2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (87 commits)
V4L/DVB: ivtv: Timing tweaks and code re-order to try and improve stability
V4L/DVB: ivtv: Avoid accidental video standard change
V4L/DVB: ivtvfb : Module load / unload fixes
V4L/DVB: cx2341x: Report correct temporal setting for log-status
V4L/DVB: cx18, cx23885, v4l2 doc, MAINTAINERS: Update Andy Walls' email address
V4L/DVB: drivers/media: Eliminate a NULL pointer dereference
V4L/DVB: dvb-core: Fix ULE decapsulation bug
V4L/DVB: Bug fix: make IR work again for dm1105
V4L/DVB: media/IR: nec-decoder needs to select BITREV
V4L/DVB: video/saa7134: change dprintk() to i2cdprintk()
V4L/DVB: video/saa7134: remove duplicate break
V4L/DVB: IR/imon: add auto-config for 0xffdc rf device
V4L/DVB: IR/imon: clean up usage of bools
V4L/DVB: em28xx: remove unneeded null checks
V4L/DVB: ngene: remove unused #include <linux/version.h>
V4L/DVB: ak881x needs slab.h
V4L/DVB: FusionHDTV: Use quick reads for I2C IR device probing
V4L/DVB: Technotrend S2-3200 ships with a TT 1500 remote
V4L/DVB: drivers/media: Use kzalloc
V4L/DVB: m920x: Select simple tuner
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* 'for-linus' of git://git.kernel.dk/linux-2.6-block: (27 commits)
block: make blk_init_free_list and elevator_init idempotent
block: avoid unconditionally freeing previously allocated request_queue
pipe: change /proc/sys/fs/pipe-max-pages to byte sized interface
pipe: change the privilege required for growing a pipe beyond system max
pipe: adjust minimum pipe size to 1 page
block: disable preemption before using sched_clock()
cciss: call BUG() earlier
Preparing 8.3.8rc2
drbd: Reduce verbosity
drbd: use drbd specific ratelimit instead of global printk_ratelimit
drbd: fix hang on local read errors while disconnected
drbd: Removed the now empty w_io_error() function
drbd: removed duplicated #includes
drbd: improve usage of MSG_MORE
drbd: need to set socket bufsize early to take effect
drbd: improve network latency, TCP_QUICKACK
drbd: Revert "drbd: Create new current UUID as late as possible"
brd: support discard
Revert "writeback: fix WB_SYNC_NONE writeback from umount"
Revert "writeback: ensure that WB_SYNC_NONE writeback with sb pinned is sync"
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of u_long
task_struct->pesonality is "unsigned int", but sys_personality() paths use
"unsigned long pesonality". This means that every assignment or
comparison is not right. In particular, if this argument does not fit
into "unsigned int" __set_personality() changes the caller's personality
and then sys_personality() returns -EINVAL.
Turn this argument into "unsigned int" and avoid overflows. Obviously,
this is the user-visible change, we just ignore the upper bits. But this
can't break the sane application.
There is another thing which can confuse the poorly written applications.
User-space thinks that this syscall returns int, not long. This means
that the returned value can be negative and look like the error code. But
note that libc won't be confused and thus errno won't be set, and with
this patch the user-space can never get -1 unless sys_personality() really
fails. And, most importantly, the negative RET != -1 is only possible if
that app previously called personality(RET).
Pointed-out-by: Wenming Zhang <wezhang@redhat.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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It's used to superblock ->s_magic, which is unsigned long.
Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Reviewed-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
CC: stable@kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: hda-intel - fix wallclk variable update and condition
ALSA: asihpi - Fix uninitialized variable
ALSA: hda: Use LPIB for ASUS M2V
usb/gadget: Replace the old USB audio FU definitions in f_audio.c
ASoC: MX31ads sound support should depend on MACH_MX31ADS_WM1133_EV1
ASoC: Add missing Kconfig entry for Phytec boards
ALSA: usb-audio: export UAC2 clock selectors as mixer controls
ALSA: usb-audio: clean up find_audio_control_unit()
ALSA: usb-audio: add UAC2 sepecific Feature Unit controls
ALSA: usb-audio: unify constants from specification
ALSA: usb-audio: parse clock topology of UAC2 devices
ALSA: usb-audio: fix selector unit string index accessor
include/linux/usb/audio-v2.h: add more UAC2 details
ALSA: usb-audio: support partially write-protected UAC2 controls
ALSA: usb-audio: UAC2: clean up parsing of bmaControls
ALSA: hda: Use LPIB for another mainboard
ALSA: hda: Use mb31 quirk for an iMac model
ALSA: hda: Use LPIB for an ASUS device
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git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
libata: implement on-demand HPA unlocking
libata: use the enlarged capacity after late HPA unlock
SCSI: implement sd_unlock_native_capacity()
libata-sff: trivial corrections to Kconfig help text
sata_nv: don't diddle with nIEN on mcp55
sata_via: magic vt6421 fix for transmission problems w/ WD drives
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
sched, trace: Fix sched_switch() prev_state argument
sched: Fix wake_affine() vs RT tasks
sched: Make sure timers have migrated before killing the migration_thread
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
perf: Fix crash in swevents
perf buildid-list: Fix --with-hits event processing
perf scripts python: Give field dict to unhandled callback
perf hist: fix objdump output parsing
perf-record: Check correct pid when forking
perf: Do the comm inheritance per thread in event__process_task
perf: Use event__process_task from perf sched
perf: Process comm events by tid
blktrace: Fix new kernel-doc warnings
perf_events: Fix unincremented buffer base on partial copy
perf_events: Fix event scheduling issues introduced by transactional API
perf_events, trace: Fix perf_trace_destroy(), mutex went missing
perf_events, trace: Fix probe unregister race
perf_events: Fix races in group composition
perf_events: Fix races and clean up perf_event and perf_mmap_data interaction
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (41 commits)
drm/radeon/kms: make sure display hw is disabled when suspending
drm/vmwgfx: Allow userspace to change default layout. Bump minor.
drm/vmwgfx: Fix framebuffer modesetting
drm/vmwgfx: Fix vga save / restore with display topology.
vgaarb: use MIT license
vgaarb: convert pr_devel() to pr_debug()
drm: fix typos in Linux DRM Developer's Guide
drm/radeon/kms/pm: voltage fixes
drm/radeon/kms/pm: radeon_set_power_state fixes
drm/radeon/kms/pm: patch default power state with default clocks/voltages on r6xx+
drm/radeon/kms/pm: enable SetVoltage on r7xx/evergreen
drm/radeon/kms/pm: add support for SetVoltage cmd table (V2)
drm/radeon/kms/evergreen: add initial CS parser
drm/kms: disable/enable poll around switcheroo on/off
drm/nouveau: fixup confusion over which handle the DSM is hanging off.
drm/nouveau: attempt to get bios from ACPI v3
drm/nv50: cast IGP memory location to u64 before shifting
drm/ttm: Fix ttm_page_alloc.c
drm/ttm: Fix cached TTM page allocation.
drm/vmwgfx: Remove some leftover debug messages.
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This changes the interface to be based on bytes instead. The API
matches that of F_SETPIPE_SZ in that it rounds up the passed in
size so that the resulting page array is a power-of-2 in size.
The proc file is renamed to /proc/sys/fs/pipe-max-size to
reflect this change.
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
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The host may change the layout and, since the change is
communicated to the master, the master needs a way to
communicate the change to the kernel driver.
The minor version number is bumped to advertize the
availability of this feature.
Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Signed-off-by: Tiago Vignatti <tiago.vignatti@nokia.com>
Cc: Henry Zhao <Henry.Zhao@Sun.COM>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Implement ata_scsi_unlock_native_capacity() which will be called
through SCSI layer when block layer notices that partitions on a
device extend beyond the end of the device. It requests EH to unlock
HPA, waits for completion and returns the current device capacity.
This allows libata to unlock HPA on demand instead of having to decide
whether to unlock upfront. Unlocking on demand is safer than
unlocking by upfront because some BIOSes write private data to the
area beyond HPA limit. This was suggested by Ben Hutchings.
Signed-off-by: Tejun Heo <tj@kernel.org>
Suggested-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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