Linus Torvalds [Thu, 9 Apr 2009 17:37:28 +0000 (10:37 -0700)]
Merge branch 'sched-fixes-for-linus' of git://git./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: do not count frozen tasks toward load
sched: refresh MAINTAINERS entry
sched: Print sched_group::__cpu_power in sched_domain_debug
cpuacct: add per-cgroup utime/stime statistics
posixtimers, sched: Fix posix clock monotonicity
sched_rt: don't allocate cpumask in fastpath
cpuacct: make cpuacct hierarchy walk in cpuacct_charge() safe when rcupreempt is used -v2
Paul Mundt [Thu, 9 Apr 2009 17:36:54 +0000 (10:36 -0700)]
sh: Add support for DMA API debugging.
This wires up support for the generic DMA API debugging.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Linus Torvalds [Thu, 9 Apr 2009 17:35:30 +0000 (10:35 -0700)]
Merge branches 'core-fixes-for-linus', 'irq-fixes-for-linus' and 'timers-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
printk: fix wrong format string iter for printk
futex: comment requeue key reference semantics
* 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
irq: fix cpumask memory leak on offstack cpumask kernels
* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
posix-timers: fix RLIMIT_CPU && setitimer(CPUCLOCK_PROF)
posix-timers: fix RLIMIT_CPU && fork()
timers: add missing kernel-doc
Thomas Gleixner [Thu, 9 Apr 2009 17:18:47 +0000 (18:18 +0100)]
MN10300: Convert obsolete no_irq_type to no_irq_chip
Convert the last remaining users to no_irq_chip.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Heiko Carstens [Thu, 9 Apr 2009 16:48:34 +0000 (18:48 +0200)]
mutex: have non-spinning mutexes on s390 by default
Impact: performance regression fix for s390
The adaptive spinning mutexes will not always do what one would expect on
virtualized architectures like s390. Especially the cpu_relax() loop in
mutex_spin_on_owner might hurt if the mutex holding cpu has been scheduled
away by the hypervisor.
We would end up in a cpu_relax() loop when there is no chance that the
state of the mutex changes until the target cpu has been scheduled again by
the hypervisor.
For that reason we should change the default behaviour to no-spin on s390.
We do have an instruction which allows to yield the current cpu in favour of
a different target cpu. Also we have an instruction which allows us to figure
out if the target cpu is physically backed.
However we need to do some performance tests until we can come up with
a solution that will do the right thing on s390.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
LKML-Reference: <
20090409184834.
7a0df7b2@osiris.boeblingen.de.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Miklos Szeredi [Thu, 9 Apr 2009 15:37:53 +0000 (17:37 +0200)]
fuse: fix "direct_io" private mmap
MAP_PRIVATE mmap could return stale data from the cache for
"direct_io" files. Fix this by flushing the cache on mmap.
Found with a slightly modified fsx-linux.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Miklos Szeredi [Thu, 9 Apr 2009 15:37:52 +0000 (17:37 +0200)]
fuse: fix argument type in fuse_get_user_pages()
Fix the following warning:
fs/fuse/file.c: In function 'fuse_direct_io':
fs/fuse/file.c:1002: warning: passing argument 3 of 'fuse_get_user_pages' from incompatible pointer type
This was introduced by commit
f4975c67 "fuse: allow kernel to access
"direct_io" files".
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Linus Torvalds [Thu, 9 Apr 2009 15:01:21 +0000 (08:01 -0700)]
Merge git://git./linux/kernel/git/agk/linux-2.6-dm
* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm:
dm kcopyd: fix callback race
dm kcopyd: prepare for callback race fix
dm: implement basic barrier support
dm: remove dm_request loop
dm: rework queueing and suspension
dm: simplify dm_request loop
dm: split DMF_BLOCK_IO flag into two
dm: rearrange dm_wq_work
dm: remove limited barrier support
dm: add integrity support
Herbert Xu [Thu, 9 Apr 2009 02:35:47 +0000 (10:35 +0800)]
module: try_then_request_module must wait
Since the whole point of try_then_request_module is to retry
the operation after a module has been loaded, we must wait for
the module to fully load.
Otherwise all sort of things start breaking, e.g., you won't
be able to read your encrypted disks on the first attempt.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Maciej Rutecki <maciej.rutecki@gmail.com>
Tested-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Wim Van Sebroeck [Thu, 9 Apr 2009 05:51:57 +0000 (05:51 +0000)]
Merge branch 'master' of /linux/kernel/git/torvalds/linux-2.6
Nathan Lynch [Thu, 9 Apr 2009 00:45:12 +0000 (19:45 -0500)]
sched: do not count frozen tasks toward load
Freezing tasks via the cgroup freezer causes the load average to climb
because the freezer's current implementation puts frozen tasks in
uninterruptible sleep (D state).
Some applications which perform job-scheduling functions consult the
load average when making decisions. If a cgroup is frozen, the load
average does not provide a useful measure of the system's utilization
to such applications. This is especially inconvenient if the job
scheduler employs the cgroup freezer as a mechanism for preempting low
priority jobs. Contrast this with using SIGSTOP for the same purpose:
the stopped tasks do not count toward system load.
Change task_contributes_to_load() to return false if the task is
frozen. This results in /proc/loadavg behavior that better meets
users' expectations.
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Nigel Cunningham <nigel@tuxonice.net>
Tested-by: Nigel Cunningham <nigel@tuxonice.net>
Cc: <stable@kernel.org>
Cc: containers@lists.linux-foundation.org
Cc: linux-pm@lists.linux-foundation.org
Cc: Matt Helsley <matthltc@us.ibm.com>
LKML-Reference: <
20090408194512.
47a99b95@manatee.lan>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Li Zefan [Thu, 9 Apr 2009 03:40:27 +0000 (11:40 +0800)]
tracing: consolidate documents
Move kmemtrace.txt, tracepoints.txt, ftrace.txt and mmiotrace.txt to
the new trace/ directory.
I didnt find any references to those documents in both source
files and documents, so no extra work needs to be done.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Pekka Paalanen <pq@iki.fi>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
LKML-Reference: <
49DD6E2B.
6090200@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Jaswinder Singh Rajput [Wed, 8 Apr 2009 17:19:46 +0000 (22:49 +0530)]
x86: cpu_debug remove execute permission
It seems by mistake these files got execute permissions so removing it.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
LKML-Reference: <
1239211186.9037.2.camel@ht.satnam>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Li Zefan [Thu, 9 Apr 2009 03:19:40 +0000 (11:19 +0800)]
blktrace: pass the right pointer to kfree()
Impact: fix kfree crash with non-standard act_mask string
If passing a string with leading white spaces to strstrip(),
the returned ptr != the original ptr.
This bug was introduced by me.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <
49DD694C.
8020902@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Frederic Weisbecker [Wed, 8 Apr 2009 18:40:59 +0000 (20:40 +0200)]
tracing/syscalls: use a dedicated file header
Impact: fix build warnings and possibe compat misbehavior on IA64
Building a kernel on ia64 might trigger these ugly build warnings:
CC arch/ia64/ia32/sys_ia32.o
In file included from arch/ia64/ia32/sys_ia32.c:55:
arch/ia64/ia32/ia32priv.h:290:1: warning: "elf_check_arch" redefined
In file included from include/linux/elf.h:7,
from include/linux/module.h:14,
from include/linux/ftrace.h:8,
from include/linux/syscalls.h:68,
from arch/ia64/ia32/sys_ia32.c:18:
arch/ia64/include/asm/elf.h:19:1: warning: this is the location of the previous definition
[...]
sys_ia32.c includes linux/syscalls.h which in turn includes linux/ftrace.h
to import the syscalls tracing prototypes.
But including ftrace.h can pull too much things for a low level file,
especially on ia64 where the ia32 private headers conflict with higher
level headers.
Now we isolate the syscall tracing headers in their own lightweight file.
Reported-by: Tony Luck <tony.luck@intel.com>
Tested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Jason Baron <jbaron@redhat.com>
Cc: "Frank Ch. Eigler" <fche@redhat.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Jiaying Zhang <jiayingz@google.com>
Cc: Michael Rubin <mrubin@google.com>
Cc: Martin Bligh <mbligh@google.com>
Cc: Michael Davidson <md@google.com>
LKML-Reference: <
20090408184058.GB6017@nowhere>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Linus Torvalds [Thu, 9 Apr 2009 01:00:55 +0000 (18:00 -0700)]
Merge git://git./linux/kernel/git/rusty/linux-2.6-for-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
work_on_cpu(): rewrite it to create a kernel thread on demand
kthread: move sched-realeted initialization from kthreadd context
kthread: Don't looking for a task in create_kthread() #2
Jeremy Fitzhardinge [Sun, 8 Mar 2009 07:48:41 +0000 (23:48 -0800)]
xen: add FIX_TEXT_POKE to fixmap
FIX_TEXT_POKE[01] are used to map kernel addresses, so they're mapping
pfns, not mfns.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Linus Torvalds [Thu, 9 Apr 2009 00:45:02 +0000 (17:45 -0700)]
Merge git://git.infradead.org/battery-2.6
* git://git.infradead.org/battery-2.6:
pda_power: Add optional OTG transceiver and voltage regulator support
pcf50633_charger: Remove unused mbc_set_status function
pcf50633_charger: Enable periodic charging restart
Linus Torvalds [Thu, 9 Apr 2009 00:44:28 +0000 (17:44 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/security-testing-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
cap_prctl: don't set error to 0 at 'no_change'
Linus Torvalds [Thu, 9 Apr 2009 00:43:58 +0000 (17:43 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
igb: remove sysfs entry that was used to set the number of vfs
igbvf: add new driver to support 82576 virtual functions
drivers/net/eql.c: Fix a dev leakage.
niu: Fix unused variable warning.
r6040: set MODULE_VERSION
bnx2: Don't use reserved names
FEC driver: add missing #endif
niu: Fix error handling
mv643xx_eth: don't reset the rx coal timer on interface up
smsc911x: correct debugging message on mii read timeout
ethoc: fix library build errors
netfilter: ctnetlink: fix regression in expectation handling
netfilter: fix selection of "LED" target in netfilter
netfilter: ip6tables regression fix
Linus Torvalds [Thu, 9 Apr 2009 00:43:39 +0000 (17:43 -0700)]
Merge git://git./linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc: Hook up sys_preadv and sys_pwritev
sparc64: add_node_ranges() must be __init
serial: sunsu: sunsu_kbd_ms_init needs to be __devinit
sparc: Fix section mismatch warnings in cs4231 sound driver.
sparc64: Fix section mismatch warnings in PCI controller drivers.
sparc64: Fix section mismatch warnings in power driver.
sparc64: get_cells() can't be marked __init
Linus Torvalds [Thu, 9 Apr 2009 00:42:32 +0000 (17:42 -0700)]
Merge branch 'ext3-latency-fixes' of git://git./linux/kernel/git/tytso/ext4
* 'ext3-latency-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext3: Try to avoid starting a transaction in writepage for data=writepage
block_write_full_page: switch synchronous writes to use WRITE_SYNC_PLUG
Andrew Morton [Thu, 9 Apr 2009 15:50:37 +0000 (09:50 -0600)]
work_on_cpu(): rewrite it to create a kernel thread on demand
Impact: circular locking bugfix
The various implemetnations and proposed implemetnations of work_on_cpu()
are vulnerable to various deadlocks because they all used queues of some
form.
Unrelated pieces of kernel code thus gained dependencies wherein if one
work_on_cpu() caller holds a lock which some other work_on_cpu() callback
also takes, the kernel could rarely deadlock.
Fix this by creating a short-lived kernel thread for each work_on_cpu()
invokation.
This is not terribly fast, but the only current caller of work_on_cpu() is
pci_call_probe().
It would be nice to find some other way of doing the node-local
allocations in the PCI probe code so that we can zap work_on_cpu()
altogether. The code there is rather nasty. I can't think of anything
simple at this time...
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Oleg Nesterov [Thu, 9 Apr 2009 15:50:36 +0000 (09:50 -0600)]
kthread: move sched-realeted initialization from kthreadd context
kthreadd is the single thread which implements ths "create" request, move
sched_setscheduler/etc from create_kthread() to kthread_create() to
improve the scalability.
We should be careful with sched_setscheduler(), use _nochek helper.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Vitaliy Gusev <vgusev@openvz.org
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Vitaliy Gusev [Thu, 9 Apr 2009 15:50:35 +0000 (09:50 -0600)]
kthread: Don't looking for a task in create_kthread() #2
Remove the unnecessary find_task_by_pid_ns(). kthread() can just
use "current" to get the same result.
Signed-off-by: Vitaliy Gusev <vgusev@openvz.org>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Mikulas Patocka [Wed, 8 Apr 2009 23:27:17 +0000 (00:27 +0100)]
dm kcopyd: fix callback race
If the thread calling dm_kcopyd_copy is delayed due to scheduling inside
split_job/segment_complete and the subjobs complete before the loop in
split_job completes, the kcopyd callback could be invoked from the
thread that called dm_kcopyd_copy instead of the kcopyd workqueue.
dm_kcopyd_copy -> split_job -> segment_complete -> job->fn()
Snapshots depend on the fact that callbacks are called from the singlethreaded
kcopyd workqueue and expect that there is no racing between individual
callbacks. The racing between callbacks can lead to corruption of exception
store and it can also mean that exception store callbacks are called twice
for the same exception - a likely reason for crashes reported inside
pending_complete() / remove_exception().
This patch fixes two problems:
1. job->fn being called from the thread that submitted the job (see above).
- Fix: hand over the completion callback to the kcopyd thread.
2. job->fn(read_err, write_err, job->context); in segment_complete
reports the error of the last subjob, not the union of all errors.
- Fix: pass job->write_err to the callback to report all error bits
(it is done already in run_complete_job)
Cc: stable@kernel.org
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Mikulas Patocka [Wed, 8 Apr 2009 23:27:16 +0000 (00:27 +0100)]
dm kcopyd: prepare for callback race fix
Use a variable in segment_complete() to point to the dm_kcopyd_client
struct and only release job->pages in run_complete_job() if any are
defined. These changes are needed by the next patch.
Cc: stable@kernel.org
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Mikulas Patocka [Wed, 8 Apr 2009 23:27:16 +0000 (00:27 +0100)]
dm: implement basic barrier support
Barriers are submitted to a worker thread that issues them in-order.
The thread is modified so that when it sees a barrier request it waits
for all pending IO before the request then submits the barrier and
waits for it. (We must wait, otherwise it could be intermixed with
following requests.)
Errors from the barrier request are recorded in a per-device barrier_error
variable. There may be only one barrier request in progress at once.
For now, the barrier request is converted to a non-barrier request when
sending it to the underlying device.
This patch guarantees correct barrier behavior if the underlying device
doesn't perform write-back caching. The same requirement existed before
barriers were supported in dm.
Bottom layer barrier support (sending barriers by target drivers) and
handling devices with write-back caches will be done in further patches.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Mikulas Patocka [Wed, 8 Apr 2009 23:27:15 +0000 (00:27 +0100)]
dm: remove dm_request loop
Remove queue_io return value and a loop in dm_request.
IO may be submitted to a worker thread with queue_io(). queue_io() sets
DMF_QUEUE_IO_TO_THREAD so that all further IO is queued for the thread. When
the thread finishes its work, it clears DMF_QUEUE_IO_TO_THREAD and from this
point on, requests are submitted from dm_request again. This will be used
for processing barriers.
Remove the loop in dm_request. queue_io() can submit I/Os to the worker thread
even if DMF_QUEUE_IO_TO_THREAD was not set.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Mikulas Patocka [Wed, 8 Apr 2009 23:27:15 +0000 (00:27 +0100)]
dm: rework queueing and suspension
Rework shutting down on suspend and document the associated rules.
Drop write lock in __split_and_process_bio to allow more processing
concurrency.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Alasdair G Kergon [Wed, 8 Apr 2009 23:27:14 +0000 (00:27 +0100)]
dm: simplify dm_request loop
Refactor the code in dm_request().
Require the new DMF_BLOCK_FOR_SUSPEND flag on readahead bios we will
discard so we don't drop such bios while processing a barrier.
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Alasdair G Kergon [Wed, 8 Apr 2009 23:27:14 +0000 (00:27 +0100)]
dm: split DMF_BLOCK_IO flag into two
Split the DMF_BLOCK_IO flag into two.
DMF_BLOCK_IO_FOR_SUSPEND is set when I/O must be blocked while suspending a
device. DMF_QUEUE_IO_TO_THREAD is set when I/O must be queued to a
worker thread for later processing.
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Alasdair G Kergon [Wed, 8 Apr 2009 23:27:13 +0000 (00:27 +0100)]
dm: rearrange dm_wq_work
Refactor dm_wq_work() to make later patch more readable.
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Mikulas Patocka [Wed, 8 Apr 2009 23:27:13 +0000 (00:27 +0100)]
dm: remove limited barrier support
Prepare for full barrier implementation: first remove the restricted support.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Martin K. Petersen [Wed, 8 Apr 2009 23:27:12 +0000 (00:27 +0100)]
dm: add integrity support
This patch provides support for data integrity passthrough in the device
mapper.
- If one or more component devices support integrity an integrity
profile is preallocated for the DM device.
- If all component devices have compatible profiles the DM device is
flagged as capable.
- Handle integrity metadata when splitting and cloning bios.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Serge E. Hallyn [Wed, 8 Apr 2009 21:55:58 +0000 (16:55 -0500)]
cap_prctl: don't set error to 0 at 'no_change'
One-liner: capsh --print is broken without this patch.
In certain cases, cap_prctl returns error > 0 for success. However,
the 'no_change' label was always setting error to 0. As a result,
for example, 'prctl(CAP_BSET_READ, N)' would always return 0.
It should return 1 if a process has N in its bounding set (as
by default it does).
I'm keeping the no_change label even though it's now functionally
the same as 'error'.
Signed-off-by: Serge Hallyn <serue@us.ibm.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
Alexander Duyck [Tue, 7 Apr 2009 14:37:52 +0000 (14:37 +0000)]
igb: remove sysfs entry that was used to set the number of vfs
This patch removes the sysfs entry num_vfs which was added to support
enabling pci virtual functions for 82576.
To prevent VFs from loading automatically a module parameter "max_vfs" was
added so that the number of VFs per PF can be limited. This is especially
useful when 4 or more 82576 ports are on the system because otherwise to
load all VFs would result in 8 interface per physical port.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Duyck [Tue, 7 Apr 2009 14:37:34 +0000 (14:37 +0000)]
igbvf: add new driver to support 82576 virtual functions
This adds an igbvf driver to handle virtual functions provided by the
igb driver when SR-IOV has been enabled. A virtual function is a
lightweight pci-e function that supports a single queue and shares
resources with the 82576 physical function contained within the igb
driver.
To spawn virtual functions from the igb driver all that is needed is to
enable CONFIG_PCI_IOV and have an 82576 Ethernet adapter on a system that
supports SR-IOV in the BIOS. The virtual functions will appear after the
interface is loaded.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yang Hongyang [Wed, 8 Apr 2009 22:56:33 +0000 (15:56 -0700)]
drivers/net/eql.c: Fix a dev leakage.
After dev_get_by_name(), we should follow a dev_put().
Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 8 Apr 2009 22:52:16 +0000 (15:52 -0700)]
niu: Fix unused variable warning.
Don't strain gcc's tiny mind.
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Wed, 8 Apr 2009 22:50:43 +0000 (15:50 -0700)]
r6040: set MODULE_VERSION
This patch sets MODULE_VERSION in order to help users track
changes to this module.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bastian Blank [Wed, 8 Apr 2009 22:50:07 +0000 (15:50 -0700)]
bnx2: Don't use reserved names
The mips identifier is reserved by gcc on mips plattforms. Don't use it
in the code.
Signed-off-by: Bastian Blank <waldi@debian.org>
Tested-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sascha Hauer [Wed, 8 Apr 2009 22:44:45 +0000 (15:44 -0700)]
FEC driver: add missing #endif
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Carpenter [Wed, 8 Apr 2009 22:44:04 +0000 (15:44 -0700)]
niu: Fix error handling
platform_device_register_simple() returns ERR_PTR(), not NULL, if an error
occurs.
Found by smatch (http://repo.or.cz/w/smatch.git). Compile tested.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Lennert Buytenhek [Wed, 8 Apr 2009 22:42:46 +0000 (15:42 -0700)]
mv643xx_eth: don't reset the rx coal timer on interface up
Move SDMA configuration from interface up to port probe, to prevent
overwriting the receive coalescing timer value on interface up.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve Glendinning [Wed, 8 Apr 2009 22:42:15 +0000 (15:42 -0700)]
smsc911x: correct debugging message on mii read timeout
the warning printed when a mii READ times out currently says "Timed out
waiting for MII write to finish". This patch corrects this.
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Randy Dunlap [Wed, 8 Apr 2009 22:41:25 +0000 (15:41 -0700)]
ethoc: fix library build errors
ethoc indirectly uses crc32_le() and bitrev32(), so select
those library functions to be built.
drivers/built-in.o: In function `ethoc_set_multicast_list':
ethoc.c:(.text+0x6226f): undefined reference to `crc32_le'
ethoc.c:(.text+0x62276): undefined reference to `bitrev32'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Wed, 8 Apr 2009 22:36:42 +0000 (15:36 -0700)]
Merge branch 'release' of git://git./linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] wire up preadv/pwritev system calls
Linus Torvalds [Wed, 8 Apr 2009 22:32:06 +0000 (15:32 -0700)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
x86 ACPI: Add support for Always Running APIC timer
ACPI x86: Make aperf/mperf MSR access in acpi_cpufreq read_only
ACPI x86: Cleanup acpi_cpufreq structures related to aperf/mperf
ACPICA: delete check for AML access to port 0x81-83
ACPI: WMI: use .notify method instead of installing handler directly
sony-laptop: use .notify method instead of installing handler directly
panasonic-laptop: use .notify method instead of installing handler directly
fujitsu-laptop: use .notify method instead of installing hotkey handler directly
fujitsu-laptop: use .notify method instead of installing handler directly
ACPI: video: use .notify method instead of installing handler directly
ACPI: thermal: use .notify method instead of installing handler directly
ACPI battery: fix async boot oops
ACPI: delete acpi_device.g_list
NULL noise: drivers/platform/x86/panasonic-laptop.c
ACPI: cpufreq: remove dupilcated #include
ACPI: Adjust Kelvin offset to match local implementation
ACPI: convert acpi_device_lock spinlock to mutex
Linus Torvalds [Wed, 8 Apr 2009 22:24:09 +0000 (15:24 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 5446/1: ohci-at91: Limit vbus_pin assignment to the size of the array
[ARM] 5445/1: AT91: Remove flexible array from USBH platform data
[ARM] 5447/1: Add SZ_32K
[ARM] omap: fix omap1 clock usecount decrement bug
[ARM] pxa: register AC97 controller devices
[ARM] pxa/csb701: do not register devices on non-csb726 boads
[ARM] pxa/colibri: get rid of set_irq_type()
[ARM] pxa/colibri: provide MAC address from ATAG_SERIAL
[ARM] pxa/cm-x2xx: fix ucb1400 not being registered
[ARM] pxa: Add support for suspend on PalmTX, T5 and LD
[ARM] pxa: PalmTE2 support for battery, UDC, IrDA and backlight
[ARM] pxa: Palm Tungsten E2 basic support
[ARM] pxa/em-x270: add libertas device registration
[ARM] pxa/magician: Enable bq24022 regulator for gpio_vbus and pda_power
Linus Torvalds [Wed, 8 Apr 2009 21:33:59 +0000 (14:33 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/drzeus/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
mmc_spi: support for non-byte-aligned cards
omap_hsmmc: Do not expect cmd/data to be non-null when CC/TC occurs
mmc: Fix compile for omap_hsmmc.c
mmc_spi: convert timeout handling to jiffies and avoid busy waiting
mmc_spi: do not check CID and CSD blocks with CRC16
omap_hsmmc: Flush posted write to IRQ
New mail address for Pierre Ossman
imxmmc: move RSSR BLR
imxmmc: init-exit rework
mmc: Accept EXT_CSD rev 1.3 since it is backwards compatible with 1.2
Alan Cox [Wed, 8 Apr 2009 19:13:16 +0000 (20:13 +0100)]
tty: MAX3100
Thou shalt remember to use 'git add' or errors shall be visited on your
downloads and there shall be wrath from on list and much gnashing of teeth.
Thou shalt remember to use git status or there shall be catcalls and much
embarrasment shall come to pass.
Signed-off-by: Alan "I'm hiding" Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Roland Dreier [Wed, 8 Apr 2009 21:28:21 +0000 (14:28 -0700)]
Merge branches 'cma', 'cxgb3', 'ipoib', 'mlx4' and 'nes' into for-next
Chien Tung [Wed, 8 Apr 2009 21:27:56 +0000 (14:27 -0700)]
RDMA/nes: Add support for new SFP+ PHY
Add new register settings for new SFP+ PHY/firmware.
Add new PHY to to nes_netdev_get/set_settings.
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Chien Tung [Wed, 8 Apr 2009 21:27:18 +0000 (14:27 -0700)]
RDMA/nes: Add wide_ppm_offset parm for switch compatibility
We have observed unstable link with a new BNT switch.
Add wide_ppm_offset parameter to allow the user to control the clock
ppm offset on the CX4 interface for better compatibility. Default is
100ppm, setting it to 1 will increase it to 300ppm. Change default
SerDes1 reference clock to external source.
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Chien Tung [Wed, 8 Apr 2009 21:27:09 +0000 (14:27 -0700)]
RDMA/nes: Fix SFP+ PHY initialization
SFP+ PHY initialization has very long delays, incorrect settings for
direct attach copper cables, and inconsistent link detection.
Adjust delays to the minimum required by the PHY. Worst case is now
less than 4 seconds. Add new register settings for direct attach
cables. Change link detection logic to use two new registers for more
consistent link state detection. Reorganize code to shorten line
length.
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Ian Campbell [Thu, 2 Apr 2009 12:24:28 +0000 (13:24 +0100)]
xen: honour VCPU availability on boot
If a VM is booted with offline VCPUs then unplug them during boot. Determining
the availability of a VCPU requires access to XenStore which is not available
at the point smp_prepare_cpus() is called, therefore we bring up all VCPUS
initially and unplug the offline ones as soon as XenStore becomes available.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Jeremy Fitzhardinge [Mon, 30 Mar 2009 05:57:15 +0000 (22:57 -0700)]
xen: clean up gate trap/interrupt constants
Use GATE_INTERRUPT/TRAP rather than 0xe/f.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Jeremy Fitzhardinge [Fri, 27 Mar 2009 18:29:02 +0000 (11:29 -0700)]
xen: set _PAGE_NX in __supported_pte_mask before pagetable construction
Some 64-bit machines don't support the NX flag in ptes.
Check for NX before constructing the kernel pagetables.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Ian Campbell [Wed, 25 Mar 2009 17:46:42 +0000 (17:46 +0000)]
xen: resume interrupts before system devices.
Impact: bugfix Xen domain restore
Otherwise the first timer interrupt after resume is missed and we never
get another.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Jeremy Fitzhardinge [Thu, 5 Mar 2009 01:36:57 +0000 (17:36 -0800)]
xen/mmu: weaken flush_tlb_other test
Impact: fixes crashing bug
There's no particular problem with getting an empty cpu mask,
so just shortcut-return if we get one.
Avoids crash reported by Christophe Saout <christophe@saout.de>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Jeremy Fitzhardinge [Tue, 17 Mar 2009 20:30:55 +0000 (13:30 -0700)]
xen/mmu: some early pagetable cleanups
1. make sure early-allocated ptes are pinned, so they can be later
unpinned
2. don't pin pmd+pud, just make them RO
3. scatter some __inits around
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Faisal Latif [Wed, 8 Apr 2009 21:23:55 +0000 (14:23 -0700)]
RDMA/nes: Fix nes_nic_cm_xmit() error handling
We are getting crash or hung situation when we are running network
cable pull tests during RDMA traffic.
In schedule_nes_timer(), we return an error if nes_nic_cm_xmit()
returns failure. This is changed to success as skb is being put on
the timer routines to be processed later. In send_syn() case, we are
indicating connect failure once from nes_connect() and the other when
the rexmit retries expires.
The other issue is skb->users which we are incrementing before calling
nes_nic_cm_xmit() which calls dev_queue_xmit() but in case of failure
we are decrementing the skb->users at the same time putting the skb on
the rexmit path. Even if dev_queue_xmit() fails, the skb->users is
decremented already. We are removing the decrement of skb->users in
case of failure from both schedule_nes_timer() as well as from
nes_cm_timer_tick().
There is also extra check in nes_cm_timer_tick() for rexmit failure
which does a break from the loop is removed. This causes problem as
the other nodes have their cm_node->ref_count incremented and are not
processed.
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Faisal Latif [Wed, 8 Apr 2009 21:22:20 +0000 (14:22 -0700)]
RDMA/nes: Fix error handling issues
Fix issues found by static code analysis:
(1) Check if cm_node was successfully created for loopback connection.
(2) schedule_nes_timer() does not free up allocated memory after
encountering an error. There is a WARN_ON() for this condition.
(3) there is a cm_node->freed flag which is set but not used.
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Don Wood [Wed, 8 Apr 2009 21:21:02 +0000 (14:21 -0700)]
RDMA/nes: Fix incorrect casts on 32-bit architectures
The were some incorrect casts to unsigned long that caused 64-bit values
to be truncated on 32-bit architectures and made the driver pass invalid
adresses and lengths to the hardware. The problems were primarily seen
with kernels with highmem configured but some could show up in
non-highmem kernels, too.
Signed-off-by: Don Wood <donald.e.wood@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Or Gerlitz [Wed, 8 Apr 2009 20:52:01 +0000 (13:52 -0700)]
IPoIB: Document newish features
Update the documentation to include connected mode, stateless offloads
and interrupt moderation, and add a reference to the connected mode RFC.
Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Tony Luck [Wed, 8 Apr 2009 20:46:14 +0000 (13:46 -0700)]
[IA64] wire up preadv/pwritev system calls
Gerd Hoffmann added these to Linux. Let ia64 use them.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Yossi Etigin [Wed, 8 Apr 2009 20:42:33 +0000 (13:42 -0700)]
RDMA/cma: Create cm id even when IB port is down
When doing rdma_resolve_addr(), if the relevant IB port is down, the
function fails and the cm_id is not bound to the correct device.
Therefore, application does not have a device handle and cannot wait
for the port to become active. The function fails because the
underlying IPoIB interface is not joined to the broadcast group and
therefore the SA does not have a multicast record to take a Q_Key
from.
The fix is to use lazy Q_Key resolution - cma_set_qkey() will set
id_priv->qkey if it was not set, and will be called just before the
Q_Key is really required.
Signed-off-by: Yossi Etigin <yosefe@voltaire.com>
Acked-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
David S. Miller [Wed, 8 Apr 2009 20:39:54 +0000 (13:39 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/kaber/nf-2.6
Justin Waters [Fri, 3 Apr 2009 20:06:53 +0000 (21:06 +0100)]
[ARM] 5446/1: ohci-at91: Limit vbus_pin assignment to the size of the array
Currently, the vbus_pin assignment loop is limited by the value of the "ports"
variable in the platform data. Now that the vbus_pin array is no longer
flexible, we can use its actual size.
Signed-off-by: Justin Waters <justin.waters@timesys.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Justin Waters [Fri, 3 Apr 2009 20:03:59 +0000 (21:03 +0100)]
[ARM] 5445/1: AT91: Remove flexible array from USBH platform data
The flexible array in the USBH platform data is not safe to copy. The
compiler will not allocate any extra memory for the non-init platform
data structure (in the *_devices.c files) since it isn't given any
defaults at compile time. When the probe function attempts to address
that array, it will actually attempt to access data in an adjacent
structure.
Since there are currently no (known) implementations of the at91 USBH
IP with more than 2 vbus pins, I am capping the value at 2. If somebody
tries to assign more, then the compiler will produce a warning.
Signed-off-by: Justin Waters <justin.waters@timesys.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Linus Walleij [Wed, 8 Apr 2009 00:32:20 +0000 (01:32 +0100)]
[ARM] 5447/1: Add SZ_32K
This adds a SZ_32K define to the available sizes. I need it for an
upcoming platform support.
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Alex Nixon [Mon, 9 Feb 2009 20:05:46 +0000 (12:05 -0800)]
Xen: Add virt_to_pfn helper function
Signed-off-by: Alex Nixon <alex.nixon@citrix.com>
Jeremy Fitzhardinge [Sun, 8 Mar 2009 10:59:04 +0000 (03:59 -0700)]
x86-64: remove PGE from must-have feature list
PGE may not be available when running paravirtualized, so test the cpuid
bit before using it.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Jeremy Fitzhardinge [Sun, 8 Mar 2009 01:09:27 +0000 (17:09 -0800)]
xen: mask XSAVE from cpuid
Xen leaves XSAVE set in cpuid, but doesn't allow cr4.OSXSAVE
to be set. This confuses the kernel and it ends up crashing on
an xsetbv instruction.
At boot time, try to set cr4.OSXSAVE, and mask XSAVE out of
cpuid it we can't. This will produce a spurious error from Xen,
but allows us to support XSAVE if/when Xen does.
This also factors out the cpuid mask decisions to boot time.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Hannes Eder [Thu, 5 Mar 2009 19:13:57 +0000 (20:13 +0100)]
NULL noise: arch/x86/xen/smp.c
Fix this sparse warnings:
arch/x86/xen/smp.c:316:52: warning: Using plain integer as NULL pointer
arch/x86/xen/smp.c:421:60: warning: Using plain integer as NULL pointer
Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Jeremy Fitzhardinge [Thu, 5 Mar 2009 00:34:27 +0000 (16:34 -0800)]
xen: remove xen_load_gdt debug
Don't need the noise.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Jeremy Fitzhardinge [Wed, 4 Mar 2009 23:26:00 +0000 (15:26 -0800)]
xen: make xen_load_gdt simpler
Remove use of multicall machinery which is unused (gdt loading
is never performance critical). This removes the implicit use
of percpu variables, which simplifies understanding how
the percpu code's use of load_gdt interacts with this code.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Jeremy Fitzhardinge [Wed, 4 Mar 2009 21:02:18 +0000 (13:02 -0800)]
xen: clean up xen_load_gdt
Makes the logic a bit clearer.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Jeremy Fitzhardinge [Fri, 27 Feb 2009 23:34:59 +0000 (15:34 -0800)]
xen: split construction of p2m mfn tables from registration
Build the p2m_mfn_list_list early with the rest of the p2m table, but
register it later when the real shared_info structure is in place.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Jeremy Fitzhardinge [Thu, 26 Feb 2009 23:48:33 +0000 (15:48 -0800)]
xen: separate p2m allocation from setting
When doing very early p2m setting, we need to separate setting
from allocation, so split things up accordingly.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Jeremy Fitzhardinge [Sat, 21 Feb 2009 07:01:26 +0000 (23:01 -0800)]
xen: disable preempt for leave_lazy_mmu
xen_mc_flush() requires preemption to be disabled for its own sanity,
so disable it while we're flushing.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Wolfgang Muees [Wed, 8 Apr 2009 08:48:58 +0000 (09:48 +0100)]
mmc_spi: support for non-byte-aligned cards
A very large subset of SD cards in the market send their
responses and data non-byte-aligned. So add logic to the
mmc spi driver to handle this mess.
Signed-off-by: Wolfgang Muees <wolfgang.mues@auerswald.de>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
Jarkko Lavinen [Wed, 8 Apr 2009 08:18:32 +0000 (11:18 +0300)]
omap_hsmmc: Do not expect cmd/data to be non-null when CC/TC occurs
With spurious interrupt cmd can be null even when we have CC
set in irq status.
Fixes: NB#106295 - prevent potential kernel crash in the MMC driver
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
Tony Lindgren [Wed, 8 Apr 2009 00:04:33 +0000 (17:04 -0700)]
mmc: Fix compile for omap_hsmmc.c
This fixes the issue noted by Russell King:
drivers/mmc/host/omap_hsmmc.c: In function 'mmc_omap_xfer_done':
drivers/mmc/host/omap_hsmmc.c:301: error: implicit declaration of function 'mmc_omap_fclk_lazy_disable'
This got broken by
4a694dc915c9a223044ce21fc0d99e63facd1d64.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
Wolfgang Muees [Tue, 7 Apr 2009 14:26:30 +0000 (15:26 +0100)]
mmc_spi: convert timeout handling to jiffies and avoid busy waiting
SD/MMC card timeouts can be very high. So avoid busy-waiting,
using the scheduler. Calculate all timeouts in jiffies units,
because this will give us the correct sign when to involve
the scheduler.
Signed-off-by: Wolfgang Muees <wolfgang.mues@auerswald.de>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
Wolfgang Muees [Tue, 7 Apr 2009 13:48:16 +0000 (14:48 +0100)]
mmc_spi: do not check CID and CSD blocks with CRC16
Some cards are not able to calculate a valid CRC16 value
for CID and CSD reads (CRC for 512 byte data blocks is OK).
By moving the CRC enable after the read of CID and CSD, these
cards can be used. This patch was tested with a faulty 8 GByte
takeMS Class 6 SDHC card. This patch was suggested by
Pierre Ossman.
Signed-off-by: Wolfgang Muees <wolfgang.mues@auerswald.de>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
Kevin Hilman [Mon, 6 Apr 2009 12:01:19 +0000 (15:01 +0300)]
omap_hsmmc: Flush posted write to IRQ
Spurious IRQs seen on MMC after 2.6.29. Flush posted write in IRQ
handler.
The interrupt line is released by clearing the error status bits
in the MMCHS_STAT register, which must occur before the interrupt
handler returns to avoid unwanted irqs. Hence the need to flush
the posted write.
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Acked-by: Tony Lindgen <tony@atomide.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
Pierre Ossman [Wed, 8 Apr 2009 18:14:54 +0000 (20:14 +0200)]
New mail address for Pierre Ossman
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
Paulius Zaleckas [Wed, 25 Mar 2009 09:18:50 +0000 (11:18 +0200)]
imxmmc: move RSSR BLR
DMA request source (RSSR) needs to be set only once (in probe).
DMA burst length (BLR) need to be set only in set_ios()
This cleans up imxmci_setup_data() and should make it a little
bit faster :)
Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Paulius Zaleckas [Wed, 25 Mar 2009 09:17:42 +0000 (11:17 +0200)]
imxmmc: init-exit rework
Add __init __exit for appropriate probe and remove functions.
Conver to platform_driver_probe()
Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Jarkko Lavinen [Thu, 27 Nov 2008 12:30:32 +0000 (14:30 +0200)]
mmc: Accept EXT_CSD rev 1.3 since it is backwards compatible with 1.2
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Eric Anholt [Thu, 12 Mar 2009 23:56:27 +0000 (16:56 -0700)]
drm/i915: Allow tiling of objects with bit 17 swizzling by the CPU.
Save the bit 17 state of the pages when freeing the page list, and
reswizzle them if necessary when rebinding the pages (in case they were
swapped out). Since we have userland with expectations that the swizzle
enums let it pread and pwrite contents accurately, we can't expose a new
swizzle enum for bit 17 (which it would have to GTT map to handle), so we
handle it down in pread and pwrite by swizzling the copy when bit 17 of the
page address is set.
Signed-off-by: Eric Anholt <eric@anholt.net>
Eric Anholt [Tue, 7 Apr 2009 23:01:22 +0000 (16:01 -0700)]
drm/i915: Correctly set the write flag for get_user_pages in pread.
Otherwise, the results of our read didn't show up when we were faulting in
the page being read into (as happened with a testcase reading into a big
stack area). Likely accounts for some conformance test failures.
Signed-off-by: Eric Anholt <eric@anholt.net>
Roland McGrath [Wed, 8 Apr 2009 06:21:06 +0000 (23:21 -0700)]
ptrace: some checkpatch fixes
This fixes all the checkpatch --file complaints about kernel/ptrace.c
and also removes an unused #include. I've verified that there are no
changes to the compiled code on x86_64.
Signed-off-by: Roland McGrath <roland@redhat.com>
[ Removed the parts that just split a line - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Nobuhiro Iwamatsu [Wed, 8 Apr 2009 04:21:43 +0000 (21:21 -0700)]
nommu: fix typo vma->pg_off to vma->vm_pgoff
6260a4b0521a41189b2c2a8119096c1e21dbdf2c ("/proc/pid/maps: don't show
pgoff of pure ANON VMAs" had a typo.
fs/proc/task_nommu.c:138: error: 'struct vm_area_struct' has no member named 'pg_off'
distcc[21484] ERROR: compile fs/proc/task_nommu.c on sprygo/32 failed
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alexander Beregalov [Wed, 8 Apr 2009 04:21:42 +0000 (21:21 -0700)]
befs: fix build on parisc
fs/befs/super.c:85: error: 'PAGE_SIZE' undeclared
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Florian Mickler [Mon, 6 Apr 2009 20:55:41 +0000 (22:55 +0200)]
drm/i915: Fix use of uninitialized var in
40a5f0de
i915_gem_put_relocs_to_user returned an uninitialized value which
got returned to userspace. This caused libdrm in my setup to never
get out of a do{}while() loop retrying i915_gem_execbuffer.
result was hanging X, overheating of cpu and 2-3gb of logfile-spam.
This patch adresses the issue by
1. initializing vars in this file where necessary
2. correcting wrongly interpreted return values of copy_[from/to]_user
Signed-off-by: Florian Mickler <florian@mickler.org>
[anholt: cleanups of unnecessary changes, consistency in APIs]
Signed-off-by: Eric Anholt <eric@anholt.net>
Ferenc Wagner [Mon, 6 Apr 2009 12:55:09 +0000 (14:55 +0200)]
drm/i915: indicate framebuffer restore key in SysRq help message
At the same time, bring the action message closer to the usual format.
Signed-off-by: Ferenc Wagner <wferi@niif.hu>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Ma Ling [Thu, 2 Apr 2009 05:13:26 +0000 (13:13 +0800)]
drm/i915: sync hdmi detection by hdmi identifier with 2D
Currently we detect HDMI monitor by hardware detection, but if an HDMI-DVI
adapter is used to connect a DVI monitor, hardware detection will incorrectly
take monitor as HDMI. HDMI spec says any device containing IEEE registration
identifier will be treated as HDMI device. The patch intends to detect HDMI
monitor by drm_detect_hdmi_monitor function which follows that rule.
Signed-off-by: Ma Ling <ling.ma@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>